An air carrier medium large transport rolled back at the gate.

Attributes
ACN	256669
Time
Date	199311
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : msp
State Reference	MN
Altitude	agl bound lower : 0 agl bound upper : 0
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	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 : 14000 flight time type : 10000
ASRS Report	256669
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : private pilot : instrument pilot : commercial
Experience	flight time last 90 days : 180 flight time total : 9000 flight time type : 6000
ASRS Report	256668
Events
Anomaly	non adherence : far non adherence : published procedure other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Aircraft rolled backwards from gate after brake release. I had some confusion in receipt of 'chocks in' signal from marshaller. I now know he wanted me to know he was going to find some chocks and would be right back. The aircraft began to roll back as I was further distracted toward cabin. Reapplied brakes, trying to avoid too great a jolt. Passenger were in the aisle by then, but no one was bumped, upset, or hurt. The airplane did not hit or damage anything. I expect the parking sequence has become too routine. Release of the brakes should, of course, never be routine.

Original NASA ASRS Text

Title: AN ACR MLG ROLLED BACK AT THE GATE.

Narrative: ACFT ROLLED BACKWARDS FROM GATE AFTER BRAKE RELEASE. I HAD SOME CONFUSION IN RECEIPT OF 'CHOCKS IN' SIGNAL FROM MARSHALLER. I NOW KNOW HE WANTED ME TO KNOW HE WAS GOING TO FIND SOME CHOCKS AND WOULD BE RIGHT BACK. THE ACFT BEGAN TO ROLL BACK AS I WAS FURTHER DISTRACTED TOWARD CABIN. REAPPLIED BRAKES, TRYING TO AVOID TOO GREAT A JOLT. PAX WERE IN THE AISLE BY THEN, BUT NO ONE WAS BUMPED, UPSET, OR HURT. THE AIRPLANE DID NOT HIT OR DAMAGE ANYTHING. I EXPECT THE PARKING SEQUENCE HAS BECOME TOO ROUTINE. RELEASE OF THE BRAKES SHOULD, OF COURSE, NEVER BE ROUTINE.

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.