CEN17CA120

NTSB accident investigation · Aero Commander S2R · Fairmont, OK · March 2, 2017

Accident · Serious injuriesData collectionFinal report
Date
March 2, 2017, 14:50 local (20:50 UTC)
Place
Fairmont, OK
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N1755SAero Commander S2R
Defining event
Maneuvering-low-alt flying: Low altitude operation/event
Weather
Visual (VMC) · Day
Status
Completed · report May 15, 2017
Report
Approved by Office Director
NTSB office
Central Region
Parties
Flight Standards District Office
FAA report
20170302001949A
Case key
94825

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The pilot’s failure to maintain clearance from a power line while conducting agricultural spray operations.

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.

Object/animal/substance: wireEnvironmental issues › Physical environment · Effect on operationAero Commander S2R: 2 casesAll aircraft: 588 casesProbable cause

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 pilot stated that he was conducting spray operations to a pasture with power lines on its north border. As the pilot approached the pasture from the north on his fourth pass, he intended to descend after flying past the second of two cables. The pilot initiated a descent, but the airplane struck the second cable. The airplane subsequently impacted the ground and a postimpact fire ensued. Following the accident, the pilot stated that he misidentified the first cable as the second cable.

Factual narrative

The pilot stated he was conducting spray operations to a pasture with power lines on its north border. As the pilot approached the pasture from the north on his fourth pass, he intended to descend after flying past the second of two cables. The pilot initiated a descent, but the airplane struck the second cable. The airplane subsequently impacted the ground and a post impact fire ensued. Following the accident, the pilot stated that he misidentified the first cable as the second cable.

Aircraft

Registration
N1755S
Reported as
Aero Commander S2R (UNDESIGNAT)
Category
Airplane
Serial number
1455R
Built
1968
Airframe hours
8,123
Engine
Pratt and Whitney R1340-53H1-G, 600 horsepower, reciprocating
Damage
Substantial damage
Fire
On-Ground
Flight
Aerial application · Part 137
Operator
Carson Flying Service Inc
Registered owner
Carson Flying Service Inc
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · February 2, 2017
Departed
PRI · Breckenridge, OK
Destination
PRI · Breckenridge, OK
Equipment
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
69
Injuries
Serious
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Waiver time limited special
Last flight review
April 15, 2016
Seat
Single
Restraint
3-point
Flight hours
17,036 total · 9,406 in this make and model · 16,949 as pilot in command · 30 in the last 90 days · 5 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
220° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
64 °F, dew point 18 °F
Altimeter
30.40 inHg
Observed at
KWDG, 4 nm away

Docket · 1

The files NTSB released with the investigation on April 20, 2017, on NTSB’s docket system: statements, records, photos and specialists’ reports. 794 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.