What was found
DURING HEAVY CHECK. MX FOUND TUBE ON BLEED AIR DUCT CORRODED BEYOND ALLOWABLE LIMITS. MX R & R BLEED AIR DUCT IAW AMM 21-51-66.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING HEAVY CHECK. MX FOUND TUBE ON BLEED AIR DUCT CORRODED BEYOND ALLOWABLE LIMITS. MX R & R BLEED AIR DUCT IAW AMM 21-51-66.