As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT PACK HEAT EXCHANGER HAS 2 CRACKS ON UPPER AND LOWER SURFACES APPROX 5 INCHES IN LENGTH EACH. LH HEAT EXCHANGER HAS A 19 INCH CRACK AT THE 6:00 O' CLOCK POSITION. SUPPLEMENTAL DATA UPDATE REMOVED & REPLACED RH & LH PACK HEAT EXCHANGERS. ACP'D RH & LH PACK HEAT EXCHANGERS LEAK CHECKED AND INSTALLATION TESTED. NO LEAKS NOTED.