As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING "AFTER START" PROCEDURE RT PACK LIGHT ILLUMINATED ON MASTER CAUTION RECALL, EXTINGUISHED ON MASTER CAUTION RESET. GROUNDED - YES. REPLACED TURBINE INLET OVERHEAT SWITCH, PER AMM 21-51-41 AND OPS CHECKED GOOD PER TSR 709929. CLEARS MEL 21-32B, PLACARDS REMOVED. NO CONFIG CHANGES MADE. SEAMC JOE NOTIFIED.