SDR DJFA2009039

Service difficulty report · Circuit Breaker · Beech 400A

Difficulty date: October 11, 2009
Submitted: October 12, 2009
Operation: Air carrier
Aircraft: N474LX
Make and model: Beech 400A
Aircraft serial: RK541
Aircraft time: 1,184 hours, 1,026 cycles
System (JASC): 3097 · Ice/Rain Protection System Wiring
Part: Circuit Breaker
Condition: Shorted
Location: Anti Ice System
Stage of operation: TX
How discovered: O
Nature of condition: B, S
Precautionary procedure: H

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

What was found

WHILE RUNNING ENGINES ON THE GROUND, PRIOR TO DEPARTURE, CREW REPORTED A POPPING SOUND COMING FROM THE LT SIDE OF THE COCKPIT, FOLLOWED BY SMOKE EMINATING FROM THE LT WINDSCREEN AREA. MX DISCOVERED THE RT ANTI-ICE AND WING AINTI-ICE CIRCUIT BREAKERS CONTACTING THE FUSELAGE STRUCTURE.

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