- Date
- August 4, 1982, 21:15 local (Aug 5, 1982, 05:15 UTC)
- Place
- Near Big Lake, AK
- Injuries
- 2 uninjured
- Damage
- Minor damage
- Phase of flight
- Enroute
- Aircraft
- N70604Piper J-3
- Weather
- Visual (VMC) · Day
- Status
- Completed · report August 4, 1983
- Report
- Approved by Office Director
- NTSB office
- Alaska Regional Office
- Case key
- 71848
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the incident.
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
During cruise flight, the aircrafts engine lost power and began vibrating severly. After the pilot tried unsuccessfully to remedy the problem, he executed an emergency landing in a marsh. Shortly after touchdown the aircraft bogged down and nosed over. A teardown examination of the engine revealed that it had experienced an internal failure in the area of the #1 and #2 cylinders. While the exact mode and sequence of failure was not identified, evidence of inadequate lubrication was observed.
Aircraft
- Registration
- N70604
- Reported as
- Piper J-3
- Category
- Airplane
- Serial number
- 17613
- Airframe hours
- 9,272
- Engine
- Continental O-200A, 100 horsepower, reciprocating
- Damage
- Minor damage
- Flight
- Personal · Part 91
- Operator
- Stephen F. Turner
- Registered owner
- Stephen F. Turner
- Departed
- LHD · Lake Hood, AK
- Destination
- LHD · Lake Hood, 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
- 37
- Certificate
- Private
- Airplane ratings
- Single-engine land, Single-engine sea
- Medical
- Class 3, Valid Medical--w/ waivers/lim
- Flight hours
- 129 total · 66 in this make and model · 81 as pilot in command · 11 in the last 90 days · 2 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 20 statute miles
- Temperature
- 158 °F
Other investigations on N70604 · 2
Matched to the same aircraft by N-number and date.