Narrative:

Intercepted GS F20 gear up for runway 17. Tower started to call out traffic and we started to get a TCAS advisory but never saw traffic. Captain was PF. As we approached 1000RA, I asked him if he wanted gear down. He called for gear down and shortly after F30 this set off confign warning. Gear was locked at about 600 ft RA. Traffic call out from tower and TA from TCAS caused both of us to loose sa on confign on final. A lot of VFR traffic and no tower radar contributed.

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Original NASA ASRS Text

Title: B77 FLC BECAME DISTRACTED AND DELAYED EXTENDING THE GEAR UNTIL HEARING THE LNDG CONFIGN WARNING WHEN 30 DEG FLAP WAS EXTENDED.

Narrative: INTERCEPTED GS F20 GEAR UP FOR RWY 17. TWR STARTED TO CALL OUT TFC AND WE STARTED TO GET A TCAS ADVISORY BUT NEVER SAW TFC. CAPT WAS PF. AS WE APCHED 1000RA, I ASKED HIM IF HE WANTED GEAR DOWN. HE CALLED FOR GEAR DOWN AND SHORTLY AFTER F30 THIS SET OFF CONFIGN WARNING. GEAR WAS LOCKED AT ABOUT 600 FT RA. TFC CALL OUT FROM TWR AND TA FROM TCAS CAUSED BOTH OF US TO LOOSE SA ON CONFIGN ON FINAL. A LOT OF VFR TFC AND NO TWR RADAR CONTRIBUTED.

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.