Ntsb releases factual report from alaska accident aeronews. The reconstruction of the accident sequence begins with the alaska airlines flight 261 horizontal stabilizer takeoff setting of 7. It is approximately 2 feet long and was recovered from main wreckage site on february 8, 2000. This image is a work of a national transportation safety board employee, taken or made as part of an employees official duties. It shares facilities in san jose with nbc universal sister station ksts the telemundo station. Alaska public safety helicopter accident ntsb animation youtube. Ordaz airport pvr to san francisco international airport, ca sfo. The horizontal stabilizer has a span of about 40 feet and comprises a. Ntsb hiring to replace 2 alaska crash investigators.
The ntsb has published an exhaustive final report on its investigation into the fatal crash of alaska air 261 on january 31, 2000. A boeing 757 gets lost and crashes just before landing american airlines flight 965 4k duration. Aviation safety network accident investigation cvr fdr. The reconstruction exhibits information selected from the flight data recorder, excerpts from the cockpit voice recorder transcript, recorded radar data and aircraft performance data. It is licensed to san jose, with its transmitter located on san bruno mountain, just south of san francisco. This report explains the accident involving alaska airlines flight 261, a mcdonnell douglas. Background information alaska airlines since its founding in 1932, alaska airlines has demonstrated that it is the type of regional carrier that has the capacity to survive the airline environment of the early twentyfirst century. Ntsb aviation reporting requirements when and what to report other articles april 6, 2006 first we must examine how the aircraft involved are categorized by the ntsb. The ntsb concluded that the failure of the horizontal stabilizer was caused by insufficient maintenance. Welcome to the ntsb maintenance accident report infobase. Two dead in commercial plane crash in southwest alaska. Minutes after takeoff, an air taxi flight veers off course during a 40mile flight from juneau to hoonah, and crashes into a steep mountain.
Nstb horizontal trim system description and sequence failure animation. A simulation of alaska airlines flight 261 a crash caused by cutting corners for profit. A total of 31 accidents were reported by all other on. Alaska public safety helicopter accident ntsb animation airboyd. The horizontal stabilizer is mounted on top of the 18 foot high vertical stabilizer in a t tail configuration. Alaska airlines flight 261 an alaska airlines pilot, involved in the investigation of the horrific crash of alaska flight 261, has listened to the cockpit.
Two victims were falsely named in paternity suits as the fathers of children in guatemala in an attempt to gain insurance and settlement money. Like in the film, the pilots of alaska 261 rolled the airplane to an inverted. Air traffic control transcript of the january 31, 2000 crash of an alaska airlines md83 flight 261 off point mugu, ca usa. Alaska airlines academic dictionaries and encyclopedias. Federal safety investigators have concluded that risky maintenance practices permitted by the federal aviation administration, combined with a design flaw in a key airplane mechanism, led to the fatal crash of alaska airlines flight 261 in january 2000.
Horizontal trim system description and sequence failure. A simulation of alaska airlines flight 261 a crash caused. Alaska public safety helicopter accident ntsb animation. On flight 261, the nut portion of the jackscrew located on the horizont.
They did not make it, the plane suddenly crashed into the pacific ocean, killing all 93 people aboard. This threedimensional animated accident reconstruction shows the final pitchover and initial portion of the dive for alaska airlines flight 261, which crashed off of port hueneme, ca on january 31, 2000. The ntsb s trademark is to carry out and deliver thorough, indepth accident investigations, and the addition of these new investigators to the alaska. After the accident, severely worn and sheared remnants of the acme nut threads were recovered wrapped around the acme screw. Aviation safety network accident investigation cvr. At the time of the flight 261 accident, alaska airlines maintenance program had. Aviation data and documentation from the ntsb accident. A special inspection conducted by the ntsb in april 2000 of alaska airlines uncovered widespread. Nstb horizontal trim system description and sequence failure animation audio transcript. This was an extremely serious situation that would have assuredly killed everyone on board, if the nut had failed while actually airborne. The onscene investigation and wreckage layout reveals the airplane and engine were not to blame. Alaska airlines flight 261 pacific ocean near point mugu, california january 31, 2000 gimbal nut and jackscrew gimbal nut from alaska airlines flight 261, shown below as attached to front spar of stablizer from the aircrafts tail, and in closeup. Alaska airlines penerbangan 261 merupakan sebuah penerbangan terjadwal dari bandar udara internasional san francisco menuju bandar udara internasional seattletacoma. Alaska aircrash investigations smithsonian channel.
