Aircraft equipment problem. A-sys hydraulic failure.

Attributes
ACN	311800
Time
Date	199507
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ewr
State Reference	NJ
Altitude	agl bound lower : 1500 agl bound upper : 1500
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : ewr
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	climbout : initial climbout : intermediate altitude 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 : 50 flight time total : 8000 flight time type : 1500
ASRS Report	311800
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
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 flight crew : overcame equipment problem other other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

After gear retraction and just at completion of flap retraction, the a-sys hydraulics failed completely. CRM played a large part in the successful conclusion of the emergency. First officer flew and talked with approach as so and I ran checklist and coordinated with company. Aircraft safely returned to ewr with, as well as I can determine, adherence to all prescribed procedures. Possible problem with my failure to enter in the logbook that the flap inhibit switch (part of the GPWS) was used as per procedure. I did call in this write-up to our maintenance personnel on jul/thu/95. Actually, I am not certain it needed to be in the logbook since the operations manual addresses inhibiting the GPWS but does not specify the flap inhibit portion of the GPWS.

Original NASA ASRS Text

Title: ACFT EQUIP PROB. A-SYS HYD FAILURE.

Narrative: AFTER GEAR RETRACTION AND JUST AT COMPLETION OF FLAP RETRACTION, THE A-SYS HYDS FAILED COMPLETELY. CRM PLAYED A LARGE PART IN THE SUCCESSFUL CONCLUSION OF THE EMER. FO FLEW AND TALKED WITH APCH AS SO AND I RAN CHKLIST AND COORDINATED WITH COMPANY. ACFT SAFELY RETURNED TO EWR WITH, AS WELL AS I CAN DETERMINE, ADHERENCE TO ALL PRESCRIBED PROCS. POSSIBLE PROB WITH MY FAILURE TO ENTER IN THE LOGBOOK THAT THE FLAP INHIBIT SWITCH (PART OF THE GPWS) WAS USED AS PER PROC. I DID CALL IN THIS WRITE-UP TO OUR MAINT PERSONNEL ON JUL/THU/95. ACTUALLY, I AM NOT CERTAIN IT NEEDED TO BE IN THE LOGBOOK SINCE THE OPS MANUAL ADDRESSES INHIBITING THE GPWS BUT DOES NOT SPECIFY THE FLAP INHIBIT PORTION OF THE GPWS.

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.