As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TEST FLIGHT, PULLING CBZ25 AND Z26 DEPLOYED RAT BUT DID NOT SHOW HYD PRESSURE TO BLUE SYSTEM. EMERGENCY GEN DID NOT WORK SINCE NO HYD PRESSURE. PUSH MAN RAT BUTTONS BUT NO CHANGE. FOUND THE GROUND CHECK MODULE FAILED. REPLACED GROUND CHECK MODULE. OPS TESTED NORMAL.