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A md-80 during slow taxi, under 5 KTS, had the automatic braking system activated stopping the airplane. Retested system tested ok. Entered in log.
| Attributes | |
| ACN | 566698 |
| Time | |
| Date | 200211 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : ord.airport |
| State Reference | IL |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Controlling Facilities | tower : dtw.tower |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Super 80 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain |
| Qualification | pilot : atp |
| ASRS Report | 566698 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : auto braking armed light other flight crewa other flight crewb |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | other other |
| Supplementary | |
| Problem Areas | Aircraft Chart Or Publication Flight Crew Human Performance |
| Primary Problem | Aircraft |
Narrative:
On taxi out for takeoff after abs was selected to the takeoff position and armed the abs system activated and brought the aircraft to an abrupt stop. Taxi speed at the time was under 5 KTS. Both reversers were stowed and all other system and conditions appeared normal. We tested the antiskid and abs system per the OM and both checked good. All passenger were reported by the flight attendants to be seated with seatbelts fastened at the time of the incident. After consultation with the flight attendants as to the passenger conditions, it was determined that 1 female passenger in the main cabin claimed to have arthritis in her neck and that the incident had caused her to whip her neck -- but she felt she was okay to continue the flight. During cruise the first officer visited with the referenced passenger after a trip to the lavatory and he was told she was ok. The rest of the flight was very smooth and uneventful. En route to dfw I decided to report the incident in the log even though all system checked normal.
Original NASA ASRS Text
Title: A MD-80 DURING SLOW TAXI, UNDER 5 KTS, HAD THE AUTOMATIC BRAKING SYS ACTIVATED STOPPING THE AIRPLANE. RETESTED SYS TESTED OK. ENTERED IN LOG.
Narrative: ON TAXI OUT FOR TKOF AFTER ABS WAS SELECTED TO THE TKOF POS AND ARMED THE ABS SYS ACTIVATED AND BROUGHT THE ACFT TO AN ABRUPT STOP. TAXI SPD AT THE TIME WAS UNDER 5 KTS. BOTH REVERSERS WERE STOWED AND ALL OTHER SYS AND CONDITIONS APPEARED NORMAL. WE TESTED THE ANTISKID AND ABS SYS PER THE OM AND BOTH CHKED GOOD. ALL PAX WERE RPTED BY THE FLT ATTENDANTS TO BE SEATED WITH SEATBELTS FASTENED AT THE TIME OF THE INCIDENT. AFTER CONSULTATION WITH THE FLT ATTENDANTS AS TO THE PAX CONDITIONS, IT WAS DETERMINED THAT 1 FEMALE PAX IN THE MAIN CABIN CLAIMED TO HAVE ARTHRITIS IN HER NECK AND THAT THE INCIDENT HAD CAUSED HER TO WHIP HER NECK -- BUT SHE FELT SHE WAS OKAY TO CONTINUE THE FLT. DURING CRUISE THE FO VISITED WITH THE REFERENCED PAX AFTER A TRIP TO THE LAVATORY AND HE WAS TOLD SHE WAS OK. THE REST OF THE FLT WAS VERY SMOOTH AND UNEVENTFUL. ENRTE TO DFW I DECIDED TO RPT THE INCIDENT IN THE LOG EVEN THOUGH ALL SYS CHKED NORMAL.
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.