ASN Wikibase Occurrence # 295695
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: | Monday 16 June 2003 |
| Time: | 08:27 LT |
| Type: |  Zenair CH 601 HDS |
| Owner/operator: | |
| Registration: | N721PT |
| MSN: | 63423 |
| Total airframe hrs: | 79 hours |
| Engine model: | Stratus EA-81 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Thomson, Georgia -
 United States of America
|
| Phase: | Unknown |
| Nature: | Private |
| Departure airport: | Atlanta-Cobb County-Mc Collum Field, GA (KRYY) |
| Thomson-McDuffie County Airport, GA (KHQU) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During cruise flight, the engine began to run rough and lose power, then it stopped completely. The pilot executed an emergency landing in a field, and the airplane collided with small trees and a tree stump. Examination of the engine revealed the intake valve on the No. 3 cylinder was fractured in the transition region between the stem and the head with no bending deformation. Metallurgical examination revealed the lock for the spring seat displayed fretting damage at the internal and external faces. Fretting damage was observed on the corresponding surface of the stem portion of the valve and on the corresponding bore face of the spring seat. The fretting damage was characteristic of higher than normal operating stresses or vibration and fatigue.
Probable Cause: The total loss of engine power due to the fatigue fracture of the No. 3 cylinder intake valve, which resulted in a forced landing to rough terrain and subsequent collision with small trees and a tree stump.
Accident investigation:
 |
|
Sources:
NTSB ATL03LA106
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 13-Oct-2022 11:48 | 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