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Flight crew of air carrier medium large transport aircraft exceeded aircraft crosswind component limits during a CAT III approach.
| Attributes | |
| ACN | 236744 |
| Time | |
| Date | 199303 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : pit |
| State Reference | PA |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | landing other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : flight engineer pilot : commercial pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 50 flight time total : 13500 flight time type : 140 |
| ASRS Report | 236744 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : flight engineer pilot : instrument |
| Experience | flight time last 90 days : 250 flight time total : 10000 flight time type : 2000 |
| ASRS Report | 236033 |
| Events | |
| Anomaly | non adherence other other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Doing a CAT IIIA approach to runway 10L at pit I exceeded the crosswind limitations of the medium large transport which for CAT IIIA lndgs is 10 KTS. As we approached pit we were listening to ATIS and the winds were such that I asked the first officer to check if we were legal. I remember the winds to be reported as 07/16. The first officer just stated we were legal after looking at the charts. When we contacted the pit approach controller he stated winds to be 06/21. My reply was that this may 'change things' and we needed to look up the crosswind charts again. The first officer looked up the crosswind component again. He held the book up to me and had his finger pointing to crosswind component of 6 KTS. We continued the approach, landed, parked at the gate -- no problems at all. The trip was over so we all said goodbye, etc, and went our own ways. About 10 mins later the first officer ran me down saying we made a mistake. He was using the headwind charts instead of crosswind tables. My headwind, crosswind, and tailwind tables are now blown up and clearly marked!
Original NASA ASRS Text
Title: FLC OF ACR MLG ACFT EXCEEDED ACFT XWIND COMPONENT LIMITS DURING A CAT III APCH.
Narrative: DOING A CAT IIIA APCH TO RWY 10L AT PIT I EXCEEDED THE XWIND LIMITATIONS OF THE MLG WHICH FOR CAT IIIA LNDGS IS 10 KTS. AS WE APCHED PIT WE WERE LISTENING TO ATIS AND THE WINDS WERE SUCH THAT I ASKED THE FO TO CHK IF WE WERE LEGAL. I REMEMBER THE WINDS TO BE RPTED AS 07/16. THE FO JUST STATED WE WERE LEGAL AFTER LOOKING AT THE CHARTS. WHEN WE CONTACTED THE PIT APCH CTLR HE STATED WINDS TO BE 06/21. MY REPLY WAS THAT THIS MAY 'CHANGE THINGS' AND WE NEEDED TO LOOK UP THE XWIND CHARTS AGAIN. THE FO LOOKED UP THE XWIND COMPONENT AGAIN. HE HELD THE BOOK UP TO ME AND HAD HIS FINGER POINTING TO XWIND COMPONENT OF 6 KTS. WE CONTINUED THE APCH, LANDED, PARKED AT THE GATE -- NO PROBS AT ALL. THE TRIP WAS OVER SO WE ALL SAID GOODBYE, ETC, AND WENT OUR OWN WAYS. ABOUT 10 MINS LATER THE FO RAN ME DOWN SAYING WE MADE A MISTAKE. HE WAS USING THE HEADWIND CHARTS INSTEAD OF XWIND TABLES. MY HEADWIND, XWIND, AND TAILWIND TABLES ARE NOW BLOWN UP AND CLRLY MARKED!
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.