As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKING OFF FROM ILL FOR ANC ON FLIGHT 956, FOUND RIGHT MAIN LANDING GEAR WOULD NOT RETRACT, CONTINUED FLIGHT WITH GEARS DOWN AND LANDED IN ANC WITHOUT INCIDENT. FOUND RIGHT MAIN LANDING GEAR JACKSCREW FAILED. REMOVED AND REPLACED JACKSCREW AT RIGHT AFT POSITION. OPS CHECKED GOOD PER MM CH 32. (M)