# NTSB ANC88LA123: de Havilland DHC-2, N906JS, Fairbanks, AK, September 4, 1988

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 3, 1988, 21:13 local (Sep 4, 1988, 05:13 UTC)
- Place: Fairbanks, AK
- Coordinates: 64.809745, -147.719329 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=64.8097&lon=-147.7193&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report July 21, 1989
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 5064
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC88LA123
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/5064/pdf
- Page: https://openairdocs.org/ntsb/ANC88LA123

## 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, takeoff - initial climb
  - combustion assembly,outer casing - failure,total
  - combustion assembly,inner casing - failure,total
  - turbine assembly,turbine blade - separation (cause)
- Fire, takeoff
- Forced landing, descent - emergency
- Hard landing, landing
  - terrain condition - none suitable (contributing factor)

## Analysis

THE AIRPLANE WAS ON A CLIMBOUT AT APPROXIMATELY 1000 TO 1200 FEET M.S.L. WHEN THE ENGINE QUIT AND THE PILOT ENCOUNTERED AN ENGINE FIRE. THE PILOT ELECTED TO GO BACK TO THE AIRPORT.  THE AIRPLANE CRASHED ON THE TAXIWAY, AND THE AIRPLANE WAS SUBSTANTIALLY DAMAGED.  THE PILOT WAS NOT INJURED.  EXAMINATION OF THE AIRCRAFT ENGINE REVEALED A HOLE IN THE SIDE OF THE ENGINE COMBUSTION CHAMBER LINER.  THE TURBINE CHAMBER AND TURBINE BLADE WERE COMPLETELY DESTROYED BY THE INFLIGHT FIRE AND UNCONTAINED CASE FAILURE.

## Aircraft

- Registration: [N906JS](https://openairdocs.org/aircraft/N906JS), registered now, S/N 1659 TB34, built 1966 (OpenAirDocs)
- Reported make and model: de Havilland DHC-2
- Registry model: [Dehavilland DHC-2](https://openairdocs.org/model/dehavilland-dhc-2) (registry code 2808001) (OpenAirDocs)
- Registry engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999) (OpenAirDocs)
- Category: Airplane
- Serial number: 1659TB34
- Airframe hours: 6152
- Engines: P&W PT6A-20 550 horsepower turbo prop
- Damage: Substantial damage
- Fire: In-Flight
- Flight: Personal, Part 91
- Registered owner: Joseph W. Sheehan
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, June 18, 1988, 14 hours before
- Destination: MINTO FLATS, AK
- Airport: FAJ, Fairbanks

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 44; private; airplane ratings: single-engine sea, single-engine land; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 3,000 total, 132 in this make and model, 3,000 as pilot in command, 55 in the last 90 days, 15 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 360° at 4 knots
- Visibility: 30 statute miles
- Lowest ceiling: 20,000 ft unknown
- Temperature: 54 °F, dew point 43 °F
- Altimeter: 29.00 inHg
- Observed at: FAI

## 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 19880903036989A](https://openairdocs.org/incident/19880903036989A), Sep 3, 1988: Dhav DHC2MK2, Fairbanks, AK, Substantial damage. Turbine engine failed after takeoff causing an engine fire. Trying to return, crashed on airport.

## Other investigations on N906JS (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 ANC12CA070](https://openairdocs.org/ntsb/ANC12CA070), Jul 8, 2012: Dehavilland DHC-2 (N906JS), Cantwell, AK, substantial damage. Probable cause: The right seat passenger’s inadvertent contact with the emergency fuel shutoff valve, which resulted in fuel starvation and a total loss of engine power. Contributing to the accident was the pilot's…

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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