Narrative:

Nose gear alert after gear retraction following takeoff. The gear handle was recycled, obtaining the normal 'down, 3 green' indication when the handle was down, but in the up position the nose gear alert reappeared. The gear handle in- transit light also remained illuminated and vibration was felt and heard to emanate from the nose gear area. Discussion with maintenance and dispatcher led to returning to field. An emergency was declared so as to have crash fire rescue equipment standing by. Normal landing was followed by normal rollout and turnoff. Crash fire rescue equipment was secured and taxi-in to gate was completed.

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Original NASA ASRS Text

Title: F100 ACFT JUST AFTER TKOF WHEN LNDG GEAR RAISED, NOSE GEAR INDICATED UNSAFE, BUT WHEN GEAR HANDLE DOWN ALL INDICATED NORMAL. FLC COORDINATED WITH THEIR COMPANY, DECLARED AN EMER AND RETURNED WITH NO FURTHER PROBS.

Narrative: NOSE GEAR ALERT AFTER GEAR RETRACTION FOLLOWING TKOF. THE GEAR HANDLE WAS RECYCLED, OBTAINING THE NORMAL 'DOWN, 3 GREEN' INDICATION WHEN THE HANDLE WAS DOWN, BUT IN THE UP POS THE NOSE GEAR ALERT REAPPEARED. THE GEAR HANDLE IN- TRANSIT LIGHT ALSO REMAINED ILLUMINATED AND VIBRATION WAS FELT AND HEARD TO EMANATE FROM THE NOSE GEAR AREA. DISCUSSION WITH MAINT AND DISPATCHER LED TO RETURNING TO FIELD. AN EMER WAS DECLARED SO AS TO HAVE CFR STANDING BY. NORMAL LNDG WAS FOLLOWED BY NORMAL ROLLOUT AND TURNOFF. CFR WAS SECURED AND TAXI-IN TO GATE WAS COMPLETED.

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.