Service difficulty report · Control Cable · Dhav DHC3

Difficulty date
November 26, 1999
Submitted
January 19, 2001
Operation
Air carrier
Make and model
Dhav DHC3
Aircraft time
21,238 hours
Engine
Pwa S3H1G
Part
Control Cable
Part number
VALC3CF1995R
Condition
Frayed
Location
Rudder
Component
Rudder Control S
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

(CAN) DURING INSPECTION OF THE RUDDER CABLES, WE FOUND A FLAT SPOT WITH A COUPLE OF BROKEN STRANDS. THE CABLE WAS REMOVED FOR INSPECTION AND WAS FOUND SEVERLY FRAYED. CABLE WAS REPLACED. IT SHOULD BE NOTED THAT THIS PARTICULAR CABLE IS ONE OF THE NEW STAINLESS STEEL CABLES, AS OPPOSED TO THE ORIGINAL GALVINIZED TYPE CABLES WHICH WERE PREVIOUSLY USED. WE HAVE FOUND BECAUSE OF THEIR BRITTLENESS, DO NOT LAST NEAR AS LONG AND SUSPECT THIS CABLE WAS ONLY INSTALLED FOR 400-500 HOURS. UNLIKE THE GALVINIZED CABLES, WHICH YOU FIND ONE OR TWO STRANDS BROKEN AND LITTLE DAMAGE UPON REMOVAL. THE SS CABLES SEEM TO HAVE 1-2 STRANDS BROKEN ON THE OUTSIDE BUT ARE SEVERELY DAMAGED INTERNALLY ONCE REMOVED AND INSPECTED.