Eastern Air Lines Flight 401

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Eastern Air Lines Flight 401
Eastern Air Lines Lockheed L-1011 Tristar 1 Proctor-1.jpg
N310EA, the aircraft involved in the accident, photographed in St. Louis just weeks before the crash
Accident summary
Date December 29, 1972
Summary Pilot error and CFIT
Site Florida Everglades
Miami-Dade County, Florida
United States
Passengers 163
Crew 13
Injuries (non-fatal) 75
Fatalities 101
Survivors 75
Aircraft type Lockheed L-1011-385-1 TriStar
Operator Eastern Air Lines
Registration N310EA
Flight origin John F. Kennedy Int'l Airport
Destination Miami International Airport

Eastern Air Lines Flight 401 was a Lockheed L-1011-1 Tristar jet that crashed into the Florida Everglades at 11:42 pm December 29, 1972, causing 101 fatalities (99 initial crash fatalities, two died shortly afterward). The Captain, along with one of 2 flight crew members, two of 10 flight attendants and 97 of 163 passengers, died. There were 75 survivors. The crash occurred as a result of the entire flight crew becoming preoccupied with a burnt-out landing gear indicator light, and failing to notice the autopilot had inadvertently been disconnected. As a result, while the flight crew was distracted with the indicator problem, the aircraft gradually lost altitude and crashed. It was the first crash of a wide-body aircraft and at the time, the second-deadliest single-aircraft disaster in the United States.[1][2]

The crash

The aircraft flightpath summary, as shown in the NTSB report

Eastern Air Lines Flight 401, operating a four-month-old Lockheed L-1011-1 TriStar[3][4] (registration N310EA,[5]the tenth example delivered to the carrier)[6] carrying 163 passengers and 13 crew members,[3] left New York's JFK Airport on Friday, December 29, 1972 at 9:20 p.m., en route to Miami International Airport.[7] The aircraft was number 310 in Eastern's fleet, delivered to the airline on August 18 that year. The flight was under the command of Captain Robert Albin 'Bob' Loft, 55, a veteran Eastern Air Lines pilot ranked 50th in seniority at Eastern. Captain Loft had been with the airline for 32 years and had accumulated a total of 29,700 flight hours throughout his flying career. He had logged 280 hours in the L-1011. His flight crew included First Officer Albert John Stockstill, 39, who had 5,800 hours of flying experience, and Second Officer (flight engineer) Donald Louis 'Don' Repo, 51, who had 15,700 hours of flying experience.[8] A company employee—technical officer, Angelo Donadeo, 47, returning to Miami from an assignment in New York—accompanied the flight crew for the journey.[9] The ten woman flight attendant crew on Flight 401 included: Mercedes Ruiz, Sue Tebbs, Adrienne Hamilton (lead flight attendant), Trudy Smith, Dorothy Warnock, Patricia Ghyssels, Beverly Jean Raposa, Patricia 'Patty' Georgia, Stephanie Stanich, and Sharon Transue. Pat Ghyssels (seated on jumpseat 3L) and Stephanie Stanich (seated on jumpseat 4L) died in the crash.[citation needed]

The flight was routine until 11:32 p.m., when the flight began its approach into Miami International Airport. After lowering the gear, first officer Stockstill noticed that the landing gear indicator, a green light identifying that the nose gear is properly locked in the "down" position, did not illuminate.[7] This was discovered to be due to a burned-out light bulb.[10] The landing gear could have been manually lowered either way.[11] The pilots cycled the landing gear but still failed to get the confirmation light.[7]

Loft, who was working the radio during this leg of the flight, told the tower that they would discontinue their approach to their airport and requested to enter a holding pattern. The approach controller cleared the flight to climb to 2,000 feet (610 m), and then hold west over the Everglades.[7]

The cockpit crew removed the light assembly,[12] and second officer Repo was dispatched to the avionics bay beneath the flight deck to confirm via a small porthole if the landing gear was indeed down.[13] Fifty seconds after reaching their assigned altitude, captain Loft instructed first officer Stockstill to put the L-1011 on autopilot.[13] For the next eighty seconds, the plane maintained level flight. Then, it dropped 100 feet (30 m), and then again flew level for two more minutes, after which it began a descent so gradual it could not be perceived by the crew.[13] In the next seventy seconds, the plane lost only 250 feet (76 m), but this was enough to trigger the altitude warning C-chord chime located under the engineer's workstation.[13] The engineer (second officer Repo) had gone below, and there was no indication by the pilot's voices recorded on the CVR that they heard the chime. In another fifty seconds, the plane was at half its assigned altitude.[14]

