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Flight crew of an light transport experienced a windshear 20 mi out on arrival causing a loss of 45 KTS airspeed and a loss of 500 ft of altitude.
| Attributes | |
| ACN | 324270 |
| Time | |
| Date | 199512 |
| Day | Mon |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : atl |
| State Reference | GA |
| Altitude | msl bound lower : 5000 msl bound upper : 5000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : atl |
| Operator | common carrier : air carrier |
| Make Model Name | Brasilia EMB-120 All Series |
| Operating Under FAR Part | Part 135 |
| Navigation In Use | Other |
| Flight Phase | descent : approach descent other |
| Route In Use | arrival other enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 240 flight time total : 11000 flight time type : 3800 |
| ASRS Report | 324270 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude inflight encounter : weather other anomaly |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : exited adverse environment flight crew : returned to intended course or assigned course flight crew : regained aircraft control |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Weather |
| Air Traffic Incident | Pilot Deviation other |
Narrative:
While on approach in atl to runway 8L encountered windshear, loss of 45 KIAS for more than 30 seconds, with a loss of 500 ft at full power, followed by an increase of 45 KIAS plus 300 ft. Informed ATC we were unable to hold altitude. The only PIREP we heard was one of moderate turbulence.
Original NASA ASRS Text
Title: FLC OF AN LTT EXPERIENCED A WINDSHEAR 20 MI OUT ON ARR CAUSING A LOSS OF 45 KTS AIRSPD AND A LOSS OF 500 FT OF ALT.
Narrative: WHILE ON APCH IN ATL TO RWY 8L ENCOUNTERED WINDSHEAR, LOSS OF 45 KIAS FOR MORE THAN 30 SECONDS, WITH A LOSS OF 500 FT AT FULL PWR, FOLLOWED BY AN INCREASE OF 45 KIAS PLUS 300 FT. INFORMED ATC WE WERE UNABLE TO HOLD ALT. THE ONLY PIREP WE HEARD WAS ONE OF MODERATE TURB.
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.