A319 flight crew reported the aircraft rolled back about 20 feet from the gate when the brakes were ...

Attributes
ACN	1536267
Time
Date	201804
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	A319
Operating Under FAR Part	Part 121
Flight Phase	Parked
Flight Plan	IFR
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument
Person 2
Function	Pilot Not Flying First Officer
Qualification	Flight Crew Instrument Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Conflict Ground Conflict Less Severe Deviation - Procedural Published Material / Policy

Narrative:

Upon arrival I failed to set the parking brake. I thought I had; but I had not. The aircraft rolled backward; I am guessing about 20 ft; before I noticed. I applied the brakes; and then set the parking brake. No passengers; crew; or ground crew were injured. No equipment was damaged. I failed to pay sufficient attention to detail.

Original NASA ASRS Text

Title: A319 flight crew reported the aircraft rolled back about 20 feet from the gate when the brakes were not properly set.

Narrative: Upon arrival I failed to set the parking brake. I thought I had; but I had not. The aircraft rolled backward; I am guessing about 20 ft; before I noticed. I applied the brakes; and then set the parking brake. No passengers; crew; or ground crew were injured. No equipment was damaged. I failed to pay sufficient attention to detail.

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.