What was found
ORD - FLT 4387 - LANDING GEAR WOULD NOT RETRACT. REMOVED AND REPLACED TWO RIGHT MAIN LANDING GEAR PROXIMITY SWITCHES. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. REF: OPER CONTROL NR 2000ZZZX167. (X)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ORD - FLT 4387 - LANDING GEAR WOULD NOT RETRACT. REMOVED AND REPLACED TWO RIGHT MAIN LANDING GEAR PROXIMITY SWITCHES. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. REF: OPER CONTROL NR 2000ZZZX167. (X)