As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FIRE INDICATION IMMEDIATELY AFTER LIFTOFF. NO OTHER INDICATIONS AT ALL. BOTH ENGINE INDICATIONS WERE NORMAL. FIRE LIGHT EXTINGUISHED HALF-WAY DOWNWIND. ISOLATED BLOCKING DIODE 87 OF TB207A. DIODE CKS GOOD. ISOLATED WIRE 2241-0070-22 FROM TB201A BLK 87 TO D40209D MEGGED WIRE. CKS GOOD. REPLACED 6 PACK LT MODULE M779 ON CAPTS P1-3 PNL. FIRE DETECTION TEST AND IND NML.