Service difficulty report · Fire Bottle · Boeing 777222

Difficulty date
October 8, 2026
Submitted
October 21, 2026
Operation
Air carrier
Aircraft
N796UA
Make and model
Boeing 777222
Aircraft serial
26931
Aircraft time
116,315 hours, 15,177 cycles
Part
Fire Bottle
Part number
346000561
Part serial
11892F1
Condition
Faulted
Location
Zone 400
Part time
816,315 hours, 715,177 cycles
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
F, A

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

What was found

PER CREW, ENGINE FIRE BOTTLES WERE DEPLOYED AFTER ENGINE FIRE WARNING MESSAGE. REMOVED NR 1 & 2 FIRE EXTINGUISHING BOTTLES, VERIFIED NR 1 FIRE BOTTLE WAS NOT DISCHARGED. NR 2 FIRE BOTTLE WAS DISCHARGED, VERIFED BOTTLE WEIGHT GOOD ON FIRE BOTTLE NR 1 & 2. INSTALLED ENG 2 FIRE BOTTLES 1 & 2. UPON FINAL CONNECTION ON BOTTLE 2 PRESSURE SWITCH FOUND CONNECTOR WOULD NOT SEAT. ENGINE FIRE BOTTLE INSTALLATION TEST IAW AMM 26-21-01-400-801. CLEANED & INSPECTED CONNECTOR DB26002C FOR FIRE BOTTLE 2, NO DEFECTS NOTED. PROPERLY SEATED & INSTALLED. ACCOMPLISHED INSTALLATION OF NR 1 & 2 ENGINE FIRE BOTTLES IAW AMM 26-21-01-400-801. OPS CHKD FIRE BOTTLES. OPS CHKD PASSED, NO FAULTS NOTED.