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jackscrew

Examples

  • Brief and Straightforward Guide: What Is a Jackscrew? Found on a number of electronic components, a jackscrew is a unique screw that is part of the design for various types of electrical connectors. — “What Is a Jackscrew?”,
  • Listen to and buy Jackscrew music on CD Baby. Download or buy the CD s/t by Jackscrew on the independent record store by musicians for musicians. — “Jackscrew | s/t | CD Baby”,
  • Find dictionary definitions, audio pronunciations, and spellings for jackscrew in the free online American Heritage Dictionary on Yahoo! Education. — “jackscrew - Dictionary definition and pronunciation - Yahoo!”,
  • Myspace Music profile for Jackscrew. Download Jackscrew Experimental / Folk / Death Metal music singles, watch music videos, listen to free streaming mp3s, & read Jackscrew's blog. — “Jackscrew on Myspace Music - Free Streaming MP3s, Pictures”,
  • Jackscrew definition, a jack for lifting consisting of a screw steadied by a threaded support and carrying a plate or other part bearing the load. See more. — “Jackscrew | Define Jackscrew at ”,
  • A jackscrew's compressive force is obtained through the tension force applied by its leadscrew. An Acme thread is most often used, as this thread is very strong and can resist the large loads imposed on most jackscrews while not being dramatically weakened by wear over many rotations. — “Jackscrew - Wikipedia, the free encyclopedia”,
  • jackscrew ( ) n. A jack operated by a screw. Also called screw jack. A jackscrew's compressive force is obtained through the tension force applied by its leadscrew. — “jackscrew: Definition from ”,
  • Definition of jackscrew in the Medical Dictionary. jackscrew explanation. Information about jackscrew in Free online English dictionary. What is jackscrew? Meaning of jackscrew medical term. What does jackscrew mean?. — “jackscrew - definition of jackscrew in the Medical dictionary”, medical-
  • We found 23 dictionaries with English definitions that include the word jackscrew: jackscrew: American Heritage Dictionary of the English Language [home, info] jackscrew: Merriam-Webster's Online Dictionary, 11th Edition [home, info]. — “Definitions of jackscrew - OneLook Dictionary Search”,
  • Manufacturer of precision electronic hardware. UNICORP Electronic Hardware Manufacturer Since 1971. Home Search Order Quote Cross Catalog Reps Technical Terms Distributors About Us Contact Us. — “Unicorp”,
  • Alaska Airlines found a jackscrew that had not been properly lubricated on one of its jets during an inspection of its MD-80 fleet this week. Failure of the jackscrew part of the tail section that helps control the plane's angle of flight led to. — “ - Alaska Airlines finds improperly serviced”,
  • Jackscrew News. Find breaking news, commentary, and archival information about Jackscrew from the CNN. — “Articles about Jackscrew - CNN”,
  • Jackscrew information including symptoms, causes, diseases, symptoms, treatments, and other medical and health issues. — “Jackscrew - ”,
  • 3/16 Hex Jackscrew. Create a part number: Prefix ( FC') + Part Number 3/16 Hex Jackscrew. Part # Length B. FC47501. 3/16. FC47502. 1/4. FC47503. 5/16. FC47504. 3/8. — “Jackscrew”,
  • StarTechcom Jackscrew Standoffs at Office Depot. Taking Care of Business. 544173|||StarTechcom Jackscrew Standoffs|||Computer Cases/Enclosures|*rating*-_-*count*-_--_-1. — “StarTechcom Jackscrew Standoffs by Office Depot”,
  • Order CONN JACKSCREW 4-40 0.210" 2PC-747784-8 online from Digi-Key Canada. Manufactured by Tyco Electronics. Digi-Key part number 747784-8-ND. — “CONN JACKSCREW 4-40 0.210" 2PC - 747784-8”, parts.digikey.ca
  • Pronunciation of jackscrew. Translations of jackscrew. jackscrew synonyms, jackscrew antonyms. Information about jackscrew in the free online English dictionary and However, when the jackscrew is installed under a part and clamped down, there is a tendency to bend the part with any excessive force. — “jackscrew - definition of jackscrew by the Free Online”,
  • Definition of word from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. — “Jackscrew - Definition and More from the Free Merriam-Webster”, merriam-
  • More on jackscrew from Infoplease: screw - screw screw, simple machine consisting jackscrew: meaning and definitions - jackscrew: Definition and Pronunciation. — “jackscrew — ”,
