As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ADP LOW PRESS LIGHT AND EICAS MSG ON TAKEOFF DURING GEAR RETRACTION & FLAPS 5 TO 1. REPORTED BY CREW. REMOVED AND REPLACED ADP. NO HELP. STILL NEED TO LEAK CHECK, NEEDS FURTHER TROUBLESHOOTING. REPLACED MOD. AIR DRIVEN PUMP AND ADP REG AND SHUTOFF VALVES (3214334-3-33). LEAK AND OPS CHECK NORMAL.