- Date
- July 8, 1992, 10:30 local (15:30 UTC)
- Place
- Grady, AR
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N4979XAyres S2R
- Weather
- Visual (VMC) · Day
- Status
- Completed · report June 30, 1993
- Report
- Approved by Office Director
- FAA report
- 19920708024309A
- Case key
- 23412
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 loss of engine power due to the separation of the number one engine cylinder. A factor was the unsuitable terrain.
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 a forced landing due to loss of engine power the airplane struck a tree with the right wing. Following the tree strike the airplane yawed and slowed down. Initial ground contact was with the right wing, this caused the airplane to rotate clockwise, resulting in the landing gear collapsing. An inspection of the airplane revealed that the number 1 cylinder had failed and separated from the engine.
Aircraft
- Registration
- N4979X
- Reported as
- Ayres S2R
- Category
- Airplane
- Serial number
- 5024R
- Airframe hours
- 11,611
- Engine
- P&W R-1340-AN-1, 600 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Aerial application · Part 137
- Operator
- Dirty Bird, Inc.
- Registered owner
- Dirty Bird, Inc.
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- Annual · March 31, 1992 · 289 hours before
- Departed
- NONE
- Destination
- NONE
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
- 67
- 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
- 13,000 total · 5,000 in this make and model · 12,500 as pilot in command · 150 in the last 90 days · 100 in the last 30 days · 9 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 21° at 6 knots
- Visibility
- 5 statute miles
- Lowest ceiling
- None
- Temperature
- 90 °F, dew point 73 °F
- Altimeter
- 30.00 inHg
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.