As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB-OUT OF JFK, FOUND CAPTAIN AND FIRST OFFICERS AIRSPEED INDICATORS AND ALTIMETERS IN DISAGREEMENT, DUMPED FUEL AND ACCOMPLISHED AIR TURN BACK TO JFK. AIRCRAFT LANDED WITHOUT INCIDENT. FOUND CAPTAINS VSI LEAKING, AND FIRST OFFICERS PITOT TUBE ALSO LEAKING, REPLACED BOTH UNITS. SYSTEM OPS CHECKED GOOD PER MM CH 34-11-00. (M)