- Date
- July 6, 1987, 09:00 local (17:00 UTC)
- Place
- White Mountain, AK
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N777AXDornier DO-27
- Weather
- Visual (VMC) · Day
- Status
- Completed · report May 9, 1988
- Report
- Approved by Office Director
- NTSB office
- Alaska Regional Office
- FAA report
- 19870706033959A
- Case key
- 4867
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
The pilot stated that while cruising at 2000 feet MSL the engine started to run rough. He made an emergency landing on the tundra. Examination of the engine revealed the number one and number two cylinders broke and separated in flight.
Aircraft
- Registration
- N777AX
- Reported as
- Dornier DO-27
- Category
- Airplane
- Serial number
- 458
- Airframe hours
- 1,914
- Engine
- Lycoming GO-480-B1A6, 295 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Registered owner
- William S. Munz
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · June 10, 1987 · 2 hours before
- Departed
- Omilak, 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
- 77
- Certificate
- Private
- Airplane ratings
- Multi-engine land, Single-engine land
- Medical
- Class 3, Valid Medical--no waivers/lim.
- Seat
- Left
- Flight hours
- 19,731 total · 88 in this make and model · 19,680 as pilot in command · 26 in the last 90 days · 10 in the last 30 days · 2 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 100 statute miles
- Lowest ceiling
- None
- Temperature
- 61 °F, dew point 39 °F
- Altimeter
- 29.00 inHg
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.