Aerospatiale SA-315B N29907

Summary

On 10 June 1984 at about 18:30 local time, a Aerospatiale SA-315B registered N29907 was involved in an accident near Salina, Utah, United States. 3 people were on board and nobody was injured. The aircraft was substantially damaged. No probable cause statement is available for this record.

Date

10 June 1984 at 18:30

Classification

Accident

Location

Salina, Utah, United States

Coordinates

38.9491, -111.8292

Aircraft

Aerospatiale SA-315B

Registration

N29907

Category

Helicopter

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Unknown

Phase of flight

Not recorded

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

DEN84LA175

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 ACFT WAS ON A MAINTENANCE CHECK FLT AFTER THE MAIN ROTOR SHAFT ASSEMBLY THRUST BEARING HAD BEEN REPLACED AFTER THE ACFT HAD YAWING PROBLEMS AND POPPING SOUNDS AT HIGH PITCH SETTINGS WHILE LIFTINGS LOADS. THE PLT TRIED TO DUPLICATE THE CONDITIONS FOR THE TEST AND AS COLLECTIVE PITCH WAS INCREASED A LOUD BANG WAS HEARD FROM THE TRANSMISSION AREA AND THE ACFT LOST POWER. THE ACFT DID NOT RESPOND TO THE CONTROLS, ACCODING TO THE PLT, WHEN HE TRIED TO KEEP THE ACFT LEVEL AND CONTROL THE RATE OF DESCENT. WHEN GROUND CONTACT WAS MADE THE ACFT BOUNCED AND ROLLED OVER. A TEARDOWN OF THE CLUTCHAND TRANSMISSION WAS ACCOMPLISHED AND THERE WAS NO EVIDENCE OF ANY MECHANICAL FAILURES OR MALFUNCTIONS.

Quoted verbatim from the NTSB record.