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NTSB Report

May 16, 2011 · Md Helicopter 369E · N4278T

Victoria, TX

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
May 16, 2011
Injury Outcomes
No injuries (4 uninjured)
Location
Victoria, TX
Aircraft
Md Helicopter 369E
Tail Number
N4278T
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CEN11LA339

Shortly after departure, the pilot observed the engine-out caution light and received an audible alarm. The pilot then saw the automatic re-ignition light illuminate. Since the engine appeared to be operating at a reduced power setting, the pilot elected to perform a run-on landing. During the landing, the helicopter encountered a ditch, and the tail rotor struck the ground. A postaccident examination of the helicopter found that the fuel control governor limit switch, located on the pilot's collective, was set near the minimum limit (low power setting). No other anomalies were found with the airframe. The engine was removed and run on a testing system with no defects noted. According to the helicopter manufacturer, the warnings and power reduction that the pilot observed were consistent with the position of the limit switch as found. Therefore, it is likely that the reduction in engine power resulted from the improper setting of the governor limit switch.

NTSB Probable Cause

The pilot’s failure to ensure that the governor limit switch was properly set, which resulted in reduced engine power.

Full Narrative

On May 16, 2011, about 1305 central daylight time, an MD Helicopters 369E, N4278T, was substantially damaged during a forced landing near Victoria, Texas. The commercial pilot and three passengers were not injured. The helicopter was registered to Wells Fargo Bank Northwest N/A Trustee and operated by a private individual under the provisions of 14 Code of Federal Regulations Part 91 as a personal flight. The helicopter's tailboom section sustained substantial damage. Visual meteorological conditions prevailed for the flight, which operated without a flight plan. The flight had departed the Victoria Regional Airport (KVCT), Victoria, Texas, about 1255, destined for the William P. Hobby Airport (KHOU), Houston, Texas. According to the pilot, after refueling, the helicopter departed for Houston. Approximately 5 minutes into the flight the pilot observed the engine out caution light and received an audible alarm. The pilot then saw the automatic re-ignition light illuminate. Since the engine appeared to operate at a reduced power setting, the pilot elected to perform a run-on landing, in an open area. Upon touchdown, the helicopter settled into uneven terrain and the tailboom contacted the rising terrain. Ground contact of the tail rotor stinger and tail rotor blades resulted in significant damage to the tailboom, tail rotor blades and tail rotor drive system. Damage to the helicopter and impact signatures were consistent with the helicopter landing with little to no forward movement. A postaccident examination found the fuel control governor switch located on the pilot's collective was set near the minimum limit. According to the helicopter manufacturer, along with reduced total engine power, the associated warning of a minimum governor setting would be an engine out caution light, audible warning, and re-ignition light illumination. Also found was the trim setting set to the full forward/nose down limit. The helicopter's engine was removed and sent to Rolls-Royce for a test run. The engine was started and produced rated power without anomalies. A follow-up interview with the pilot revealed a student helicopter pilot and had performed the pilot procedures through engine start. The commercial pilot then assumed control of the helicopter. The pilot added that during the loss of the engine power, he confirmed full throttle and activated the governor switch. He stated that he did not actuate the trim to the full nose forward position. The exact position of the switches at the time of the accident could not be determined.

Flight

Event TypeAccident
Event Time13:05 CDT
Nearest Airport0nm
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftMd Helicopter 369E
Tail NumberN4278T
Aircraft CategoryHeli
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeTurboshaft
Engine DetailsRolls Royce · 250-C20B · Turboshaft · 420
Seats4

People & Injuries

Injury SummaryNo injuries (4 uninjured)
Fatal0
Serious0
Minor0
Uninjured4
Total4
Crew 1Age 48 · Second Class · None

Conditions

ConditionsVMC
LightDaylight
WindCalm
Visibility10 sm
CeilingNone
Temperature / Dew Point48
Altimeter30.00 inHg
Observation Time17:51
Weather SourceWFAC

Appendix: Source Data