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NTSB Report
July 15, 1984 · Mbb BO-105C · N105CP
Rehobeth, MA
Overview
Report Status
Preliminary report
Event Type
Accident
Date
July 15, 1984
Injury Outcomes
4 injuries (2 fatalities, 2 serious injuries)
Location
Rehobeth, MA
Aircraft
Mbb BO-105C
Tail Number
N105CP
Operator
Ems
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
NYC84FA240
THE MESSERSCHMITT-BLOHM-BOELKOW BO-105C WAS ON AN AIR AMBULANCE FLT WITH A PLT, 2 ADDITIONAL CREWMEMBERS (DOCTOR & NURSE) & A PASSENGER (PATIENT) ON BOARD. DURING FLT, THE PLT RADIOED THAT HE HAD LOST POWER IN 1 ENG, THEN ABOUT 14 SEC LATER, HE RADIOED THAT THE OTHER ENG HAD ALSO LOST POWER. DURING A FORCED LANDING/AUTOROTATION TO A ROAD AT NIGHT, THE HELICOPTER COLLIDED WITH POWER LINES & CRASHED. NO FUEL WAS FOUND IN THE RIGHT SUPPLY TANK & ONLY ABOUT 1 GAL OF FUEL WAS FOUND IN THE LEFT SUPPLY TANK. THE MAIN TANK HAD 15.4 GAL REMAINING, BUT THE RESPECTIVE FUEL BOOST PUMP SWITCHES WERE FOUND IN THE 'OFF' POSITION. THE REAR MAIN FUEL TANK HAD ONLY SLIGHTLY OVER 1 GAL REMAINING. ALSO, AN ELECTRICAL WIRE IN THE LOW FUEL WARNING CIRCUIT WAS NOT CONNECTED. THE FUEL SUPPLY TO EACH ENG IS FROM THE FUEL SUPPLY TANKS, WHICH ARE INDEPENDENT OF EACH OTHER.
Full Narrative
THE MESSERSCHMITT-BLOHM-BOELKOW BO-105C WAS ON AN AIR AMBULANCE FLT WITH A PLT, 2 ADDITIONAL CREWMEMBERS (DOCTOR & NURSE) & A PASSENGER (PATIENT) ON BOARD. DURING FLT, THE PLT RADIOED THAT HE HAD LOST POWER IN 1 ENG, THEN ABOUT 14 SEC LATER, HE RADIOED THAT THE OTHER ENG HAD ALSO LOST POWER. DURING A FORCED LANDING/AUTOROTATION TO A ROAD AT NIGHT, THE HELICOPTER COLLIDED WITH POWER LINES & CRASHED. NO FUEL WAS FOUND IN THE RIGHT SUPPLY TANK & ONLY ABOUT 1 GAL OF FUEL WAS FOUND IN THE LEFT SUPPLY TANK. THE MAIN TANK HAD 15.4 GAL REMAINING, BUT THE RESPECTIVE FUEL BOOST PUMP SWITCHES WERE FOUND IN THE 'OFF' POSITION. THE REAR MAIN FUEL TANK HAD ONLY SLIGHTLY OVER 1 GAL REMAINING. ALSO, AN ELECTRICAL WIRE IN THE LOW FUEL WARNING CIRCUIT WAS NOT CONNECTED. THE FUEL SUPPLY TO EACH ENG IS FROM THE FUEL SUPPLY TANKS, WHICH ARE INDEPENDENT OF EACH OTHER.
Flight
Event TypeAccident
Event Time22:50 EDT
Nearest AirportMarthas Vineyard (0nm N)
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionIflt
Aircraft
AircraftMbb BO-105C
Tail NumberN105CP
Aircraft CategoryHeli
DamageDestroyed
OperatorEms
Operating RulePart 135
Engines2
Engine TypeTurboshaft
Engine DetailsAllison · 250-C20B · Turboshaft · 420
Seats4
People & Injuries
Injury Summary4 injuries (2 fatalities, 2 serious injuries)
Fatal2
Serious2
Minor0
Uninjured0
Total4
Crew 1Age 35 · First Class
Conditions
ConditionsVMC
LightBright Night
Wind260° @ 9 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point64 F
Altimeter30.00 inHg
Observation Time23:00