Air carrier medium large transport makes missed approach after nose gear light fails to reveal extent of aircraft equipment problem malfunction during a night operation.

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Attributes
ACN	232002
Time
Date	199301
Day	Sun
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : lex
State Reference	KY
Altitude	agl bound lower : 1000 agl bound upper : 1450
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tower : lex
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	descent : approach landing : missed approach landing other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : flight engineer pilot : commercial pilot : atp
Experience	flight time last 90 days : 175 flight time total : 7000 flight time type : 2000
ASRS Report	232002
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : overcame equipment problem other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

On final to runway 4 at klex we had a 'blank' nose gear indication (not red or green). We executed and reported missed approach/low approach. We did not declare an emergency because a secondary nose landing gear down and locked indication was available. Procedures were reviewed downwind, and a normal landing followed. Altitude on downwind was plus or minus 250 ft.

Original NASA ASRS Text

Title: ACR MLG MAKES MISSED APCH AFTER NOSE GEAR LIGHT FAILS TO REVEAL EXTENT OF ACFT EQUIP PROB MALFUNCTION DURING A NIGHT OP.

Narrative: ON FINAL TO RWY 4 AT KLEX WE HAD A 'BLANK' NOSE GEAR INDICATION (NOT RED OR GREEN). WE EXECUTED AND RPTED MISSED APCH/LOW APCH. WE DID NOT DECLARE AN EMER BECAUSE A SECONDARY NOSE LNDG GEAR DOWN AND LOCKED INDICATION WAS AVAILABLE. PROCS WERE REVIEWED DOWNWIND, AND A NORMAL LNDG FOLLOWED. ALT ON DOWNWIND WAS PLUS OR MINUS 250 FT.

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.