As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NORMAL GEAR EXTENSION CHECK, GEAR DOOR FAILED TO REMAIN OPEN FOR AN ADDITIONAL 10 SECONDS AFTER GEAR DOWN AND LOCKED. PERFORMED FUNCTIONAL TEST OF THE LANDING GEAR PRIMARY EXTENSION AND RETRACTION SYSTEM IAW Q400 AMM TASK 32-31-00-720-801. OPS CHECK GOOD.