As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HMV3PSV19 ROUTINE OPN 6002 WAS BEING PERFORMED TO TEST THE RAM AIR TURBINE DEPLOYMENT SYSTEM. THE RAT FAILED TO DEPLOY TO FULL EXTEND AND LOCK POSITION. MTC CLEANED AND LUBED LINKAGE, DOOR HINGES AND ADJUSTED COMPARTMENT DOOR LINKAGE PER MM. RAT WAS RETESTED PER MM 29-21-00-735-143, OPERATION WAS NORMAL.