  • Gimbal Nut and Jackscrew. Gimbal nut from Alaska Airlines flight 261, shown below as attached to front spar of stablizer from the aircraft's tail, and Jackscrew from horizontal stabilizer of Alaska Airlines flight 261, below. — “NTSB - Alaska Airlines Flight 261”, ntsb.gov
  • [LOCATION] You are located in menu-tree (+1) for the word-cloud of "jackscrew" [VIEW] The number below that words indicates the max. amount of logical connections to "jackscrew", that are available. — “jackscrew”, w9
  • In order to achieve accurate tension with a jackscrew nut it is required to follow a bolting pattern in at least three increments. The Jackscrew-Nut Simultorc Adapter from the Torque Gun Company works together with your TorcGun Pneumatic. — “Jackscrew-Nut Simultorc Adapter”,
  • Definition of jackscrew from Webster's New World College Dictionary. Meaning of jackscrew. Pronunciation of jackscrew. Definition of the word jackscrew. Origin of the word jackscrew. — “jackscrew - Definition of jackscrew at ”,

Videos

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  • Air Crash Investigation S01E06 - Cutting Corners part 4 Alaska Airlines Flight 261 is heading for Seattle via San Francisco but its trimmable horizontal stabilizer jams due to an improperly maintained jackscrew assembly. The stabilizer breaks free from its control system and the aircraft dives inverted into the Pacific Ocean, causing the death of all on board.
  • Air Crash Investigation: [S01E05] Cutting Corners (6/6) Alaska Airlines Flight 261, a McDonnell Douglas MD-83 aircraft, experienced a fatal accident on January 31, 2000 in the Pacific Ocean about 2.7 miles (4.3 km) north of Anacapa Island, California. The two pilots, three cabin crewmembers, and 83 passengers on board were killed and the aircraft was destroyed. It was the highest ever death toll of any aviation accident involving a McDonnell Douglas MD-83. Alaska 261 was a scheduled international passenger flight from Lic. Gustavo Díaz Ordaz International Airport in Puerto Vallarta, Mexico, to Seattle-Tacoma International Airport in Seattle, Washington, with an intermediate stop planned at San Francisco International Airport in San Francisco, California. The subsequent investigation by the National Transportation Safety Board determined that inadequate maintenance led to excessive wear and catastrophic failure of a critical flight control system during flight. The probable cause was stated to be "a loss of airplane pitch control resulting from the in-flight failure of the horizontal stabilizer trim system jackscrew assembly's acme nut threads. The thread failure was caused by excessive wear resulting from Alaska Airlines's insufficient lubrication of the jackscrew assembly."
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  • Finally Some Eye Relief... "Insider Reveals Weather ***s :"Tried of looking at those nasty persistent aerosol trails... this should bring relief... what a bird.Thank heaven for little girls.Boise,where the grills are hotter.Summer has arrived. Check out the link below...Thorium poisoning.Insider reveals shocking details.Go to: www.chemtrails.ch .These 1 micron and sub-micron dusts, upon falling through the Atmosphere, could conceivably find deposition onto a somewhat adhesive surface, inside the working flight components of all aircraft traveling through the "grit-plume". The greases used on the Horizontal and Vertical Stabilizers, Ailerons, Flaps and Landing Gear trucks may be seriously damaged with abrasion of metals on the aircraft. A horizontal-stabilizer Jack-Screw continuously coated with these highly abrasive dusts from the Welsbach Refractory materials will cause a gradual milling of the jack-screw metals and cause complete failure, jamming the flight controls into an uncontrollable down or up attitude configuration.governor butch otter.Watch this: weather ***s: emil j kovach jr the fag,
  • Electric R/C Airplane Retracts - Modified Robart 630 Air Retracts w/ controlling electronics! This is a DIY Conversion of Robart retracts by replacing the air cylinder with an gear-motor driven jack-screw type actuator. The controlling electronics include a DC Motor H-Bridge and a 12F683 PIC is used to drive the H-bridge controller while also reading the current feedback (proportional voltage) from the H-Bridge. This current measurement is used to determine end positions, rather than implementing complicated limit switches. Works amazingly well... I will be fitting my electric-powered CMPro 1/4 scale Japanese Zero (A6M5) with these modified Robart electric actuated retracts!
