Hughes 500D N1107G

Summary

On 4 October 1990 at about 23:20 local time, a Hughes 500D registered N1107G was involved in an accident near Kennsington, Alaska, United States. 3 people were on board and one was seriously injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

4 October 1990 at 23:20

Classification

Accident

Location

Kennsington, Alaska, United States

Coordinates

58.5796, -134.7694

Aircraft

Hughes 500D

Registration

N1107G

Category

Helicopter

Engines

1

Operator

Not recorded

Operating rule

Part 135: Air Taxi & Commuter

Purpose of flight

Unknown

Phase of flight

Not recorded

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

ANC91FA001

1 person was seriously injured.

THE LOSS OF CONTROL DURING TAKEOFF DUE TO DYNAMIC ROLLOVER. CONTRIBUTING TO THE ACCIDENT WAS THE PILOT-IN-COMMAND'S SELECTION OF AN UNEVEN LANDING AREA.

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

Read the full NTSB narrative

THE PILOT-IN-COMMAND WAS UNABLE TO FIND A FLAT SPOT TO SET THE HELICOPTER ON TO PICK UP HIS PASSENGERS. HE NOSED THE HELICOPTER INTO THE SIDE OF THE MOUNTAIN AND MAINTAINED THE AFT PORTION OF THE SKIDS AT A HOVER. THE PASSENGERS LOADED THEMSELVES AND WERE STRAPPED IN WHEN THE PILOT BEGAN HIS TAKEOFF. HE APPLIED POWER AND THE HELICOPTER BEGAN SETTLING AFT. HE CONTINUED TO APPLY POWER AND THE HELICOPTER ROLLED OVER ONTO ITS LEFT SIDE AND TURNED 90 DEGREES TO ITS LEFT. THE PILOT DID NOT RECALL HEARING AN ENGINE-OUT WARNING AND THE CIRCUIT BREAKER WAS FOUND IN THE OUT POSITION. EXAMINATION OF THE HELICOPTER AND TEST RUN OF THE ENGINE SHOWED NO REASON FOR A LOSS OF ENGINE POWER OR MECHANICAL FAILURE. THE TERRAIN WAS UNEVEN AND VERY ROCKY.

Quoted verbatim from the NTSB record.