Service difficulty report · Shaft · Dhav DHC8103

Difficulty date
August 2, 2000
Submitted
January 19, 2001
Operation
General aviation
Make and model
Dhav DHC8103
Part
Shaft
Part number
82710016003
Condition
Broken
Location
Rt Rudder Pedal
Component
Rud.Pedal Shaft
Stage of operation
TX
How discovered
O
Nature of condition
O
Precautionary procedure
D

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

(CAN) AFFECTED PART RUDDER PEDAL SHAFT ASSY (WELDED) P/N 8270016-003. DURING BRAKING FOR FULL STOP ON TARMAC, R/H RUDDER PEDAL ASSEMBLY P/N 82710016-003 FAILED ON CAPTAINS PEDALS. INSPECTION REVEALED A BROKEN ARM ON THE RUDDER PEDAL SHAFT ASSY. DETAIL ISPECTION SHOWED THAT A CRACK IN THE WELD HAD PROPAGATED UNTIL TOTAL SEPARATION OF THE ARM FROM THE SHAFT. A PART OF THE WELD INDICATED THAT THIS CRACK STARTED A LONG TIME AGO SINCE HALF OF THE CRACK SURFACE LENGTH HAD EVIDENCE OF RUST. WE HAVE INITIATED A ONE TIME BORESCOPE INSPECTION ON ALL OUR A/C, WHICH WE EXPECT TO COMPLETE WITHIN AUGUST 10. THIS ALSO IS REPORTED TO THE NORWEGIAN CAA. KARE PEDERSON (DIRECTOR ENG. DEPT.)