What was found
FLT 7989 - IAD - LANDING GEAR AIR/GROUND FAILURE MESSAGE ON THE EICAS. MAINTENANCE REMOVED AND REPLACED THE LEFT NR 2 AND RIGHT NR 2 MAIN LANDING GEAR WOW SWITCHES. MAINTENANCE GEAR SWING OPERATION CHECKED GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLT 7989 - IAD - LANDING GEAR AIR/GROUND FAILURE MESSAGE ON THE EICAS. MAINTENANCE REMOVED AND REPLACED THE LEFT NR 2 AND RIGHT NR 2 MAIN LANDING GEAR WOW SWITCHES. MAINTENANCE GEAR SWING OPERATION CHECKED GOOD.