An air carrier medium large transport flight crew has a gear indication problem that is cleared up by recycling the landing gear. However, upon landing the nose gear slowly collapsed and the aircraft came to a stop on the centerline of the runway.

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Attributes
ACN	361596
Time
Date	199702
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ewr
State Reference	NJ
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	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	landing other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : instrument pilot : commercial pilot : atp
Experience	flight time last 90 days : 120 flight time total : 18100 flight time type : 3000
ASRS Report	361596
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : flight engineer pilot : cfi
Experience	flight time last 90 days : 240 flight time total : 14500 flight time type : 1600
ASRS Report	361275
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 none taken : unable
Consequence	other
Supplementary
Primary Problem	Aircraft

Narrative:

On final approach, we selected the gear down at approximately the OM. A red nose gear light came on with 2 green main gear lights. We recycled the landing gear and all 3 landing gear showed green with the nose gear pin in the up position showing nose gear down. After touchdown, and subsequent rollout, I noticed the red nose gear light came back on. At about that time, the aircraft began to settle on the nose section of the airframe. Aircraft skidded approximately 2500 ft down the centerline of runway 4R. General consensus at this time indicates an over-center linkage broke or was broken.

Original NASA ASRS Text

Title: AN ACR MLG FLC HAS A GEAR INDICATION PROB THAT IS CLRED UP BY RECYCLING THE LNDG GEAR. HOWEVER, UPON LNDG THE NOSE GEAR SLOWLY COLLAPSED AND THE ACFT CAME TO A STOP ON THE CTRLINE OF THE RWY.

Narrative: ON FINAL APCH, WE SELECTED THE GEAR DOWN AT APPROX THE OM. A RED NOSE GEAR LIGHT CAME ON WITH 2 GREEN MAIN GEAR LIGHTS. WE RECYCLED THE LNDG GEAR AND ALL 3 LNDG GEAR SHOWED GREEN WITH THE NOSE GEAR PIN IN THE UP POS SHOWING NOSE GEAR DOWN. AFTER TOUCHDOWN, AND SUBSEQUENT ROLLOUT, I NOTICED THE RED NOSE GEAR LIGHT CAME BACK ON. AT ABOUT THAT TIME, THE ACFT BEGAN TO SETTLE ON THE NOSE SECTION OF THE AIRFRAME. ACFT SKIDDED APPROX 2500 FT DOWN THE CTRLINE OF RWY 4R. GENERAL CONSENSUS AT THIS TIME INDICATES AN OVER-CTR LINKAGE BROKE OR WAS BROKEN.

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.