# NTSB FTW92LA147: Cessna 182, N5381B, Coweta, OK, June 5, 1992

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 4, 1992, 21:23 local (Jun 5, 1992, 02:23 UTC)
- Place: Coweta, OK
- Coordinates: 35.95964, -95.660797 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=35.9596&lon=-95.6608&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report June 30, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 18508
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW92LA147
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/18508/pdf
- Page: https://openairdocs.org/ntsb/FTW92LA147

## Probable cause

THE TOTAL LOSS OF ENGINE POWER FOR UNDETERMINED REASONS. FACTORS WERE THE DARKNESS OF THE NIGHT AND THE LACK OF SUITABLE TERRAIN AVAILABLE TO THE PILOT FOR THE FORCED LANDING.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of engine power, cruise - normal
  - reason for occurrence undetermined (cause)
- Forced landing, descent - emergency
- In flight collision with object, descent - emergency
  - object - tree(s)
- In flight collision with terrain/water, descent - uncontrolled
  - terrain condition - water
  - terrain condition - none suitable (contributing factor)

## Analysis

THE PILOT DEPARTED ON A CROSS COUNTRY WITH SCHEDULED LANDINGS AT THREE AIRPORTS. AFTER DEPARTING THE LAST SCHEDULED STOP, CRUISE WAS ESTABLISHED AT 1,800 FEET. FIFTEEN MINUTES LATER, A POPPING SOUND WAS HEARD FROM THE ENGINE AND ABOUT A MINUTE LATER ENGINE POWER WAS LOST WITHOUT FURTHER WARNING. THE AIRPLANE IMPACTED A TREE PRIOR TO SUBMERGING IN A RIVER. THE PILOT STATED THAT HE HAD 25 GALLONS OF FUEL REMAINING PRIOR TO HIS LAST DEPARTURE. ENGINE TEARDOWN FAILED TO DISCLOSE ANY MECHANICAL PROBLEM THAT WOULD HAVE PREVENTED NORMAL ENGINE OPERATION.

## Aircraft

- Registration: [N5381B](https://openairdocs.org/deregistered/N5381B-1992-10-19), registration cancelled 1992-10-19, S/N 33381 (OpenAirDocs)
- Reported make and model: CESSNA 182
- Registry model: [Cessna 182](https://openairdocs.org/model/cessna-182) (registry code 2072702) (OpenAirDocs)
- Category: Airplane
- Serial number: 33381
- Airframe hours: 3029
- Engines: CONTINENTAL O-470-L 230 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: James D. Onyon
- Registered owner: James D. Onyon
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, July 25, 1991, 146 hours before
- Departed: H68, WAGONER, OK
- Destination: RVS, TULSA, OK

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 36; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 175 total, 60 in this make and model, 150 as pilot in command, 25 in the last 90 days, 10 in the last 30 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Dusk
- Wind: 240° at 3 knots
- Visibility: 12 statute miles
- Lowest ceiling: none
- Temperature: 72 °F, dew point 63 °F
- Altimeter: 29.00 inHg
- Observed at: TUL, 20 nm away

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19920604018459A](https://openairdocs.org/incident/19920604018459A), Jun 4, 1992: Cessna 182, Tulsa, OK, Substantial damage. Reported power loss on letdown for destination. Landing in river struck tree. No engine defects found.

## Other investigations on N5381B (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 UNK65X0875](https://openairdocs.org/ntsb/UNK65X0875), Nov 28, 1964: Cessna 182 (N5381B), Broken Arrow, OK, substantial damage

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.

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