Service difficulty report · Bonding Strap · Gulstm GV

Difficulty date
October 19, 2012
Submitted
October 19, 2012
Operation
General aviation
Aircraft
N132SD
Make and model
Gulstm GV
Aircraft serial
537
Aircraft time
4,810 hours, 1,454 cycles
Engine
Rroyce BR700710A110
Engine time
4,650 hours, 1,407 cycles
Part
Bonding Strap
Condition
Shorted
Location
Nr 1 Nacelle
Stage of operation
CR
How discovered
O
Nature of condition
N
Precautionary procedure
A

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

What was found

DURING CRUISE, CREW REPORTED AN INTERMITTENT FIRE WARNING INDICATION ON NR 1 ENGINE, WHICH SUBSEQUENTLY TURNED INTO A STEADY INDICATION. FOLLOWED PROCEDURES IN THE AFM IN ORDER TO CONFIRM OR EXCLUDE VALIDITY OF INDICATION. DETERMINED INDICATION WAS FALSE. MX VERIFIED THAT THE FIRE WAS FALSE, AND TROUBLESHOT THE DETECTION SYSTEM. A BONDING LEAD POSITIONED TOO CLOSE TO THE LOOP "A" TERMINAL WAS FOUND TO BE THE PROBLEM. THE BONDING LEAD WAS REPOSITIONED TO ADD CLEARANCE. CONTINUITY, RESISTANCE AND FUNCTION CHECKS IAW AMM INDICATE NORMAL FUNCTIONALITY.