What was found
WHEN CREW ATTEMPTED TO EXTEND FLAPS AT 162 KIAS A FLAPS FAIL MESSAGE WAS RECEIVED AND THE FLAPS WERE STUCK AT ZERO DEGREES. THE FLIGHT THEN DIVERTED TO EWR FOR RUNWAY LENGTH REQUIREMENT. FERRIED AIRCRAFT TO DTW ON 9/21/2012 WHERE PERFORMED TROUBLESHOOTING PER BOMBARDIER FIM REV 43 IAW AD 2009-06-12 PARAGRAPH (H)(6)(1) AMOC DATED APRIL 19, 2012 AND PA AD27-052H. FOUND RIGHT BPSU & FECU INOP. REMOVED AND REPLACED RIGHT BPSU IAW CRJ 200 AMM 27-51-10. P/N OFF 855D100-15 S/N OFF 2304. P/N ON 855D100-15 S/N ON 2402. REMOVED AND REPLACED FECU IAW AMM 27-51-05. OPS CHECKS GOOD.