  • Air Crash Investigations: Cutting Corners On 31 January 2000, Alaska Airlines Flight 261's trimmable horizontal stabilizer jammed and broke free from its control system and the aircraft dove inverted into the Pacific Ocean, causing the death of all on board. The stabilizer failed due to an improperly maintained jackscrew assembly.
  • [HD] Alaska 261 -Air Crash Investigation- (Cutting Corners) Alaska Airlines Flight 261, a McDonnell Douglas MD-83 aircraft, experienced a fatal accident on January 31, 2000 in the Pacific Ocean about 2.7 miles (4.3 km) north of Anacapa Island, California. The two pilots, three cabin crewmembers, and 83 passengers on board were killed—the highest death toll of any aviation accident involving a McDonnell Douglas MD-83 ever, and the aircraft was destroyed. Alaska 261 was a scheduled international passenger flight from Lic. Gustavo Díaz Ordaz International Airport in Puerto Vallarta, Mexico, to Seattle-Tacoma International Airport in Seattle, Washington, with an intermediate stop planned at San Francisco International Airport in San Francisco, California. The subsequent investigation by the National Transportation Safety Board determined that inadequate maintenance led to excessive wear and catastrophic failure of a critical flight control system during flight. The probable cause was stated to be "a loss of airplane pitch control resulting from the in-flight failure of the horizontal stabilizer trim system jackscrew assembly's acme nut threads. The thread failure was caused by excessive wear resulting from Alaska Airlines's insufficient lubrication of the jackscrew assembly." FS2004 Water, clouds, etc. are REX FS2004 SGA MD-83 Virtual ***pit is from Leonardo Maddog 2008
  • Air Crash Investigation: [S01E05] Cutting Corners (1/6) Alaska Airlines Flight 261, a McDonnell Douglas MD-83 aircraft, experienced a fatal accident on January 31, 2000 in the Pacific Ocean about 2.7 miles (4.3 km) north of Anacapa Island, California. The two pilots, three cabin crewmembers, and 83 passengers on board were killed and the aircraft was destroyed. It was the highest ever death toll of any aviation accident involving a McDonnell Douglas MD-83. Alaska 261 was a scheduled international passenger flight from Lic. Gustavo Díaz Ordaz International Airport in Puerto Vallarta, Mexico, to Seattle-Tacoma International Airport in Seattle, Washington, with an intermediate stop planned at San Francisco International Airport in San Francisco, California. The subsequent investigation by the National Transportation Safety Board determined that inadequate maintenance led to excessive wear and catastrophic failure of a critical flight control system during flight. The probable cause was stated to be "a loss of airplane pitch control resulting from the in-flight failure of the horizontal stabilizer trim system jackscrew assembly's acme nut threads. The thread failure was caused by excessive wear resulting from Alaska Airlines's insufficient lubrication of the jackscrew assembly."
  • JodaHead Music Video by Jackscrew JodaHead music video from the San Francisco neo-arena rock band, Jackscrew. Jackscrew is gt, joe boojer and lorth samuellson. I've got big ears, I've got blonde hair, I've got green skin. I'm really a Yoda mask on top of a Barbi head with Elvis sunglasses. I like Mohitos. My favorite dog is a ***zu. I use the Force.
  • Jack's screw up jack drops t then pushed it under. still it explodes.
  • Air Crash Investigation S01E06 - Cutting Corners part 2 Alaska Airlines Flight 261 is heading for Seattle via San Francisco but its trimmable horizontal stabilizer jams due to an improperly maintained jackscrew assembly. The stabilizer breaks free from its control system and the aircraft dives inverted into the Pacific Ocean, causing the death of all on board.
  • Alaska 261 Jackscrew A description of the fatal flight Alaska 261
  • Air Crash Investigation S01E06 - Cutting Corners part 3 Alaska Airlines Flight 261 is heading for Seattle via San Francisco but its trimmable horizontal stabilizer jams due to an improperly maintained jackscrew assembly. The stabilizer breaks free from its control system and the aircraft dives inverted into the Pacific Ocean, causing the death of all on board.
  • Mitigating Descending Tree Limbs with Braces - Prune Like a Pro Gary Knowlton compares two bracing strategies for mitigating the decent of lateral leaders into the strike zone. He shows the advantages of choosing the jack screw brace method over the crutch method.
