ASN Wikibase Occurrence # 77735
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 10 September 2010 |
| Time: | 13:15 |
| Type: |  Cessna 150 |
| Owner/operator: | Private |
| Registration: | N7922E |
| MSN: | 17722 |
| Year of manufacture: | 1959 |
| Total airframe hrs: | 2587 hours |
| Engine model: | Continental 0-200 SERIES |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Near Fayette Airport (WV59), West Virginia -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Private |
| Departure airport: | Fayetteville, WV (WV59) |
| Johson City, TN (0A4) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot stated that during the initial climb the airplane engine's rpm gauge indicated 1900 and the airplane would not gain altitude which resulted in a forced landing. Postaccident examination of the airplane revealed fuel in the fuel tanks and carburetor system. All cylinders had compression when checked. The right magneto developed sparks to all corresponding plugs. The left magneto produced spark to one plug only. A teardown examination of the left magneto revealed the distributor gear had 12 gear teeth sheared from the disk. Review of the engine's maintenance records showed that the ignition system had several inspections as required by airworthiness directives and service bulletins (SB) throughout its time in service. The distributor gear was required to be replaced with a redesigned gear as outlined in SB658; however, both magnetos had the old-style distributor gear, dating to before 1978. Additionally, the gear tooth separation was noted starting and ending at the magneto timing block location marker. The manufacturer of the magneto warned not to use a gear holding tool during installation, which may cause hidden damage to the distributor gear and subsequent engine failure.
Probable Cause: A loss of engine power due to the failure of the left magneto system’s distributor gear as a result of the improper maintenance of the magnetos by maintenance personnel.
Accident investigation:
 |
|
Sources:
NTSB
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 10-Sep-2010 23:33 | slowkid | Added |
| 21-Dec-2016 19:25 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 26-Nov-2017 18:10 | ASN Update Bot | Updated [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