As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAPT'S ALTIMETER IS STUCK AT 500 FEET. FOUND STATIC HOSE ASSY FROM CAPTS STATIC SOURCE SELECTOR TO MANIFOLD MOUNTED ON BACK OF INSTRUMENT PANEL TO BE PARTIALLY COLLAPSED. REMOVED AND REPLACED LINE SYSTEM CK NORMAL. PITOT STATIC LEAK CHECK PERFORMED.