Narrative:The aircraft was on a certification test flight to determine the horizontal distance required to land and bring the aircraft to a full stop as required by 14 CFR 25.125 when the accident occurred. The DC-9-80 touched down about 2,298 feet beyond the runway threshold. The descent rate at touchdown exceeded the aircraft's structural limitations; the empennage separated from the aircraft and fell to the runway. The aircraft came to rest about 5,634 feet beyond the landing threshold of runway 22 and was damaged substantially.
Probable Cause:
PROBABLE CAUSE: "The National Transportation Safety Board determines that the probable cause of this accident was the pilot's failure to stabilize the approach as prescribed by the manufacturer's flight test procedures. Contributing to the cause of the accident was the lack of a requirement in the flight test procedures for other flight crewmembers to monitor and call out the critical flight parameters. Also contributing to this accident were the flight test procedures prescribed by the manufacturer for demonstrating the aircraft's landing performance which involved vertical descent rates approaching the
design load limits of the aircraft."
Accident investigation:
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Investigating agency: | NTSB |
Status: | Investigation completed |
Duration: | 1 year and 9 months | Accident number: | NTSB/AAR-82-2 | Download report: | Final report
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Follow-up / safety actions
NTSB issued 2 Safety Recommendations
Issued: 05-MAR-1982 | To: FAA | A-82-24 |
REVISE THE PROCEDURES WHICH ARE CURRENTLY BEING USED TO DEMONSTRATE MINIMUM LANDING DISTANCES FOR COMPLIANCE WITH 14 CFR 25.125 FOR CERTIFICATION OF TRANSPORT CATEGORY AIRPLANES TO (Closed - Unacceptable Action) |
Issued: 05-MAR-1982 | To: FAA | A-82-25 |
UPON ADOPTION OF REVISED PROCEDURES FOR DEMONSTRATING OPERATIONAL LANDING DISTANCES FOR COMPLIANCE WITH 14 CFR 25.125, REVIEW THE OPERATIONAL RUNWAY LENGTH LIMITATIONS IN 14 CFR 121.195 WHICH ARE APPLIED TO CERTIFICATION LANDING DISTANCES SO THAT THEY DO NOT UNJUSTIFIABLY PENALIZE THE OPERATIONAL SPECIFICATIONS OF AIRPLANES. (Closed - Unacceptable Action) |
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This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.