Lost partial hydraulics.

Attributes
ACN	95142
Time
Date	198809
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : atl
State Reference	GA
Altitude	msl bound lower : 5000 msl bound upper : 5000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : atl
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	climbout : intermediate altitude cruise other landing other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 180 flight time total : 16500 flight time type : 2000
ASRS Report	95142
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa
Resolutory Action	flight crew : declared emergency other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

Lost system 'B' hydraulic pressure, quantity to zero. Received vector to dump fuel, accomplished system 'B' hydraulic failure abnormal procedure and returned for landing at atl. Lost brakes after clearing runway. Brought aircraft to a stop using pneumatic brakes. Airport emergency equipment standing by. Callback conversation with reporter revealed following information. No damage to aircraft. Passengers deplaned normally after aircraft towed to gate. Changed to another aircraft and started trip again. Reporter doesn't know anyone who has had to use pneumatic system outside of the simulator. Nice to know it works.

Original NASA ASRS Text

Title: LOST PARTIAL HYDRAULICS.

Narrative: LOST SYSTEM 'B' HYD PRESSURE, QUANTITY TO ZERO. RECEIVED VECTOR TO DUMP FUEL, ACCOMPLISHED SYSTEM 'B' HYD FAILURE ABNORMAL PROC AND RETURNED FOR LNDG AT ATL. LOST BRAKES AFTER CLRING RWY. BROUGHT ACFT TO A STOP USING PNEUMATIC BRAKES. ARPT EMER EQUIPMENT STANDING BY. CALLBACK CONVERSATION WITH RPTR REVEALED FOLLOWING INFO. NO DAMAGE TO ACFT. PAXS DEPLANED NORMALLY AFTER ACFT TOWED TO GATE. CHANGED TO ANOTHER ACFT AND STARTED TRIP AGAIN. REPORTER DOESN'T KNOW ANYONE WHO HAS HAD TO USE PNEUMATIC SYS OUTSIDE OF THE SIMULATOR. NICE TO KNOW IT WORKS.

Data retrieved from NASA's ASRS site as of August 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.