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CE560 flight crew reported a loss of GPS signal west of llo due to military jamming at the white sands missile range. They were vectored by ATC to llo and the KIDDZ2 arrival to hou. During the arrival; the aahzz crossing restriction of 10000 feet was overshot due to unknown automation issues.
| Attributes | |
| ACN | 1348884 |
| Time | |
| Date | 201604 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | I90.TRACON |
| State Reference | TX |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Citation Excel (C560XL) |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Initial Approach |
| Route In Use | STAR KIDDZ2 |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | GPS & Other Satellite Navigation |
| Person 1 | |
| Function | Pilot Not Flying First Officer |
| Qualification | Flight Crew Flight Engineer Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Instructor |
| Experience | Flight Crew Last 90 Days 90 Flight Crew Total 27500 Flight Crew Type 75 |
| Person 2 | |
| Function | Captain Pilot Flying |
| Experience | Flight Crew Last 90 Days 60 Flight Crew Total 8500 Flight Crew Type 1200 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Altitude Crossing Restriction Not Met Deviation - Altitude Overshoot Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy |
Narrative:
Center cleared us direct to llo after having lost GPS signal approximately 200 miles east of abq due to jamming from white sands missile range. Clearance after abq read direct llo KIDDZ2 to hou. After crossing llo flew the lateral portion in accordance with ATC instructions. Eventually we were cleared via the KIDDZ2 to hou. The nfp (sic) received the ATIS and programmed the RWY4 approach and transition along with the bottom altitude of 6;000 per the KIDDZ2 star. The captain engaged VNAV and both pilots confirmed it was engaged and captured. The aircraft began the descent on target via the arrival meeting all altitude restrictions. Northwest of aahzz we allowed the aircraft to descend below 10000. At this point ATC instructed us to maintain 10;000 and queried us about descending via the arrival. The captain replied in the affirmative and apologized to which the controller replied there were no conflicts. We continued to an uneventful landing at hou.
Original NASA ASRS Text
Title: CE560 flight crew reported a loss of GPS signal west of LLO due to military jamming at the White Sands Missile Range. They were vectored by ATC to LLO and the KIDDZ2 Arrival to HOU. During the arrival; the AAHZZ crossing restriction of 10000 feet was overshot due to unknown automation issues.
Narrative: Center cleared us direct to LLO after having lost GPS signal approximately 200 miles east of ABQ due to jamming from White Sands Missile Range. Clearance after ABQ read direct LLO KIDDZ2 to HOU. After crossing LLO flew the lateral portion in accordance with ATC instructions. Eventually we were cleared via the KIDDZ2 to HOU. The NFP (SIC) received the ATIS and programmed the RWY4 approach and transition along with the bottom altitude of 6;000 per the KIDDZ2 Star. The captain engaged VNAV and both pilots confirmed it was engaged and captured. The aircraft began the descent on target via the arrival meeting all altitude restrictions. Northwest of AAHZZ we allowed the aircraft to descend below 10000. At this point ATC instructed us to maintain 10;000 and queried us about descending via the arrival. The Captain replied in the affirmative and apologized to which the controller replied there were no conflicts. We continued to an uneventful landing at HOU.
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.