ASN Wikibase Occurrence # 368977
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| Date: | Wednesday 5 April 1989 |
| Time: | 17:00 LT |
| Type: |  Aero Commander 685 |
| Owner/operator: | Tcr Inc. |
| Registration: | N685RB |
| MSN: | 12059 |
| Year of manufacture: | 1974 |
| Total airframe hrs: | 1791 hours |
| Engine model: | CONTINENTAL GTSIO-520-K1B |
| Fatalities: | Fatalities: 0 / Occupants: 4 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Southern Pines, NC -
 United States of America
|
| Phase: | En route |
| Nature: | Executive |
| Departure airport: | Raleigh, NC (KRDU) |
| Augusta, GA (KDNL) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PLT REPORTED THAT DURING CRUISE FLIGHT AN ENG BEGAN RUNNING ROUGH. HE PUT THE FUEL BOOST PUMP SWITCH IN THE HIGH BOOST POSITION AND ADVANCED THE THROTTLE, MIXTURE, AND PROP LEVERS TO MAX. THIS RESULTED IN A LOSS OF PWR ON BOTH ENGS. THE ACFT TOUCHED DOWN HARD SHORT OF THE RUNWAY DURING THE FORCED LANDING AND COLLIDED WITH TREES. THE ACFT FLT MANUAL STATED THAT THE MIXTURE MUST BE ADJUSTED AT REDUCED POWER SETTINGS TO AVOID A RICH MIXTURE. THE EMERG PROCEDURES IN THE FLT MANUAL CAUTIONS THAT A ROUGH RUNNING ENG MAY BE DUE TO TOO RICH OF A MIXTURE.
Probable Cause: THE PILOT'S IMPROPER USE OF THE MIXTURE CONTROLS WHICH RESULTED IN ENGINE ROUGHNESS AND THE FAILURE TO PROPERLY EXECUTE THE EMERGENCY PROCEDURE FOR A ROUGH ENGINE BY PLACING THE FUEL BOOST PUMP SWITCH IN THE LOW POSITION.
Accident investigation:
 |
|
Sources:
NTSB ATL89LA121
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Mar-2024 09:33 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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