As Stockstill started another turn, onto 180 degrees, he noticed the discrepancy. The following conversation was recovered from the flight voice recorder later:

Stockstill: We did something to the altitude.
Loft: What?
Stockstill: We're still at 2,000 feet, right?
Loft: Hey—what's happening here?[14]

Less than 10 seconds after this exchange, the jetliner crashed at Lua error in package.lua at line 80: module 'strict' not found.. The location was west-northwest of Miami, 18.7 miles (30.1 km) from the end of runway Nine Left (9L).[14] The plane was traveling at 227 miles per hour (365 km/h) when it flew into the ground.[citation needed] With the aircraft in mid-turn, the left wingtip hit the surface first, then the left engine and the left landing gear,[15] making three trails through the sawgrass, each five feet wide and more than 100 feet (30 m) long. When the main part of the fuselage hit the ground, it continued to move through the grass and water, breaking up as it went.[16]

Rescue and aftermath

Robert "Bud" Marquis, an airboat pilot, was out frog gigging with Ray Dickinsin when they witnessed the crash. They rushed to rescue survivors. Marquis received burns to his face, arms and legs—a result of spilled jet fuel from the crashed TriStar—but continued shuttling people in and out of the crash site that night and the next day. For his efforts, he received the Humanitarian Award from the National Air Disaster Alliance/Foundation and the "Alumitec – Airboat Hero Award", from the American Airboat Search and Rescue Association.

In all, 77 survived the ordeal—69 of the 163 passengers and 8 of the 10 flight attendants survived the crash, with 99 initial fatalities.[17] Despite their own injuries the surviving flight attendants were credited for helping other survivors and several quick thinking actions such as warning survivors of the danger of striking matches due to jet fuel in the swamp water [1] and singing christmas carols in order to keep up hope and draw attention to the rescue teams as flashlights were not part of the standard equipment on commercial airliners at the time. Of the cockpit crew, only flight engineer Repo survived the initial crash, along with technical officer Donadeo who was down in the nose electronics bay with Repo at the moment of impact.[18] Stockstill was killed on impact, while Captain Loft died in the wreckage of the flightdeck before he could be transported to a hospital. Repo was evacuated to a hospital, but later succumbed to his injuries.[19] Donadeo, the lone survivor of the four flightdeck occupants, recovered from his injuries.[citation needed]

Most of the dead were passengers in the aircraft's midsection.[20] The swamp absorbed much of the energy of the crash, lessening the impact on the aircraft. The mud of the Everglades may have blocked wounds sustained by survivors, preventing them from bleeding to death. However, it also complicated the survivors' recuperation, as organisms in the swamp caused infection, with the potential for gas gangrene. Eight passengers became infected; doctors used hyperbaric chambers to treat the infections.[1] All the survivors were injured; 60 received serious injuries and 17 suffered minor injuries that did not require hospitalization.[19] The most common injuries were: fractures of ribs, spines, pelvises, and lower extremities. Fourteen survivors had various degrees of burns.[21]

Cause of the crash

The NTSB investigation discovered that the autopilot had been inadvertently switched from altitude hold to CWS (Control Wheel Steering) mode in pitch.[22] In this mode, once the pilot releases pressure on the yoke (control column) the autopilot will maintain the pitch attitude selected by the pilot until he moves the yoke again. Investigators believe the autopilot switched modes when the captain accidentally leaned against the yoke while turning to speak to the flight engineer, who was sitting behind and to the right of him. The slight forward pressure on the stick would have caused the aircraft to enter a slow descent, maintained by the CWS system.[23]

Investigation into the aircraft's autopilot showed that the force required to switch to CWS mode was different between the A and B channels (15 vs. 20 lb or 6.8 vs. 9.1 kg respectively). Thus it was possible that the switching to CWS in channel A did not occur in channel B thus depriving the first officer of any indication the mode had changed (Channel A provides the captain's instruments with data, while channel B provides the first officer's).[24]

After descending 250 feet (76 m) from the selected altitude of 2,000 feet (610 m) a C-chord sounded from the rear speaker.[13] This altitude alert, designed to warn the pilots of an inadvertent deviation from the selected altitude, went unnoticed[22] by the fatigued and frustrated crew. Investigators believe this was due to the crew being distracted by the nose gear light, and because the flight engineer was not in his seat when it sounded and so would not have been able to hear it.[23] Visually, since it was nighttime and the aircraft was flying over the darkened terrain of the Everglades, there were no ground lights or other visual indications that the TriStar was slowly descending.

