What was found
JFK INFLIGHT - LANDING GEAR WOULD NOT RETRACT. RETURNED TO JFK AND LANDED WITHOUT INCIDENT. REPLACED PROXIMITY BOX. SYSTEM GROUND CHECKED NORMAL OPERATION.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
JFK INFLIGHT - LANDING GEAR WOULD NOT RETRACT. RETURNED TO JFK AND LANDED WITHOUT INCIDENT. REPLACED PROXIMITY BOX. SYSTEM GROUND CHECKED NORMAL OPERATION.