As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
YELLOW SYSTEM HI TEMP ILLUMINATED, POM PROCEDURES FOLLOWED. WHILE TURNING OFF AC PUMP, AC PUMP FAIL ILLUMINATED MOMENTARILY. NOTED COOLING OIL FOR NR 2 ENGINE DRIVEN PUMP BYPASSING PUMP DUE TO DAMAGED SEALS. REPLACED NR 2 HUDRAULIC PUMP AND ASSOCIATED SEALS. PERFORMED GROUND RUN. ALL CHECKS GOOD. ILLUMINATION OF AC PUMP FAIL LIGHT WHEN SELECTING PUMP OFF IS NORMAL INDICATION. P/N 521449, S/N ON F9840810.