ASN Wikibase Occurrence # 73601
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: | Wednesday 24 March 2010 |
| Time: | 11:15 |
| Type: |  Cessna 152 |
| Owner/operator: | Aero II Inc |
| Registration: | N93441 |
| MSN: | 15285490 |
| Year of manufacture: | 1982 |
| Total airframe hrs: | 6337 hours |
| Engine model: | Lycoming O-235-L2C |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Field near Moore, South Carolina -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Training |
| Departure airport: | Spartanburg, SC (SPA) |
| Spartanburg, SC (SPA) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The local instructional flight had departed from the airport about 30 minutes prior to the accident. After completing several aerial maneuvers, including slow flight and power-off stalls, the student pilot had begun a recovery from another power-off stall. When he applied throttle, the engine immediately began to run rough. The certificated flight instructor decided to perform a forced landing in a farm field. During the landing roll, the nosewheel came in contact with the soft soil and the airplane nosed over. A postaccident examination of the engine by a Federal Aviation Administration inspector revealed that the bottom sparkplug and associated helicoil on the No. 4 cylinder had separated from the cylinder. After new sparkplug and helicoil was installed in the engine, it ran normally.
The airplane's engine maintenance logbook showed that four days prior to the accident, the bottom sparkplug and helicoil had been replaced on the No. 4 cylinder due to a bad helicoil. The mechanic had installed a standard helicoil contrary to the engine manufacturer's recommendation to install oversize helicoil spark plug inserts.
Probable Cause: The certificated mechanic's improper installation of a helicoil, which resulted in the separation of a sparkplug and the helicoil and led to a partial loss of engine power.
Accident investigation:
 |
|
Sources:
NTSB
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 25-Mar-2010 22:25 | Digitalis | Added |
| 26-Mar-2010 00:43 | flyflyfly | Updated [Cn, Damage] |
| 21-Dec-2016 19:25 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 26-Nov-2017 15:55 | ASN Update Bot | Updated [Operator, Other fatalities, 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