Flight crew of an air carrier medium large transport declared an emergency and landed not knowing if the nose gear was down and locked since after operating the gear normally and manually, the gear nose gear light would not come on. They also tried changing gear indicator light bulbs to assure that the bulb would light. The gear was pinned after landing prior to taxiing to the gate.

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Attributes
ACN	420502
Time
Date	199811
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : fll airport : fll
State Reference	FL
Altitude	agl bound lower : 0 agl bound upper : 3000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : fll
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 : 200 flight time total : 6500 flight time type : 1600
ASRS Report	420502
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 : declared emergency other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

Having been aloft for slightly less than 3 hours, we arrived into the terminal area with approximately 6000 pounds of fuel. During gear extension, we noticed that we did not get a green light on our nosewheel indication. We went around and I called for the appropriate checklist. The first officer tried to change bulbs, and had to finally extend the gear using the manual gear extension checklist. We still did not get a green light and so declared a precautionary emergency. We were at the time quite certain it was an indicator problem. We landed uneventfully and stopped straight ahead on the runway. Maintenance came to our aircraft and pinned the gear and towed us back to the hangar/gate. After landing and review, I noticed that the flight director had not accomplished some items on the checklist. Make sure who ever you fly with that they tell you 'checklist complete' and even if they tell you it has -- double check.

Original NASA ASRS Text

Title: FLC OF AN ACR MLG DECLARED AN EMER AND LANDED NOT KNOWING IF THE NOSE GEAR WAS DOWN AND LOCKED SINCE AFTER OPERATING THE GEAR NORMALLY AND MANUALLY, THE GEAR NOSE GEAR LIGHT WOULD NOT COME ON. THEY ALSO TRIED CHANGING GEAR INDICATOR LIGHT BULBS TO ASSURE THAT THE BULB WOULD LIGHT. THE GEAR WAS PINNED AFTER LNDG PRIOR TO TAXIING TO THE GATE.

Narrative: HAVING BEEN ALOFT FOR SLIGHTLY LESS THAN 3 HRS, WE ARRIVED INTO THE TERMINAL AREA WITH APPROX 6000 LBS OF FUEL. DURING GEAR EXTENSION, WE NOTICED THAT WE DID NOT GET A GREEN LIGHT ON OUR NOSEWHEEL INDICATION. WE WENT AROUND AND I CALLED FOR THE APPROPRIATE CHKLIST. THE FO TRIED TO CHANGE BULBS, AND HAD TO FINALLY EXTEND THE GEAR USING THE MANUAL GEAR EXTENSION CHKLIST. WE STILL DID NOT GET A GREEN LIGHT AND SO DECLARED A PRECAUTIONARY EMER. WE WERE AT THE TIME QUITE CERTAIN IT WAS AN INDICATOR PROB. WE LANDED UNEVENTFULLY AND STOPPED STRAIGHT AHEAD ON THE RWY. MAINT CAME TO OUR ACFT AND PINNED THE GEAR AND TOWED US BACK TO THE HANGAR/GATE. AFTER LNDG AND REVIEW, I NOTICED THAT THE FLT DIRECTOR HAD NOT ACCOMPLISHED SOME ITEMS ON THE CHKLIST. MAKE SURE WHO EVER YOU FLY WITH THAT THEY TELL YOU 'CHKLIST COMPLETE' AND EVEN IF THEY TELL YOU IT HAS -- DOUBLE CHK.

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.