SDR CA160310009

Service difficulty report · Wire · Bombdr DHC8400

Difficulty date: March 9, 2016
Submitted: April 22, 2016
Operation: General aviation
Make and model: Bombdr DHC8400
Aircraft time: 7,775 hours
Engine: Pwc PW150A
System (JASC): 2497 · Electrical Power System Wiring
Part: Wire
Condition: Damaged
Location: Relay
Stage of operation: CR
How discovered: O
Nature of condition: H, J
Precautionary procedure: O

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

What was found

(CAN) PILOT AUDIO D4 AVIONICS RT MAIN AND RCAU - PILOT AUDIO H2 LT ESSENTIAL HAVE POPPED AND WILL NOT RESET. PILOT IS UNABLE TO CHANGE COMM SELECTIONS FOR TRANSMIT. AUDIO CONTROL PORTION OF THE PANEL HAS FAILED. MAINTENANCE FOUND WIRES CHAFFING ON THE BASE OF RELAY 3400K1. MATRIX SPLICE 2350-CR2 (P/N: TJSE20702) REPLACED AND DAMAGED WIRES AT BASE OF RELAY 3400-K1 REPAIRED IAW AWM 23-51-00. SYSTEM TESTED SERVICEABLE.