 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
GPWS activated when aircraft was in descent. Flight crew executed climb to 6000 ft. It is possible that aircraft descent rate activated the GPWS due to closure rate.
| Attributes | |
| ACN | 324113 |
| Time | |
| Date | 199512 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : tri |
| State Reference | TN |
| Altitude | msl bound lower : 5400 msl bound upper : 6000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : tri tracon : bos |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 60 flight time total : 6000 flight time type : 500 |
| ASRS Report | 324113 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude other anomaly other other spatial deviation |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Supplementary | |
| Air Traffic Incident | other |
Narrative:
While on radar vectors for a visual approach for runway 23 at tri, we entered an overcast at 6000 ft MSL and continued our descent to our assigned altitude of 5400 ft. As we were leveling off at 5400 ft in IMC we got a GPWS 'pull up' command. We went to maximum power and climbed out to 6000 ft and VMC. We notified ATC as soon as practical and requested an ILS approach to runway 23. This approach was executed with no further problems.
Original NASA ASRS Text
Title: GPWS ACTIVATED WHEN ACFT WAS IN DSCNT. FLC EXECUTED CLB TO 6000 FT. IT IS POSSIBLE THAT ACFT DSCNT RATE ACTIVATED THE GPWS DUE TO CLOSURE RATE.
Narrative: WHILE ON RADAR VECTORS FOR A VISUAL APCH FOR RWY 23 AT TRI, WE ENTERED AN OVCST AT 6000 FT MSL AND CONTINUED OUR DSCNT TO OUR ASSIGNED ALT OF 5400 FT. AS WE WERE LEVELING OFF AT 5400 FT IN IMC WE GOT A GPWS 'PULL UP' COMMAND. WE WENT TO MAX PWR AND CLBED OUT TO 6000 FT AND VMC. WE NOTIFIED ATC AS SOON AS PRACTICAL AND REQUESTED AN ILS APCH TO RWY 23. THIS APCH WAS EXECUTED WITH NO FURTHER PROBS.
Data retrieved from NASA's ASRS site as of July 2007 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.