ASN Wikibase Occurrence # 359659
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| Date: | Sunday 16 October 1994 |
| Time: | 17:30 LT |
| Type: |  Mooney M-20J |
| Owner/operator: | Allen Spector & Assoc. , Ltd |
| Registration: | C-GJRA |
| MSN: | 240894 |
| Total airframe hrs: | 3172 hours |
| Engine model: | LYCOMING IO-360-A3B6D |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Aberdeen, SD -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Executive |
| Departure airport: | |
| Billings, MT (KBIL) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PILOT STATED THAT THE AIRPLANE'S ENGINE BEGAN TO LOSE RPM NEAR THE END OF ITS TAKEOFF ROLL. HE SAID HE '...HAD NO TIME TO ABORT', AND CONTINUED THE TAKEOFF. AFTER LIFTOFF THE ENGINE'S RPM DROPPED TO 1800 ACCORDING TO THE PILOT. SHORTLY AFTER THE ADDITIONAL POWER LOSS THE PILOT MADE A FORCED LANDING. AN ON-SCENE EXAMINATION AND ENGINE TEST RUN REVEALED NO MECHANICAL ANOMALIES THAT WOULD CAUSE A POWER LOSS. THE MIXTURE CONTROL WAS FOUND ABOUT 1/2 TO 3/4 OF AN INCH AFT OF ITS FULL FORWARD POSITION. THE ELECTRIC FUEL PUMP WAS IN THE 'OFF' POSITION. A FLOW CHECK WAS CONDUCTED ON THE FUEL INJECTOR NOZZLES AND FUEL SERVO. THE INJECTOR NOZZLES WERE FOUND TO BE WITHIN THE MANUFACTURER'S SERVICE LIMITS. THE FUEL SERVO HAD A FUEL FLOW RATE OF 22.2 POUNDS PER HOUR AT THE IDLE SETTING. THE MANUFACTURER'S FUEL FLOW SPECIFICATION WAS BETWEEN SIX AND SEVEN POUNDS PER HOUR. THE PILOT STATED HE MADE THE TAKEOFF WITH THE MIXTURE CONTROL IN A LEANED POSITION.
Probable Cause: the pilot's failure to assure adequate maintenance was performed on the airplane and the resulting intentional flight with known deficiencies. Factors associated with the accident were the pilot's failure to follow the aircraft flight manual and the improper mixture control setting used by the pilot.
Accident investigation:
 |
|
Sources:
NTSB CHI95LA014
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 15-Mar-2024 13:18 | ASN Update Bot | Added |
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