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Pilot reported that ATC issued a terrain clearance warning while aircraft was turning in the vicinity of mountains.
| Attributes | |
| ACN | 1747490 |
| Time | |
| Date | 202006 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | JAC.Airport |
| State Reference | WY |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Challenger Jet Undifferentiated or Other Model |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Autopilot |
| Person 1 | |
| Function | Pilot Not Flying Captain |
| Qualification | Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy Deviation - Procedural Clearance Deviation - Track / Heading All Types Inflight Event / Encounter CFTT / CFIT |
Narrative:
Departing out of jac; clearance was GEYSR5 departure climb to 16;000 ft. Then as filed; we were to go out to nalsi crossing at 14;000 ft.; the turn was a very tight 180 degrees and the autopilot started turn before reaching the fix; at 11;800 ft. Was able to keep mountains in sight; and directed flying pilot to widen out turn radius and increase climb rate; same time tower acknowledges terrain clearance warning. We got no GPWS warnings and had plenty of airspace to compensate which I acknowledged to tower; there was no issue with ATC.my suggestion is to have nalsi a flyover fix; especially in IFR; or program the FMS to make it a fly over fix and add that to our briefing. There was weather moving in to the area but we were able to maintain visual with the mountain peaks to avoid. Rest of flight was uneventful.
Original NASA ASRS Text
Title: Pilot reported that ATC issued a terrain clearance warning while aircraft was turning in the vicinity of mountains.
Narrative: Departing out of JAC; clearance was GEYSR5 departure climb to 16;000 ft. then as filed; we were to go out to NALSI crossing at 14;000 ft.; the turn was a very tight 180 degrees and the autopilot started turn before reaching the fix; at 11;800 ft. was able to keep mountains in sight; and directed flying pilot to widen out turn radius and increase climb rate; same time tower acknowledges terrain clearance warning. We got no GPWS warnings and had plenty of airspace to compensate which I acknowledged to tower; there was no issue with ATC.My suggestion is to have NALSI a flyover fix; especially in IFR; or program the FMS to make it a fly over fix and add that to our briefing. There was weather moving in to the area but we were able to maintain visual with the mountain peaks to avoid. Rest of flight was uneventful.
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.