Service difficulty report · Battery · Boeing 777222

Difficulty date
September 27, 2025
Submitted
October 1, 2025
Operation
Air carrier
Aircraft
N779UA
Make and model
Boeing 777222
Aircraft serial
26941
Aircraft time
102,533 hours, 19,209 cycles
Part
Battery
Part number
PC1604
Condition
Discharged
Location
Zone 800 Epas
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

EMERGENCY POWER ASSIST SYSTEM (EPAS) 9 VOLT BACK-UP BATTERY INSTALLATION. INSTALLED SLIDE SAFETY PINS (2EA) FOR MAINTENANCE INSTALLED SAFETY PINS AT DOOR L1 SLIDE. REMOVED AND STORED DOOR SLIDE SAFETY PINS (2EA) FROM L1 DOOR SLIDE. C/W IDT, VERIFIED SLIDE SAFETY PINS ARE ROMOVED AND STOWED IN SLIDE POUCH AT L1 DOOR.