- Date
- June 10, 1990, 06:10 local (11:10 UTC)
- Place
- Bastrop, LA
- Injuries
- 1 minor
- Damage
- Destroyed
- Phase of flight
- Maneuvering
- Aircraft
- N6572Grumman G-164A
- Weather
- Visual (VMC) · Day
- Status
- Completed · report September 21, 1992
- Report
- Approved by Office Director
- FAA report
- 19900610019549A
- Case key
- 22988
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 pilot's improper engine procedures during ground operations and prior to takeoff which resulted in fouled spark plugs.
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 aerial application pilot stated that he was in a slow turn to the left looking for the flagman when the airplane 'began to fall.' He rolled out of the turn but was unable to maintain flight. Full power was added and the pilot unsuccessfully attempted to dump the load of chemical. The forced landing in soft muddy terrain resulted in a noseover. The owner of the airplane reported that the pilot was on the ground approximately 20 minutes with the engine idling, and that during takeoff the engine did not develop full power. He further stated that he had cautioned the pilot about clearing the engine before takeoff. The chemical dump lever was blocked by the improperly positioned pressure valve lever.
Aircraft
- Registration
- N6572
- Reported as
- Grumman G-164A
- Category
- Airplane
- Serial number
- 712
- Airframe hours
- 4,700
- Engine
- P&W R985-AN-1, 450 horsepower, reciprocating
- Damage
- Destroyed
- Flight
- Aerial application · Part 137
- Operator
- Leroy Robinson
- Registered owner
- Leroy Robinson
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- Annual · June 8, 1990 · 10 hours before
- Departed
- NONE
- Airport
- NONE, runway 27, 3,000 × 100 ft, dirt
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
- 32
- Certificate
- Commercial
- Airplane ratings
- Single-engine land
- Medical
- Class 2, Valid Medical--no waivers/lim.
- Seat
- Center
- Flight hours
- 1,200 total · 800 in this make and model · 250 in the last 90 days · 200 in the last 30 days · 15 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 40 statute miles
- Lowest ceiling
- None
- Temperature
- 75 °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.
Other investigations on N6572 · 2
Matched to the same aircraft by N-number and date.