- Date
- August 22, 1986, 18:30 local (23:30 UTC)
- Place
- Goodwin, AR
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N634UGrumman G-164
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- FAA report
- 19860822042409A
- Case key
- 34238
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 ag acft was being used to spray nudrin on soybeans when the engine lost power. The plt made a forced landing in a rice field and the acft flipped forward to the inverted position. Investigation revealed the two-piece cam reduction gear came apart. An AD had been issued in 1966 that called for replacement with a one-piece gear at the next engine overhaul after 07-09-66. This accident engine received its last overhaul prior to the issuance of that AD.
Aircraft
- Registration
- N634U
- Reported as
- Grumman G-164
- Category
- Airplane
- Serial number
- 370
- Airframe hours
- 6,575
- Engine
- P&W R-985, 450 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Aerial application · Part 137
- Registered owner
- Gary J. Michaelis
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- Annual · February 1, 1986
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
- 30
- Certificate
- Commercial
- Airplane ratings
- Single-engine land
- Medical
- Class 1, Valid Medical--no waivers/lim.
- Seat
- Center
- Flight hours
- 1,308 total · 611 in this make and model · 1,234 as pilot in command · 200 in the last 90 days
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 84 °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 N634U · 3
Matched to the same aircraft by N-number and date.