What was found
AFTER TAKEOFF, MAIN CARGO DOOR LIGHT ILLUMINATED AT 8 PSI. INSTALLED THREE GEAR AT DOOR LATCHES, RETURNED TO MIAMI. TROUBLESHOT SYSTEM, FOUND BAD LOCKING VALVE. REMOVED AND REPLACED LOCKING VALVE IAW 52-30-00, OPS CHECKED NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AFTER TAKEOFF, MAIN CARGO DOOR LIGHT ILLUMINATED AT 8 PSI. INSTALLED THREE GEAR AT DOOR LATCHES, RETURNED TO MIAMI. TROUBLESHOT SYSTEM, FOUND BAD LOCKING VALVE. REMOVED AND REPLACED LOCKING VALVE IAW 52-30-00, OPS CHECKED NORMAL.