Light transport commuter hydraulic system failure as landing gear was lowered. Flight crew used alternate gear procedure, made normal landing, and requested tow to gate due no brake pressure.

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Attributes
ACN	97646
Time
Date	198811
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ags
State Reference	GA
Altitude	agl bound lower : 0 agl bound upper : 2000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : ags artcc : zob
Operator	common carrier : air carrier
Make Model Name	Light Transport, Low Wing, 2 Turboprop Eng
Flight Phase	descent : approach landing other other
Route In Use	approach : visual
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 250 flight time total : 4900 flight time type : 2000
ASRS Report	97646
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	none taken : unable none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Hydraulic pressure failure of normal hydraulic system. Both pump pressures indicate 0. Abandoned approach and requested area to troubleshoot/solve problem, ie lower landing gear. Successful lowering of gear using abnormal/manual procedure. Conducted flyby tower for visual inspection. Landed with gear down, flaps 10 degrees. Due to low brake accumulator pressure, had aircraft towed to gate and passengers transported by FBO van.

Original NASA ASRS Text

Title: LTT COMMUTER HYDRAULIC SYSTEM FAILURE AS LNDG GEAR WAS LOWERED. FLT CREW USED ALTERNATE GEAR PROC, MADE NORMAL LNDG, AND REQUESTED TOW TO GATE DUE NO BRAKE PRESSURE.

Narrative: HYD PRESSURE FAILURE OF NORMAL HYD SYS. BOTH PUMP PRESSURES INDICATE 0. ABANDONED APCH AND REQUESTED AREA TO TROUBLESHOOT/SOLVE PROB, IE LOWER LNDG GEAR. SUCCESSFUL LOWERING OF GEAR USING ABNORMAL/MANUAL PROC. CONDUCTED FLYBY TWR FOR VISUAL INSPECTION. LANDED WITH GEAR DOWN, FLAPS 10 DEGS. DUE TO LOW BRAKE ACCUMULATOR PRESSURE, HAD ACFT TOWED TO GATE AND PAXS TRANSPORTED BY FBO VAN.

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.