Service difficulty report · Battery Pack · Boeing 7377H4

Difficulty date
June 28, 2023
Submitted
June 28, 2023
Operation
Air carrier
Aircraft
N960WN
Make and model
Boeing 7377H4
Aircraft serial
36675
Aircraft time
38,108 hours, 23,248 cycles
Part
Battery Pack
Part number
UNKNOWN
Condition
Inoperative
Location
Zn 200 Fus Top
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

LIGHTS ASSOCIATED WITH M1670 BATTERY INOP LIGHTS ASSOCIATED WITH M1670 BATTERY INOP. SUSPECTED BAD BATTERY CHARGER. REMOVED AND REPLACED M1670 BATTERY PACK WITH SERVICEABLE UNIT AND PERFORMED GOOD INSTALLATION TEST IAW AMM 33-51-06-960-805. COMPLETION OF STEP 2. NO ADDITIONAL TESTING REQUIRED FOR STEP 3. OK TO CLOSE SIDEWALL CARPET RISER ON STEP 1. CERTIFIED ACTIONS 2 AND 3. STEPS 2 & 3 ARE COMPLETED. OK TO CLOSE SIDEWALL CARPET RISER GIVEN. PER IPC 33-51-06-01 ITEMS 33 AND 34A; BLOWN FUSE MENTIONED IN STEP 3 IS REPLACED AS A PART OF THE BATTERY POWER SUPPLY ASSEMBLY. VERIFIED CORRECTIVE ACTIONS STEP 9. COMPLETION OF STEP 1, STEP 1 COMPLETED.

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