- Date
- August 22, 1998, 11:15 local (16:15 UTC)
- Place
- Holly Bluff, MS
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N10103Air Tractor 401
- Weather
- Visual (VMC) · Day
- Status
- Completed · report June 21, 2000
- Report
- Approved by Office Director
- FAA report
- 19980822029999A
- Case key
- 43744
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 malfunction of the carburetor which resulted in improper fuel flow to the engine.
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 reported that he had been flying about forty five minutes on this load of fuel, and estimated that he had in excess of one hour of fuel remaining. While on the first swath run climb out from a field, the engine lost power. The pilot also reported that as the engine lost power, black smoke was seen coming from the exhaust. According to the pilot, the only available emergency landing area was straight ahead. During the post-accident examination of the engine assembly, the engine was started, it ran roughly, and produced black smoke. Further examination disclosed that fuel pressure supplied by the engine driven fuel pump was not being maintained in the pressure carburetor. According to a local mechanic assisting in the examination, the loss of fuel pressure in the carburetor is normally associated with a defective needle assembly in the carburetor. According to the operator, the maintenance records showed that the engine assembly had accumulated 1150 hours of service since the last overhaul. The recommended time between engine overhauls is 1200 hours. The engine maintenance records also failed to show if the carburetor had been overhauled since the last engine overhaul.
Factual narrative
On August 22,1998, at 1115 central daylight time, an Air Tractor 401, N10103, collided with the ground, according to the pilot, during a forced landing near Holly Bluff, Mississippi. The aerial application flight was operated by Producers Flying Inc., under the provisions of Title 14 CFR Part 137 with no flight plan filed. A review of weather data from the nearest reporting facility disclosed that visual weather conditions prevailed at the time of the accident. The airplane received substantial damage. The commercial pilot was not injured. The aerial application flight departed Holly Bluff, Mississippi, at 1030.
The pilot reported that he had been flying about forty five minutes on this load of fuel, and estimated that he had in excess of one hour of fuel remaining. While on the first swath run climb out from a field, the engine lost power. The pilot also reported that as the engine lost power, black smoke was seen coming from the exhaust. According to the pilot, the only available emergency landing area was straight ahead.
During the post-accident examination of the engine assembly, the engine was started, it ran roughly, and produced black smoke. Further examination disclosed that fuel pressure supplied by the engine driven fuel pump was not being maintained in the pressure carburetor. According to a local mechanic assisting in the examination, the loss of fuel pressure in the carburetor is normally associated with a defective needle assembly in the carburetor.
According to the operator, the maintenance records showed that the engine assembly had accumulated 1150 hours of service since the last overhaul. The recommended time between engine overhauls is 1200 hours. The engine maintenance records also failed to show if the carburetor had been overhauled since the last engine overhaul.
Aircraft
- Registration
- N10103
- Reported as
- Air Tractor 401
- Category
- Airplane
- Serial number
- 401-0709
- Airframe hours
- 4,712
- Engine
- P&W R-1340, 600 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Aerial application · Part 137
- Registered owner
- Producers Flying Inc,.
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- Annual · March 21, 1998 · 383 hours before
- Departed
- 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
- 38
- Certificate
- Commercial
- Airplane ratings
- Single-engine land
- Medical
- Class 2, Valid Medical--no waivers/lim.
- Seat
- Front
- Flight hours
- 5,050 total · 175 in this make and model · 300 in the last 90 days
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Variable at 6 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 90 °F, dew point 61 °F
- Altimeter
- 30.00 inHg
- Observed at
- JAN, 30 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 N10103 · 1
Matched to the same aircraft by N-number and date.