As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY EXIT SIGN AT L1 DOOR (L312) IS INOP.(<P>DURING T/S, FOUND BAD POWER SUPPLY AT L1 POSITION. REMOVED AND REPLACED L1 POWER SUPPLY BATTERY PACK I.A.W. B767 AMM 33-51-07. PERFORMED OPS CHECKS I.A.W. B767 AMM 33-51-07-402-010 STEP 7D.</P>)