As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
43 MINUTES INTO FLIGHT, VARNR WOULD NOT REMAIN IN NORMAL MODE AND FLI NEEDLES FLUCTUATED WILDLY WHILE NORMAL WAS SELECTED ON VARNR MODE SELECT SWITCH. WHEN SWITCH WAS IN MANUAL MODE, NEEDLES REMAINED STABLE. REPLACED VARTOMS CONTROL BOX IAW AMM 76-13-00, 4-1. MTF COMPLETE IAW 05-60-00, 6-10 ADJUSTMENTS MADE ALL CHECKS PASS BOTH HOVER AND ALT.