The cockpit area microphone picked up a sound like that of the slatflap handle moving, followed a few seconds later by an extremely loud noise. A mcdonnell douglas dc983 md83 passenger plane, registered n963as, was destroyed in an accident 4,5 km n off anacapa island, ca, united states of america. Asn aircraft accident mcdonnell douglas dc983 md83. Ntsb alaska region chief clint johnson said the two investigators who arrived on scene monday are having a hard time recovering the remains. Two of alaska s four dedicated national transportation safety board investigators are leaving the state. Animations june 3, 2003 highway accident report ford explorer sport collision with ford windstar and jeep grand cherokee on interstate 95495 near largo, maryland, on february 1, 2002.
The flight 261 disaster aggravates questions that have been directed at alaska airlines. Passengers apparently saw danger before pilot crashlanded in. Animation of alaska airlines flight 261 plane crash youtube. Were the pilots of alaska airlines flight 261 really hopeless. Sep 17, 2014 ntsb releases documents from alaska plane crash. Loss of control and impact with pacific ocean, alaska airlines flight 261, mcdonnell douglas md83, n963as, about 2.
The national transportation safety board has been searching for the reasons alaska airlines flight 261 crashed into the pacific ocean on jan. The national transportation safety board determines that the probable cause of this accident was the inflight fatigue fracture and separation of a propeller blade resulting in distortion of the left engine nacelle, causing excessive drag, loss of wing lift, and reduced directional control of the airplane. Follow ntsb investigators as they attempt to determine the probable cause of each crash, be it man, machine, or environment. Nov 11, 2007 this part of the ntsb site includes computergenerated animations of accidents associated with several airliner events with passenger fatalities including the following. Basically, alaska would tell the faa poi in seattle principle. Alaska airlines flight 261 was a scheduled international passenger flight from licenciado. May 04, 2017 ntsb releases factual report from alaska accident.
Of those accidents, 26 were reported by part 121 airlines and six were reported by part 5 commuters. Probably, he was referring to the force needed to hold the nose up. Alaska airlines flight 261 plunged into the pacific ocean during a routine flight from puerto vallarta, mexico to seattletacoma airport. The cause of the accident was the loss of the airplane pitch control caused by thread failure on the jackscrew assembly controlling the horizontal stabilizer trim. Ntsb removes alaska air employee from crash inquiry. Alk is an airline based in the seattle suburb of seatac, washington in the united states.
Ogg multiplexed audiovideo file, theoravorbis, length 33 s, 720. The national transportation safety board ntsb is an independent agency charged. Loss of control and impact with pacific ocean alaska. Animation frame showing collision of amtrak passenger train and. It is the subject of a federal investigation into alleged falsification of maintenance records in its oakland, calif. Alaska airlines flight 261 mayday tv show wiki fandom. In other words the crash of alaska airlines flight 261 could have been avoided. There were 83 passengers and five crew members on board.
Loss of control and impact with pacific ocean alaska airlines. Ntsb alaska welcomes new investigators anchorage daily news. A similar failure caused the 12000 crash of alaska 261, an md83 that lost flight control near santa barbara and plunged into the pacific, killing all 88 on board. A simulation of alaska airlines flight 261 a crash.
