A320 captain had a distraction and did not get the parking brakes set as requested by the pushback crew. The aircraft moved slightly as the tow bar was being disconnected.

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Attributes
ACN	608350
Time
Date	200402
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	tower : zzz.tower
Operator	common carrier : air carrier
Make Model Name	A320
Operating Under FAR Part	Part 121
Flight Phase	ground : preflight ground : parked
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 180 flight time total : 5000 flight time type : 1800
ASRS Report	608350
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	non adherence : published procedure non adherence : company policies other anomaly
Independent Detector	other other : 3
Resolutory Action	flight crew : regained aircraft control flight crew : became reoriented
Consequence	other Other
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft
Primary Problem	Flight Crew Human Performance

Narrative:

During pushback/engine start, the pushback crew requested for me to set the parking brake. At that time, a spurious ECAM message made a ding as I was setting the brake and checking the gauge for altitude/brake pressure. This was during the first engine start cycle. I did not get the parking brake handle in the set detent and my eyes went to the engine warning display. The brake did not get set as I intended and I made the call 'brakes set pressure normal.' as the push crew went to disconnect the tow bar, they noticed the airplane begin to move and then transmitted, 'captain set the brake.' I quickly checked the parking brake handle and it was not in the detent. I then moved it into the set detent and the airplane stopped. The airplane only moved a few inches and I asked if they were ok. The pushback crew then finished up the remaining pushback per SOP without incident.

Original NASA ASRS Text

Title: A320 CAPT HAD A DISTR AND DID NOT GET THE PARKING BRAKES SET AS REQUESTED BY THE PUSHBACK CREW. THE ACFT MOVED SLIGHTLY AS THE TOW BAR WAS BEING DISCONNECTED.

Narrative: DURING PUSHBACK/ENG START, THE PUSHBACK CREW REQUESTED FOR ME TO SET THE PARKING BRAKE. AT THAT TIME, A SPURIOUS ECAM MESSAGE MADE A DING AS I WAS SETTING THE BRAKE AND CHKING THE GAUGE FOR ALT/BRAKE PRESSURE. THIS WAS DURING THE FIRST ENG START CYCLE. I DID NOT GET THE PARKING BRAKE HANDLE IN THE SET DETENT AND MY EYES WENT TO THE ENG WARNING DISPLAY. THE BRAKE DID NOT GET SET AS I INTENDED AND I MADE THE CALL 'BRAKES SET PRESSURE NORMAL.' AS THE PUSH CREW WENT TO DISCONNECT THE TOW BAR, THEY NOTICED THE AIRPLANE BEGIN TO MOVE AND THEN XMITTED, 'CAPT SET THE BRAKE.' I QUICKLY CHKED THE PARKING BRAKE HANDLE AND IT WAS NOT IN THE DETENT. I THEN MOVED IT INTO THE SET DETENT AND THE AIRPLANE STOPPED. THE AIRPLANE ONLY MOVED A FEW INCHES AND I ASKED IF THEY WERE OK. THE PUSHBACK CREW THEN FINISHED UP THE REMAINING PUSHBACK PER SOP WITHOUT INCIDENT.

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.