WPR13LA429

NTSB accident investigation · Texas Helicopter OH-13E/M74 · Santa Maria, CA · September 29, 2013

Accident · Minor injuriesLimited investigationFinal report
Date
September 29, 2013, 09:30 local (16:30 UTC)
Place
Santa Maria, CA
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N38113Texas Helicopter OH-13E/M74
Defining event
Maneuvering-low-alt flying: Low altitude operation/event
Weather
Visual (VMC) · Day
Status
Completed · report February 3, 2014
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
FAA
FAA report
20130929020249A
Case key
88153

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 inadequate monitoring of the environment and failure to maintain clearance from transmission wires during a low-altitude maneuver.

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 · Response/compensationTexas Helicopter OH-13E/M74: 1 caseAll aircraft: 588 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

The pilot reported that before he began his first aerial application run, he flew overhead to scout the designated field for hazards and noted a power line near the field. He stated that he had a "momentary lapse" during his first application pass and flew through the wires, which shattered the cabin's main Plexiglass bubble and struck the main rotor mast. Both push-pull flight control tubes were compromised just above the swashplate. The helicopter fell to the ground and came to rest upright on its landing skids. The pilot reported no preimpact mechanical malfunctions or failures with the helicopter that would have precluded normal operation.

Factual narrative

On September 29, 2013, about 0930 Pacific daylight time, a Texas Helicopter Corp OH-13/M74, N38113, was substantially damaged when it struck power transmission wires and impacted the ground near Santa Maria, California. The commercial pilot, the sole occupant, received minor injuries. R & S Crop Dusters, Inc., was operating the helicopter under the provisions of 14 Code of Federal Regulations Part 137. Visual meteorological conditions prevailed for the local aerial application flight, which had originated from a nearby staging area approximately 10 minutes before the accident. A flight plan had not been filed. The pilot reported that before he began his first application run, he flew overhead scouting the designated field for hazards and noted the power line. On his first pass, he had a "momentary lapse" and flew through the wires. The biggest wire shattered the cabin's main Plexiglass bubble and struck the main rotor mast. Both push-pull flight control tubes were compromised just above the swashplate. The helicopter fell to the ground and came to rest upright on its landing skids. The pilot reported no preimpact mechanical malfunctions or failures with the helicopter that would have precluded normal operation.

Aircraft

Registration
N38113
Reported as
Texas Helicopter OH-13E/M74
Category
Helicopter
Serial number
77-012
Built
1977
Airframe hours
6,315
Engine
Lycoming VO-435 SERIES, 260 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
R&S Crop Dusters Inc
Registered owner
R&S Crop Dusters Inc
Airworthiness certificate
Special, Restricted (Special)
Last inspection
100 hour · October 17, 2012

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
58
Injuries
Minor
Certificates
Private, Commercial
Airplane ratings
Single-engine land
Medical
Class 2, With waivers/limitations
Seat
Single
Flight hours
5,000 total · 2,500 in this make and model · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
72 °F, dew point 37 °F
Altimeter
30.07 inHg
Observed at
SMX, 6 nm away

Docket · 2

The files NTSB released with the investigation on November 25, 2013, on NTSB’s docket system: statements, records, photos and specialists’ reports. 309 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.

Other investigations on N38113 · 1

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