- Date
- August 9, 1984, 10:00 local (17:00 UTC)
- Place
- Prineville, OR
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N83233Aeronca 7AC
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- FAA report
- 19840809042079A
- Case key
- 39988
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 maneuvering plt heard a loud chatter coming from the engine accompanied by a loss of power. Plt reduced remaining power and initiated a forced landing in a rough barley field. Post accident investigation revealed the crankshaft broke near the number two crankthrow. Further investigation revealed the journal was improperly ground.
Aircraft
- Registration
- N83233
- Reported as
- Aeronca 7AC
- Category
- Airplane
- Serial number
- 7AC-1897
- Engine
- Continental C-65-8, 65 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Registered owner
- D. Twiss,L. Carter,R. Mcelroy
- Airworthiness certificate
- Standard, Normal
- Departed
- S39 · Prineville, OR
- 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
- Certificate
- Student
- Airplane ratings
- Single-engine land
- Medical
- Class 3, Valid Medical--no waivers/lim.
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 50 statute miles
- Lowest ceiling
- None
- Temperature
- 79 °F
- Altimeter
- 30.00 inHg
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.