As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER T/O WITH GEAR HANDLE PLACED IN THE UP POSITION RED DOOR LIGHTS AND TAIL SKID LIGHT REMAINED ILLUMINATED, F/E SECONDARY INDICATORS AND DOOR LIGHTS WERE OUT. RECYCLED GEAR SAME INDICATIONS. REMOVED AND REPLACED LANDING GEAR ACCESSORY UNIT SYSTEM OP CKD GOOD IAW B727 MM 32-09-21.