ASN Wikibase Occurrence # 367819
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 21 October 1989 |
| Time: | 07:00 LT |
| Type: |  Lake LA-4 |
| Owner/operator: | Private |
| Registration: | N1212L |
| MSN: | |
| Engine model: | LYCOMING O-360 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Apalachicola, FL -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Private |
| Departure airport: | (KAAF) |
| New Orleans, LA (MSY | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
SHORTLY AFTER TAKEOFF AT ABOUT 100' AGL, THE ENG LOST POWER. AN EMERG LNDG WAS THEN MADE IN A SWAMPY AREA & THE ACFT, WAS DAMAGED. AN EXAM OF THE ENG REVEALED THAT THE #1 EXHAUST VALVE PUSHROD WAS BENT. ACCORDING TO THE ENG MANUFACTURERTHIS RESULTED FROM A STICKING EXHAUST VALVE, WHICH ALLOWED THE PISTON TO CONTACT THE VALVE. THE VALVE STEM CAP HAD FAILED & LODGED BETWEEN THE ROCKER ARM AND THE OUTER VALVE SPRING ASSEMBLY.
Probable Cause: BINDING AND SUBSEQUENT FAILURE OF THE #1 EXHAUST VALVE. A FACTOR RELATED TO THE ACCIDENT WAS: THE SOFT/WET (SWAMPY) TERRAIN CONDITION IN THE EMERGENCY LANDING AREA.
Accident investigation:
 |
|
Sources:
NTSB MIA90LA016
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 22-Mar-2024 19:11 | 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