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A320 captain reports uncommanded brake application after restarting number 2 engine during a ground delay.
| Attributes | |
| ACN | 747099 |
| Time | |
| Date | 200707 |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : iad.airport |
| State Reference | DC |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| ASRS Report | 747099 |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : published procedure |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
After pushback and during taxi; advised to expect 15 min delay. Shut #2 engine down and set parking brake. After #2 engine restart rolled slightly ahead and brakes came on causing 2 flight attendants to lose footing and both were injured. Flight attendants said they were ok to continue. I believe I had pressure on the brake pedals when #2 engine was shut down; causing the brake system to remember that and reapply brakes upon restart.
Original NASA ASRS Text
Title: A320 CAPTAIN REPORTS UNCOMMANDED BRAKE APPLICATION AFTER RESTARTING NUMBER 2 ENGINE DURING A GROUND DELAY.
Narrative: AFTER PUSHBACK AND DURING TAXI; ADVISED TO EXPECT 15 MIN DELAY. SHUT #2 ENG DOWN AND SET PARKING BRAKE. AFTER #2 ENG RESTART ROLLED SLIGHTLY AHEAD AND BRAKES CAME ON CAUSING 2 FLT ATTENDANTS TO LOSE FOOTING AND BOTH WERE INJURED. FLT ATTENDANTS SAID THEY WERE OK TO CONTINUE. I BELIEVE I HAD PRESSURE ON THE BRAKE PEDALS WHEN #2 ENG WAS SHUT DOWN; CAUSING THE BRAKE SYS TO REMEMBER THAT AND REAPPLY BRAKES UPON RESTART.
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.