<< >> NASA ASRS Report 520572, August 2001

An A320 captain prior to departure from den, released the parking brake prematurely without the ground crew's concurrence.

Attributes
ACN	520572
Time
Date	200108
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : den.airport
State Reference	CO
Altitude	agl single value : 0
Aircraft 1
Controlling Facilities	tower : lax.tower
Operator	common carrier : air carrier
Make Model Name	A320
Operating Under FAR Part	Part 121
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 : 175 flight time total : 13000 flight time type : 1995
ASRS Report	520572
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	non adherence : published procedure non adherence : company policies other anomaly other
Independent Detector	other flight crewa
Resolutory Action	other
Consequence	other
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

In my haste to secure an on-time departure, I prematurely released the parking brake without the pushback mechanic's concurrence. When I called him on the interphone to release the brakes I was expecting his answer to be yes but his response was not until pushback clearance was received. I delayed our departure just a few mins to accommodate some non revenue employee travelers against the agent's wishes. This brake release early occurred because I was trying to secure an on-time departure while filling up all the seats. I could have better utilized my resources to prevent this situation. At no time did the aircraft move prematurely and I immediately set the parking brake when I realized my error. I believe shortcutting SOP's is never worth it to save time and I won't allow myself to be in this hurry up mode again during pushback.

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Original NASA ASRS Text

Title: AN A320 CAPT PRIOR TO DEP FROM DEN, RELEASED THE PARKING BRAKE PREMATURELY WITHOUT THE GND CREW'S CONCURRENCE.

Narrative: IN MY HASTE TO SECURE AN ON-TIME DEP, I PREMATURELY RELEASED THE PARKING BRAKE WITHOUT THE PUSHBACK MECH'S CONCURRENCE. WHEN I CALLED HIM ON THE INTERPHONE TO RELEASE THE BRAKES I WAS EXPECTING HIS ANSWER TO BE YES BUT HIS RESPONSE WAS NOT UNTIL PUSHBACK CLRNC WAS RECEIVED. I DELAYED OUR DEP JUST A FEW MINS TO ACCOMMODATE SOME NON REVENUE EMPLOYEE TRAVELERS AGAINST THE AGENT'S WISHES. THIS BRAKE RELEASE EARLY OCCURRED BECAUSE I WAS TRYING TO SECURE AN ON-TIME DEP WHILE FILLING UP ALL THE SEATS. I COULD HAVE BETTER UTILIZED MY RESOURCES TO PREVENT THIS SIT. AT NO TIME DID THE ACFT MOVE PREMATURELY AND I IMMEDIATELY SET THE PARKING BRAKE WHEN I REALIZED MY ERROR. I BELIEVE SHORTCUTTING SOP'S IS NEVER WORTH IT TO SAVE TIME AND I WON'T ALLOW MYSELF TO BE IN THIS HURRY UP MODE AGAIN DURING PUSHBACK.

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.