ASN Wikibase Occurrence # 361370
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| Date: | Friday 3 September 1993 |
| Time: | 13:41 LT |
| Type: |  Mooney M20J |
| Owner/operator: | Private |
| Registration: | N7666P |
| MSN: | 24-1673 |
| Total airframe hrs: | 315 hours |
| Engine model: | LYCOMING IO-360-A3B6D |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Mitchellville, MD -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Unknown |
| Departure airport: | (W00) |
| (W00) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PILOT REPORTED THAT HE HAD COMPLETED HIS PRETAKEOFF CHECK AND RUN-UP, SUCCESSFULLY. HE STATED THAT DURING THE INITIAL CLIMB, AT ABOUT 400 FEET ABOVE THE GROUND, THE ENGINE LOST POWER. HE TRIED TO RESTART THE ENGINE, BUT WAS UNABLE. THE AIRPLANE IMPACTED IN A WOODED AREA ABOUT 1/2 MILE NORTH OF THE AIRPORT. THIS WAS THE SECOND FLIGHT WHILE IN MAINTENANCE TO DETERMINE TWO PRIOR PARTIAL POWER LOSSES DURING INITIAL CLIMB. THE AIRPLANE WAS REMOVED TO A HANGAR WHERE AN ENGINE RUN WAS ACCOMPLISHED AFTER A SUBSTITUTE PROPELLER WAS INSTALLED. THE ENGINE ATTAINED OVER 2675 RPM AND 26 INCHES OF MANIFOLD PRESSURE. EXAMINATION OF THE FUEL SERVO INLET SCREENS REVEALED EVIDENCE OF RUST AND CONTAMINATION. FURTHER TESTING OF THE SERVO INDICATED WATER AND CORROSION IN THE DIAPHRAGM ASSEMBLY.
Probable Cause: CORROSION IN THE FUEL CONTROL UNIT, WHICH RESULTED IN FUEL STARVATION AND LOSS OF ENGINE POWER. RELATED FACTORS WERE: INADEQUATE MAINTENANCE, AND THE LACK OF SUITABLE TERRAIN FOR AN EMERGENCY LANDING.
Accident investigation:
 |
|
Sources:
NTSB BFO93FA153
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 16-Mar-2024 17:46 | ASN Update Bot | Added |
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