37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 922049 |
Time | |
Date | 201012 |
Local Time Of Day | 1201-1800 |
Place | |
Locale Reference | ZZZZ.Airport |
State Reference | FO |
Environment | |
Flight Conditions | IMC |
Light | Daylight |
Aircraft 1 | |
Make Model Name | MD-11 |
Operating Under FAR Part | Part 121 |
Flight Phase | Landing |
Route In Use | Other Controlled |
Flight Plan | IFR |
Person 1 | |
Function | Relief Pilot Pilot Not Flying |
Experience | Flight Crew Last 90 Days 30 Flight Crew Total 5000 Flight Crew Type 1200 |
Person 2 | |
Function | Captain Pilot Not Flying |
Qualification | Flight Crew Air Transport Pilot (ATP) |
Experience | Flight Crew Last 90 Days 150 Flight Crew Total 12000 Flight Crew Type 2500 |
Events | |
Anomaly | Ground Event / Encounter Loss Of Aircraft Control |
Narrative:
Arrival ATIS indicated 170 meters overcast; 2;400 RVR; -03 C temperature; 1021 hpa; landing weight 478K pounds. Visibility and ceiling were better than reported via ATIS. Upon braking out of the clouds at 800 ft AGL; runway and touchdown zone was visible and bare pavement was seen in the touchdown zone; while the remainder of the runway was covered with snow. First officer was the flying pilot. Runway in use: runway 23R - 14;700 ft. Approach brief was very thorough and included a review of terrain; weather; approach criteria; navigation systems; braking reports; and go-around contingencies. Reported braking at airport was called 'medium'. After the event; it was determined actual braking was nil.aircraft met stabilized approach criteria and touched down within the touchdown zone. Auto brakes were preset to minimum and utilized to 60 KIAS; at which time; thrust reversers where stowed. Upon reverting to manual braking aircraft did not seem to lose much airspeed. Approaching the last 3;000 ft of remaining runway; first officer called for assistance with maximum brake application; as deceleration was minimal. Captain assisted in the application of full brake pedal pressure. With the aircraft gross weight of 478K pounds and what now appeared to be ice under the snow; it became apparent the aircraft was not decelerating fast enough.the captain immediately applied full reverse thrust on all three engines to a full stop. Since braking action was experienced to be nil due to ice under the snow covered runway; the captain decided to shut the aircraft engines down and be safely tugged to parking; rather than perform a 180 degree back-taxi turn on the runway in order to reach a taxiway.
Original NASA ASRS Text
Title: An MD-11 flight crew discovered braking action was nill after landing and required most of a three mile long runway to stop utilizing reverse thrust. Requested a tow to parking. ATIS had reported braking action as 'Medium'.
Narrative: Arrival ATIS indicated 170 meters overcast; 2;400 RVR; -03 C temperature; 1021 hPa; landing weight 478K LBS. Visibility and ceiling were better than reported via ATIS. Upon braking out of the clouds at 800 FT AGL; runway and touchdown zone was visible and bare pavement was seen in the touchdown zone; while the remainder of the runway was covered with snow. First Officer was the flying pilot. Runway in use: Runway 23R - 14;700 FT. Approach brief was very thorough and included a review of terrain; weather; approach criteria; navigation systems; braking reports; and go-around contingencies. Reported braking at airport was called 'MEDIUM'. After the event; it was determined actual braking was NIL.Aircraft met stabilized approach criteria and touched down within the touchdown zone. Auto brakes were preset to minimum and utilized to 60 KIAS; at which time; thrust reversers where stowed. Upon reverting to manual braking aircraft did not seem to lose much airspeed. Approaching the last 3;000 FT of remaining runway; First Officer called for assistance with maximum brake application; as deceleration was minimal. Captain assisted in the application of full brake pedal pressure. With the aircraft gross weight of 478K LBS and what now appeared to be ice under the snow; it became apparent the aircraft was not decelerating fast enough.The Captain immediately applied full reverse thrust on all three engines to a full stop. Since braking action was experienced to be NIL due to ice under the snow covered runway; the Captain decided to shut the aircraft engines down and be safely tugged to parking; rather than perform a 180 degree back-taxi turn on the runway in order to reach a taxiway.
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.