As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY POWER SUPPLY UNIT WILL NOT TEST AT L1 DOOR. ACCOMPLISHED TSM 33-41-00-810-818-A, AND FOUND GROUND SIGNAL ON PIN C REQUIRING SLIDE CHANGE OF L1 DOOR. REPLACED THE SLIDE AND ACCOMPLISHED A SATISFACTORY OPS CHECK OF THE SLIDE AND EMERGENCY POWER SUPPLY UNIT IAW JOB CARD 33L00025001 AND AMM 33-51-0-710-801-A.