As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLIMB AND CRUISE DUCT PIS SPLIT/LEFT=21 PSI RIGHT 38 PSI. PERFORM ENG BLEED SYSTEM HEALTH CHECK PER AMM 36-11-00-5. FOUND HIGH STAGE VALVE LEAKING REMOVED AND REPLACED VALVE PER AMM 36-11-07-4 OPS CHECK GOOD. CONFIRM NO MORE PROBLEMS NOTED. (M)