  • How to Panel Mount Adapters L-com Connectivity Products Explains How to Panel Mount Adapters - www.L- Step 1 Remove the standard hardware from the adaptor using two hex nut drivers. The hardware is designed to attach to other D-Sub adapters. L-com jackscrew SDG450XS and hex nut SDHS are required to compensate for the added thickness of a panel or enclosure and are sold separately in packages of 50 pieces. Step 2 After removing the hardware from one end of the adapter, simply do the same for the other end. Step 3 Once the hardware has been removed, mount the adapter from the rear of the panel. Step 4 Using the hex nut driver, secure the adapter with the jackscrews applied to the front of the panel. Step 5 Now flip the panel over and thread the hex nuts onto the exposed threads of the jackscrews to secure the adapter to the panel. Note The recommended panel thickness is .062 inches. Dimensions in excess of this thickness can limit proper cable mating due to hex nut protrusion. If your panel exceeds .062 inches, it can be milled down to the recommended panel thickness in the area around the adapter. View more tips and videos at http
  • Cutting Corners Part 3 - Air Crash Investigation/Mayday Alaska Airlines Flight 261 is heading for Seattle via San Francisco but its trimmable horizontal stabilizer jams due to a worn jackscrew assembly. The pilots try to resolve the situation but the stabilizer breaks free from its control system and the aircraft dives inverted into the Pacific Ocean, causing the death of all on board.
  • Chemical Sprayer Plane Crash And Burn Boise Idaho Weather ***s From:Breaking News Boise Idaho May twenty second. view this: Governor Butch Otter go to: www.chemtrails.ch These 1 micron and sub-micron dusts, upon falling through the Atmosphere, could conceivably find deposition onto a somewhat adhesive surface, inside the working flight components of all aircraft traveling through the "grit-plume". The greases used on the Horizontal and Vertical Stabilizers, Ailerons, Flaps and Landing Gear trucks may be seriously damaged with abrasion of metals on the aircraft. A horizontal-stabilizer Jack-Screw continuously coated with these highly abrasive dusts from the Welsbach Refractory materials will cause a gradual milling of the jack-screw metals and cause complete failure, jamming the flight controls into an uncontrollable down or up attitude configuration.Watch this vid: ...plus... weather ***s... emil j kovach jr,wyandotte alarm company,thieves,stolen,coming out,affordable auto glass,ah-64,ranger 206,nsa,cia,din,Glenn S Arendsen. Tel: 734 692 5000 8556 Island Boulevard Grosse Ile MI 4813,Mark Otter boise county sheriff's deputy alleged drug dealer,governor Butch Otter,
  • Air Disasters - Deadly Plunge Alaska Airlines Flight 261, a McDonnell Douglas MD-83 aircraft, went down on January 31, 2000 in the Pacific Ocean about 2.7 miles (4.3 km) north of Anacapa Island, California. The two pilots, three cabin crewmembers, and 83 passengers on board were killed, and the aircraft was destroyed. Alaska 261 departed from PVR at 1:37 pm PST, and climbed to its intended cruising altitude of flight level 310 (31000 ft). Approximately 2 hours into the flight, the flight crew, consisting of captain Ted Thompson and first officer William "Bill" Tansky, first contacted the airline's dispatch and maintenance control facilities in SEA, and on a shared company radio with operations and maintenance facilities at Los Angeles International Airport (LAX) discussed a jammed horizontal stabilizer and a possible diversion to LAX. The jammed stabilizer prevented operation of the trim system, which normally would make slight adjustments to the flight control surfaces to keep the plane stable in flight. At their cruising altitude and speed the position of the jammed stabilizer required the pilots to pull on their controls with approximately 10 pounds (44N) of force to keep level. Neither the flight crew, nor company maintenance, were able to determine the cause of the jam. Repeated attempts to overcome the jam with the primary and alternate trim systems were unsuccessful At 4:09 pm, the flight crew was able to unjam the horizontal stabilizer with the primary trim system, however, upon being freed ...
  • Air Crash Investigation S01E06 - Cutting Corners part 1 Alaska Airlines Flight 261 is heading for Seattle via San Francisco but its trimmable horizontal stabilizer jams due to an improperly maintained jackscrew assembly. The stabilizer breaks free from its control system and the aircraft dives inverted into the Pacific Ocean, causing the death of all on board.
