What was found
ON DESCENT, VIBRATIONS WERE FELT FROM THE LEFT ENGINE. MAINTENANCE REPLACED THE NR 1 BLEED VALVE CONTROLLER.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ON DESCENT, VIBRATIONS WERE FELT FROM THE LEFT ENGINE. MAINTENANCE REPLACED THE NR 1 BLEED VALVE CONTROLLER.