As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER LANDING, THE FLIGHT CREW BEGAN TO EXPERIENCE BURNING EYES AND COUGHING WITH A CHOKING FEELING DESCRIBED AS SIMILAR TO PEPPER SPRAY. THERE WAS NO SMOKE OR BURNING SMELL AND THE CABIN WAS UNAFFECTED. MX DISCOVERED A PIN HOLE LEAK IN THE "GEAR DOWN" HYD LINE UNDER THE COCKPIT FLOOR BETWEEN STA X110 & X182. IPC 29-20-00, FIG 10-30, PN 82910010-131. A NEW SECTION OF LINE WAS SWAGED IN PLACE AND LEAK CHECKS CARRIED OUT.