  • Video 4 BAL King Pin Stabilizers Fifth Wheel Stabilizer Jacks from BAL will help you level and stabilize your RV. A tripod stabilizer provides full side to side frame overhang stability and helps maximize front to rear trailer stability. The Deluxe Model (94-1484) has three fully adjustable legs for longer reach on un-level ground. The Standard Model (94-0819) has no extension legs. These units have a simple to operate extendable jack screw for final adjustment. This eliminates trial and error lowering of king pin onto a tripod stabilizing jack to achieve stabilization. The jack screw handles fold down to use and fold up when not in use or for storage. These fifth wheel stabilizers feature: * Set up in seconds * Simple to operate * Heavy duty construction includes heat treated jack post * Lightweight and easy to store * Chrome jacking handle with rubber grip * Large diameter base pads with heavy duty chain and hooks * Patented design from BAL, a leader in RV Leveling We are an authorized dealer for BAL and can supply most of the products made by BAL.
  • Air Crash Investigation: [S01E05] Cutting Corners (2/6) Alaska Airlines Flight 261, a McDonnell Douglas MD-83 aircraft, experienced a fatal accident on January 31, 2000 in the Pacific Ocean about 2.7 miles (4.3 km) north of Anacapa Island, California. The two pilots, three cabin crewmembers, and 83 passengers on board were killed and the aircraft was destroyed. It was the highest ever death toll of any aviation accident involving a McDonnell Douglas MD-83. Alaska 261 was a scheduled international passenger flight from Lic. Gustavo Díaz Ordaz International Airport in Puerto Vallarta, Mexico, to Seattle-Tacoma International Airport in Seattle, Washington, with an intermediate stop planned at San Francisco International Airport in San Francisco, California. The subsequent investigation by the National Transportation Safety Board determined that inadequate maintenance led to excessive wear and catastrophic failure of a critical flight control system during flight. The probable cause was stated to be "a loss of airplane pitch control resulting from the in-flight failure of the horizontal stabilizer trim system jackscrew assembly's acme nut threads. The thread failure was caused by excessive wear resulting from Alaska Airlines's insufficient lubrication of the jackscrew assembly."
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  • FS2004 The Tragedy of Alaska Airlines Flight 261 Please Rate and Comment. "The Pacific Plunge" Note: some of the audio from the ATC tapes does not exactly match up, but its pretty close. I had a hard time matching it correctly with the video. Alaska Airlines Flight 261, a McDonnell Douglas MD-83 aircraft, crashed on January 31, 2000 in the Pacific Ocean about 2.7 miles (4.3 km) north of Anacapa Island, California. The two pilots, three cabin crewmembers, and 83 passengers on board were killed, and the airplane was destroyed. Alaska 261 was a scheduled international passenger flight from Lic. Gustavo Díaz Ordaz International Airport (PVR), Puerto Vallarta, Mexico, to Seattle-Tacoma International Airport (SEA), with an intermediate stop planned at San Francisco International Airport (SFO). The subsequent investigation by the National Transportation Safety Board determined that inadequate maintenance led to excessive wear and catastrophic failure of a critical flight control system during flight. The probable cause was stated to be "a loss of airplane pitch control resulting from the in-flight failure of the horizontal stabilizer trim system jackscrew assemblys acme nut threads. The thread failure was caused by excessive wear resulting from Alaska Airlines insufficient lubrication of the jackscrew assembly. For the rest of the story please visit:
  • Cutting Corners Part 1 - Air Crash Investigation/Mayday Alaska Airlines Flight 261 is heading for Seattle via San Francisco but its trimmable horizontal stabilizer jams due to a worn jackscrew assembly. The pilots try to resolve the situation but the stabilizer breaks free from its control system and the aircraft dives inverted into the Pacific Ocean, causing the death of all on board.
