Service difficulty report · Battery Pack · Boeing 7378H4

Difficulty date
August 26, 2022
Submitted
August 29, 2022
Operation
Air carrier
Aircraft
N8647A
Make and model
Boeing 7378H4
Aircraft serial
42528
Aircraft time
27,244 hours, 12,560 cycles
Part
Battery Pack
Part number
M1675
Condition
Inoperative
Location
Cabin
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

EMERGENCY LIGHTS AT FWD MAIN PASSENGERS CABIN INOP. / [01] REMOVED AND REPLACED BATTERY PACKS POS. M1670; M1671; M1672 AND M1673 AS PER AMM 33-51-06-960-805. PENDING OPERATIONAL TEST.;[02] REMOVED AND REPLACED BATTERY PACKS POS. M1694 AS PER AMM 33-51-06-960-805. PENDING OPERATIONAL TEST.;[03] REMOVED AND REPLACED BATTERY PACK POSITION M1695 AS PER AMM 33-51-06-960-805. PENDING OPERATIONAL TEST.;[04] REMOVED AND REPLACED BATTERY PACK POSITION M2335 AS PER AMM 33-51-06-960-805. PENDING OPERATIONAL TEST.;[05] REMOVED AND REPLACED BATTERY PACK POSITION M1676 AS PER AMM 33-51-06-960-805. PENDING OPERATIONAL TEST.;[06] REMOVED AND REPLACED BATTERY PACK POSITION M2816 AS PER AMM 33-51-06-960-805. PENDING OPERATIONAL TEST.;[07] REMOVED AND REPLACED BATTERY PACK POSITION M1676 AS PER AMM 33-51-06-960-805. PENDING OPERATIONAL TEST.;[08] VERIFIED STEPS 1; 2; 3; 4; 5; 6; AND 7.;[09] REMOVED AND REPLACED BATTERY PACK POSITION M1675 AS PER AMM 33-51-06-960-805; AND PERFORMED EMERGENCY LIGHTS - OPERATIONAL TEST AS PER B737 AMM 33-51-00-710-801. TEST OK.;[10] VERIFIED STEP # 9

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