- Date
- September 15, 1988, 17:09 local (Sep 16, 1988, 01:09 UTC)
- Place
- Mcgrath, AK
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N98JHde Havilland DHC-2
- Weather
- Visual (VMC) · Day
- Status
- Completed · report November 7, 1989
- Report
- Approved by Office Director
- NTSB office
- Alaska Regional Office
- FAA report
- 19880915039059A
- Case key
- 5079
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Analysis
While cruising, the pilot-in-command experienced a rough engine and finally an unexplained power reduction to idle. He was unable to glide the float equipped airplane to a body of water and executed a forced landing on the tundra where the airplane sustained substantial damage. Examination of the engine revealed a failed exhaust valve.
Aircraft
- Registration
- N98JH
- Reported as
- de Havilland DHC-2
- Category
- Airplane
- Serial number
- 953
- Airframe hours
- 6,800
- Engine
- P&W R-985, 450 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Registered owner
- Willow Air Service
- Airworthiness certificate
- Standard, Normal
- Last inspection
- 100 hour · September 13, 1988
- Departed
- Inoko River, AK
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 27
- Certificate
- Airline transport
- Airplane ratings
- Multi-engine land, Single-engine land, Single-engine sea
- Instrument ratings
- Airplane
- Medical
- Class 2, Valid Medical--no waivers/lim.
- Seat
- Left
- Flight hours
- 5,500 total · 1,300 in this make and model · 5,200 as pilot in command · 275 in the last 90 days · 120 in the last 30 days · 6 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 50 statute miles
- Lowest ceiling
- 5,000 ft broken
- Temperature
- 50 °F
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.