SDR SWAA2026070115636

Service difficulty report · Battery Pack · Boeing 7377H4

Difficulty date: June 25, 2026
Submitted: July 2, 2026
Operation: Air carrier
Aircraft: N481WN
Make and model: Boeing 7377H4
Aircraft serial: 29853
Aircraft time: 72,166 hours, 43,312 cycles
System (JASC): 3350 · Emergency Lighting
Part: Battery Pack
Condition: Inoperative
Location: Zone 200
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

MUTIPLE EMERGENCY EXIT LIGHTS INOPERATIVE. REMOVED; INSTALLED SERVICEABLE, AND PERFORMED OPS CHECK OF EMERGENCY LIGHT BATTERY PACKS M1672, M1673, AND M1675 IAW AMM 33-51-06-960-805. OPS CHECK GOOD. PERFOMED OPS CHECK OF EMERGENCY LIGHT BATTERY PACKS IAW AMM 33-51-06-960-805. OPS CHKD GOOD.

More about the Boeing 737-7H4