What was found
FLAP FAIL AT 2 DURING AFTER LANDING CHECK 1C. PERFORMED TROUBLESHOOTING IAW FIM CHAPTER 27-50-00 REV 47 IAW AD 2009-06-12 PARAGRAPH H 6 I AMOC DATED APRIL 22,2014 & TS 001100-204 FIM TECHNICAL SUPPLEMENT. INTERROGATED FECU IAW AMM 27-51-05 FOUND CODE 171A ON FL 21843 PROBABLE CAUSE 1 JAM 2 DIFFERENTIAL 3. UNSPEC CODE 171A ON FLIGHT LEG 21843 PROBABLE CAUSE 1 JAM 2 RT BPSU 3. WIRING RT BPSU 171A ON FLIGHT LEG 21843 PROBABLE CAUSE 1 JAM 2 RT BPSU 3. WIRING RT BPSU. OPERATIONS TEST OF SDU IAW AMM 27-51-15 GOOD. OPERATION FLAPS IAW AMM 27-54-00. OPERATIONS CHECKED GOOD. NO FURTHER PROBLEMS DETECTED AT THIS TIME. OK FOR SERVICE.