- Date
- July 25, 1983, 08:30 local (13:30 UTC)
- Place
- Chilton, TX
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N4866Grumman G-164A
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- FAA report
- 19830725035579A
- Case key
- 20990
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
During the 1st swath run the prop separated from the eng. A forced landing was made in a plowed field shearing one main landing gear. The acft then went through a barbed wire fence. The #4 cylinder was removed to inspect the vibration damper pins in accordance with AD 82-23-04. The trailing pin on the rear vibration damper evidenced considerable wear. The wear had progressed to the point that the damper had been displaced from its normal position to a point causing interference with the skirts of the #2 & #3 pistons. This wear, in addition with minor wear to the leading pin, caused vibration & subsequent prop separation. Two days after the accident, AD 83-15-06 was issued grounding all acft with the prop-eng combination that was installed on this acft.
Aircraft
- Registration
- N4866
- Reported as
- Grumman G-164A
- Category
- Airplane
- Serial number
- 1019
- Engine
- PZL-Rzeszow PZL-3S, 630 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Aerial application · Part 137
- Registered owner
- Harman Air Service Inc.
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- Annual · March 25, 1983 · 30 hours before
- Departed
- T15 · Marlin, TX
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 37
- Certificate
- Commercial
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Valid Medical--no waivers/lim.
- Seat
- Front
- Flight hours
- 5,850 total · 2,285 in this make and model · 5,300 as pilot in command · 85 in the last 90 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 180° at 3 knots, gusting 5
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 81 °F
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.