As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED A +- 400FT SPLIT WITH ALTEMETERS. FOUND PITOT/STATIC HOSE CRACKED. NOTE: OUR LEARJET 35 FLEET OF AIRCRAFT WERE RVSM CONVERTED WITH A LEARJET STC, THESE HOSES ARE PART OF THE CONVERSION AND FOUND THIS PROBLEM WITH OTHER LEARJET 35 RVSM CONVERTED AIRCRAFTS IN OUR FLEET.