What was found
(CAN) THE ON GROUND BLEED AIR SUPPLY (FROM APU, ENGINE OR HPGC), PROVIDED DURING AIRCRAFT POWER-UP AS PART OF THE NORMAL OPERATING PROCEDURES, MIGHT BE INHIBITING THE EXECUTION OF THE AMS PBIT.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(CAN) THE ON GROUND BLEED AIR SUPPLY (FROM APU, ENGINE OR HPGC), PROVIDED DURING AIRCRAFT POWER-UP AS PART OF THE NORMAL OPERATING PROCEDURES, MIGHT BE INHIBITING THE EXECUTION OF THE AMS PBIT.