 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Citation latitude first officer reported e-gpws warning with 2000 ft. Of clearance from terrain and no conflict.
| Attributes | |
| ACN | 1671939 |
| Time | |
| Date | 201908 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Citation Latitude (C680A) |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Descent |
| Flight Plan | IFR |
| Person 1 | |
| Function | Pilot Flying First Officer |
| Qualification | Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine |
| Events | |
| Anomaly | Inflight Event / Encounter CFTT / CFIT |
Narrative:
During en-route descent into ZZZ to runway xx the e-gpws was activated. En-route from the east to ZZZ we queried ATC to start a descent into ZZZ as we were approaching approximately 20 nm from the field. They gave us a descent to 5;000 ft. I started a descent and had the field in sight as VMC conditions prevailed. We were also headed direct to zzzzz on the RNAV runway xx. I knew that we would need beyond the normal 3 degree descent so I expedited my descent. We were cleared for the visual runway xx. Due to rising terrain and the expedited descent the e-gpws activated 'sink rate' followed immediately by 'pull up' around 4000 ft. I then added power and started a climb. Once we confirmed terrain wasn't an issue I leveled off and continued the descent. During the event we were VMC and had all terrain in sight as well as the field. I believe the higher than normal descent rate coupled with the rising terrain and tower located south of our course is what activated the e-gpws. I don't believe at any time we were closer than 2;000 ft. To the terrain. The rest of the en-route descent; approach; and landing were uneventful.we should have asked ATC for a descent sooner or asked for a vector to lose some altitude. Although it was VMC I should have had the terrain display up so that I could have had better terrain awareness. I also could have elected to go further south to avoid the higher terrain just east of zzzzz.
Original NASA ASRS Text
Title: Citation Latitude First Officer reported E-GPWS warning with 2000 ft. of clearance from terrain and no conflict.
Narrative: During en-route descent into ZZZ to Runway XX the E-GPWS was activated. En-route from the east to ZZZ we queried ATC to start a descent into ZZZ as we were approaching approximately 20 nm from the field. They gave us a descent to 5;000 ft. I started a descent and had the field in sight as VMC conditions prevailed. We were also headed direct to ZZZZZ on the RNAV Runway XX. I knew that we would need beyond the normal 3 degree descent so I expedited my descent. We were cleared for the visual Runway XX. Due to rising terrain and the expedited descent the E-GPWS activated 'sink rate' followed immediately by 'pull up' around 4000 ft. I then added power and started a climb. Once we confirmed terrain wasn't an issue I leveled off and continued the descent. During the event we were VMC and had all terrain in sight as well as the field. I believe the higher than normal descent rate coupled with the rising terrain and tower located south of our course is what activated the E-GPWS. I don't believe at any time we were closer than 2;000 ft. to the terrain. The rest of the en-route descent; approach; and landing were uneventful.We should have asked ATC for a descent sooner or asked for a vector to lose some altitude. Although it was VMC I should have had the terrain display up so that I could have had better terrain awareness. I also could have elected to go further south to avoid the higher terrain just east of ZZZZZ.
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.