New software required for Garmin Xponder
Owners of Garmin GTX 330 and 330D transponders, which the FAA said are installed in about 1,300 airplanes, must upgrade the equiptment with new software (version 3.03 or later). The upgrade is to correct a problem with the transponder, which can in certain instances issue inaccurate replies to aircraft equipped with traffic-alerting devices. Garmin said it will reimburse GTX 330/330D owners the cost of one hour of labor to perform the update. Compliance is required by August 9.