Flight crewof A320 experienced hydraulic system failure on descent to ord. Declared emergency, lande...

Attributes
ACN	578244
Time
Date	200303
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	intersection : dewit
State Reference	MI
Altitude	msl single value : 35000
Environment
Light	Night
Aircraft 1
Controlling Facilities	artcc : zau.artcc
Operator	common carrier : air carrier
Make Model Name	A320
Operating Under FAR Part	Part 121
Flight Phase	cruise : level descent : approach landing : roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 90 flight time total : 11000 flight time type : 90
ASRS Report	578244
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	aircraft equipment other aircraft equipment : ecam other flight crewa other flight crewb
Resolutory Action	controller : provided flight assist flight crew : landed in emergency condition flight crew : declared emergency other
Consequence	other other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

On initial descent into ord, an ECAM indicating green hydraulic low pressure message appeared. Completed ECAM procedure while referencing the flight manual. In attempting to restore pressure to the green system, the hydraulic quantity further decreased. Complying with ECAM and flight manual procedures, the ptu and green engine hydraulic pump were turned off, and the remainder of the ECAM was completed. Dispatch and maintenance control notified of our intentions to declare an emergency. Requested coordination to insure the emergency equipment would be standing by. Notified dispatch of the need to land on runway 27L for its length and advantageous winds. Advised our intentions to come to a complete stop on the runway and the need for a tow off as the nosewheel steering had been disabled by the irregularity. Declared emergency with ZAU, requested one turn in holding to complete checklists and review ECAM status page. Flight attendants and passenger briefed. A cabin advisory was issued. The subsequent approach and landing were normal and uneventful. Aircraft stopped on runway 27L, and was towed to the gate after engine shutdown.

Original NASA ASRS Text

Title: FLT CREWOF A320 EXPERIENCED HYD SYS FAILURE ON DSCNT TO ORD. DECLARED EMER, LANDED SAFELY AND WAS TOWED TO GATE.

Narrative: ON INITIAL DSCNT INTO ORD, AN ECAM INDICATING GREEN HYD LOW PRESSURE MESSAGE APPEARED. COMPLETED ECAM PROC WHILE REFING THE FLT MANUAL. IN ATTEMPTING TO RESTORE PRESSURE TO THE GREEN SYS, THE HYD QUANTITY FURTHER DECREASED. COMPLYING WITH ECAM AND FLT MANUAL PROCS, THE PTU AND GREEN ENG HYD PUMP WERE TURNED OFF, AND THE REMAINDER OF THE ECAM WAS COMPLETED. DISPATCH AND MAINT CTL NOTIFIED OF OUR INTENTIONS TO DECLARE AN EMER. REQUESTED COORD TO INSURE THE EMER EQUIP WOULD BE STANDING BY. NOTIFIED DISPATCH OF THE NEED TO LAND ON RWY 27L FOR ITS LENGTH AND ADVANTAGEOUS WINDS. ADVISED OUR INTENTIONS TO COME TO A COMPLETE STOP ON THE RWY AND THE NEED FOR A TOW OFF AS THE NOSEWHEEL STEERING HAD BEEN DISABLED BY THE IRREGULARITY. DECLARED EMER WITH ZAU, REQUESTED ONE TURN IN HOLDING TO COMPLETE CHKLISTS AND REVIEW ECAM STATUS PAGE. FLT ATTENDANTS AND PAX BRIEFED. A CABIN ADVISORY WAS ISSUED. THE SUBSEQUENT APCH AND LNDG WERE NORMAL AND UNEVENTFUL. ACFT STOPPED ON RWY 27L, AND WAS TOWED TO THE GATE AFTER ENG SHUTDOWN.

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.

Flight crewof A320 experienced hydraulic system failure on descent to ord. Declared emergency, landed safely and was towed to gate.