What was found
DURING MAIN ENGINE START, APU SHUT DOWN.. MAINTENANCE FOUND A HOLE IN APU COMPRESSOR CASE, NO AC DAMAGE NOTED. REPLACED THE APU. CHECKED OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING MAIN ENGINE START, APU SHUT DOWN.. MAINTENANCE FOUND A HOLE IN APU COMPRESSOR CASE, NO AC DAMAGE NOTED. REPLACED THE APU. CHECKED OK.