19920728027929A

Accident · Substantial damage

FAA accident report · Bell UH1B · Hayfork, CA · July 28, 1992

Date
July 28, 1992 · 08:00 local
Place
Hayfork, CA
Phase of flight
Fcd/Prec Ldg From Cruise
Operating rules
Rotorcraft external load (Part 133)
Operator
WYFL
Damage
Substantial damage
Aircraft
N89NW
NTSB investigation
NTSBLAX92LA319
Reported as
Bell UH1B
Reported engine
Lycoming T53L11D
Fatal injuries
0
Pilot’s flight hours
13,000 total3,000 in this make and model300 in the last 90 days

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.

Loud bang trailing long line. Autorotated into trees. Main rotor drive shaft failed. Old o ring used in maintenance

As the FAA filed it

LOUD BANG TRAILING LONG LINE. AUTOROTATED INTO TREES. MAIN ROTOR DRIVE SHAFT FAILED. OLD O RING USED IN MAINTENANCE

NTSB investigation

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