What was found
DURING APPROACH SELECTED 20 DEGREE FLAPS AT 170 KIAS. FLAP STUCK AT 17 DEGREES, GOT TE DISAGREE LIGHT & TE FLAP DISAGREE MESSAGE. ACCOMPLISHED CHECKLIST. TRAILING FLAPS DIDN`T MOVE DURING CHECKLIST, TRANSMISSION NR 8 INDICATOR TRIPPED. RESET INDICATOR, RAN FLAPS, INDICATION DID NOT TRIP. TO ACCOMPLISHED AT FOR FLAP TRANSMISSION NR 8 & FULL OPERATIONS CHECKED OF SYSTEM, EMERGENCY DECLARED DIVERTED & LANDED UNEVENTFULLY. REMOVED AND REPLACED NUMBER 8 FLAP TRASMISSION IAW AMM 27-51-17-024-001 AND AMM 27-51-17-434-020. OPS CHECKED GOOD. OK FOR SERVICE.