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NTSB Report
November 19, 1987 · Hughes 269C · N11079
Grand Forks, ND
Overview
Report Status
Preliminary report
Event Type
Accident
Date
November 19, 1987
Injury Outcomes
No injuries (2 uninjured)
Location
Grand Forks, ND
Aircraft
Hughes 269C
Tail Number
N11079
Operator
University of North Dakota
Injuries
None
Aircraft Damage
Substantial
NTSB Number
DEN88LA025
THE CFI WAS INSTRUCTING THE PVT RATED DUAL STUDENT IN SIMULATED FORCED LANDINGS. DURING THE POWER RECOVERY FOLLOWING A PRACTICE AUTOROTATION, THE ENGINE FAILED TO REGAIN RPM AT FULL THROTTLE. DURING THE FORCED LANDING, THE HELICOPTER NOSED OVER AT TOUCHDOWN AND THE MAIN ROTOR STRUCK THE TERRAIN. A POST ACCIDENT ENGINE RUN PRODUCED FULL RATED POWER UNDER TEST CELL CONDITIONS. THE ENGINE INSPECTION DID NOT REVEAL EVIDENCE TO EXPLAIN THE REPORTED FAILURE OF THE ENGINE TO RESPOND.
Full Narrative
THE CFI WAS INSTRUCTING THE PVT RATED DUAL STUDENT IN SIMULATED FORCED LANDINGS. DURING THE POWER RECOVERY FOLLOWING A PRACTICE AUTOROTATION, THE ENGINE FAILED TO REGAIN RPM AT FULL THROTTLE. DURING THE FORCED LANDING, THE HELICOPTER NOSED OVER AT TOUCHDOWN AND THE MAIN ROTOR STRUCK THE TERRAIN. A POST ACCIDENT ENGINE RUN PRODUCED FULL RATED POWER UNDER TEST CELL CONDITIONS. THE ENGINE INSPECTION DID NOT REVEAL EVIDENCE TO EXPLAIN THE REPORTED FAILURE OF THE ENGINE TO RESPOND.
Flight
Event TypeAccident
Event Time10:15 CST
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftHughes 269C
Tail NumberN11079
Aircraft CategoryHeli
DamageSubstantial
OperatorUniversity of North Dakota
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · HIO-360-D1A · Reciprocating · 190
Seats3
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 29 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind310° @ 9 kt
Visibility20 sm
CeilingBroken clouds 3200 ft
Temperature / Dew Point30 C / 0 C
Altimeter30.00 inHg
Weather SourcePILO