  • "Thorium Poisoning Governor Butch Otter From Joe Derer:"Weasel family is really pissed off.Go to: www.chemtrails.ch These 1 micron and sub-micron dusts, upon falling through the Atmosphere, could conceivably find deposition onto a somewhat adhesive surface, inside the working flight components of all aircraft traveling through the "grit-plume". The greases used on the Horizontal and Vertical Stabilizers, Ailerons, Flaps and Landing Gear trucks may be seriously damaged with abrasion of metals on the aircraft. A horizontal-stabilizer Jack-Screw continuously coated with these highly abrasive dusts from the Welsbach Refractory materials will cause a gradual milling of the jack-screw metals and cause complete failure, jamming the flight controls into an uncontrollable down or up attitude configuration.: emil j kovach jr fag,,weather ***,
  • Alaska Airlines Flight 261 Last Words The aircraft crashed into the Pacific Ocean south of Point Mugu in 650 ft. feet of water while en route from Puerto Vallarta to San Francisco. Radio transmissions from the plane indicated the pilots were struggling with a jammed stabilizer for the last 11 minutes of the flight before nose-diving into the ocean. While preparing to make an emergency landing in Los Angeles International Airport control was lost and the MD-83 was seen in a nose down attitude, spinning and tumbling in a continuous roll, inverted before it impacted the ocean. All 88 aboard were killed. The probable cause was loss of airplane pitch control resulting from in-flight failure of the horizontal stabilizer trim system jackscrew assembly's acme nut threads due to insufficient lubrication of the jackscrew assembly.
  • Air Accident: Uncontrollable Dive "Alaska 261" [HQ] Uncontrollable Dive - Alaska Airlines flight 261 is lost with all hands aboard when cost cutting measures in the maintenance department allowed a jackscrew assembly to fail, causing the pilots to lose control of the plane's horizontal stabilizer. © 2009 FLT111 FILM PRODUCTIONS
  • DIY Electric R/C Airplane Retracts - Modified Robart 630 Air Retracts w/ Dual controlled Actuators! DIY Electric R/C Airplane Retracts - Modified Robart 630 Air Retracts w/ controlling electronics! This is a DIY Conversion of Robart retracts by replacing the air cylinder with an gear-motor driven jack-screw type actuator. The controlling electronics include a DC Motor H-Bridge and a 16F688 PIC is used to drive the two H-bridge controller while also reading the current feedback (proportional voltage) from the H-Bridge. This current measurement is used to determine end positions of both actuators, rather than implementing complicated limit switches. Works amazingly well... I will be fitting my electric-powered CMPro 1/4 scale Japanese Zero (A6M5) with these modified Robart electric actuated retracts!
  • Alaska 261-Pacific Plunge This is a Flight Simulator recreation of the crash of Alaska Airlines Flight 261. An MD83 plunges from 27000 feet towards the Pacific Ocean off the coast of Los Angeles. All 88 people were killed.
  • Air Crash Investigation: [S01E05] Cutting Corners (3/6) Alaska Airlines Flight 261, a McDonnell Douglas MD-83 aircraft, experienced a fatal accident on January 31, 2000 in the Pacific Ocean about 2.7 miles (4.3 km) north of Anacapa Island, California. The two pilots, three cabin crewmembers, and 83 passengers on board were killed and the aircraft was destroyed. It was the highest ever death toll of any aviation accident involving a McDonnell Douglas MD-83. Alaska 261 was a scheduled international passenger flight from Lic. Gustavo Díaz Ordaz International Airport in Puerto Vallarta, Mexico, to Seattle-Tacoma International Airport in Seattle, Washington, with an intermediate stop planned at San Francisco International Airport in San Francisco, California. The subsequent investigation by the National Transportation Safety Board determined that inadequate maintenance led to excessive wear and catastrophic failure of a critical flight control system during flight. The probable cause was stated to be "a loss of airplane pitch control resulting from the in-flight failure of the horizontal stabilizer trim system jackscrew assembly's acme nut threads. The thread failure was caused by excessive wear resulting from Alaska Airlines's insufficient lubrication of the jackscrew assembly."
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  • Air Crash Investigation: [S01E05] Cutting Corners (5/6) Alaska Airlines Flight 261, a McDonnell Douglas MD-83 aircraft, experienced a fatal accident on January 31, 2000 in the Pacific Ocean about 2.7 miles (4.3 km) north of Anacapa Island, California. The two pilots, three cabin crewmembers, and 83 passengers on board were killed and the aircraft was destroyed. It was the highest ever death toll of any aviation accident involving a McDonnell Douglas MD-83. Alaska 261 was a scheduled international passenger flight from Lic. Gustavo Díaz Ordaz International Airport in Puerto Vallarta, Mexico, to Seattle-Tacoma International Airport in Seattle, Washington, with an intermediate stop planned at San Francisco International Airport in San Francisco, California. The subsequent investigation by the National Transportation Safety Board determined that inadequate maintenance led to excessive wear and catastrophic failure of a critical flight control system during flight. The probable cause was stated to be "a loss of airplane pitch control resulting from the in-flight failure of the horizontal stabilizer trim system jackscrew assembly's acme nut threads. The thread failure was caused by excessive wear resulting from Alaska Airlines's insufficient lubrication of the jackscrew assembly."
