Service difficulty report · Control Unit · Bolkms BK117B2

Difficulty date
October 5, 2008
Submitted
November 3, 2008
Operation
Air carrier
Aircraft
N154AM
Make and model
Bolkms BK117B2
Aircraft serial
7154
Part
Control Unit
Part number
1179203107
Part serial
0465
Condition
Shorted
Location
Instrument Panel
Stage of operation
TX
How discovered
O
Nature of condition
B
Precautionary procedure
O

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

What was found

AFTER STARTING ENGINE NR 1 NOTICED AN ELECTRICAL ODOR AND INSTRUMENT PANEL LIGHT CIRCUIT BREAKER POPPED. ACFT SHUTDOWN, MX. LIGHT INTENSITY CONTROL UNIT P/N 117-92031-07 SHORTED OUT CAUSING BURNED ELECTRICAL ODOR IN COCKPIT. SHORTED UNIT CAUSED INSTRUMENT LIGHTS TO BECOME INOPERATIVE AND THEN POPPED THE INSTRUMENT LIGHT CIRCUIT BREAKER.