As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON THE T/O ROLL CA EADI & EHSI -FLICKERING- THE RUNWAY WAS BUMPY THE PROBLEM STOPPED JUST AFTER THE WHEELS CAME UP, IT STARTED AFTER 100 KIAS SAME AS WRITE UP NR 2 LIKE SOMETHING WAS LOOSE & THEN THE BUMPS EFFECTED IT. THE PROBLEM REOCURRED ON LND BACK IN DTW AGAIN WENT AWAY AT LOW SPEEDS. REMOVED AND REPLACED NR 1 DPU, ALL CHECKS GOOD.