ASN Wikibase Occurrence # 190338
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| Date: | Friday 23 September 2016 |
| Time: | 12:15 |
| Type: |  Aero L-39 Albatros |
| Owner/operator: | Warbirds Llc |
| Registration: | N139AJ |
| MSN: | 330214 |
| Year of manufacture: | 1974 |
| Total airframe hrs: | 3016 hours |
| Engine model: | Ivchenko AL-25SERIES |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Norfolk-Hampton Roads Executive Airport, VA (PVG) -
 United States of America
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | Lynchburg, VA (LYH) |
| Norfolk, VA (PVG) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
According to the private pilot of the jet trainer airplane, the airplane was on final approach for landing about 100 ft above ground level and 60 ft from the runway threshold, when there was an "uncommanded" retraction of the flaps. He adjusted the airplane’s pitch and advanced the throttle in order to compensate for the flap retraction, increasing the airspeed from 90 knots to 130 knots. The airplane touched down on the runway and the pilot applied the brake pedals, followed by the emergency brake. As the airplane began to veer toward the side of the runway, the pilot released the emergency brake and continued to apply brakes using the brake pedals. The airplane continued off the departure end of the runway, struck trees, and came to rest about 1,050 ft from the end of the 5,350ft-long runway. While impact-related damage prevented a functional test of the airplane's normal and emergency flap extension systems, an examination of the flap system components revealed no evidence of any preimpact mechanical malfunctions or failures that would have precluded normal operation. It is likely that the airplane’s increased speed at the time of touchdown resulted in the runway excursion.
Probable Cause: An uncommanded flap retraction for reasons that could not be determined, as a postaccident examination of the flap system did not reveal evidence of any preaccident anomalies.
Accident investigation:
 |
|
Sources:
NTSB
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Sep-2016 07:50 | gerard57 | Added |
| 24-Sep-2016 10:48 | Aerossurance | Updated [Time, Aircraft type, Phase, Nature, Narrative] |
| 03-Dec-2016 19:00 | Anon. | Updated [Damage] |
| 03-Dec-2016 19:01 | harro | Updated [Time, Registration, Cn, Operator, Location, Nature, Destination airport, Source, Damage, Narrative] |
| 07-Feb-2018 13:49 | ASN Update Bot | Updated [Time, Operator, Departure airport, Destination airport, Source, Narrative] |
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