Service difficulty report · Battery Pack · Boeing 7378H4

Difficulty date
April 23, 2023
Submitted
April 26, 2023
Operation
Air carrier
Aircraft
N8529Z
Make and model
Boeing 7378H4
Aircraft serial
36974
Aircraft time
19,992 hours, 9,666 cycles
Part
Battery Pack
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

FWD RIGHT SECTION OF EMERGENCY EXIT LIGHTS ARE INOP.<[01] REPLACED M2816 AND M1676 EMERGENCY LIGHT BATTERIES AND CHARGERS PER AMM 33-51-06-960-806 AND AMM 33-51-06-960-805. MOST LIGHTS IN AREA NOW OPERATE CORRECTLY; THE RIGHT OVERWING EMERGENCY HATCH FLOOR PROXIMITY LIGHT AT THE FORWARD EDGE IS STILL NOT WORKING.;[02] VERIFIED CORRECTIVE ACTION #1;[03] DISPLACED R/H DADO PANEL UNDER R/H FWD OWE TO FO.M PER AMM 21-23-03-000-801 AND DISCONNECTED THE EMERGENCY EXIT WIRES AND CONNECTED CORRECTLY PER AMM 25-21-46-000-801 STEP 2.D.(4); AMM 25-21-46-400-801 STEP 3.C.(2);[04] PERFORMED GOOD EMERGENCY EXIT LIGHT OP TEST AS PER AMM 33-51-06-960-805 STEP4.E.(6);[05] VERIFIED CORRECTIVE ACTION #'S 3 AND 4

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