As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
99-173 - ENGINE 3 STRUT OH LIGHT ILLUM IN FLT. SYSTEM TEST UNSATISFACTORY WITH CRUISE PWR ON ENG 3. FOUND THRUST REVERSER APU INTERCONNECT LINE CRACKED AND LEAKING. REMOVED AND REPLACED LINE IN ACCORD WITH STANDARD MAINTENANCE PRACTICE. LEAK CK GOOD. OK FOR SERVICE.