As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON GEAR RETRACTION RED GEAR UNLOCKED LIGHT REMAINED ILLUMINATED FOR APPROX 45 SECONDS, DURING THE RETRACTION THERE WAS A LOAD FLUTTERING SOUND AND EVENTUALLY THE GEAR UNLOCKED LIGHT EXTINGUISHED. REMOVED UPPER AND LOWER BARREL ASSY FROM NLG AND SENT TO MFG FOR REPAIR. REINSTALLLED ORIGINAL BARREL ASSEMBLIES AFTER REPAIR. OPS CHECKED NORMAL. WORK IAW MM 32-20-02.