As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN FLIGHT MIA TO DCA AIR INTERRUPT INTO MCO DUE TO LEFT ENGINE BLEED INOPERATIVE. PLACARD LEFT ENGINE BLEED INOPERATIVE PER MEL 36-05 AND ACCOMPLISHED MEL VALVE IN CLOSED LOCK POSITION. AT DCA FOUND LENSE LINE LOOSE. TIGHTENED SENSE LINE ON BLEED AIR REGULATOR.