ASN Wikibase Occurrence # 121204
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
If you feel this information is incomplete or incorrect, you can submit corrected information.
| Date: | Saturday 19 March 2011 |
| Time: | 11:15 |
| Type: | Cessna TU206G Turbo Stationair II |
| Owner/operator: | Civil Air Patrol |
| Registration: | N6169Z |
| MSN: | U20606172 |
| Year of manufacture: | 1981 |
| Engine model: | Continental TSIO-520 SER |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Pierce County Airport Thun Field - KPLU -
 United States of America
|
| Phase: | Landing |
| Nature: | Training |
| Departure airport: | Puyallup, WA (PLU) |
| Puyallup, WA (PLU) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The airplane was on the downwind leg of the traffic pattern during an instructional flight, and the pilots performed the prelanding checklist, switched the fuel selector to the right tank position, and activated the fuel boost pump. According to the flight instructor, the airplane “began sinking” while on final approach for the runway. When the pilots tried to add engine power, the engine did not respond, and the airplane collided with terrain short of the runway. The manufacturer’s approved checklist for the airplane indicates that the auxiliary fuel boost pump should be in the off position before landing. A representative from the engine manufacturer reported that operating the auxiliary fuel boost pump at a low engine power setting would “flood” the engine and result in a loss of engine power. It is likely that when the pilots applied power, the engine was flooded, which resulted in the total loss of engine power. Postaccident examination of the airframe and engine revealed no preaccident mechanical malfunctions or failures that would have precluded engine operations.
Probable Cause: The pilots’ activation of the fuel boost pump while preparing to land, which was contrary to checklist procedures and resulted in a loss of engine power.
Accident investigation:
 |
|
Sources:
NTSB
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 20-Mar-2011 07:55 | gerard57 | Added |
| 20-Mar-2011 08:01 | Alpine Flight | Updated [Aircraft type, Registration, Operator, Location, Departure airport, Destination airport, Narrative] |
| 20-Mar-2011 13:05 | RobertMB | Updated [Aircraft type, Registration] |
| 21-Mar-2011 16:43 | RobertMB | Updated [Time, Aircraft type, Registration, Cn, Source, Narrative] |
| 22-Mar-2011 03:02 | RobertMB | Updated [Aircraft type] |
| 21-Dec-2016 19:25 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 27-Nov-2017 16:44 | ASN Update Bot | Updated [Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative] |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation