Service difficulty report · Battery Pack · Boeing 7377H4

Difficulty date
July 19, 2024
Submitted
July 25, 2024
Operation
Air carrier
Aircraft
N480WN
Make and model
Boeing 7377H4
Aircraft serial
33998
Aircraft time
66,683 hours, 39,621 cycles
Part
Battery Pack
Condition
Inoperative
Location
Zone 200
Stage of operation
IN
How discovered
9
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 SEVERAL EMERGENCY LIGHTS INOPERATIVE IN THE PASSENGER CABIN.<[01] PERFORMED T/S OF THE EMERGENCY LIGHT SYSTEM AS PER B737 WDM 31-51-12 AND FOUND THE BATTERY PACK AT POSITION M1674 INOPERATIVE. REMOVED AND REPLACED BATTERY PACK AT POSITION M1674 PER REF B737 AMM 33-51-06-960-805. PERFORMED OPERATIONAL TEST OF NEW BATTERY PACK AT POSITION M1674 PER REF B737 AMM 33-51-06-960-805; TEST PASSED.;[02] CORRECTION TO STEP 1:<BR>PERFORMED T/S OF THE EMERGENCY LIGHT SYSTEM AS PER B737 WDM 33-51-12 AND FOUND THE BATTERY PACK AT POSITION M1674 INOPERATIVE. REMOVED AND REPLACED BATTERY PACK AT POSITION M1674 PER REF B737 AMM 33-51-06-960-805. PERFORMED OPERATIONAL TEST OF NEW BATTERY PACK AT POSITION M1674 PER REF B737 AMM 33-51-06-960-805; TEST PASSED.;[03] VERIFIED STEP 2.

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