Flight crew of large transport air carrier aircraft experienced main system hydraulic failure during...

Attributes
ACN	251266
Time
Date	199309
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : mci
State Reference	MO
Altitude	msl bound lower : 12000 msl bound upper : 29000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zkc
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	climbout : intermediate altitude cruise other other
Route In Use	enroute airway : zkc
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 240 flight time total : 15000 flight time type : 7000
ASRS Report	251266
Person 2
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 150 flight time total : 3900 flight time type : 700
ASRS Report	250896
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : declared emergency other other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

After takeoff from mci and climbing through about 12000 ft in clean confign, noticed #1 engine hydraulic low pressure light and then system 'a' quantity at '0'. #2 light then came on. We had lost all system 'a' hydraulic pressure. We ran the checklist and visually inspected the leading edge flaps on left and right side because we also had leading edge flap amber light on forward instrument panel and #2 and #6 kruger flap indicator lights on the flight engineer indicator panel on. We then conferred with maintenance in iah and dispatch for extra fuel burn at FL290 and determined it was safe to continue to ewr. Declared an emergency with ZNY and accomplished all appropriate checklists. We also discussed a go around for this situation and asked for emergency trucks and ground handling. We landed without further incident and were towed into gate at ewr. The 3-MAN crew coordination worked very well. It was the first officer who brought up a possible go around which was an excellent idea. One never knows. The only other unusual aspect of this incident was a thumping noise for the first maybe 10-15 mins back at mid-cabin. Possibly the #1 hydraulic drive motor (it was the cause of the problem) cavitating. This went away. Supplemental information from acn 250896: problem: mechanical failure of pump.

Original NASA ASRS Text

Title: FLC OF LGT ACR ACFT EXPERIENCED MAIN SYS HYD FAILURE DURING CLBOUT AND CONTINUED ON TO DEST WHERE AN EMER WAS DECLARED FOR ATC HANDLING AND FIRE RESCUE EQUIP STANDBY.

Narrative: AFTER TKOF FROM MCI AND CLBING THROUGH ABOUT 12000 FT IN CLEAN CONFIGN, NOTICED #1 ENG HYD LOW PRESSURE LIGHT AND THEN SYS 'A' QUANTITY AT '0'. #2 LIGHT THEN CAME ON. WE HAD LOST ALL SYS 'A' HYD PRESSURE. WE RAN THE CHKLIST AND VISUALLY INSPECTED THE LEADING EDGE FLAPS ON L AND R SIDE BECAUSE WE ALSO HAD LEADING EDGE FLAP AMBER LIGHT ON FORWARD INST PANEL AND #2 AND #6 KRUGER FLAP INDICATOR LIGHTS ON THE FE INDICATOR PANEL ON. WE THEN CONFERRED WITH MAINT IN IAH AND DISPATCH FOR EXTRA FUEL BURN AT FL290 AND DETERMINED IT WAS SAFE TO CONTINUE TO EWR. DECLARED AN EMER WITH ZNY AND ACCOMPLISHED ALL APPROPRIATE CHKLISTS. WE ALSO DISCUSSED A GAR FOR THIS SIT AND ASKED FOR EMER TRUCKS AND GND HANDLING. WE LANDED WITHOUT FURTHER INCIDENT AND WERE TOWED INTO GATE AT EWR. THE 3-MAN CREW COORD WORKED VERY WELL. IT WAS THE FO WHO BROUGHT UP A POSSIBLE GAR WHICH WAS AN EXCELLENT IDEA. ONE NEVER KNOWS. THE ONLY OTHER UNUSUAL ASPECT OF THIS INCIDENT WAS A THUMPING NOISE FOR THE FIRST MAYBE 10-15 MINS BACK AT MID-CABIN. POSSIBLY THE #1 HYD DRIVE MOTOR (IT WAS THE CAUSE OF THE PROB) CAVITATING. THIS WENT AWAY. SUPPLEMENTAL INFO FROM ACN 250896: PROB: MECHANICAL FAILURE OF PUMP.

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 crew of large transport air carrier aircraft experienced main system hydraulic failure during climb out and continued on to destination where an emergency was declared for ATC handling and fire rescue equipment standby.