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B777 captain discovered they had made a 180-degree turn on a 150 foot wide runway when the minimum turn radius is listed at 156FT.
| Attributes | |
| ACN | 842178 |
| Time | |
| Date | 200907 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Make Model Name | B777 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Taxi |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 200 Flight Crew Total 21000 Flight Crew Type 1700 |
| Events | |
| Anomaly | ATC Issue All Types Deviation - Procedural Published Material / Policy Ground Event / Encounter Other / Unknown |
Narrative:
Tiring evening: dispatch overloaded with weather and diversion issues; had to request our over-water flight plan several times; then further delay due to weather and runway changes. We were given multiple challenging taxi instructions including turning tight corners. Then ATC (ground/tower) cleared us to backtrack runway xxl and make 180! Moved to edge of runway; slowed to 8 mph and gently; but firmly; applied full left tiller. Cockpit moved over edge of runway markings. Apparently no harm done! Departed without incident. Once at cruise altitude reviewed minimum turning radius of 156 ft and realized the runway is 150 ft wide. Did post flight inspection of landing gear on arrival (including mechanic) and found no damage. Will be more careful next time!
Original NASA ASRS Text
Title: B777 Captain discovered they had made a 180-degree turn on a 150 foot wide runway when the minimum turn radius is listed at 156FT.
Narrative: Tiring evening: dispatch overloaded with weather and diversion issues; had to request our over-water flight plan several times; then further delay due to weather and runway changes. We were given multiple challenging taxi instructions including turning tight corners. Then ATC (Ground/Tower) cleared us to backtrack Runway XXL and make 180! Moved to edge of Runway; slowed to 8 MPH and gently; but firmly; applied full left tiller. Cockpit moved over edge of runway markings. Apparently no harm done! Departed without incident. Once at cruise altitude reviewed minimum turning radius of 156 FT and realized the runway is 150 FT wide. Did post flight inspection of landing gear on arrival (including mechanic) and found no damage. Will be more careful next time!
Data retrieved from NASA's ASRS site as of April 2012 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.