  • Mayday - S01E06 - Cutting Corners (Fatal Error) On 31 January 2000, Alaska Airlines Flight 261's trimmable horizontal stabilizer jammed and broke free from its control system and the aircraft dove inverted into the Pacific Ocean, causing the death of all on board. The stabilizer failed due to an improperly maintained jackscrew assembly
  • ChainClamps The versatile Single Jackscrew Chain Clamp will accurately align and reform pipes, elbows, flanges, and other pipefittings within its operating range. The Single Jackscrew Chain Clamp is available in steel and stainless steel models for pipe sizes 1 (25mm) to 54 (1372mm). Pipes and fittings can be fully welded without removal of the clamp. One Single Jackscrew Chain Clamp covers the range of eight (8) Cage Clamps.
  • Retractable Roof Panel The 86-ton retractable roof at Starlight Theater consists of six stainless-steel-clad, cantilevered panels, which are 36 feet wide and 42 feet long. The center tips of the panels rotate up to the open position, rising over 24 feet, in sequence, to the sound of the orchestra. When the roof is fully open, the panels form a six-point star through which the audience views the starlit sky. In the case of rain, the sophisticated roof seal system provides complete protection from the weather. Each panel is rotated around a torque tube by a jackscrew drive system. The 50-ton jackscrew, powered by a 5-horsepower electric motor, extends to rotate the panel up to the open position, and retracts to rotate it back down to the closed position. The roof operator uses a personal computer to monitor, control and troubleshoot the roof throughout operation and for maintenance purposes. System redundancies are built into each jackscrew to prevent it from back-driving under the weight of the roof, or from extending beyond its normal travel path. In the unlikely event that the jackscrew fails, two hydraulic cylinders will support the weight of the roof panel, ensuring that they do not fall onto the seating below.
  • Cutting Corners Part 5 - Air Crash Investigation/Mayday Alaska Airlines Flight 261 is heading for Seattle via San Francisco but its trimmable horizontal stabilizer jams due to a worn jackscrew assembly. The pilots try to resolve the situation but the stabilizer breaks free from its control system and the aircraft dives inverted into the Pacific Ocean, causing the death of all on board.
  • Air Crash Investigation: [S01E05] Cutting Corners (4/6) Alaska Airlines Flight 261, a McDonnell Douglas MD-83 aircraft, experienced a fatal accident on January 31, 2000 in the Pacific Ocean about 2.7 miles (4.3 km) north of Anacapa Island, California. The two pilots, three cabin crewmembers, and 83 passengers on board were killed and the aircraft was destroyed. It was the highest ever death toll of any aviation accident involving a McDonnell Douglas MD-83. Alaska 261 was a scheduled international passenger flight from Lic. Gustavo Díaz Ordaz International Airport in Puerto Vallarta, Mexico, to Seattle-Tacoma International Airport in Seattle, Washington, with an intermediate stop planned at San Francisco International Airport in San Francisco, California. The subsequent investigation by the National Transportation Safety Board determined that inadequate maintenance led to excessive wear and catastrophic failure of a critical flight control system during flight. The probable cause was stated to be "a loss of airplane pitch control resulting from the in-flight failure of the horizontal stabilizer trim system jackscrew assembly's acme nut threads. The thread failure was caused by excessive wear resulting from Alaska Airlines's insufficient lubrication of the jackscrew assembly."
  • Cutting Corners Part 4 - Air Crash Investigation/Mayday Alaska Airlines Flight 261 is heading for Seattle via San Francisco but its trimmable horizontal stabilizer jams due to a worn jackscrew assembly. The pilots try to resolve the situation but the stabilizer breaks free from its control system and the aircraft dives inverted into the Pacific Ocean, causing the death of all on board.