As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND PII-5 C766, & PII-4 C772 CIRCUIT BREAKER TRIPPED. REPLACED THE CIRCUIT BREAKERS C766 & C772, RELATED DIODES R203 & R204 PER WDM 26-16-11 REV55 AND CONDITION CHK NORMAL, PFM LOWER CARGO COMPARTMENT SMOKE DETECTION SYSTEM OPERATIONAL TEST IAW AMM 26-16-00-715-001 REV 127 AND RESULT WAS SATISFACTORY.