Accident Boeing 707-321C N799PA,
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Date:Thursday 26 December 1968
Type:Silhouette image of generic B703 model; specific model in this crash may look slightly different    
Boeing 707-321C
Owner/operator:Pan American World Airways (Pan Am)
Registration: N799PA
MSN: 18824/397
Year of manufacture:1964
Engine model:Pratt & Whitney JT3D-3B
Fatalities:Fatalities: 3 / Occupants: 3
Aircraft damage: Destroyed, written off
Location:Anchorage-Elmendorf AFB, AK (EDF) -   United States of America
Phase: Initial climb
Departure airport:Anchorage-Elmendorf AFB, AK (EDF/PAED)
Destination airport:Tokyo (unknown airport)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
The Boeing, named "Clipper Racer", had departed San Francisco on cargo/mail flight to Cam Ranh Bay, Vietnam via Anchorage, Tokyo, and Da Nang.
Because of below minima weather at Anchorage International Airport, the aircraft landed at Elmendorf AFB. Several delays were experienced before the flight taxied out at 06:02. Flight 799 was given a void time of 06:15 by Oceanic Control to avoid traffic conflict. If the crew failed to make that time, it would result in a 45 min delay. When the checklist item "wing flaps" was called, the 'follow me' truck arrived to guide them to runway 23. From then on the crew were busy steering the plane on the slippery taxiways and talking to Oceanic Control resp. The aircraft was cleared for takeoff at 06:14. The stickshaker sounded shortly after VR (154 kts). The aircraft rotated climbed slowly. The right wing contacted the snow covered ground 94 feet left of the extended centerline at a distance of 2760 feet from the runway. The aircraft rolled inverted and broke up.

PROBABLE CAUSE: "An attempted takeoff with the flaps in a retracted position. This resulted from a combination of factors: a) inadequate cockpit checklist and procedures; b) a warning system inadequacy associated with cold weather operations; c) ineffective control practices regarding manufacturer's Service Bulletins; and d) stresses imposed upon the crew by their attempts to meet an air traffic control deadline."

Accident investigation:
Investigating agency: NTSB
Report number: DCA69A0008
Status: Investigation completed
Duration: 1 year
Download report: Final report



Revision history:


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