SDR CALA2026091519421

Service difficulty report · Battery · Boeing 777224

Difficulty date: September 14, 2026
Submitted: September 15, 2026
Operation: Air carrier
Aircraft: N78005
Make and model: Boeing 777224
Aircraft serial: 27581
Aircraft time: 127,422 hours, 13,068 cycles
Engine: Ge GE9094B
System (JASC): 2560 · Emergency Equipment
Part: Battery
Part number: PC1604
Condition: Discharged
Location: R4 Epas
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 POWER ASSIST SYSTEM (EPAS) BATTERY, ELECTRICAL CHARGE CHECK (PED 1, 2, 3, 4) EPAS BATTERY ELECTRICAL CHARGE CHECK, GREEN LIGHT IN DOOR 4R DOES NOT BLINK NOR TURNS ON BOTH 9V BATTERIES REPLACED ON DOOR 4R EPAS BATTERY PACK IAW AMM 52-11-20-000-806-002.