19931112042801A

Accident · Substantial damage

FAA accident report · Bell UH1B · Bend, WA · November 12, 1993

Date
November 12, 1993 · 11:30 local
Place
Bend, WA
Phase of flight
Pwr Off Vert Land/Autorotate
Operating rules
Rotorcraft external load (Part 133)
Operator
WYFL
Collision
Midair collision, first aircraft
Damage
Substantial damage
Aircraft
N91NW
NTSB investigation
NTSBSEA94LA030
Reported as
Bell UH1B
Reported engine
Lycoming T53L11D
Fatal injuries
0
Pilot’s flight hours
11,800 total1,500 in this make and model

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.

Grinding noise. Uncontrolled right spin. Jettisoned load. Autorotated into trees. Overstressed gear box fractures.

As the FAA filed it

GRINDING NOISE. UNCONTROLLED RIGHT SPIN. JETTISONED LOAD. AUTOROTATED INTO TREES. OVERSTRESSED GEAR BOX FRACTURES.

NTSB investigation

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