As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BRAKES VERY SOFT, YOU HAVE TO PUSH BRAKE PEDALS A LOT FURTHER THAN NORMAL TO MAKE BRAKES WORK IAW CESSNA 560 MM 32-42-00, PERFORMED BRAKE BLEEDING MAINTENANCE PROCEDURE. FOUND LARGE AMOUNTS OF AIR IN SYSTEM ALONG W/ LOW BRAKE FLUID LEVEL. REMOVED AIR AND REPLENISHED BRAKE FLUID DURING BRAKE BLEED PROCESS. OP'S CHECK GOOD, PEDALS TIGHT.