SDR CA010222011

Service difficulty report · Bracket · Dhav DHC8*

Difficulty date: February 6, 2001
Submitted: March 1, 2001
Operation: General aviation
Make and model: Dhav DHC8*
Engine: Pwc PW150A
System (JASC): 4940 · APU Start/Ignition System
Part: Bracket
Part number: 8Z7591125
Condition: Damaged
Location: Apu
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 TROUBLESHOOTING FOR APU FAILED START, THE GROUND CABLE FROM APU SHUNT WAS FOUND SEPARATED FROM 4900-GS10 (STN X792) ON BRACKET. THE ATTACHMENT BRACKET WAS FOUND BURNT AS WELL AS THE CABLE CONNECTION. SYD WAS ISSUED AND THE CABLE WAS REPAIRED AND INSTALLED. BASED ON THE INFORMATION PROVIDED BY THE OPERATOR, IT IS BELIEVED THAT THE MOST PROBABLE CAUSE OF DAMAGE WAS IMPROPER INSTALLATION TORQUING OF THE GROUND STUD AND ATTACHING HARDWARE.