As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF WHEN LANDING GEAR WAS RETRACTED NOSE GEAR DOOR A REMAINED ON. NOISE IN NOSE GEAR AREA CONFIRMED DOORS WERE NOT CLOSED. GEAR WAS RECYCLED AND ALL FURTHER OPERATIONS WERE NORMAL. ADJUSTED BOTH NOSE GEAR DOOR SWITCHES AS PER MAINTENANCE MANUAL 32-62-11 PAR 3-B PAGE 402 AND 403, OPERATIONAL CHECK GOOD.