Service difficulty report · Battery Pack · Boeing 7378H4

Difficulty date
November 8, 2024
Submitted
November 12, 2024
Operation
Air carrier
Aircraft
N8315C
Make and model
Boeing 7378H4
Aircraft serial
38811
Aircraft time
40,212 hours, 18,964 cycles
Part
Battery Pack
Condition
Inoperative
Location
Zone 200
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

EMERGENCY EXIT LIGHTS REMAIN ON IN ARM POSITION. FOUND BREAKER P18-3 B10 TO BE POPPED. OVERWING EXIT SIGN LIGHT IN CABIN STAYED ON IN THE ARMED POSITION. RESET BREAKER LIGHTS STAYED OFF DURING ARMED POSITION.<[01] REFERENCE WDM 33-51-11 PAGE 10 SHEET 2: EMERGENCY LIGHTS OPERATION CHECKS OK. REFERENCE M/M 33-51-00. SHOOK DOWN CONNECTIONS AT BATTERY PACK ASSEMBLIES M1695; M1671 AND M1672 PER SWPM?NO FAULTS FOUND. REPLACED M1695; M1671 AND M1672 CHARGER ASSEMBLIES AND BATTERY PACKS FOR TROUBLESHOOTING PER M/M 33-51-06. OPS CHECKS OK

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