Medium large transport air carrier aircraft's nosewheel extension malfunctioned causing the captain to declare an emergency landing resulting in the aircraft being towed to parking after landing.

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Attributes
ACN	238545
Time
Date	199303
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : msp
State Reference	MN
Altitude	agl bound lower : 0 agl bound upper : 2000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : msp
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	descent : approach 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 : 150 flight time total : 12000 flight time type : 200
ASRS Report	238545
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 : overcame equipment problem
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Gear down and red warning for nose gear. We abandoned approach to work on problem. Gear retracted normally and we got a 'nosewheel steering' status message. Performed all procedures, briefed passenger for rough landing, declared emergency. Landed and shut down on runway. Had to be towed to gate. We had had numerous maintenance problems all day with ship. Part of equipment cooling was inoperative and I suspect possibility of some overheating of components. Maintenance does not agree with my assessment. They say just a coincidence. We had the following messages or problems on only 2 segments: 2 autoplt disconnects, autoplt would not capture localizer, both mcdu locked up on ground in las, nose gear door open with gear down, no nosewheel steering on landing in msp.

Original NASA ASRS Text

Title: MLG ACR ACFT'S NOSEWHEEL EXTENSION MALFUNCTIONED CAUSING THE CAPT TO DECLARE AN EMER LNDG RESULTING IN THE ACFT BEING TOWED TO PARKING AFTER LNDG.

Narrative: GEAR DOWN AND RED WARNING FOR NOSE GEAR. WE ABANDONED APCH TO WORK ON PROB. GEAR RETRACTED NORMALLY AND WE GOT A 'NOSEWHEEL STEERING' STATUS MESSAGE. PERFORMED ALL PROCS, BRIEFED PAX FOR ROUGH LNDG, DECLARED EMER. LANDED AND SHUT DOWN ON RWY. HAD TO BE TOWED TO GATE. WE HAD HAD NUMEROUS MAINT PROBS ALL DAY WITH SHIP. PART OF EQUIP COOLING WAS INOP AND I SUSPECT POSSIBILITY OF SOME OVERHEATING OF COMPONENTS. MAINT DOES NOT AGREE WITH MY ASSESSMENT. THEY SAY JUST A COINCIDENCE. WE HAD THE FOLLOWING MESSAGES OR PROBS ON ONLY 2 SEGMENTS: 2 AUTOPLT DISCONNECTS, AUTOPLT WOULD NOT CAPTURE LOC, BOTH MCDU LOCKED UP ON GND IN LAS, NOSE GEAR DOOR OPEN WITH GEAR DOWN, NO NOSEWHEEL STEERING ON LNDG IN MSP.

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.