As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCREW SQUAWKED COPILOT INERTIA REEL HARNESS LOCKED UP AND WOULD NOT RELEASE. AMT DETERMINED COIL SPRING WITHIN INERTIA REEL HOUSING HAD BROKEN LOOSE FROM ITS INSTALLED POSITION AND JAMMED THE ROLLER. DATE STAMP FOR THE INERTIA REEL ASSEMBLY WAS 0401(APR 01). BOTH PILOT AND COPILOT INERTIA REELS WERE INSTALLED ON THIS AIRCRAFT 1 JUNE 01. COPILOT HARNESS LOCKED UP ON 7 JUNE O1. ASSEMBLY WAS RETURNED TO MFG FOR REWORK, 21 JUNE 01.