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Airbus A320 series flight crew experienced a terrain warning descending to 10;000 feet approximately 9 NM east of kicdo during the ILS 12 at bzn. The aircraft was climbed to 11;000 feet and ATC confirmed that 10;000 feet was the correct altitude.
| Attributes | |
| ACN | 1427065 |
| Time | |
| Date | 201702 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | BZN.Airport |
| State Reference | MT |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Airbus 318/319/320/321 Undifferentiated |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | GPWS |
| Person 1 | |
| Function | First Officer Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Type 498 |
| Person 2 | |
| Function | Pilot Not Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Type 482 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Altitude Excursion From Assigned Altitude Inflight Event / Encounter CFTT / CFIT |
Narrative:
In the descent to bzn; we were given direct kicdo (IAF on ILS 12) and a descent to 10;000 MSL. Approximately 9-10 miles east of kicdo; we received a GPWS 'terrain; terrain' while IMC. I; as pilot flying; performed the GPWS escape maneuver and climbed up to 11;000 while the captain notified ATC and we were given a stop climb at 11k. The controller said he doesn't usually have anyone have any GPWS hits in that sector but also mentioned the MSA had recently changed in the past few months. We continued to fly the ILS to a full stop without any more incidents.
Original NASA ASRS Text
Title: Airbus A320 series flight crew experienced a terrain warning descending to 10;000 feet approximately 9 NM east of KICDO during the ILS 12 at BZN. The aircraft was climbed to 11;000 feet and ATC confirmed that 10;000 feet was the correct altitude.
Narrative: In the descent to BZN; we were given direct KICDO (IAF on ILS 12) and a descent to 10;000 MSL. Approximately 9-10 miles east of KICDO; we received a GPWS 'TERRAIN; TERRAIN' while IMC. I; as pilot flying; performed the GPWS escape maneuver and climbed up to 11;000 while the captain notified ATC and we were given a stop climb at 11k. The controller said he doesn't usually have anyone have any GPWS hits in that sector but also mentioned the MSA had recently changed in the past few months. We continued to fly the ILS to a full stop without any more incidents.
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.