What was found
FLIGHT: 5400 AFTER TAKEOFF, LANDING GEAR UNSAFE LIGHT REMAINED ILLUMINATED AFTER GEAR RETRACTION, LIGHT EXTINGUISHED AFTER RUNNING QRH. REPLACED LT MAIN GEAR UPLOCK SWITCH. OPS CHECK OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLIGHT: 5400 AFTER TAKEOFF, LANDING GEAR UNSAFE LIGHT REMAINED ILLUMINATED AFTER GEAR RETRACTION, LIGHT EXTINGUISHED AFTER RUNNING QRH. REPLACED LT MAIN GEAR UPLOCK SWITCH. OPS CHECK OK.