What was found
CAPTAIN'S OPEN SPEED BUG STUCK AT 171, WILL NOT CHANGE. DIVERTED, LANDING UNEVENTFUL. REPLACED NR 1 INDEX CONTROL PANEL, PERFORMED OPERATIONAL TEST IAW TC 6316103, ALL CHECKED GOOD. RETURNED TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CAPTAIN'S OPEN SPEED BUG STUCK AT 171, WILL NOT CHANGE. DIVERTED, LANDING UNEVENTFUL. REPLACED NR 1 INDEX CONTROL PANEL, PERFORMED OPERATIONAL TEST IAW TC 6316103, ALL CHECKED GOOD. RETURNED TO SERVICE.