Safety
FAA Warns of Spurious TCAS Resolution Alerts
Although all instances to date have occurred in Europe, the FAA wants pilot to remain alert.

The FAA released Information for Operators bulletin 15005 last week that warns pilots of "potential spurious" Tcas resolution alerts (RAs) aboard aircraft equipped with Honeywell TPA-100B Tcas II version 7.1 RTCA/DO300-compliant hybrid surveillance units. Several spurious RAs have been reported by air navigation service providers in European airspace, but to date there have been no reported cases in U.S. airspace.