Service difficulty report · Power Supply · Boeing 74747UF

Difficulty date
June 18, 2016
Submitted
June 20, 2016
Operation
Air carrier
Aircraft
N496MC
Make and model
Boeing 74747UF
Aircraft serial
29257
Aircraft time
68,862 hours, 11,173 cycles
Part
Power Supply
Part number
BPS73
Part serial
46840
Condition
Failed
Location
Cabin
Stage of operation
IN
How discovered
C
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

FOUND EMERGENCY LIGHTS DID NOT STAY ON FOR 15 MINUTES, X325, X326, M4914, L1382, L5730, L5731, L5732, L5734 IAW AMM 33-51-04-002-009-001 AND 33-51-04-402-012-001, REV 86. REPLACED POWER SUPPLY IAW AMM 33-51-04-402-012-001, REV 86 PERFORMED INSTALLATION TEST OF POWER SUPPLY AND THE RESULT WAS SATISFACTORY.

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