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NTSB Report
April 15, 1990 · Hughes 369HS · N9138F
Junction, TX
Overview
Report Status
Probable Cause
Event Type
Accident
Date
April 15, 1990
Injury Outcomes
No injuries (2 uninjured)
Location
Junction, TX
Aircraft
Hughes 369HS
Tail Number
N9138F
Operator
Neveri
Injuries
None
Aircraft Damage
Substantial
NTSB Number
FTW90LA095
The aircraft landed hard and rolled over during a forced landing after an engine flameout and autorotation. The pilot had flight planned the ferry flight for a distance of 162 nm instead of the actual 258 nm. No weather briefing was obtained prior to departure. During the flight he encountered fog and low ceilings which required a precautionary landing. After the fog cleared, he took off, flew around for 20 minutes, and proceeded on course. However, the pilot encountered head winds and was forced to stop and add fuel at local ranches twice. At the first, he fueled with a mixture of diesel and autogas and at the second he fueled with autogas only. After takeoff from the second refueling site, the engine flamed out at about 200' AGL. Fuel samples taken from the aircraft were found to be 10% Jet-A and 90% autogas, not the 2:1 ratio of Jet-A autogas specified in the engine maintenance manual.
NTSB Probable Cause
THE PILOT IN COMMAND'S INADEQUATE EXECUTION OF THE AUTOROTATION FOLLOWING A ENGINE FAILURE WHICH RESULTED FROM HIS FAILURE TO REFUEL THE AIRCRAFT WITH THE PROPER GRADE OF FUEL WHEN HE RAN SHORT DURING THE FLIGHT.
Full Narrative
THE AIRCRAFT LANDED HARD AND ROLLED OVER DURING A FORCED LANDING AFTER AN ENGINE FLAMEOUT AND AUTOROTATION. THE PILOT HAD FLIGHT PLANNED THE FERRY FLIGHT FOR A DISTANCE OF 162 NM INSTEAD OF THE ACTUAL 258 NM. NO WEATHER BRIEFING WAS OBTAINED PRIOR TO DEPARTURE. DURING THE FLIGHT HE ENCOUNTERED FOG AND LOW CEILINGS WHICH REQUIRED A PRECAUTIONARY LANDING. AFTER THE FOG CLEARED, HE TOOK OFF, FLEW AROUND FOR 20 MINUTES, AND PROCEEDED ON COURSE. HOWEVER, THE PILOT ENCOUNTERED HEAD WINDS AND WAS FORCED TO STOP AND ADD FUEL AT LOCAL RANCHES TWICE. AT THE FIRST, HE FUELED WITH A MIXTURE OF DIESEL AND AUTOGAS AND AT THE SECOND HE FUELED WITH AUTOGAS ONLY. AFTER TAKEOFF FROM THE SECOND REFUELING SITE, THE ENGINE FLAMED OUT AT ABOUT 200' AGL. FUEL SAMPLES TAKEN FROM THE AIRCRAFT WERE FOUND TO BE 10% JET-A AND 90% AUTOGAS, NOT THE 2:1 RATIO OF JET-A AUTOGAS SPECIFIED IN THE ENGINE MAINTENANCE MANUAL.
Flight
Event TypeAccident
Event Time16:05 CDT
Nearest AirportPRIVATE (0nm N)
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftHughes 369HS
Tail NumberN9138F
Aircraft CategoryHeli
DamageSubstantial
OperatorNeveri
Operating RulePart 91
Engines1
Engine TypeTurboshaft
Engine DetailsAllison · 250-C20 · Turboshaft · 460
Seats4
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 35 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind270° @ 13 kt
Visibility20 sm
CeilingNone
Temperature / Dew Point68 F / 0 C
Altimeter0
Weather SourcePILO