An airbus 300 on landing roll brakes #2 and #6 locked up causing aircraft yawing and jolting chronic problem caused by brake hydraulic lines crossed at brakes.

Home

Browse by month

Random

Latest

About

Contact

Attributes
ACN	478538
Time
Date	200007
Day	Sat
Local Time Of Day	0601 To 1200
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	A300
Operating Under FAR Part	Part 121
Flight Phase	landing : roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	478538
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : far non adherence : published procedure
Independent Detector	aircraft equipment other aircraft equipment : normal brake temp indication other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	other other
Factors
Maintenance	contributing factor : schedule pressure performance deficiency : repair performance deficiency : scheduled maintenance performance deficiency : testing performance deficiency : fault isolation performance deficiency : inspection
Supplementary
Problem Areas	Aircraft Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

Upon landing sju main wheel brakes #2 and #6 appeared to lock. Aircraft jolted and yawed. Main wheel brakes #2 and #6 temperatures read 400 degrees C, other brakes 55-65 degrees C. Captain did not apply brakes until aircraft below 60 KTS. Aircraft has recent history of brakes #2 and #6 malfunction. Callback conversation with reporter revealed the following information: the reporter stated this airplane had a maintenance history on the normal braking system. The reporter said the airplane was maintenance ferried to a maintenance facility where it was found the hydraulic pressure lines were reversed at brakes #2 and #6.

Original NASA ASRS Text

Title: AN AIRBUS 300 ON LNDG ROLL BRAKES #2 AND #6 LOCKED UP CAUSING ACFT YAWING AND JOLTING CHRONIC PROB CAUSED BY BRAKE HYD LINES CROSSED AT BRAKES.

Narrative: UPON LNDG SJU MAIN WHEEL BRAKES #2 AND #6 APPEARED TO LOCK. ACFT JOLTED AND YAWED. MAIN WHEEL BRAKES #2 AND #6 TEMPS READ 400 DEGS C, OTHER BRAKES 55-65 DEGS C. CAPT DID NOT APPLY BRAKES UNTIL ACFT BELOW 60 KTS. ACFT HAS RECENT HISTORY OF BRAKES #2 AND #6 MALFUNCTION. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THIS AIRPLANE HAD A MAINT HISTORY ON THE NORMAL BRAKING SYS. THE RPTR SAID THE AIRPLANE WAS MAINT FERRIED TO A MAINT FACILITY WHERE IT WAS FOUND THE HYD PRESSURE LINES WERE REVERSED AT BRAKES #2 AND #6.

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.