SDR CA991027037

Service difficulty report · Harness · Skrsky S61N

Difficulty date: October 4, 1999
Submitted: March 26, 2000
Operation: Air carrier
Make and model: Skrsky S61N
Engine: Ge CT581401
System (JASC): 3422 · Directional Gyro and Indicating System
Part: Harness
Condition: Misrouted
Location: Cockpit
Component: Sperryflt · 258719343
Stage of operation: NR
Nature of condition: B, W
Precautionary procedure: A

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

What was found

(CAN) WIRE CHAFING BETWEEN THE 26 VAC BUNDLE FOR INSTRUMENT LIGHTS AND COMPASS SYSTEM WIRE BUNDLES RESULTED IN A ELECTRICAL SHORT AND SUBSEQUENT LOSS OF PILOT INSTRUMENT LIGHTS AND THE C-14 GYRO SYCRONIZER FOR THE COMPASS SYSTEMS. INVESTIGATION REVEALED THAT WIRE BUNDLES WERE NOT ROUTED CORRECTLY AND WERE THUS RE-ROUTED CORRECTLY. A NEW C-14 GYRO WAS INSTALLED AND ALL SYSTEMS ARE SERVICEABLE.