CEN10LA455

NTSB accident investigation · Garlick OH-58A · Kountze, TX · July 31, 2010

Accident · Serious injuriesLimited investigationFinal report
Date
July 31, 2010, 12:15 local (17:15 UTC)
Place
Kountze, TX
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N305SDGarlick OH-58A
Defining event
Landing-flare/touchdown: Tailstrike
Weather
Visual (VMC) · Day
Status
Completed · report April 7, 2011
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA Flight Standards District Office
FAA report
20100731040539A
Case key
76823

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

A loss of engine power due to fuel exhaustion as a result of the pilot’s improper fuel planning.

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.

Fluids: fuelAircraft › Fluids/misc hardware · Fluid levelAll aircraft: 1,695 casesProbable cause
Action: incomplete actionPersonnel issues › Action/decision · PilotAll aircraft: 105 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 normally fueled the helicopter with 200 pounds of fuel each time he loaded chemicals, which equated to approximately 30 minutes of engine endurance. During the flight he did not recall the 20-minute fuel warning light or any other warning lights illuminating. After what the pilot thought was about 15 minutes into the flight, the helicopter yawed from side-to-side and the engine experienced a total loss of power. The pilot performed a quick-stop landing, severing the tail boom. Federal Aviation Administration inspectors found no fuel in the fuel line and only a half of a cup of fuel in the fuel filter. While the fuel tank had been compromised, there was no evidence of fuel in the surrounding area.

Factual narrative

On July 31, 2010, approximately 1200 central daylight time, a Garlick OH-58A, N305SD, operated by Coastal Air Service, Panama City, Florida, was substantially damaged when the pilot made a quick-stop landing after the engine lost power 10 miles east of Kountze, Texas. Visual meteorological conditions (VMC) prevailed at the time of the accident. The aerial application flight was being conducted under the provisions of 14 Code of Federal Regulations (CFR) Part 137 without a flight plan. The pilot, the sole occupant on board, received serious injuries. The local flight originated near Kountze, Texas, approximately 1130. The pilot reported the helicopter yawed from side-to-side, then the engine lost power. The pilot performed a quick-stop landing, severing the tail boom. The pilot told FAA inspectors that he normally fueled to 200 lbs each time he loaded chemicals, and this gave him approximately 30 minutes endurance. He did not recall the 20-minute fuel warning light or any other warning lights illuminating. He thought he had flown only 15 minutes. FAA inspectors found no fuel in the fuel line and only 1/2-cup of fuel in the fuel filter. The fuel tank had been compromised. An FAA inspector responded to the accident site and found the helicopter in an upright position. He could not access the fuel filler cap to see how much fuel was in the tank. There was no fuel in the line between the fuel control and the engine fuel nozzle. When the main fuel filter was opened (and after letting the fuel filter drain back into the housing), less than 1/2-cup of fuel was noted. There was no fuel smell in the area.

Aircraft

Registration
N305SD
Reported as
Garlick OH-58A
Category
Helicopter
Serial number
70-15649
Airframe hours
6,636
Engine
Rolls Royce-Allison T-63A-720, 420 horsepower, turbo shaft
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Coastal Air Service
Registered owner
Coastal Air Service
Airworthiness certificate
Special, Restricted (Special)
Last inspection
100 hour · July 9, 2010 · 65 hours before
Departed
NONE · Kountze, TX

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
60
Injuries
Serious
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, With waivers/limitations
Last flight review
February 5, 2010
Seat
Right
Flight hours
17,483 total · 6,196 in this make and model · 17,421 as pilot in command · 108 in the last 90 days · 83 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
310° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
90 °F, dew point 75 °F
Altimeter
29.94 inHg
Observed at
BPT

Docket · 4

The files NTSB released with the investigation on November 2, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 4.3 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.