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B777 crew reports the inability of the autoplt to remain in holding airspace while holding at ock in 125 KT crosswind.
| Attributes | |
| ACN | 723895 |
| Time | |
| Date | 200701 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : eglc.airport |
| State Reference | FO |
| Altitude | msl bound lower : 10000 msl bound upper : 11000 |
| Environment | |
| Weather Elements | Turbulence Windshear |
| Aircraft 1 | |
| Controlling Facilities | artcc : egtt.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B777-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : holding |
| Route In Use | arrival : holding pattern |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : relief pilot |
| Experience | flight time last 90 days : 135 flight time total : 12460 flight time type : 1160 |
| ASRS Report | 723895 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 75 flight time total : 17000 flight time type : 3000 |
| ASRS Report | 724357 |
| Events | |
| Anomaly | inflight encounter : weather non adherence : clearance other spatial deviation |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : returned to intended or assigned course |
| Supplementary | |
| Problem Areas | Aircraft Weather |
| Primary Problem | Weather |
Narrative:
Approaching egll we were told to hold at ockham. 10 min delay. I was notifying the flight attendants to be seated; that we were going to hold; and there might be severe turbulence. The crew had entered the hold. The winds were out of the west at 122 KTS at 11000 ft. The aircraft autoplt had trouble holding the hold. ATC advised us that we were getting out of the holding airspace; to proceed direct ockham. We turn back to ockham and reentered the hold for about a half turn; then got direct ockham then turn to a 360 degree heading for vectors for the runway 27L localizer. The aircraft seem to have trouble with the strong wind holding the hold.
Original NASA ASRS Text
Title: B777 CREW RPTS THE INABILITY OF THE AUTOPLT TO REMAIN IN HOLDING AIRSPACE WHILE HOLDING AT OCK IN 125 KT XWIND.
Narrative: APCHING EGLL WE WERE TOLD TO HOLD AT OCKHAM. 10 MIN DELAY. I WAS NOTIFYING THE FLT ATTENDANTS TO BE SEATED; THAT WE WERE GOING TO HOLD; AND THERE MIGHT BE SEVERE TURB. THE CREW HAD ENTERED THE HOLD. THE WINDS WERE OUT OF THE W AT 122 KTS AT 11000 FT. THE ACFT AUTOPLT HAD TROUBLE HOLDING THE HOLD. ATC ADVISED US THAT WE WERE GETTING OUT OF THE HOLDING AIRSPACE; TO PROCEED DIRECT OCKHAM. WE TURN BACK TO OCKHAM AND REENTERED THE HOLD FOR ABOUT A HALF TURN; THEN GOT DIRECT OCKHAM THEN TURN TO A 360 DEG HDG FOR VECTORS FOR THE RWY 27L LOC. THE ACFT SEEM TO HAVE TROUBLE WITH THE STRONG WIND HOLDING THE HOLD.
Data retrieved from NASA's ASRS site as of January 2009 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.