A B727 on approach to lga at 3000 ft declared an emergency and diverted to jfk due to a complete loss of 'a' system hydraulics caused by a failed leading edge slat actuator.

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Attributes
ACN	388376
Time
Date	199712
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : lga
State Reference	NY
Altitude	msl bound lower : 3000 msl bound upper : 3000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : n90
Operator	common carrier : air carrier
Make Model Name	B727 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	descent : approach other 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 : 13800 flight time type : 750
ASRS Report	388376
Person 2
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : instrument pilot : commercial pilot : flight engineer
Experience	flight time last 90 days : 140 flight time total : 3800 flight time type : 400
ASRS Report	388747
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa other other : unspecified cockpit
Resolutory Action	flight crew : declared emergency other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

During approach to lga the 'a' hydraulic system failed (B727). This failure results in a faster approach speed and renders the nosewheel steering inoperative. Because of this, the flight was diverted to jfk to take advantage of the clear approach and long runway. All checklists were completed and the landing at jfk was normal. The aircraft was stopped on the runway and secured. No emergency was declared. The system failed because all hydraulic fluid from the 'a' system was pumped overboard through a leak in a slat actuator. Rate of fluid loss was very fast and not noticed by the flight engineer as his attention was directed outside for traffic watch.

Original NASA ASRS Text

Title: A B727 ON APCH TO LGA AT 3000 FT DECLARED AN EMER AND DIVERTED TO JFK DUE TO A COMPLETE LOSS OF 'A' SYS HYDS CAUSED BY A FAILED LEADING EDGE SLAT ACTUATOR.

Narrative: DURING APCH TO LGA THE 'A' HYD SYS FAILED (B727). THIS FAILURE RESULTS IN A FASTER APCH SPD AND RENDERS THE NOSEWHEEL STEERING INOP. BECAUSE OF THIS, THE FLT WAS DIVERTED TO JFK TO TAKE ADVANTAGE OF THE CLR APCH AND LONG RWY. ALL CHKLISTS WERE COMPLETED AND THE LNDG AT JFK WAS NORMAL. THE ACFT WAS STOPPED ON THE RWY AND SECURED. NO EMER WAS DECLARED. THE SYS FAILED BECAUSE ALL HYD FLUID FROM THE 'A' SYS WAS PUMPED OVERBOARD THROUGH A LEAK IN A SLAT ACTUATOR. RATE OF FLUID LOSS WAS VERY FAST AND NOT NOTICED BY THE FE AS HIS ATTN WAS DIRECTED OUTSIDE FOR TFC WATCH.

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.