- Date
- May 25, 1990, 15:00 local (20:00 UTC)
- Place
- Garwood, TX
- Injuries
- 1 uninjured
- Damage
- Destroyed
- Phase of flight
- Maneuvering
- Aircraft
- N9982Grumman 164-B
- Weather
- Visual (VMC) · Day
- Status
- Completed · report December 14, 1992
- Report
- Approved by Office Director
- FAA report
- 19900525051629A
- Case key
- 22972
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
The power loss due to super charger impeller failure.
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 said he expereinced a partial power loss over the field he was spraying. He was unable to maintain flight and performed a forced landing in a wet soft adjacent rice field, resulting in a noseover. Engine examination revealed failure of the supercharger impeller shaft bearings, which caused failure of the supercharger impeller. Failed parts contaminated the air intake system causing the intake and exhaust valves to be wedged open.
Aircraft
- Registration
- N9982
- Reported as
- Grumman 164-B
- Category
- Airplane
- Serial number
- 1378
- Engine
- P&W 1340, 600 horsepower, reciprocating
- Damage
- Destroyed
- Flight
- Aerial application · Part 137
- Operator
- Thompson Dusting Service, doing business as Thompson Flyers, Inc.
- Registered owner
- Thompson Dusting Ser. Inc
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- Annual · March 1, 1990
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
- 51
- Certificate
- Commercial
- Airplane ratings
- Single-engine land
- Medical
- Class 2, Valid Medical--w/ waivers/lim
- Seat
- Front
- Flight hours
- 12,000 total · 7,000 in this make and model · 12,000 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
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 90 °F, dew point -0 °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.