As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT NOSE GEAR DOOR ROD ATTACH CLEVIS PIN FELL OUT. UPON RETRACTION OF GEAR, LEFT NOSE DOOR FOULED THE RETRACTORY NOSE GEAR AND JAMMED. GEARBOX CONTINUED PULLING UNTIL 0842102 BELLCRANK BROKE. WHEN GEAR WAS EXTENDED NOSE GEAR WOULD NOT EXTEND. DOOR CLEVIS PINS WERE INSTALLED WITH AN 416 PINS INSTEAD OF COTTER PINS AS CALLED OUT BY IFC.