<< >> NASA ASRS Report 122807, September 1989

Loss of hydraulic pressure in medium large transport on approach to ord. On landing rollout, reversing and maximum braking, aircraft drifted off runway to right.

Attributes
ACN	122807
Time
Date	198909
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ord
State Reference	IL
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	landing 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 : 165 flight time total : 4900 flight time type : 2550
ASRS Report	122807
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 85 flight time total : 3100 flight time type : 370
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

35 NM northeast of ord while in descent for landing, master caution light came on followed by right hydraulic pressure light. QRH procedures initiated. Rudder control manual light came on followed by left hydraulic pressure light. QRH procedure for landing with no hydraulic pressure was initiated. Company maintenance was notified. Slat/flap extension was attempted with no positive indication. Tower was notified and crash fire rescue equipment equipment requested. Accomplished QRH alternate gear extension procedure in conjunction with no flap/no slat landing procedure. F/a's were notified. ILS approach to 9R was flown with touchdown at 1000' at vref +5 KTS. Reverse thrust and maximum braking was initiated. Aircraft drifted right off runway and nose gear collapsed. Emergency evacuate/evacuation was initiated and checklist completed.

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Original NASA ASRS Text

Title: LOSS OF HYDRAULIC PRESSURE IN MLG ON APCH TO ORD. ON LNDG ROLLOUT, REVERSING AND MAX BRAKING, ACFT DRIFTED OFF RWY TO RIGHT.

Narrative: 35 NM NE OF ORD WHILE IN DSCNT FOR LNDG, MASTER CAUTION LIGHT CAME ON FOLLOWED BY RIGHT HYDRAULIC PRESSURE LIGHT. QRH PROCS INITIATED. RUDDER CONTROL MANUAL LIGHT CAME ON FOLLOWED BY LEFT HYDRAULIC PRESSURE LIGHT. QRH PROC FOR LNDG WITH NO HYDRAULIC PRESSURE WAS INITIATED. COMPANY MAINT WAS NOTIFIED. SLAT/FLAP EXTENSION WAS ATTEMPTED WITH NO POSITIVE INDICATION. TWR WAS NOTIFIED AND CFR EQUIPMENT REQUESTED. ACCOMPLISHED QRH ALTERNATE GEAR EXTENSION PROC IN CONJUNCTION WITH NO FLAP/NO SLAT LNDG PROC. F/A'S WERE NOTIFIED. ILS APCH TO 9R WAS FLOWN WITH TOUCHDOWN AT 1000' AT VREF +5 KTS. REVERSE THRUST AND MAX BRAKING WAS INITIATED. ACFT DRIFTED RIGHT OFF RWY AND NOSE GEAR COLLAPSED. EMER EVAC WAS INITIATED AND CHECKLIST COMPLETED.

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.