Service difficulty report · Power Supply · Boeing 7377H4

Difficulty date
May 12, 2025
Submitted
May 14, 2025
Operation
Air carrier
Aircraft
N957WN
Make and model
Boeing 7377H4
Aircraft serial
41528
Aircraft time
45,024 hours, 27,712 cycles
Part
Power Supply
Condition
Inoperative
Location
Zone 200
Stage of operation
IN
How discovered
V
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

CSTOMER REQUEST R.L. PASSENGER CABIN; STOWBIN EGRESS LIGHT 3CBA DOES NOT STAY ON .<[01] OPENED AIRGRILL AT M1668 POWER SUPPLY IAW AMM 33-51-06-960-806 STEP 5.A-E(3).<BR><BR>REMOVED AND REPLACED EMERGENCY POWER SUPPLY M1668 IAW AMM 33-5106-960-806 STEP 5.E(4).<BR><BR>ACCOMPLISHED INSTALLATION TEST FOR EMERGENCY POWER SUPPLY M1668 IAW AMM 33-5106-960-806 STEP 5.E(5). TEST GOOD.<BR><BR>CLOSED AIRGRILL AT M1668 POWER SUPPLY IAW AMM 33-51-06-960-806 STEP 5.F.;[02] C/W<BR>AUDIT C/W;[03] PART ROBBED FROM A/C 8938 ON TTG8Q010CKBS

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