What was found
DURING ANNUAL INSP OF ACFT, INSP OF SHUTTLE VALVE OF STANDBY VACUUM SYS FOUND THE VACUUM PUMP SIDE, VALVE SPRING BROKEN. REPLACED WITH NEW PART.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING ANNUAL INSP OF ACFT, INSP OF SHUTTLE VALVE OF STANDBY VACUUM SYS FOUND THE VACUUM PUMP SIDE, VALVE SPRING BROKEN. REPLACED WITH NEW PART.