What was found
AFTER 30 MINS APU AUTO SHUTDOWN ON RAMP. REMOVED AIR FROM IGV ACTUATOR (LOCKED) AND REINSTALLED ALSO REPLACED APU FUEL FILTER OK PERFORMED APU OPS CHECK OK
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AFTER 30 MINS APU AUTO SHUTDOWN ON RAMP. REMOVED AIR FROM IGV ACTUATOR (LOCKED) AND REINSTALLED ALSO REPLACED APU FUEL FILTER OK PERFORMED APU OPS CHECK OK