ASN Wikibase Occurrence # 286326
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: | Friday 1 February 2008 |
| Time: | 08:30 LT |
| Type: |  Cessna 152 |
| Owner/operator: | West Valley Flying Club |
| Registration: | N49811 |
| MSN: | 15281332 |
| Year of manufacture: | 1978 |
| Total airframe hrs: | 6730 hours |
| Engine model: | Lycoming O-235-L2C |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Palo Alto, California -
 United States of America
|
| Phase: | Standing |
| Nature: | Ferry/positioning |
| Departure airport: | Palo Alto Airport, CA (PAO/KPAO) |
| San Carlos Airport, CA (SQL/KSQL) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
Prior to the accident flight, a maintenance inspection was performed. A piece of the baffling was found in the throat of the carburetor venturi. The carburetor was inspected and reinstalled on the airplane. On the accident flight, the pilot/mechanic performed a post maintenance run-up with no mechanical problems noted. She taxied the airplane to the runway for takeoff and performed another run-up. Again there were no mechanical problems noted, and all the gages showed normal indications. On the takeoff roll the engine developed 2,300 rpm's. About 500 feet mean sea level (msl), she noticed a hesitation in the engine and decided to make a 180-degree turn back to the runway. The airplane was still high on the approach, so the pilot reduced the airspeed, performed S-turns, and then slipped the airplane to lose altitude. She was still high, and about halfway down the runway, she further reduced the airspeed, which increased the sink rate. She lowered the nose to slow the sink rate, and was in the process of raising the nose again to flare for landing when the nose struck the runway. An inspection of the engine revealed zero compression of the number 1 cylinder with blow-by past the piston rings and exhaust valve. Maintenance personnel also noted that the bottom number 1 cylinder spark plug was "excessively" fouled with carbon deposits. There were no problems noted with the carburetor.
Probable Cause: Loss of engine power during the takeoff initial climb due to lack of compression to a cylinder.
Accident investigation:
 |
|
Sources:
NTSB LAX08LA055
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 03-Oct-2022 09:01 | ASN Update Bot | Added |
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