Event Details


Title:Landed short, Boeing 747, N732PA, Renton Airport, Renton, Washington, December 13, 1969
Micro summary:This Boeing 747 struck an embankment 20' short of the runway at Renton.
Event Time:1969-12-13 at 1111 PST
File Name:1969-12-13-US.pdf
Publishing Agency:National Transportation Safety Board (NTSB)
Publishing Country:USA
Report number:NTSB-AAR-1970-19
Pages:32
Site of event:20 feet short of Renton RWAY 15
Departure:Seattle-Tacoma International Airport, Seattle, Washington, USA
Destination:Renton Municipal Airport, Renton, Washington
Airplane Type(s):Boeing 747-100
Flight Phase:Landing
Registration(s):N732PA
Operator(s):Boeing Company
Type of flight:Ferry
Occupants:11
Fatalities:0
Serious Injuries:0
Minor/Non-Injured:11
Other Injuries:0
Executive Summary:N732PA was being operated on December 13, by the Boeing Company, Seattle, Washington, for the purpose of ferrying the aircraft from Boeing Field, Seattle, Washington, to the Renton Airport. During an approach to a landing at Renton, the aircraft struck an embankment approximately 20 feet short of the threshold of Runway 15. The ground contact point was approximately 30 inches below the top of the bank and the runway level. The aircraft came to a stop on the centerline of Runway 15, approximately 3,500 feet beyond the threshold. The incident occurred at 1111 PST on December 13, 1969. Eleven persons were on board, including the crew. None was injured. Small fires broke out in the No. 3 engine wing strut and the No. 4 engine forward of the tail cone. These were immediately extinguished. Structural damage was confined to the right wing landing gear, right flap assemblies, and the Nos. 3 and 4 engines and their cowlings.

The significant weather reported at 1112 for the Renton Airport was scattered clouds at 4,500 feet and broken clouds at 6,500 feet. The visibility was 13 miles and the wind velocity was 20 knots from 120 true. The Board determines that the probable cause of this incident was the premature touchdown of the aircraft during a visual approach to a relatively short runway, induced by the pilot's not establishing a glidepath which would assure runway threshold passage with an adequate safety margin, under somewhat unusual environmental and psychological conditions.
Learning Keywords:Operations - Controlled Flight Into Terrain
Operations - Runway Underrun
Systems - Engine Fire
Systems - Landing Gear
Consequence - Damage - Airframe or fuselage

 




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