# NTSB DEN90IA072: Cessna 208A, N812FE, Wright, WY, March 6, 1990

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: March 5, 1990, 19:00 local (Mar 6, 1990, 02:00 UTC)
- Place: Wright, WY
- Coordinates: 43.749286, -105.490402 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=43.7493&lon=-105.4904&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report December 30, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 17851
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN90IA072
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/17851/pdf
- Page: https://openairdocs.org/ntsb/DEN90IA072

## Probable cause

THE INCIDENT WAS ENGINE FAILURE DUE TO GAS PRODUCER TURBINE DISC BLADE FAILURE CAUSED BY STRESS RUPTURE.

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, climb - to cruise
  - turboshaft engine,gas generator turbine - fractured (cause)
- Forced landing, descent - emergency

## Analysis

WHILE IN CLIMB TO CRUISE THE ENGINE FAILED AND THE PILOT CONDUCTED AN EMERGENCY DESCENT TO A SUCCESSFUL LANDING ON A HIGHWAY. THE AIRCRAFT SUSTAINED NO DAMAGE AS A RESULT OF THE LANDING AND DAMAGE WAS LIMITED TO THE INTERNAL PORTIONS OF THE ENGINE. INVESTIGATION REVEALED THE ENGINE FAILED DUE TO STRESS RUPTURE OF GAS PRODUCER TURBINE DISC BLADES. THIS FAILURE IS DUE TO ENGINE OVERHEAT. WHEN THE OVERHEAT OCCURRED COULD NOT BE DETERMINED.

## Aircraft

- Registration: N812FE (not matched to a registry record)
- Reported make and model: CESSNA 208A
- Category: Airplane
- Serial number: 20800040
- Airframe hours: 4757
- Engines: P&W PT6A-114 600 horsepower turbo prop
- Damage: No damage
- Flight: Part 135
- Operator: Corporate Air Inc., doing business as Federal Express
- Registered owner: Federal Express, Corp.
- Airworthiness certificate: Standard, Normal
- Last inspection: AAIP, February 14, 1990, 63 hours before
- Departed: GCC, GILLETTE, WY
- Destination: DEN, DENVER, CO
- Flight plan: IFR
- Airport: NONE

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 36; airline transport; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: right; flight hours: 8,500 total, 500 in this make and model, 8,400 as pilot in command

## Weather

- Conditions: Visual (VMC), Night/dark
- Wind: 20° at 4 knots
- Visibility: 30 statute miles
- Lowest ceiling: 3,800 ft overcast
- Temperature: 39 °F
- Altimeter: 29.00 inHg
- Observed at: GCC, 37 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).

- [Incident 19900305042359I](https://openairdocs.org/incident/19900305042359I), Mar 5, 1990: Cessna 208B, Wright, WY. Report engine failed during climb. Explosive noise and light vibration. Landed on highway.

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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