What was found
FLAPS FAIL, FLAPS 0 LANDING, LIGHT CAME ON 195 KTS, 2500 FEET. FLAPS FAILED TRYING TO SET 20 DEG. REF FLAP FAIL EVENT ON AML 3222764. LT & RT FLAP BPSUS REQUIRED RIGGING IAW AMM 27-51-10. PERFORM OPERATIONAL TEST OF FLAPS IAW TASK 27-54-00-710-801. IAW FIM 27-50-00 CHECKED WIRING TO LT BPSCU & FECU, CHECKED GOOD. R & R FECU IAW AMM 27-51-05 IAW FIM 27-50-00 FIG 107 ITEM 3. ALL OPERATIONAL & FUNCTIONAL CHECKS CHECKED GOOD. SEE NON-ROUTINE WC N78188 FOR WORK DETAILS. ACFT CHECKED OK AT THIS TIME IAW TO AML 3222764 FOR STANDALONE SIGNOFF. PERFORMED TROUBLESHOOTING IAW FIM REV 48 IAW AD 2009-06-12 PARAGRAPH H 6 I AMOC LOG 14-105 DATED 12 30 2014 & TROUBLESHOOTING 001100R1 FIM TECHNICAL SUPPLEMENT. R & R FECU IAW FIM 27-50-00 IAW AMM 27-51-05, ALSO SHOT WIRES TO FECU & LT BPSU WIRES CHECKED GOOD. FECU CODES 5-1B, 5-2B, 12-1A, 12-2A, 25-BC & 33-BC. RIGGED LT & RT FLAP BPSUS IAW AMM 27-51-10-830-801. BOTH BPSUS READ 0.00 WITH FLAPS SET TO ZERO. ACCOMPLISHED OPERATIONAL TEST OF FLAP SYS IAW AMM 27-54-00. FLAPS OPERATIONS CHECKED GOOD AT THIS TIME.