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HS125 captain experiences loss of FMS/GPS navigation capability shortly after takeoff from iad. Radar vectors are requested from pct. Thirty minutes after takeoff full navigation capability is regained.
| Attributes | |
| ACN | 1278457 |
| Time | |
| Date | 201507 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | IAD.Airport |
| State Reference | DC |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | HS 125 Series |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Initial Climb |
| Route In Use | SID BULRN1 |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | FMS/FMC |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 25 Flight Crew Total 6000 Flight Crew Type 1800 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Clearance Deviation - Track / Heading All Types |
Narrative:
During a SID departure (BULRN1 RNAV) we lost FMS/GPS navigation capability. We were unable to navigate via FMS/GPS immediately after departure. ATC was notified. Unable to find information in the QRH to resolve the issue. ATC issued radar vectors to the next intersection on the RNAV departure. ATC then issued radar vectors to a VOR along the course of flight. Due to the distance from sot VOR we were unable to navigate to the VOR. ATC was advised and we continued to with radar vectors to the VOR. After about 30 minutes the non-pilot flying was able to reset the GPS and reinitialize our position. We had no further issues with GPS navigation for the duration of the flight.
Original NASA ASRS Text
Title: HS125 Captain experiences loss of FMS/GPS navigation capability shortly after takeoff from IAD. Radar vectors are requested from PCT. Thirty minutes after takeoff full navigation capability is regained.
Narrative: During a SID departure (BULRN1 RNAV) we lost FMS/GPS Navigation capability. We were unable to navigate VIA FMS/GPS immediately after departure. ATC was notified. Unable to find information in the QRH to resolve the issue. ATC issued radar vectors to the next intersection on the RNAV departure. ATC then issued radar vectors to a VOR along the course of flight. Due to the distance from SOT VOR we were unable to navigate to the VOR. ATC was advised and we continued to with radar vectors to the VOR. After about 30 minutes the non-pilot flying was able to reset the GPS and reinitialize our position. We had no further issues with GPS navigation for the duration of the flight.
Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.