A320 flight crew has brake malfunction while taxiing for takeoff injuring a flight attendant.

Attributes
ACN	558103
Time
Date	200208
Day	Sat
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : sjc.airport
State Reference	CA
Altitude	agl single value : 0
Environment
Light	Dusk
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	A320
Operating Under FAR Part	Part 121
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time type : 438
ASRS Report	558103
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	cabin event other other anomaly other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : anomaly accepted
Consequence	other other
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

On taxi out both engines running. First officer did his after start flow and selected automatic brakes to maximum. This caused the aircraft to come to a rapid stop. Automatic brakes were deselected and braking was normal. We again tried to arm the automatic brakes to maximum and the aircraft once again came to an abrupt stop. We then found out that a flight attendant had suffered an ankle injury and needed medical attention. We then returned to the gate and called dispatch and maintenance. During our debrief the first officer said that he had failed to disarm the speed brakes after our taxi in. This could have caused a sequencing problem according to maintenance. This item should be considered as a checklist item in the future. In addition, on taxi in I noticed that the flaps had not been retracted and instructed the first officer to complete the after landing flow. The speed brake lever was apparently missed resulting in this incident.

Original NASA ASRS Text

Title: A320 FLC HAS BRAKE MALFUNCTION WHILE TAXIING FOR TKOF INJURING A FLT ATTENDANT.

Narrative: ON TAXI OUT BOTH ENGS RUNNING. FO DID HIS AFTER START FLOW AND SELECTED AUTO BRAKES TO MAX. THIS CAUSED THE ACFT TO COME TO A RAPID STOP. AUTO BRAKES WERE DESELECTED AND BRAKING WAS NORMAL. WE AGAIN TRIED TO ARM THE AUTO BRAKES TO MAX AND THE ACFT ONCE AGAIN CAME TO AN ABRUPT STOP. WE THEN FOUND OUT THAT A FLT ATTENDANT HAD SUFFERED AN ANKLE INJURY AND NEEDED MEDICAL ATTN. WE THEN RETURNED TO THE GATE AND CALLED DISPATCH AND MAINT. DURING OUR DEBRIEF THE FO SAID THAT HE HAD FAILED TO DISARM THE SPD BRAKES AFTER OUR TAXI IN. THIS COULD HAVE CAUSED A SEQUENCING PROB ACCORDING TO MAINT. THIS ITEM SHOULD BE CONSIDERED AS A CHKLIST ITEM IN THE FUTURE. IN ADDITION, ON TAXI IN I NOTICED THAT THE FLAPS HAD NOT BEEN RETRACTED AND INSTRUCTED THE FO TO COMPLETE THE AFTER LNDG FLOW. THE SPD BRAKE LEVER WAS APPARENTLY MISSED RESULTING IN THIS 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.