- Date
- June 27, 1990, 13:30 local (21:30 UTC)
- Place
- Caribou Lake, AK
- Injuries
- 3 uninjured
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N5147GDe Havilland DHC-2
- Weather
- Visual (VMC) · Day
- Status
- Completed · report February 12, 1993
- Report
- Approved by Office Director
- NTSB office
- Alaska Regional Office
- FAA report
- 19900627025209A
- Case key
- 5389
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
A power loss caused by the failure of a piston cylinder.
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
The pilot reported a complete loss of power shortly after takeoff from Caribou Lake. He said that he made a controlled landing into small spruce trees, causing substantial damage to the airplane. A subsequent inspection of the airplane's engine revealed that the number nine cylinder had separated, causing the loss of power.
Aircraft
- Registration
- N5147G
- Reported as
- De Havilland DHC-2
- Category
- Airplane
- Serial number
- 350
- Airframe hours
- 8,228
- Engine
- P&W R985AN4B, 450 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Part 135
- Registered owner
- Alfred M Lee
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · May 22, 1990 · 47 hours before
- Flight plan
- Company VFR
- Airport
- NONE
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
- 65
- Certificate
- Commercial
- Airplane ratings
- Single-engine land, Single-engine sea
- Medical
- Class 2, Valid Medical--w/ waivers/lim
- Seat
- Left
- Flight hours
- 18,000 total · 1,000 in this make and model · 35 in the last 90 days · 35 in the last 30 days · 4 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 360° at 5 knots
- Visibility
- 50 statute miles
- Lowest ceiling
- 10,000 ft broken
- Temperature
- 61 °F
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N5147G · 1
Matched to the same aircraft by N-number and date.