What was found
(CAN) FLT CREW REPORTED AN OSCILLATION IN BLEED FLOW FROM NR 1 ENGINE INDICATIONS WERE: CHANGES IN SOUND OF AIRFLOW, ITT AND CABIN ALT FLUCTUATIONS.ENG PRESS/REG S/O VALVE REPLACED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(CAN) FLT CREW REPORTED AN OSCILLATION IN BLEED FLOW FROM NR 1 ENGINE INDICATIONS WERE: CHANGES IN SOUND OF AIRFLOW, ITT AND CABIN ALT FLUCTUATIONS.ENG PRESS/REG S/O VALVE REPLACED.