Aerospatiale SA341G N401S

Summary

On 4 October 1988 at about 17:00 local time, a Aerospatiale SA341G registered N401S was involved in an accident near Fields, Oregon, United States. 4 people were on board and nobody was injured. The aircraft was substantially damaged. No probable cause statement is available for this record.

Date

4 October 1988 at 17:00

Classification

Accident

Location

Fields, Oregon, United States

Coordinates

42.1704, -118.3598

Aircraft

Aerospatiale SA341G

Registration

N401S

Category

Helicopter

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Denio → Unknown

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

SEA89LA007

Nobody was injured.

The NTSB has not published a probable cause for this record. No probable cause statement is present in the source data.

Nothing about the cause is stated here that is not in the source record.

Read the full NTSB narrative

THE PLT RPRTD THAT AS HE WAS IN A SLOW DESCENDING TURN TO THE LEFT AT ABOUT 20 KTS (TRANSLATIONAL LIFT). THE HELICOPTER SUDDENLY ROTATED TO THE LEFT WITHOUT WARNING. HE ESTIMATED THAT THIS OCCURRED AT ABOUT 30 FT AGL. HE APPLIED RIGHT PEDAL & THE ROTATION STOPPED IN A SLIGHT NOSE DOWN ATTITUDE AFTER ABOUT 2 TURNS. ALSO, THE PLT NOTICED THAT THE ENG WAS NOT PROVIDING POWER; HE PRESUMED THE FUEL LIMITER HAD RESTRICTED THE FLOW OF FUEL TO THE ENG, CAUSING A REDUCTION OF POWER. BEFORE TOUCHDOWN, THE PLT APPLIED COLLECTIVE TO CUSHION THE LANDING, BUT THE RIGHT SKID WAS DAMAGED & THE MAIN ROTOR BLADES FLEXED DOWNWARD & CONTACTED THE TAIL BOOM. THE DENSITY ALT WAS COMPUTED TO BE NEAR 6000 FT.

Quoted verbatim from the NTSB record.