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Automatic brakes activated on large transport aircraft taxiing at slow speed. Aircraft came to abrupt halt. No one injured.
| Attributes | |
| ACN | 123652 |
| Time | |
| Date | 198909 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : sea |
| State Reference | WA |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | ground other : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 14000 flight time type : 400 |
| ASRS Report | 123652 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | non adherence : published procedure other anomaly |
| 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:
Inadvertent application of autobrakes while taxiing onto runway for takeoff, resulting in a sudden stop from 2-3 KTS. SOP states that autobrakes switch should be armed only when the aircraft is stopped because of the possibility of this happened. Had this happened earlier in the taxi, F/a's could have been injured. This is the first time this has happened to me, despite disregarding the SOP warning most of the time, arming the autobrakes at very slow speed. It should be the last time, as I now will pay particular attention to arming the autobrakes only when the aircraft is stopped.
Original NASA ASRS Text
Title: AUTO BRAKES ACTIVATED ON LGT ACFT TAXIING AT SLOW SPEED. ACFT CAME TO ABRUPT HALT. NO ONE INJURED.
Narrative: INADVERTENT APPLICATION OF AUTOBRAKES WHILE TAXIING ONTO RWY FOR TKOF, RESULTING IN A SUDDEN STOP FROM 2-3 KTS. SOP STATES THAT AUTOBRAKES SWITCH SHOULD BE ARMED ONLY WHEN THE ACFT IS STOPPED BECAUSE OF THE POSSIBILITY OF THIS HAPPENED. HAD THIS HAPPENED EARLIER IN THE TAXI, F/A'S COULD HAVE BEEN INJURED. THIS IS THE FIRST TIME THIS HAS HAPPENED TO ME, DESPITE DISREGARDING THE SOP WARNING MOST OF THE TIME, ARMING THE AUTOBRAKES AT VERY SLOW SPD. IT SHOULD BE THE LAST TIME, AS I NOW WILL PAY PARTICULAR ATTN TO ARMING THE AUTOBRAKES ONLY WHEN THE ACFT IS STOPPED.
Data retrieved from NASA's ASRS site as of August 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.