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Air carrier reporter experiences windshear while landing at cos just prior to accident of another air carrier on final approach.
| Attributes | |
| ACN | 172421 |
| Time | |
| Date | 199103 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : cos |
| State Reference | CO |
| Altitude | agl bound lower : 500 agl bound upper : 500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : cos tower : sea |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | descent : approach |
| Route In Use | arrival other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 10000 flight time type : 3000 |
| ASRS Report | 172421 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | inflight encounter other other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : exited adverse environment |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
Narrative:
Windshear at cos on 3/sun/91. Winds reported on surface at 300/27 G37. Also on ATIS LLWS in effect. On final approach to runway 35 at 500', we had a 15 plus KT loss and at 100' we had a 15-20 KT gain. Kept what we had and landed. Power settings were not adjusted to chase the speed. We touched down at our target of reference plus 20 KTS. At 1500-2000' from the end, turned off at taxiway A1. Other than the previous described event, flight was uneventful. This report is being filed due to the fact we were the flight that took off just after air carrier flight crashed on final to runway 35 at cos. After we landed we notified cos tower of our windshear encounter. We blocked into gate at xa:05Z. We blocked out of cos on flight at xa:40Z. Wheels up time for den was xa:52Z. Air carrier flight crashed at approximately xa:47Z.
Original NASA ASRS Text
Title: ACR REPORTER EXPERIENCES WINDSHEAR WHILE LNDG AT COS JUST PRIOR TO ACCIDENT OF ANOTHER ACR ON FINAL APCH.
Narrative: WINDSHEAR AT COS ON 3/SUN/91. WINDS RPTED ON SURFACE AT 300/27 G37. ALSO ON ATIS LLWS IN EFFECT. ON FINAL APCH TO RWY 35 AT 500', WE HAD A 15 PLUS KT LOSS AND AT 100' WE HAD A 15-20 KT GAIN. KEPT WHAT WE HAD AND LANDED. PWR SETTINGS WERE NOT ADJUSTED TO CHASE THE SPD. WE TOUCHED DOWN AT OUR TARGET OF REF PLUS 20 KTS. AT 1500-2000' FROM THE END, TURNED OFF AT TXWY A1. OTHER THAN THE PREVIOUS DESCRIBED EVENT, FLT WAS UNEVENTFUL. THIS RPT IS BEING FILED DUE TO THE FACT WE WERE THE FLT THAT TOOK OFF JUST AFTER ACR FLT CRASHED ON FINAL TO RWY 35 AT COS. AFTER WE LANDED WE NOTIFIED COS TWR OF OUR WINDSHEAR ENCOUNTER. WE BLOCKED INTO GATE AT XA:05Z. WE BLOCKED OUT OF COS ON FLT AT XA:40Z. WHEELS UP TIME FOR DEN WAS XA:52Z. ACR FLT CRASHED AT APPROX XA:47Z.
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.