B767 captain reported experiencing uncommanded aircraft movement at the gate after applying parking ...

Attributes
ACN	1633424
Time
Date	201903
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	B767 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Person 1
Function	Pilot Flying Captain
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 193 Flight Crew Type 229
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

The entire flight was non eventful. Upon blocking in at [the gate]; I set the parking brake and verified the EICAS (engine indication and crew alerting system) parking brake message was displayed. The flying first officer also verified the parking brake message was displayed. We shut down both engines and prepared to perform the parking checklist. Both the copilot and myself were taking down our ipads from the window mounts so we were heads down for a few seconds. The relief pilot called out that we were rolling back. I smoothly applied the brakes and stopped the aircraft. We rolled back approximately 10 feet. No one inside or outside the aircraft were contacted or injured in any way. No ground equipment; personnel or other aircraft were contacted or injured.

Original NASA ASRS Text

Title: B767 Captain reported experiencing uncommanded aircraft movement at the gate after applying parking brake.

Narrative: The entire flight was non eventful. Upon blocking in at [the gate]; I set the parking brake and verified the EICAS (Engine Indication and Crew Alerting System) parking brake message was displayed. The flying First Officer also verified the parking brake message was displayed. We shut down both engines and prepared to perform the parking checklist. Both the copilot and myself were taking down our IPADS from the window mounts so we were heads down for a few seconds. The Relief Pilot called out that we were rolling back. I smoothly applied the brakes and stopped the aircraft. We rolled back approximately 10 feet. No one inside or outside the aircraft were contacted or injured in any way. No ground equipment; personnel or other aircraft were contacted or injured.

Data retrieved from NASA's ASRS site 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.

B767 captain reported experiencing uncommanded aircraft movement at the gate after applying parking brake.