- Date
- August 29, 2018, 13:23 local (18:23 UTC)
- Place
- Partridge, KS
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N3164KAir Tractor AT 301
- Defining event
- Enroute: Loss of engine power (total)
- Weather
- Visual (VMC) · Day
- Status
- Completed · report November 19, 2019
- Report
- Approved by Office Director
- NTSB office
- Central Region
- Parties
- FAA Flight Standards
- FAA report
- 20180829012519A
- Case key
- 98187
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 total loss of engine power for reasons that could not be determined based on the available evidence.
Findings · 1
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 reported that he had been flying for about 1 hour and was returning to the airport when the engine lost total power while the airplane was about 1,000 ft above ground level (agl). Although the engine momentarily regained power twice, for about 3 seconds each time when he used the manual fuel pump, the airplane continued to lose altitude. He attempted to land on a road but was unable to properly align the airplane's flightpath with the road. The airplane stalled about 20 ft agl, contacted the road, and bounced before coming to rest in an adjacent field, which resulted in substantial damage to the left wing. A postaccident engine examination did not reveal any evidence of preimpact mechanical malfunctions or failures that would have precluded normal operation.
Factual narrative
On August 29, 2018, about 1323 central daylight time, an Air Tractor AT-301 airplane, N3164K, was substantially damaged during a forced landing following a loss of engine power near Partridge, Kansas. The pilot was not injured. The airplane was registered to and operated by Ag Air Services Inc. as a Title 14 Code of Federal Regulations Part 137 aerial application flight. Day visual meteorological conditions prevailed. The flight was not operated on a flight plan. The local flight originated from the Hutchison Regional Airport (HUT) about 1220.The pilot reported that he had been flying for about 1 hour and was returning to the airport when the engine lost power. The airplane was about 1,000 ft above ground level (agl) at the time. He noted that the engine regained power momentarily twice – for about 3 seconds each time – when he used the manual fuel pump. However, the airplane continued to lose altitude and he abandoned further restart attempts to focus on the forced landing. He attempted to land on a road, but he was unable to properly align the airplane's flight path with the remaining altitude. The airplane aerodynamically stalled about 20 ft agl, contacted the road, and bounced before coming to rest in an adjacent agricultural field. The airplane sustained damage to the left wing. The operator recovered the airplane from the accident site. He stated that 29 gallons of fuel was drained from the airplane during recovery. A postrecovery engine examination performed by Federal Aviation Administration inspectors did not reveal any anomalies consistent with a preaccident failure or malfunction. The engine driven fuel pump was removed and tested. It operated normally when operated with an electric drill. The airframe fuel screens were intact and free of debris or sediment. The airplane was not equipped with an electric fuel pump. The only backup fuel pump was the manual pump.
Aircraft
- Registration
- N3164K
- Reported as
- Air Tractor AT 301 (No Series)
- Category
- Airplane
- Serial number
- 301-0535
- Built
- 1984
- Airframe hours
- 6,578.2
- Engine
- Pratt & Whitney R1340-AN1, 600 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Aerial application · Part 137
- Operator
- Ag Air Service Inc.
- Registered owner
- Phoenix Equipment LLC
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- Annual · March 20, 2018 · 200 hours before
- Departed
- HUT · Hutchinson, KS
- Destination
- HUT · Hutchinson, KS
- Airport
- HUT · Hutchinson Regional
- Equipment
- Stall warning system, Handheld GPS
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
- 24
- Injuries
- None
- Certificate
- Commercial
- Airplane ratings
- Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Without waivers/limitations
- Last flight review
- December 26, 2017
- Seat
- Single
- Restraint
- 4-point
- Flight hours
- 548 total · 208,215 in this make and model · 512 as pilot in command · 207 in the last 90 days · 105 in the last 30 days · 6 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Variable at 5 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 81 °F, dew point 64 °F
- Altimeter
- 30.09 inHg
- Observed at
- HUT, 12 nm away
Docket · 4
The files NTSB released with the investigation on April 5, 2019, on NTSB’s docket system: statements, records, photos and specialists’ reports. 4.2 MB 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.