ASN Wikibase Occurrence # 361359
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| Date: | Saturday 4 September 1993 |
| Time: | 15:55 LT |
| Type: |  American Aviation AA-1 Yankee |
| Owner/operator: | Private |
| Registration: | N5765L |
| MSN: | AA1-0165 |
| Year of manufacture: | 1969 |
| Total airframe hrs: | 1571 hours |
| Engine model: | LYCOMING O-235-C2C |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Tuscaloosa, AL -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Private |
| Departure airport: | |
| Montgomery, AL | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PILOT REPORTED THAT THE ENGINE RPM BEGAN TO DECAY DURING THE INITIAL CLIMB AFTER TAKEOFF. UNABLE TO MAINTAIN ALTITUDE, HE MANEUVERED THE AIRCRAFT TO A NEARBY FIELD. HE FORCE LANDED THE AIRCRAFT IN HIGH GRASS, THE LANDING GEAR COLLAPSED, AND THE AIRFRAME RECEIVED STRUCTURAL DAMAGE. AN INSPECTION OF THE ENGINE REVEALED THAT THE NUMBER 2 AND 3 CYLINDER SPARK PLUGS WERE FOULED, AND WOULD NOT PRODUCE A SPARK. A COMPRESSION CHECK SHOWED NO COMPRESSION ON THE NUMBERS 1 AND 4 CYLINDERS.
Probable Cause: FOULED SPARK PLUGS ON THE NUMBER 2 AND 3 CYLINDERS, AND A LACK OF COMPRESSION ON THE NUMBER 1 AND 4 CYLINDERS, WHICH RESULTED IN A LOSS OF ENGINE POWER. A FACTOR WAS THE HIGH VEGETATION AT THE FORCED LANDING SITE.
Accident investigation:
 |
|
Sources:
NTSB ATL93LA149
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 16-Mar-2024 17:34 | ASN Update Bot | Added |
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