ASN Wikibase Occurrence # 297501
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| Date: | Sunday 17 March 2002 |
| Time: | 17:49 LT |
| Type: |  Cessna 152 |
| Owner/operator: | United States Navy |
| Registration: | N25455 |
| MSN: | 15280665 |
| Year of manufacture: | 1977 |
| Engine model: | Continental O-235-L2C |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | NAS Whidbey, Washington -
 United States of America
|
| Phase: | Unknown |
| Nature: | Training |
| Departure airport: | Oak Harbor-Whidbey Island Naval Air Station, WA (KNUW) |
| (KNUM) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
Although the pilot of the Cessna 152, who had been cleared by the tower to taxi into position and hold for takeoff, was aware that the large military turboprop aircraft he had to taxi behind may be doing periodic engine runs, he did not initiate communications that would positively ascertain the power settings of its engines. Just about the time he attempted to taxi past, two of the turboprop's four engines were advanced to a high power setting, and the resultant propwash flipped the 152 on its back. The crew of the turboprop aircraft, who were monitoring ground, were not aware that an aircraft was taxiing behind them after being cleared by the tower to taxi into takeoff position and hold.
Probable Cause: The pilot's improper decision to taxi behind a standing large military turbo-prop aircraft, which he knew may be performing periodic engine test runs, without first initiating communications to insure that the engine power on the standing aircraft would remain at idle as his aircraft taxied passed, thus leading to an inadvertent encounter with high-power propwash.
Accident investigation:
 |
|
Sources:
NTSB SEA02LA055
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 14-Oct-2022 19:20 | ASN Update Bot | Added |
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