- Date
- November 16, 1989, 08:45 local (16:45 UTC)
- Place
- Grimes, CA
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N3633QSchweizer G-164B
- Weather
- Visual (VMC) · Day
- Status
- Completed · report June 30, 1992
- Report
- Approved by Office Director
- FAA report
- 19891116045719A
- Case key
- 26569
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
Failure of the counter weight bracket to the propeller assembly.
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 of the spray aircraft executed an emergency landing into a plowed field after experiencing a loss of engine power. Examination of the propeller revealed a portion of the counter weight bracket was missing. There were several areas of 'beach marks' extending from the inner radius to the outer radius of the fractured areas.
Aircraft
- Registration
- N3633Q
- Reported as
- Schweizer G-164B
- Category
- Airplane
- Serial number
- 777B
- Airframe hours
- 2,355
- Engine
- P&W R-1340-AN1, 600 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Aerial application · Part 137
- Operator
- Harold C. Tacker
- Registered owner
- Onstott Dusters
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- Annual · March 1, 1989 · 582 hours before
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
- 63
- Certificate
- Commercial
- Airplane ratings
- Multi-engine land, Single-engine land
- Medical
- Class 2, Valid Medical--w/ waivers/lim
- Seat
- Center
- Flight hours
- 20,000 total · 6,000 in this make and model · 19,500 as pilot in command · 300 in the last 90 days · 100 in the last 30 days · 10 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 25 statute miles
- Lowest ceiling
- None
- Temperature
- 43 °F, dew point 39 °F
- Altimeter
- 30.00 inHg
- Observed at
- MYV
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 N3633Q · 2
Matched to the same aircraft by N-number and date.