Aerospatiale SA 315B N90706

Summary

On 24 May 1983 at about 19:55 local time, a Aerospatiale SA 315B registered N90706 was involved in an accident near Fillmore, Utah, United States. One person was on board and nobody was injured. The aircraft was substantially damaged. No probable cause statement is available for this record.

Date

24 May 1983 at 19:55

Classification

Accident

Location

Fillmore, Utah, United States

Coordinates

38.9599, -112.3893

Aircraft

Aerospatiale SA 315B

Registration

N90706

Category

Helicopter

Engines

1

Operator

Not recorded

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

DEN83LA118

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

WHILE ENGAGED IN SEISMIL WORK, THE PLT WAS CONTACTED BY RADIO & WAS ASKED TO ASSIST IN FREEING 2 CREW TRUCKS THAT HAD GOTTEN STUCK IN SAND DUNES. HE DECIDED TO ASSIST SINCE THE STUCK TRUCKS WERE DELAYING THE ENTIRE OPERATION. HE PLANNED TO PARTIALLY RAISE & PULL ONE END OF A TRUCK BY USING A 100 FT LONG LINE. THE HELICOPTER WAS FACING THE AFT END OF THE TRUCK & LONG LINE WAS AT ABOUT A 25-30 DEG ANGLE WHEN CONTINUOUS COLLECTIVE POWER WAS APPLIED. BY THE PLT. THE HELICOPTER THEN YAWED LEFT. THE PLT ATTEMPTED TO COMPENSATE WITH RIGHT ANTI-TORQUE PEDAL, REDUCED POWER & INDUCED RIGHT FORWARD CYCLIC. REPORTEDLY, THE HELICOPTER THEN TURNED 360 DEG & CAME TO REST ON ITS RIGHT SIDE. AT SOME POINT AFTER THE LEFT YAW, THE PLT RELEASED THE LONG LINE. THE COMPANY SAFETY OFFICER REPORTED THAT IF A 150 FT LONG LINE HAD BEEN USED, THERE WOULD HAVE BEEN A LARGER MARGIN FOR ERROR.

Quoted verbatim from the NTSB record.