As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR INTERRUPT, EMER DECLARED, LANDING UNEVENTFUL & ACFT NOT OVERWEIGHT. DURING CLIMB, PASSING FL180 THE TAIL COMPARTMENT TEMP HIGH LIGHT ILLUMINATED. PERFORMED TAIL COMPARTMENT LEAK CHECK IAW MCM36-95-15 & FOUND THE PRIMARY HEAT EXCHANGER LEAKING AT THE UNION WITH DUCT. R & R THE RT PRIMARY HEAT EXCHANGER IAW AMM 21-51-04. PERFORMED LEAK CHECK. SYS CHECKED NORMAL.