Narrative:

During approach to dca, landing gear was extended for landing. Landing gear position lights were inoperative so no positive down and locked indication was observed. A missed approach was made, a manual gear extension and visual confirmation of the gear being down and locked was performed. Flight was diverted to bwi which had better WX and a longer runway. Landing was uneventful.

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Original NASA ASRS Text

Title: FLC OF A B737-300 MADE A MISSED APCH AND DIVERTED TO LAND AFTER THE LNDG GEAR DOWN LIGHTS DID NOT LIGHT WITH THE GEAR DOWN.

Narrative: DURING APCH TO DCA, LNDG GEAR WAS EXTENDED FOR LNDG. LNDG GEAR POS LIGHTS WERE INOP SO NO POSITIVE DOWN AND LOCKED INDICATION WAS OBSERVED. A MISSED APCH WAS MADE, A MANUAL GEAR EXTENSION AND VISUAL CONFIRMATION OF THE GEAR BEING DOWN AND LOCKED WAS PERFORMED. FLT WAS DIVERTED TO BWI WHICH HAD BETTER WX AND A LONGER RWY. LNDG WAS UNEVENTFUL.

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.