DEN08LA105

NTSB accident investigation · Air Tractor AT-301A · Garwood, TX · June 19, 2008

Accident · No injuriesLimited investigationFinal report
Date
June 19, 2008, 11:00 local (16:00 UTC)
Place
Garwood, TX
Injuries
1 uninjured
Damage
Destroyed
Phase of flight
Initial climb
Aircraft
N3166HAir Tractor AT-301A
Defining event
Initial climb: Loss of engine power (partial)
Weather
Visual (VMC) · Day
Status
Completed · report October 21, 2010
Report
Approved by Office Director
Parties
FAA Flight Standards District Office
FAA report
20080619834719A
Case key
68267

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

A loss of engine power due to the total failure of the number 2 cylinder.

Findings · 3

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.

Terrain: rough terrainEnvironmental issues › Physical environment · Contributed to outcomeAir Tractor AT-301: 3 casesAll aircraft: 442 cases
Object/animal/substance: wall/barricadeEnvironmental issues › Physical environment · Contributed to outcomeAir Tractor AT-301: 1 caseAll aircraft: 29 cases

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

According to the pilot, he was taking off from a private airstrip with a full load of fertilizer when he "lost the number 2 cylinder." Due to the loss of engine power, during the ensuing forced landing the pilot was unable to keep the airplane from striking a levy. Both main landing gears, hopper, gate box, fertilizer spreader, and tailwheel assembly were torn off. The left wing tip was bent, and the engine mount was broken. An examination of the airplane revealed a fractured number 2 cylinder head. Flight control continuity was confirmed. No other anomalies were found.

Factual narrative

On June 19, 2008, approximately 1100 central daylight time, an Air Tractor AT-301A, N3166H, registered to and operated by ANF Air Service, Inc., and piloted by a commercial pilot, was substantially damaged when the it struck a levy and impacted terrain following a loss of power shortly after takeoff in Garwood, Texas. Visual meteorological conditions prevailed at the time of the accident. The aerial application flight was being conducted under the provisions of Title 14 Code of Federal Regulations Part 137 without a flight plan. The pilot, the sole occupant aboard, was not injured. The local flight was originating at the time of the accident. According to the pilot, he was taking off from a private airstrip with a full load of fertilizer when he "lost the number 2 cylinder." Due to the loss of engine power, during the ensuing forced landing the pilot was unable to keep the airplane from striking a levy. Both main landing gears, hopper, gate box, fertilizer spreader, and tailwheel assembly were torn off. The left wing tip was bent, and the engine mount was broken. An examination of the airplane revealed the broken number 2 cylinder head. Flight control continuity was confirmed. No other anomalies were found.

Aircraft

Registration
N3166H
Reported as
Air Tractor AT-301A
Category
Airplane
Serial number
301-0549
Airframe hours
8,455
Engine
Pratt & Whitney R-1340 AN1, 600 horsepower, reciprocating
Damage
Destroyed
Flight
Aerial application · Part 137
Registered owner
ANF Air Service, Inc.
Airworthiness certificate
Special, Restricted (Special)
Last inspection
100 hour · May 1, 2008 · 62 hours before
Departed
NONE · Garwood, TX
Destination
NONE
Airport
NONE · ANF Air Service, runway 18, 2,640 × 100 ft, gravel

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
61
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
March 1, 2008
Seat
Single
Flight hours
28,141 total · 5,209 in this make and model · 27,801 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
240° at 3 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
88 °F, dew point 72 °F
Altimeter
29.95 inHg
Observed at
HOU, 44 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 N3166H · 1

Matched to the same aircraft by N-number and date.