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NTSB Report
December 16, 1983 · Hiller UH-12A · N8108H
Van Nuys, CA
Overview
Report Status
Preliminary report
Event Type
Accident
Date
December 16, 1983
Injury Outcomes
No injuries (2 uninjured)
Location
Van Nuys, CA
Aircraft
Hiller UH-12A
Tail Number
N8108H
Injuries
None
Aircraft Damage
Substantial
NTSB Number
LAX84FA106
THE INSTRUCTOR PLT (CFI) STATED THAT THE ENG QUIT 2 TIMES AFTER HE REFUELED THE HELICOPTER. HE THEN DRAINED A QUANTITY OF WATER FROM THE FUEL GASCOLATOR & RESTARTED THE HELICOPTER. AFTER THAT HE AIR TAXIED THE HELICOPTER TO THE FLT SCHOOL WHERE, WITHOUT SHUTTING DOWN THE ENG, HIS STUDENT BOARDED. DURING TAKEOFF, THE ENG LOST POWER AS THEY WERE CLIMBING THRU ABOUT 300 FT AGL. THE CFI EXECUTED A 180 DEG TURN & AUTOROTATED TO AN EMERGENCY LANDING ON A FLAT ROOFED BUILDING. DURING THE LANDING, THE MAIN ROTOR BLADES HIT THE TAIL BOOM & THE FRONT CROSS TUBE OF THE LANDING GEAR WAS BENT. DURING AN EXAM OF THE HELICOPTER, ABOUT 1/2 GAL OF WATER WAS DRAINED FROM THE SYS & ABOUT 8 OUNCES OF WATER WAS FOUND IN THE CARBURETOR. THE FUEL TRUCK WAS CHECKED & NO EVIDENCE OF WATER WAS FOUND.
Full Narrative
THE INSTRUCTOR PLT (CFI) STATED THAT THE ENG QUIT 2 TIMES AFTER HE REFUELED THE HELICOPTER. HE THEN DRAINED A QUANTITY OF WATER FROM THE FUEL GASCOLATOR & RESTARTED THE HELICOPTER. AFTER THAT HE AIR TAXIED THE HELICOPTER TO THE FLT SCHOOL WHERE, WITHOUT SHUTTING DOWN THE ENG, HIS STUDENT BOARDED. DURING TAKEOFF, THE ENG LOST POWER AS THEY WERE CLIMBING THRU ABOUT 300 FT AGL. THE CFI EXECUTED A 180 DEG TURN & AUTOROTATED TO AN EMERGENCY LANDING ON A FLAT ROOFED BUILDING. DURING THE LANDING, THE MAIN ROTOR BLADES HIT THE TAIL BOOM & THE FRONT CROSS TUBE OF THE LANDING GEAR WAS BENT. DURING AN EXAM OF THE HELICOPTER, ABOUT 1/2 GAL OF WATER WAS DRAINED FROM THE SYS & ABOUT 8 OUNCES OF WATER WAS FOUND IN THE CARBURETOR. THE FUEL TRUCK WAS CHECKED & NO EVIDENCE OF WATER WAS FOUND.
Flight
Event TypeAccident
Event Time11:22 PST
Nearest Airport1nm E
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftHiller UH-12A
Tail NumberN8108H
Aircraft CategoryHeli
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsFranklin · 6V-335-B · Reciprocating · 210
Seats3
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 30 · First Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility3 sm
CeilingNone
Temperature / Dew Point63 F / 52
Altimeter31.00 inHg
Observation Time19:27
Weather SourceWFAC