As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND HOSE MADE BY IMPERIAL EASTMAN HYTYON YP006 250 PSI W.P. FOUND OUTSIDE OF HOSE CRACKED AND COMING APART. FOUND INSIDE OF HOSE RED IN COLOR VERY BRITTLE, CRACKING. HOSE USED FOR INSTRUMENT VACUUM SERVICE. HOSE ROUTED FROM INSTRUMENT AIR FILTER TO ARTIFICIAL HORIZON. NOTE: OTHER CESSNA AIRCRAFT HAVE HAD THIS TYPE HOSE PROBLEM WITH SAME TOTAL TIMES. TACK 1,667.5 HOURS. TTAC 1,607.5 HOURS. (X)