Hughes 369D N1106Z

Summary

On 26 November 1990 at about 15:30 local time, a Hughes 369D registered N1106Z, operated by Temesco Helicopters Inc, was involved in an accident near Mulina, Oregon, United States. One person was on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

26 November 1990 at 15:30

Classification

Accident

Location

Mulina, Oregon, United States

Nearest airport

None

Coordinates

45.1992, -122.5407

Aircraft

Hughes 369D

Registration

N1106Z

Category

Helicopter

Engines

1

Operator

Temesco Helicopters Inc

Operating rule

Part 133: Rotorcraft Ext. Load

Purpose of flight

Other Work Use

Phase of flight

Not recorded

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

SEA91LA023

Nobody was injured.

IN-FLIGHT COLLISION WITH A REBOUNDING LONG-LINE, WHICH CAUSED MAIN-ROTOR RPM DECAY AND TAIL-BOOM SEPARATION, COMPROMISING THE PILOT'S ABILITY TO SUCCESSFULLY ACCOMPLISH AN ATTEMPTED AUTOROTATION.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

THE HUGHES 369D HELICOPTER CRASHED WHILE CONDUCTING CHRISTMAS TREE EXTERNAL-LOAD OPERATIONS WHEN A CHOKER ATTACHED TO A LONG- LINE EXTERNAL HOOK SNAGGED ON AN UNIDENTIFIED OBJECT AND SNAPPED THE REMOTE HOOK INTO THE MAIN ROTOR SYSTEM. ACCORDING TO THE PILOT, A POWER-ON AUTOROTATION WAS ATTEMPTED, BUT DUE TO LOW ROTOR RPM, THE MAIN BLADES CHOPPED OFF THE TAIL BOOM.

Quoted verbatim from the NTSB record.