ENDED MOS 13-FEB-20I3 SL 737-SL-32-191 MLG SHOCK STRUT ALTERNATE DYNAMIC SEAL. SERVICE LETTER RECOMMENDED MOS 16-APR-20I3 SL 737-SL-32-192 BRAKE CONTROL CABLE TENSION CHECK (SUPERSEDED BY SL 737-SL-32-192 REV. A). SERVICE LETTER MOS SL 737-SL-32-192 REV. A BRAKE CONTROL CABLE TENSION CHECK. SERVICE LETTER MOS