What was found
APU FIREWALL IS CHAFED AT UPPER LT AREA. PERFORMED REPAIR OF CHAFED AREA ON APU FIREWALL AT UPPER LT AREA IAW ERS-EM-53MR-1090.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
APU FIREWALL IS CHAFED AT UPPER LT AREA. PERFORMED REPAIR OF CHAFED AREA ON APU FIREWALL AT UPPER LT AREA IAW ERS-EM-53MR-1090.