It was also discovered that Captain Loft had an undetected tumor in his brain,[25] and this was later found to be in an area controlling vision,[1][26] but this was not thought to have contributed to the accident.[27][28]

The final NTSB report cited the cause of the crash as pilot error, specifically: "the failure of the flight crew to monitor the flight instruments during the final four minutes of flight, and to detect an unexpected descent soon enough to prevent impact with the ground. Preoccupation with a malfunction of the nose landing gear position indicating system distracted the crew's attention from the instruments and allowed the descent to go unnoticed."[29]

In response to the accident, many airlines started crew resource management training for their pilots. The training is designed to make problem solving in a cockpit much more efficient, thus causing less distraction for the crew. Flashlights are now standard equipment near jumpseats and all jumpseats are outfitted with shoulder harnesses.[30]

In popular culture

The story of the crash and its aftermath was documented first in John G. Fuller's 1976 book The Ghost of Flight 401, which argued that paranormal events were caused by the salvaged wreckage of the aircraft.[31] Eastern Air Lines CEO (and former Apollo astronaut) Frank Borman called the ghost stories surrounding the crash "garbage".[32] Eastern considered suing for libel, based on assertions of a cover-up by Eastern executives, but Borman opted not to, feeling a lawsuit would merely provide more publicity for the book.[33] Loft's widow and children did sue Fuller, for infringement of Loft's right of publicity, for invasion of privacy, and for intentional infliction of emotional distress; but the lawsuit was dismissed and the dismissal upheld by the Florida Fourth District Court of Appeal.[34]

The crash was also documented in Rob and Sarah Elder's 1977 book Crash.

Two made-for-television movies based on the crash were aired in 1978: Crash of Flight 401, aired in October, was based on the Elders' book, and dramatized the crash, rescue efforts and NTSB investigation; while The Ghost of Flight 401, aired earlier in February, was based on Fuller's book and focuses more on the ghost sightings surrounding the aftermath.

Musician Bob Welch recorded a song on his 1979 album Three Hearts titled "The Ghost of Flight 401".

The crash also appeared in a Season 5 episode of Mayday (also known as Air Crash Investigation). The episode was titled "Who's at the Controls?" (In some countries, the title "Fatal Distraction" was used.)

In addition, the Smithsonian Channel's Air Disasters recounted the events of this crash in Episode 9 of Season 1 (titled "Fatal Distraction") [35][36]

See also

References

  • NTSB report: Lua error in package.lua at line 80: module 'strict' not found.
  • Lua error in package.lua at line 80: module 'strict' not found.
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Footnotes

