As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING ACCOMPLISHMENT OF MAINTENANCE TASK 3410/97 ON A RADAR ANTENNA PEDESTAL ASSY, A MAINTENANCE EMPLOYEE OBSERVED THAT, SCREW SECURING THE ROLLER WHICH GUIDES THE NEGATOR SPRING HAD FALLEN OUT. THIS WAS PREVENTING THE ANTENNA FROM NORMAL STABILIZATION. PN MI585353. THE ANTENNA WAS REPLACED WITH A SERVICEABLE UNIT AS PER THE AMM.