- Date
- May 4, 2017, 14:00 local (19:00 UTC)
- Place
- Tahoka, TX
- Injuries
- 1 minor
- Damage
- Destroyed
- Phase of flight
- Takeoff
- Aircraft
- N144HFAir Tractor AT 502
- Defining event
- Takeoff: Loss of engine power (partial)
- Weather
- Visual (VMC) · Day
- Status
- Completed · report April 13, 2020
- Report
- Approved by Office Director
- NTSB office
- Central Region
- Parties
- FAA FSDO
- FAA report
- 20170504004119A
- Case key
- 95200
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 partial loss of engine power during takeoff for reasons that could not be determined based on the available information.
Findings · 2
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Analysis
The commercial pilot of the aerial application flight reported that he had flown several flights in the morning and the airplane was operating normally. Before the final flight of the day, while the airplane was being loaded with product, he heard a noise, but all engine gauges appeared normal. He taxied down the runway and took off. About 30 ft above the ground, the airplane started making more noise and the engine was surging. The pilot attempted to add more power, but the engine did not respond. As the pilot was about to dump the chemical load, the airplane veered to the left and impacted the ground. After the pilot exited the airplane, a postcrash fire ensued. Detailed examination of the engine was not possible due to the severe fire damage.
Factual narrative
On May 4, 2017, about 1400 central daylight time, an Air Tractor AT-502B, N144HF, was destroyed by a post-crash fire following a partial loss of engine power after takeoff from the Bar-T Airport (2F4), near Tahoka, Texas. The commercial pilot sustained minor injuries. The aircraft registered to Wilmington Trust Company, Wilmington, Delaware, and operated by Plains Aerial Applications, Olton, Texas, under the provisions of Title 14 Code of Federal Regulations Part 137 as an aerial application flight. Visual meteorological conditions prevailed in the vicinity and no flight plan was filed. The flight originated from 2F4, Tahoka, Texas, and its intended destination was to a local field to apply chemicals. The pilot reported that he had flown several aerial application flights in the morning and the airplane was operating normally. Prior to the final flight of the day, while the airplane was being loaded with chemicals, he heard a noise, but all engine gauges appeared to indicate that everything was normal. He taxied down runway 35, applied power, and took off. The engine gauges indicated turbine inlet temperature of 8,000° and propeller RPM 2,200. About 30 feet above the ground, the airplane plane started making a noise and the engine was surging. The pilot attempted to add more power, but the engine was not responding, and he tried to keep the airplane flying. Just as the pilot was going to dump the chemical load, the airplane veered to the left and hit the ground. After the pilot exited the airplane, a post-crash fire ensued. A witness at the airport saw the airplane takeoff and fly about 1/2 way down the runway. He stated that the airplane touched down on its left wheel and became airborne again. He saw the airplane past the departure end of the runway and it was losing altitude. He then saw the left wing tilting down and the airplane impacted the ground. Detailed examination of the engine was not possible due to the severe fire damage. No additional information on the accident was available.
Aircraft
- Registration
- N144HF
- Reported as
- Air Tractor AT 502 (UNDESIGNAT)
- Category
- Airplane
- Serial number
- 502-0068
- Built
- 1989
- Airframe hours
- 11,090
- Engine
- P&W PT6-A-34AG, 650 horsepower, turbo prop
- Damage
- Destroyed
- Fire
- On-Ground
- Flight
- Aerial application · Part 137
- Operator
- Plains Aerial Applications
- Registered owner
- Wilmington Trust Co Trustee
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- Annual · May 30, 2016 · 300 hours before
- Departed
- 2F4 · Tahoka, TX
- Destination
- 2F4 · Tahoka, TX
- Airport
- 2F4 · T-Bar Airport, runway 35, 3,278 × 50 ft, asphalt
- Equipment
- Satellite tracking device, Stall warning system
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
- 57
- Injuries
- Minor
- Certificate
- Commercial
- Airplane ratings
- Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Without waivers/limitations
- Seat
- Single
- Restraint
- 4-point
- Flight hours
- 2,000 total · 300 in this make and model · 2 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 20° at 13 knots, gusting 23
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 70 °F, dew point 34 °F
- Altimeter
- 30.21 inHg
- Observed at
- LBB, 35 nm away
Docket · 4
The files NTSB released with the investigation on December 31, 2019, on NTSB’s docket system: statements, records, photos and specialists’ reports. 784 KB in all.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.