What was found
DURING HEAVY MAINTENANCE, EMERGENCY LIGHTS TEST FAILED AT EPSU UNIT AT POSITION 11WL. R & R EPSU AT POSITION IAW AMM 33-51-38. OPS CHECKED GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING HEAVY MAINTENANCE, EMERGENCY LIGHTS TEST FAILED AT EPSU UNIT AT POSITION 11WL. R & R EPSU AT POSITION IAW AMM 33-51-38. OPS CHECKED GOOD.