Pan Am Flight 806

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Pan American Flight 806
Boeing 707-321B Pan Am Freer.jpg
A Pan Am B707-321B in flight
Accident summary
Date January 30, 1974
Summary Microburst-induced wind shear
Site 0.8 mi (1.3 km) from Pago Pago International Airport, American Samoa
14°20′55″S 170°43′55″W / 14.34861°S 170.73194°W / -14.34861; -170.73194
PAN AM FLIGHT 806 Latitude and Longitude:

14°20′55″S 170°43′55″W / 14.34861°S 170.73194°W / -14.34861; -170.73194
Passengers 91
Crew 10
Fatalities 97
Injuries (non-fatal) 4
Survivors 4
Aircraft type Boeing 707-321B
Aircraft name Clipper Radiant
Operator Pan American World Airways
Registration N454PA
Flight origin Auckland International Airport
1st stopover Pago Pago International Airport
2nd stopover Honolulu International Airport
Destination Los Angeles International Airport

Pan Am Flight 806 was an international scheduled flight from Auckland, New Zealand, to Los Angeles, California, with intermediate stops at Pago Pago, American Samoa and Honolulu, Hawaii. On January 30, 1974, the Boeing 707 Clipper Radiant crashed on approach to Pago Pago International Airport, killing 87 passengers and ten crew members.

The National Transportation Safety Board (NTSB) determined the probable cause of the accident was the flight crew's tardy identification of microburst-induced wind shear. Other factors included poor visibility and a lack of altitude and airspeed callouts by the aircrew.

Aircraft and flight crew

The aircraft involved was a Boeing 707-321B powered by Pratt & Whitney JT3D-3B engines. Registered N454PA with manufacturer's serial number 19376/661, it had accumulated 21,625 airframe hours since its first flight in 1967. It was piloted by Captain Leroy Peterson, 52, who had 17,414 hours of pilot time of which 7,416 hours were in the 707. The copilot was First Officer Richard Gaines, 37, with 5,107 total piloting hours all in the 707. The Third officer was James Phillips, 43, and the flight engineer was Gerry Green, 37. The six cabin crew were Stewardess Yvonne Cotte, 23, Purser Elizabeth Givens, 30, Stewardess Gloria Olson, 25, Stewardess Patricia Reilly, 25, Purser Gerda Rupp, 34, and Stewardess Kinuko Seko, 28. [1] [2]

Accident

At 20:14 Flight 806 departed Auckland with 91 passengers and 10 crewmembers on board with an instrument flight rules (IFR) flight plan to Pago Pago. [1]

At 23:34 the flight had descended to 5,500 feet and captured the 226 degree radial of the Pago Pago VHF omnidirectional range (VOR) and were flying the reciprocal heading of 46 degrees. Pago Pago Approach Control reported winds zero one zero degrees at one five gusting two zero. [1]

The flight was receiving signals from the Localizer and was using the Instrument landing system (ILS) for runway 5. At 23:38 the approach controller informed the flight of a bad rain shower at the airport, then at 23:39 stated the wind is zero three zero degrees at two zero, gusting two five. The flight transmitted ""Eight zero six, wilco" at 23:39:41. This was the last communication received from Flight 806. [1]

The Cockpit voice recorder (CVR) recorded normal cockpit conversation during the last minute of the flight. At 23:40:22 the co-pilot reported "You're a little high" and at 23:40:33 "You're at minimums." At 23:40:35 the first officer stated "Field in sight" then "Turn to your right" followed by "hundred and forty knots." No further conversation was recorded by the CVR. [1]

At 23:40:42 the 707 came in contact with trees 3,865 feet short of the runway 5 threshold. The aircraft first impacted the ground 236 feet further and plowed through dense vegetation for another 539 feet before crashing into a three foot high rock wall. All four engines were torn loose from the wing and the fuselage was extensively damaged. A post impact fire consumed most of the aircraft. [1]

Aftermath

The crew of 10 and 87 passengers ultimately died. Notably, all the passengers and crew survived the initial impact. Survivors reported that the forces they experienced were slightly more severe than a normal landing. After examination the cabin interior was found to be undamaged by the crash. [1]

Nine passengers and one crew member, Third Officer Phillips, survived the initial crash and post-accident fire. One passenger died the day after the accident. Three days after the accident, the remaining crew member and three passengers died. One passenger died nine days after the accident. [1]

Investigation

The NTSB's final report dated October 6, 1977 determined that the probable cause of the accident was: [1]


PAN AM FLIGHT 806 INFORMATION

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