What was found
DURING A SCHEDULED NOSE GEAR SEAL REPLACEMENT, METALLIC SHAVINGS WERE FOUND ON THE LOWER CARRIER BEARING DURING DISASSEMBLY. SUBSEQUENT INVESTIGATION FOUND DAMAGE ON THE P/N 162A1524-1 RETAINER NUT. IT WAS NOTED THAT THE LOCK WIRE FOR THE RETAINER NUT WAS FRACTURED AND THAT THE RETAINER NUT HAD BACKED OUT FROM THE ORIFICE SUPPORT TUBE. DAMAGE WAS ALSO FOUND COMMON TO THE PN 162A1505-1 METERING PIN RETAINER NUT. MFG HAS NOW RECEIVED 6 REPORTS OF INTERNAL SHOCK STRUT FINDINGS DUE TO THE ORIFICE PLATE RETAINER NUT BACKING OFF FROM THE ORIFICE SUPPORT TUBE.