Service difficulty report · Power Supply · Boeing 7374B7

Difficulty date
November 21, 2012
Submitted
November 27, 2012
Operation
Air carrier
Aircraft
N438US
Make and model
Boeing 7374B7
Aircraft serial
24560
Aircraft time
60,036 hours, 39,923 cycles
Part
Power Supply
Condition
Shorted
Location
Cabin
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
K

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

What was found

RON - ROW 1DF COVE EMERGENCY LIGHT INOPERATIVE. FOUND DIRECT SHORT TO GROUND ON M1132 POWER SUPPLY CP D2956 PIN 13. FOUND UNUSED DISCONNECT D3162 CONNECTED TO UNUSED DISCONNECT D3168 ABOVE 3L OVERHEAD BIN, DISCONNECTED, CAPPED AND STOWED WIRES IAW EA 203877. SATISFACTORY EMERGENCY LIGHT OPERATION TESTS PERFORMED IAW B373-400 AMM 33-51-00-715-001 AND 715-041.

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