As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN THE OPERATIONAL CHECK OF CARGO FIRE EXTINGUISHING BOTTLE, RELAYS THE AFT ARM SWITCH FOUND INOPERATIVE.(<P>TASK CARD A-26-016-00-01/002. CARGO FIRE EXT BOTTLE RELAY AFT CARGO WAS ACCOMPLISHED IAW TASK CARD A-26-016-00-01/001 (NR00509) AND MODULE ASSY MASTER WAS REPLACED IAW AMM 26-23-01-706-038 REV 140 DATE 22AUG2023. OPERATIONAL TEST WAS PERFORMED SATISFACTORY.</P>)