Service difficulty report · Battery Pack · Boeing 7378

Difficulty date
April 5, 2026
Submitted
April 8, 2026
Operation
Air carrier
Aircraft
N8850Q
Make and model
Boeing 7378
Aircraft serial
67498
Aircraft time
10,436 hours, 5,641 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

R/H FWD SERVICE DOOR EMERGENCY EXIT SIGN LIGHT INOP. REMOVED AND REPLACED CHARGER ASSY AND BATTERY PACK M2816 IAW AMM 33-51-06. OPS CHECK BAD. CHECKED RESISTANCE AND VOLTAGE FROM D14812 TO D2968 IAW WDM 33-51-12. FOUND OPEN RESISTANCE AND NO VOLTAGE. REMOVED RH SERVICED DOOR EMERGENCY EXIT SIGN LIGHT ASSY IAW AMM 33-51-01. NEEDS REINSTALLED/REPLACED. FOUND CONNECTOR D40042 DISCONNECTED AT FWD RH DOOR WAY LINING. RECONNECTED CONNECTOR D40042. REF WDM 33-51-12. PERFORMED EMERGENCY LIGHTS OPERATIONAL CHECK PER AMM 33-51-00. FOUND NORMAL..

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