As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HYD PUMP DEM C1 LOW CENTER HYDRAULIC DEMAND PUMP NR 1 PRESSURE WHEN COMMANDED ON, OR CENTER DEMAND PUMP NR 1 OVERHEATED. STATUS MSG03- NOT ACTIVE INITIAL CLIMB MODE DEPENDENT; AIR DRIVEN PUMP (ADP) (C1) SPEED IS OUT OF RANGE. DB- HYDRAULIC INTERFACE MODULE (HYDIM) (CR) MSG-2910440 ACTIVE DC MODE, MSG-2910440 ACTIVE DC MODE, MSG-2911100 INACTV IC MODE. *S/D* SUSPECT FAULTY SPEED CONTROL UNIT. REPLACED ADP C1 LOGIC SPEED CONTROL UNIT PER MM 29-11-15-401, OP CHECKED GOOD. AC OK FOR SERVICE.