ASN Wikibase Occurrence # 355263
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| Date: | Saturday 13 September 1997 |
| Time: | 13:00 LT |
| Type: |  Piper PA-18-150 |
| Owner/operator: | Alaska Dept Public Safety |
| Registration: | N7054 |
| MSN: | 18-8915 |
| Year of manufacture: | 1971 |
| Total airframe hrs: | 7635 hours |
| Engine model: | Lycoming O-320-B2B |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Saint Mary's, AK -
 United States of America
|
| Phase: | Landing |
| Nature: | Unknown |
| Departure airport: | Bethel, AK (BET) |
| (KBET) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The 29-inch tundra tire equipped airplane was being landed on a wet, sandy, gravel bar. The pilot stated that the back seat heater had been blowing hot air on the brake master cylinders, which had just been serviced. At touchdown, the airplane began to nose over. The pilot attempted to add power and keep the tail down with airflow, but the airplane continued over onto its back. Skid marks were measured for 154 feet from the touchdown point.
Probable Cause: The excessive pressure in the brake system resulting from heating of the recently serviced hydraulic fluid in the brake master cylinders, and the resultant locked brakes and inability to maintain directional control of the airplane.
Accident investigation:
 |
|
Sources:
NTSB ANC97TA148
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 12-Mar-2024 10:02 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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