# Accident 19980529014859A: Cessna 207, Bethel, AK, May 29, 1998

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: May 29, 1998, 15:57 local time
- Place: Bethel, AK
- Damage: Substantial damage
- Phase of flight: Fcd/Prec Ldg From Cruise
- Operating rules: Air taxi and commuter (Part 135)
- Operator: UATA
- Location: 60.8100° N, 161.8507° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=60.8100&lon=-161.8507&mi=10
- Aircraft: N9956M, registered now (https://openairdocs.org/aircraft/N9956M) (OpenAirDocs)
- Registry model: Cessna 207A (registry code 2073605, https://openairdocs.org/model/cessna-207a) (OpenAirDocs)
- Registry engine: Continental IO-520-F (registry code 17237, https://openairdocs.org/engine/continental-io-520-f) (OpenAirDocs)
- Reported make and model: CESSNA 207
- Reported engine: CONT IO520F
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 4,050 total, 1,770 in this make and model, 220 in the last 90 days
- NTSB investigation: [NTSB ANC98LA059](https://openairdocs.org/ntsb/ANC98LA059) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19980529014859A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

ENGINE POWER DROPPED TO IDLE ON CLIMB TO CRUISE. NOSED OVER LANDING IN MARSHY TUNDRA. (FROM .4) DURING CLIMB TO CRUISE WHILE PASSING 2,000 FEET MSL, THE ENGINE LOST TOTAL POWER. THE AIRPLANE NOSED ONTO ITS BACK DURING THE SUBSEQUENT FORCED LANDING IN MARSHY TUNDRA. POSTACCIDENT INSPECTION REVEALED WEAR BETWEEN THE THROTTLE ARM AND THE CONNECTING HARDWARE BUSHING. THE THROTTLE CONTROL LEVER HAD DISCONNECTED FROM THE THROTTLE ARM. SERVICE BULLETIN SEB95-15R1, 'THROTTLE LEVER INSPECTION,' THAT REQUIRED A VISUAL INSPECTION FOR WEAR BETWEEN THE ARM AND BUSHING EACH 50 HOURS OR 12 MONTHS, HAD BEEN COMPLIED WITH 56 HOURS, 163 HOURS, AND 268 HOURS PRIOR TO THE ACCIDENT BY COMPANY MECHANICS. THE NEWLY OVERHAULED ENGINE WAS INSTALLED 334 HOURS PRIOR TO THE ACCIDENT. (-23) ON MAY 29, 1998 A CESSNA 207 AIRPLANE, N9956M, OPERATED BY ARCTIC TRANSPORT SERVICE INC, SUSTAINED SUBSTANTIAL DAMAGE DURING A FORCED LANDING 10 MILES WEST OF BETHEL ALASKA. PILOTED BY TREVOR U. EISSLER, AN AIRLINE TRANSPORT PILOT, WHO WAS UNINJURED. VISUAL METEOROLOGICAL CONDITIONS PREVAILED. THE AIRPLANE, CARRYING CARGO ONLY, WAS ON A COMPANY FLIGHT PLAN. THE PILOT                                                          REPORTED THAT DURING CLIMB TO CRUISE, AT 2,000 FEET MSL, THE ENGINE POWER DROPPED TO IDLE. MANIPULATING THE ENGINE CONTROLS DID NOT RESULT IN POWER ABOVE IDLE. A FORCED LANDING WAS MADE IN MARSHY TUNDRA, THE AIRPLANE NOSED OVER ONTO ITS BACK.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB ANC98LA059](https://openairdocs.org/ntsb/ANC98LA059), May 29, 1998: Cessna 207 (N9956M), Bethel, AK, substantial damage. Probable cause: The throttle arm disconnecting from the throttle linkage to the engine as a result of inadequate inspection by company maintenance personnel. Factors associated with this accident were the company…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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