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| Attributes | |
| ACN | 899820 | 
| Time | |
| Date | 201007 | 
| Local Time Of Day | 0601-1200 | 
| Place | |
| Locale Reference | ZZZ.Airport | 
| State Reference | US | 
| Aircraft 1 | |
| Make Model Name | Boeing Company Undifferentiated or Other Model | 
| Operating Under FAR Part | Part 121 | 
| Flight Phase | Parked | 
| Flight Plan | None | 
| Component | |
| Aircraft Component | Parking Brake | 
| Person 1 | |
| Function | Other / Unknown | 
| Person 2 | |
| Function | Other / Unknown | 
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Ground Event / Encounter Object Inflight Event / Encounter Object  | 
Narrative:
I was in the captain seat; taxiing aircraft to a gate. Upon entering the apron of the gate; I called out for brake pressure and received a response that it was normal (3000 psi). I then proceeded to the gate and was guided by the guide person; who then gave me the stop signal. I stopped the aircraft and set the brakes; which I confirmed by the EICAS message 'parking brakes' and the parking brake light. I then started my shutdown procedure. During my shutdown procedure I noticed a bump to the aircraft and observed the parking brake had become disengaged. At no time was I aware of any aircraft movement.
Original NASA ASRS Text
Title: Two mechanics repositioning a medium large jet to a gate failed to insure the parking brake was properly set and the aircraft rolled and impacted a jetway.
Narrative: I was in the captain seat; taxiing aircraft to a gate. Upon entering the apron of the gate; I called out for brake pressure and received a response that it was normal (3000 psi). I then proceeded to the gate and was guided by the guide person; who then gave me the stop signal. I stopped the aircraft and set the brakes; which I confirmed by the EICAS message 'parking brakes' and the parking brake light. I then started my shutdown procedure. During my shutdown procedure I noticed a bump to the aircraft and observed the parking brake had become disengaged. At no time was I aware of any aircraft movement.
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.