As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLAPS WOULD NOT EXTEND PAST 15 (DEG) ON FINAL APPROACH. AFTER LANDING THE FLAPS REMAINED AT 15 (DEG) REGARDLESS OF FLAP HANDLE POSITION. AFTER ONE HOUR, RESTARTED BOTH ENGINES AND THE FLAPS OPERATED NORMALLY. UNABLE TO DUPLICATE. BLED AND SERVICED HYD SYS IAW MM CH 12-12-01. FLAP SYSTEM OPS CHECK GOOD IAW MM CH 27-51-00.