What was found
CUSTOMER REPORTED THE LT MLG DOWNLOCK LIGHT DID NOT ILLUMINATE WHEN THE LANDING GEAR WAS EXTENDED. AIRCRAFT LANDED WITHOUT INCIDENT. INSPECTION REVEALED THE PN 41949-02 LANDING GEAR LOCK ROD ASSY WAS SEIZED DUE TO LACK OF LUBRICATION PREVENTING THE DOWNLOCK HOOK FROM FULLY ENGAGING. SUBMITTER STATED THE MM CALLS FOR A 100-HOUR LUBE. A MORE FREQUENT LUBRICATION MIGHT BE ADVISABLE IN WET/CORROSIVE ENVIRONMENTS.