19990616007139A

Accident · Destroyed

FAA accident report · Hiller UH-12C · Delphos, OH · June 16, 1999

Date: June 16, 1999
Place: Delphos, OH
Damage: Destroyed
Aircraft: N57CR
NTSB investigation: NTSBNYC99LA146
Reported as: Hiller UH12C

N57CRRegistration cancelled Jun 13, 2014 · Hiller UH-12CS/N 909 · Built 1956 Airframe modelHiller UH-12C Engine modelFranklin 6VS-335 seriesReciprocating

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

1956 Hiller-world helicopters UH-12C helicopter lost power, and the pilot auto-rotated the acft, the main rotor flexed on landing and severed the tail of the acft, other circumstances are unknown. (-23)pilot departed sidney, OH, enroute to defiance, OH., after engine change. Helicopter started to run rough and lost power approx. 25' AGL after executing an autorotation. Impact rotor flexed and severed the tail boom. Engine and accessory case cracked at impact also.

As the FAA filed it

1956 HILLER-WORLD HELICOPTERS UH-12C HELICOPTER LOST POWER, AND THE PILOT AUTO-ROTATED THE ACFT, THE MAIN ROTOR FLEXED ON LANDING AND SEVERED THE TAIL OF THE ACFT, OTHER CIRCUMSTANCES ARE UNKNOWN. (-23)PILOT DEPARTED SIDNEY, OH, ENROUTE TO DEFIANCE, OH., AFTER ENGINE CHANGE. HELICOPTER STARTED TO RUN ROUGH AND LOST POWER APPROX. 25' AGL AFTER EXECUTING AN AUTOROTATION. IMPACT ROTOR FLEXED AND SEVERED THE TAIL BOOM. ENGINE AND ACCESSORY CASE CRACKED AT IMPACT ALSO.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.

NTSB NYC99LA146Accident · No injuriesLimited investigationFinal reportDelphos, OHA blocked fuel line, from an unknown object, that resulted in fuel starvation, and total loss of engine power. A factor in the accident was the pilot's failure to maintain rotor rpm during the autorotation.Jun 16, 1999 · Substantial damage

Other reports on N57CR · 1

Matched to the same aircraft by N-number and date.

Accident 19810715042299AForced/Precautionary Landing · Burleson, TXEngine lost power after liftoff. Aborted. Helicopter rolled on impact. Fouled igniter. Engine gave prior warning.Jul 15, 1981 · Substantial damage