What was found
FLIGHT CREW REPORTED THAT GYRO WOULD NOT ERECT AT LOW RPM. DISCOVERED LOW INSTRUMENT AIR PRESSURE. REPLACED AIR PUMP AND SYSTEM OPS CHECKED NORMAL. NO RECOMMENDATION AT THIS TIME.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLIGHT CREW REPORTED THAT GYRO WOULD NOT ERECT AT LOW RPM. DISCOVERED LOW INSTRUMENT AIR PRESSURE. REPLACED AIR PUMP AND SYSTEM OPS CHECKED NORMAL. NO RECOMMENDATION AT THIS TIME.