19880102000119A

Accident · Substantial damage

FAA accident report · Hiller UH-12E · Vernal, UT · January 2, 1988

Date: January 2, 1988 · 15:30 local
Place: Vernal, UT
Phase of flight: Pwr Off Run Land (Autorotation
Operating rules: General operating rules (Part 91)
Damage: Substantial damage
Aircraft: N400AH
NTSB investigation: NTSBDEN88LA046
Reported as: Hiller UH12E
Reported engine: Lycoming TIVO540A2A
People aboard: 3
Fatal injuries: 0
Pilot’s flight hours: 5,450 total5,100 in this make and model

N400AHRegistration cancelled Apr 22, 2003 · Hiller UH-12ES/N 1177 · Built 1975 Airframe modelHiller UH-12E Engine modelLycoming TI0-540 seriesTurbo-prop

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.

Engine quit en route. Made hard autorotation landing on a road. Connecting rod broken from engine overtemp operation

As the FAA filed it

ENGINE QUIT EN ROUTE.MADE HARD AUTOROTATION LANDING ON A ROAD. CONNECTING ROD BROKEN FROM ENGINE OVERTEMP OPERATION

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 DEN88LA046Accident · No injuriesLimited investigationFinal reportVernal, UTThe commercial plt and two passengers were surveying a road route in mountainous terrain. At cruise, the pilot noticed a drop in manifold pressure, followed by a loss of oil pressure. The plt reported that the engine quit. An autorotation to a snow covered…Jan 2, 1988 · Substantial damage

Other reports on N400AH · 4

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

Accident 19851101055799AFcd/Prec Ldg From Cruise · Vernal, UTTurbocharger failed, impeller lodged on shroud after retaining nut backed out. Turbocharger installation on STC.Nov 1, 1985 · Substantial damage Accident 19830831045459APwr Off Run Land (Autorotation · Manning, NDLost engine power while pulling a long line with a high deck angle. Low fuel condition allowed fuel unporting.Aug 31, 1983 · Substantial damage Accident 19811117074319ALow Level Operations · Craig, COMade downwind pass while shooting coyote. RPM decayed, forced to land. Skid broke on hitting a root on landing.Nov 17, 1981 · Substantial damage Accident 19790724021779ALow Level Operations · Johnstown, COAg pilot conducting spraying operation exhausted fuel and crashed during spray run.Jul 24, 1979 · Substantial damage