As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOWER BODY O/H LIGHT ILLUM, WITH BOTH PACKS ON NR 1 ENG BLD CLOSED NR 2 AND 3 ENG BLD OPEN. RAN RED TABS 2-714 WHEN NR 1 BLD AND LT PACK OFF LIGHT WENT OUT. REMOVED AND REPLACED AFT BODY O/H DETECTION DETECTOR AS PER MM 26-14-0, OPER CK NORM.