Service difficulty report · Charger · Boeing 73779P

Difficulty date
July 21, 2021
Submitted
July 27, 2021
Operation
Air carrier
Aircraft
N7820L
Make and model
Boeing 73779P
Aircraft serial
28253
Aircraft time
52,814 hours, 34,351 cycles
Part
Charger
Condition
Defective
Location
Emergency Lights
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

LAV A EXIT LIGHT DAMAGED. ; / [01] REINSPECTED LAV A EXIT LIGHT AND FOUNDED FUNCTIONAL IN NORMAL CONDITIONS AS PER REF B737 AMM 33-51-01-960; [02] DURING T/S FOUND EMERGENCY LIGHT L1187 INOP. BECAUSE OF M1675 BATTERY POWER SUPPLY INCLUDING BATTERY AND CHARGER ARE DEFECTIVES; REMOVED AND REPLACED POWER SUPPLY BATTERY CHARGER AS PER B737 AMM TASK 33-51-06-960-806.; [03] VERIFIED WORK ACCOMPLISH; [04] REMOVED AND REPLACED M1675 EMERGENCY LIGHT BATTERY PACK.PER B737 AMM33-51-06.PERFORMED TEST CHECKED NORMAL.; [05] REMOVED AND REPLACED POWER SUPPLY BATTERY CHARGER AND BATTERY PACK POSITION M1675 AS PER B737 AMM TASK 33-51-06.; [06] ADDED PART OFF AND ON INFORMATION; [07] VERIFIED

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