 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Air carrier medium large transport flight crew complains that notification of wind velocity change from what was advertised on ATIS came too late to prevent exceeding tailwind limitations on landing.
| Attributes | |
| ACN | 141186 |
| Time | |
| Date | 199004 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : dca |
| State Reference | DC |
| Altitude | msl bound lower : 600 msl bound upper : 600 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : dca |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | descent : approach landing 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 : 200 flight time total : 6000 flight time type : 1000 |
| ASRS Report | 141186 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | non adherence : far |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On short final at about 600', tower cleared us to land and gave the winds as 190 degrees at 12 KTS (ATIS winds were 200 degrees at 06). By being kept on approach control frequency until oxonn (4.6 mi from end of runway) we did not hear anyone else given the winds. Since there was a significant change in the winds it came as quite a surprise for us with no time to check tailwind component. Landing was uneventful. After landing and on taxi in we were able to check the wind component and realized a 12 KT tailwind was excessive. (Maximum tailwind for landing is 10 KTS). Corrective action: either switch us over sooner to get winds or put significant wind change on ATIS so that we have time to make a decision. Obviously with the wind speed and direction and the WX down to 2000 RVR the airport would have been closed since the minimums for 18 are much higher than 2000 RVR (ceiling was 200' to 300').
Original NASA ASRS Text
Title: ACR MLG FLT CREW COMPLAINS THAT NOTIFICATION OF WIND VELOCITY CHANGE FROM WHAT WAS ADVERTISED ON ATIS CAME TOO LATE TO PREVENT EXCEEDING TAILWIND LIMITATIONS ON LNDG.
Narrative: ON SHORT FINAL AT ABOUT 600', TWR CLRED US TO LAND AND GAVE THE WINDS AS 190 DEGS AT 12 KTS (ATIS WINDS WERE 200 DEGS AT 06). BY BEING KEPT ON APCH CTL FREQ UNTIL OXONN (4.6 MI FROM END OF RWY) WE DID NOT HEAR ANYONE ELSE GIVEN THE WINDS. SINCE THERE WAS A SIGNIFICANT CHANGE IN THE WINDS IT CAME AS QUITE A SURPRISE FOR US WITH NO TIME TO CHK TAILWIND COMPONENT. LNDG WAS UNEVENTFUL. AFTER LNDG AND ON TAXI IN WE WERE ABLE TO CHK THE WIND COMPONENT AND REALIZED A 12 KT TAILWIND WAS EXCESSIVE. (MAX TAILWIND FOR LNDG IS 10 KTS). CORRECTIVE ACTION: EITHER SWITCH US OVER SOONER TO GET WINDS OR PUT SIGNIFICANT WIND CHANGE ON ATIS SO THAT WE HAVE TIME TO MAKE A DECISION. OBVIOUSLY WITH THE WIND SPD AND DIRECTION AND THE WX DOWN TO 2000 RVR THE ARPT WOULD HAVE BEEN CLOSED SINCE THE MINIMUMS FOR 18 ARE MUCH HIGHER THAN 2000 RVR (CEILING WAS 200' TO 300').
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.