ASN Wikibase Occurrence # 292227
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| Date: | Monday 5 June 2006 |
| Time: | 18:00 LT |
| Type: |  Beechcraft A36 |
| Owner/operator: | Private |
| Registration: | N24BF |
| MSN: | E1736 |
| Year of manufacture: | 1980 |
| Total airframe hrs: | 3465 hours |
| Engine model: | Continental IO-550B |
| Fatalities: | Fatalities: 0 / Occupants: 4 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Ennis, Montana -
 United States of America
|
| Phase: | Unknown |
| Nature: | Private |
| Departure airport: | Ennis Big Sky Airport, MT (KEKS) |
| HAMILTON, MT (6S5) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported that shortly after takeoff the airplane lost engine power and he elected to land in an open field south of the airport. Post accident evaluation and testing of the mixture control linkage revealed that the metering shaft rotated to the mechanical stop when actuated to the "idle cut-off" position; however, when the mixture control was actuated to the "full-rich" position, the metering shaft rotated approximately 40 percent of potential (full) travel and did not reach the mechanical stop. Further examination revealed the mixture control arm retaining nut was tight, however extensive wear to the serrated mating surfaces of the mixture control arm and metering shaft was observed. The serrated edges had worn smooth and fretting type damage was noted to both surfaces. Maintenance records showed that the airplane's original engine, a Continental IO-520, was removed and the airframe was retrofitted with a factory rebuilt (zero time) IO-550-B in accordance with a Supplemental Type Certificate (STC). The certified airframe and power plant (A
Accident investigation:
 |
|
Sources:
NTSB SEA06LA114
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 08-Oct-2022 16:01 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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