Collins Aerospace says a software problem that caused a loss of GPS in some avionics systems the week of June 9 “will no longer occur” beginning June 16 at midnight universal coordinated time (UTC), but “further action” will be needed to put locked systems back in service.
The company issued a status update to its business-aircraft and airline customers on the problem identified in avionics systems using its GPS-4000S (P/N 822-2189-100) and GLU-2100 multi-mode receiver (P/N 822-2532-100).
The status update added that “further action will be required on many affected aircraft,” and that Collins Aerospace was working to develop a solution, and software updates.
The “ongoing” disruption has produced “nationwide operational effects,” and affects “several business aircraft types equipped with Collins Pro Line 4, Pro Line 21 and Pro Line Fusion avionics,” according to the National Business Aviation Association. Loss of GPS may be accompanied by disruption of Automatic Dependent Surveillance-Broadcast (ADS-B) information being sent to an aircraft’s transponder, NBAA said.
It noted that the FAA issued two “blanket exemptions for affected aircraft,” permitting continued flights using “traditional airways and/or navaids” if GPS is unavailable or flying at or below FL280 (excluding reduced vertical separation minimum, or RVSM, airspace) until the problem is resolved.
The status update sent by Patrick J. Cosgrove, Collins Aerospace aftermarket director for business and regional avionics, included two recommendations:
It suggested that customers contact their Collins Aerospace representative or local Collins customer support engineer with questions, or to visit the Collins Aerospace website for more information.