  1. ↑ 1.0 1.1 1.2 1.3 "Who's at the Controls?" ("Fatal Distraction") Mayday
  2. ↑ Accident description at the Aviation Safety Network. Retrieved on 2012-06-09.
  3. ↑ 3.0 3.1 NTSB report, page 1 (PDF page 9 of 52)
  4. ↑ NTSB report, appendix C (pages 30-31, PDF pages 38-39 of 52)
  5. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  6. ↑ Job, Macaurthur. Air Disaster - Volume 1, p. 99
  7. ↑ 7.0 7.1 7.2 7.3 NTSB report, page 3 (PDF page 11 of 52)
  8. ↑ NTSB report, appendix B (pages 27-29, PDF pages 35-37 of 52)
  9. ↑ Job, Macaurthur. Air Disaster - Volume 1, p. 98. Note: Donadeo was not a member of the flight crew, his official status was as a "non-revenue passenger"
  10. ↑ NTSB report, page 9 (PDF page 17 of 52)
  11. ↑ Job, Macaurthur. Air Disaster - Volume 1, p. 101
  12. ↑ Job, Macaurthur. Air Disaster - Volume 1, p. 102
  13. ↑ 13.0 13.1 13.2 13.3 13.4 NTSB report, page 4 (PDF page 12 of 52)
  14. ↑ 14.0 14.1 14.2 NTSB report, page 5 (PDF page 13 of 52)
  15. ↑ NTSB report, page 8 (PDF page 16 of 52)
  16. ↑ Job, Macaurthur. Air Disaster - Volume 1, p. 109,107. Paraphrased excerpt on Flight 401's crash sequence: "The TriStar's port outer wing structure had struck the ground first, followed by the No. 1 engine and the port main undercarriage. The disintegration of the aircraft that followed scattered wreckage over an area 1,600 feet (500 m) long and 330 feet (100 m) wide in a southwesterly direction. Only small fragments of metal marked the wingtip's first contact, followed 49 feet (15 m) further on by three massive 115 feet (35 m) swaths cut through the mud and sawgrass by the aircraft's extended undercarriage before two of the legs were sheared off. Then came scattered parts from the No. 1 (port) engine, and fragments from the port wing itself and the port tailplane. 490 feet (150 m) from the wingtips initial contact with the ground, the massive fuselage had begun to breakup, scattering components from the underfloor galley, the cargo compartments, and the cabin interior. At 820 feet (250 m) along the wreckage trail, the outer section of the starboard wing tore off, gouging an 59-foot-long (18 m) crater in the soft ground as it did so. From this point on, the breakup of the fuselage became more extensive, scattering metal fragments, cabin fittings, and passenger seats widely. The three major sections of the fuselage—the most intact of which was the tail assembly—lay in the mud towards the end of the wreckage trail ... The fact that the tail assembly—rear fuselage, No. 2 tail-mounted engine, and remains of the empennage—finally came to rest substantially further forward than other major sections, was probably the result of the No. 2 engine continuing to deliver thrust during the actual breakup of the aircraft ... No complete cross section of the passenger cabin remained, and both the port wing and tailplane were demolished to fragments ... Incongruously, not far from the roofless fuselage center section with the inner portion of the starboard wing still attached, lay a large, undamaged and fully inflated rubber dingy, one of a number carried on the TriStar in the event of an emergency water landing. The breakup of the fuselage had freed it from its stowage and activated its inflation mechanism."
  17. ↑ Accident description at the Aviation Safety Network
  18. ↑ Job, Macaurthur. Air Disaster - Volume 1, p. 102,108
  19. ↑ 19.0 19.1 Job, Macaurthur. Air Disaster - Volume 1, p. 108
  20. ↑ Yanez, Luisa. 'PART TWO: THE CRASH "It felt like a wild rollercoaster ride..."' The Miami Herald. Retrieved on December 30, 2012.
  21. ↑ NTSB report, page 6 (PDF page 14 of 52) Note: the NTSB classified the injuries of one non-revenue passenger and one other passenger as non-fatal as their deaths occurred more than seven days after the accident. The death toll per the final accident report was 99.
  22. ↑ 22.0 22.1 NTSB report, page 23 (PDF page 31 of 52)
  23. ↑ 23.0 23.1 Job, Macaurthur. Air Disaster - Volume 1, p. 110
  24. ↑ NTSB report, page 13 (PDF page 21 of 52)
  25. ↑ NTSB report, page 6 (PDF page 14 of 52)
  26. ↑ NTSB report, page 16 (PDF page 24 of 52)
  27. ↑ NTSB report, page 22 (PDF page 30 of 52)
  28. ↑ Job, Macaurthur. Air Disaster - Volume 1, p. 109
  29. ↑ NTSB report, pages 23-24 (PDF pages 31-32 of 52)
  30. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  31. ↑ Goodreads.com: The Ghost of Flight 401
  32. ↑ Serling, p. 490
  33. ↑ Serling, p. 491
  34. ↑ Loft v. Fuller, 408 So. 2nd 619 (Fla. App. Dec. 16, 1981).
  35. ↑ http://www.smithsonianchannel.com/sc/web/series/802/air-disasters/138925/fatal-distraction
  36. ↑ http://www.tv.com/shows/air-disasters/fatal-distraction-2375501/

External links

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