Alaska airlines flight 261 was a scheduled international passenger flight from licenciado gustavo diaz ordaz international airport in puerto vallarta, jalisco, mexico, to seattletacoma international airport in seattle, washington, united states, with an intermediate stop at san francisco international airport in san francisco, california. Kntv, channel 11, is the nbc ownedandoperated television station in the bay area market. No permission to reproduce or transmit them is implied or granted. Alaska and other states to develop and implement a flight risk evaluation program. Alaska airlines flight 261 aircraft accident report. The photo below shows the jackscrew from the horizontal stabilizer of alaska airlines flight 261. This ntsb animation demonostrates normal functions of the horizontal trim system and sequence of failure for alaska airlines flight 261. The failure to grease a single jackscrew on the tail of alaska airlines flight 261 caused the jetliner to plunge into the pacific ocean on jan. Alaska air maintenence offices in oakland in an investigation related to the accident, as well as in the ntsb final report they talk about how alaska was able to get waivers from the faa to only lubricate the jackscrew after long intervals. Alaska airlines flight 261 departed puerto vallarta at about 14. This dataset is intended for public access and use. Subsequent airplane nose down stabilizer trim motion from 7. Jackscrew from horizontal stabilizer of alaska airlines flight 261.
Jan 17, 2003 the ntsb has published an exhaustive final report on its investigation into the fatal crash of alaska air 261 on january 31, 2000. If this work was prepared by an officer or employee of the united states government as part of that persons official duties it is considered a u. The end of the animation transitions to an overhead photograph of the. The flight crewmembers on alaska airlines flight 261 were properly certificated. Whether it is the difficult weather in alaska and the northwestern united states, a. The national transportation safety board has not determined what caused an airplane crash that killed two greenville families in alaska last year. In this activity you will investigate incidents and accidents relating to a specific aircraft make. Sep 28, 2016 two of alaska s four dedicated national transportation safety board investigators are leaving the state. Information from its description page there is shown below. Jul 18, 2018 washington a report released wednesday by the national transportation safety board ntsb tells of the harrowing moments before a sightseeing plane crashed in alaska last week.
Ntsb staff faults design, maintenance in alaska crash. Ntsb chairman jim hall talks about radar images of the plane. May 27, 2007 this threedimensional animated accident reconstruction shows the final pitchover and initial portion of the dive for alaska airlines flight 261, which crashed off of point hueneme, ca on january. During the ntsb animation of the accident, the aircraft is identified as a jr88, similar.
Alaska airlines flight 261 was a scheduled international passenger flight from licenciado gustavo diaz ordaz international airport in puerto vallarta, jalisco, mexico, to seattletacoma international airport in seattle, washington, united states, with an intermediate stop at san francisco international airport in san francisco, california xii on january 31, 2000, the aircraft operating. The airplane operated on a flight from puerto vallartagustavo d. These are the sources and citations used to research case study of air crash investigation. Kecelakaan ini menewaskan seluruh penumpangnya yang berjumlah 88. This bibliography was generated on cite this for me on tuesday, january 20, 2015. Bob orr new details about the last moments of alaska airlines flight 261 examined. Alaska airlines flight 261, a md83 aircraft, experienced a fatal accident on january 31. Alaska airlines flight 261 crash animation xplane 11.
The horizontal stabilizer on top of tail is hinged and moves up and down via a jack screw. The national transportation safety board issued a chilling finding tuesday. Sep 28, 2016 with the addition of two new investigators to the alaska office of the national transportation safety board including the offices firstever female investigator the agency is at its full. Site map lessons learned federal aviation administration. Jackscrew failure causes alaska airlines flight 261 crash into pacific ocean.
An alaska airlines spokesman said the carrier would retire the flight number 261 out of respect for the dead. The ntsb report on artifact 22v1 this document is provided on this web site as a matter of general interest and to aid in research by individuals. This threedimensional animated accident reconstruction shows the final pitchover and initial portion of the dive for alaska airlines flight 261, which crashed off of point hueneme, ca on january. Roughly 100 aircraft accidents occurred in alaska in 2015 and challenged one of the busiest and most unique offices of the national transportation safety board. Sep 18, 2014 ntsb still probing cause of 20 alaska plane crash. Ntsb simulator training animation american airlines b727 flight 625 at st. Ntsb aviation reporting requirements when and what to report. After many mergers with and acquisitions of other airlines, including star air service, it became known as alaska airlines in 1944. See ntsb horizontal trim system description and sequence failure animation.
86 1154 905 619 698 323 639 957 1336 948 130 759 219 653 1487 156 1164 410 1479 1497 681 1191 1454 1178 875 694 821 934 229 129 1068 541 1206 812 1352 207 114 481