As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 1479, DCA-FLL. WHILE PERFORMING TASK CARD E-190-33-50-01-720-801 FWD, MID & AFT FROM WO 1001155. EMERGENCY LIGHT POWER UNIT FUNCTIONAL TEST FAILED ON STEP 8-C-A-A-3. (15 MIN STEP) ONLY THE CENTER FUSELAGE EMERGENCY EXIT SIGNS STAYED ON FOR 15 MINUTES. ALL OTHERS LASTED LESS THAN 2 MINUTES; REF LG PG #2479616 I#1+2, ALSO REF LG PG#2479617 I#1+2 FOR R & R OF ALL ELPU'S. ACCOMPLISHED ELPU'S FUNCTIONAL TEST IAW AMM 33-50-01. TEST GOOD. A/C OK FOR CONT.