As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APPROX HALF WAY THROUGH FLIGHT, ELECTRICAL BURNING SMELL APPEARED IN COCKPIT. AS A PRECAUTION TURNED C-1 HYD PUMP. SMELLED DISAPATED. FOUND RELAY M303 LEAKING EXTERNALLY. TIME DELAY FOR CI PUMP. NO STOCK HNL, AOC FOR CCN-2903041. 348 TO MOC. RM5273. REPLACED ECCR IAE AMM 29-11-14. OPS CHECK OK NO BURNING SMELL NOTED. REMOVED AND REPLACED RELAY M303. OPS CHECK OK IAW FIM 29-11-00-1.