Small Transport; Low Wing; 2 Turbojet Eng
Flight Crew Multiengine; Flight Crew Instrument
Situational Awareness; Time Pressure; Troubleshooting; Confusion; Workload; Distraction
Aircraft Equipment Problem Less Severe; Airspace Violation All Types; Deviation - Track / Heading All Types; Inflight Event / Encounter Other / Unknown
Flight Crew Took Evasive Action
Equipment / Tooling; ATC Equipment / Nav Facility / Buildings; Aircraft; Environment - Non Weather Related
During inspection of HRL VDME for VOR MON (Minimum Operational Network) data collection; aircraft was operating along US/Mexican border. Crew was navigating using VFR techniques involving position determined by [the] application on iPad and reference to ground when terrain features were visible. At a time of increased workload; GPS position data was lost along with ground reference. Before positional awareness was re-gained; ATC advised of pending penetration of the Boca Chica TFR. Crew initiated immediate action to avoid the TFR. When well clear of the TFR; crew resumed inspection flight path.
During inspection of HRL VDME for VOR MON data collection; aircraft was operating along US/Mexican border. Crew was navigating using VFR techniques involving position determined by the application on iPad and reference to ground when terrain features were visible. At a time of increased workload; GPS position data was lost along with ground reference. Before positional awareness was re-gained; ATC advised of pending penetration of the Boca Chica TFR. Crew initiated immediate action to avoid the TFR. When well clear of the TFR; crew resumed inspection flight path.
While inspecting a VOR for data the PNF reported a loss of GPS signal. The pilot reported the aircraft was operating VFR but was relying on the GPS signals to avoid restricted airspace. ATC advised the pilot crew of the close penetration and the aircraft avoided the TFR.