A300 experiences complete main hydraulic system failure in ZAU airspace.

Attributes
ACN	423975
Time
Date	199812
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : ord
State Reference	IL
Altitude	msl bound lower : 31000 msl bound upper : 31000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	tower : mci
Operator	common carrier : air carrier
Make Model Name	A300
Navigation In Use	Other
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
ASRS Report	423975
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : declared emergency flight crew : overcame equipment problem
Consequence	Other

Narrative:

Lost total hydraulic quantity in green hydraulic system in cruise at FL310. Ran ECAM procedure, consulted manual, and discussed our options. Declared an emergency, requested runway 32L at ord, and had equipment standing by. Gravity extended gear, landed uneventfully and stopped on runway. We were towed to gate after gear pins were installed.

Original NASA ASRS Text

Title: A300 EXPERIENCES COMPLETE MAIN HYD SYS FAILURE IN ZAU AIRSPACE.

Narrative: LOST TOTAL HYD QUANTITY IN GREEN HYD SYS IN CRUISE AT FL310. RAN ECAM PROC, CONSULTED MANUAL, AND DISCUSSED OUR OPTIONS. DECLARED AN EMER, REQUESTED RWY 32L AT ORD, AND HAD EQUIP STANDING BY. GRAVITY EXTENDED GEAR, LANDED UNEVENTFULLY AND STOPPED ON RWY. WE WERE TOWED TO GATE AFTER GEAR PINS WERE INSTALLED.

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.