As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#136, PHX-JFK. 'EMERGENCY EXIT LIGHTS FLICKERS IN THE CABIN WITH POWER OFF THE AIRCRAFT; UNABLE TO REPLICATE FAULT, BITE TEST EPSU IAW 33-50-00. OPS TEST EMERGENCY LITE. ALL OPS CHECK OKAY.REF LP 3887089-1 (REPLACED EPSU REF AMM 33-50-01 (14WL) FOR TROUBLESHOOTING. NO FIX. REQUIRES FURTHER T/S.)-2 (REPLACED EPSU REF AMM 33-50-01 (15WL) FOR TROUBLESHOOTING.NO FIX. REQUIRES FURTHER T/S) FOR CORRECTIVE ACTIONS.'