As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ANNUAL, SPONGY BRAKE FOUND. UNABLE TO BLEED. FOUND (AGED) HYD OIL LEAD TO DETERIORATION OF SEALS IN 4 TOE BRAKES AND PARKING BRAKE. NO RECORD OF ANY PREVIOUS REPAIR. SUGGEST AC OVER 10 YEAR OLD HAVE SYSTEM FLUSH AND SEAL REPLACEMENT.