- Date
- April 7, 1989, 08:30 local (13:30 UTC)
- Place
- Jefferson, OK
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N4369SAir Tractor 301
- Weather
- Visual (VMC) · Day
- Status
- Completed · report June 10, 1991
- Report
- Approved by Office Director
- FAA report
- 19890407007629A
- Case key
- 22697
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
Loss of engine power, due to a cracked number 4 cylinder. A factor related to the accident was: the terrace (dirt bank) in the emergency landing area.
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 airplane was on a spraying flight, when the number four cylinder cracked & the engine lost power. During a subsequent emergency landing, the airplane rolled about 450 ft, hit a terrace & nosed over.
Aircraft
- Registration
- N4369S
- Reported as
- Air Tractor 301
- Category
- Airplane
- Serial number
- 301-0049
- Airframe hours
- 3,600
- Engine
- P&W R-1340, 600 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Aerial application · Part 137
- Operator
- Kirk, David T., doing business as Homestead Farms Flying
- Registered owner
- Homestead Forms Flying Service
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- Annual · February 28, 1989 · 61 hours before
- Departed
- OK72 · Pond Creek, OK
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, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Valid Medical--w/ waivers/lim
- Seat
- Center
- Flight hours
- 10,703 total · 4,700 in this make and model · 10,030 as pilot in command · 621 in the last 90 days · 220 in the last 30 days · 10 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 200° at 5 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- 25,000 ft overcast
- Temperature
- 45 °F, dew point 39 °F
- Altimeter
- 30.00 inHg
- Observed at
- PNC, 35 nm away
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 N4369S · 1
Matched to the same aircraft by N-number and date.