Flight Crew Last 90 Days 234; Flight Crew Type 6500
Human-Machine Interface; Distraction; Confusion
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Overcame Equipment Problem
Aircraft; Human Factors
I was pilot flying and I had set up a three mile final and a three degree glideslope in the FMC for a visual to Runway XX in VMC. Upon joining final approach I called for gear down and flaps to 15. When the flaps extended we received a brief Gear Warning horn that silenced. I looked as the green gear lights appeared on the console then checked overhead and saw 3 green lights. I continued to configure to flaps 40 and get stabilized. Upon the 500 FT call; we received a GPWS warning of Too Low Gear. It caught my attention and I said that I would go around while beginning to push up the power levers. The Captain pushed in on the gear handle and the warning immediately silenced showing six green lights (three in front and three overhead). He said to continue and land. I saw no indication that the gear was unsafe and continued to a safe landing. We exited the runway and taxied to the gate without further incident.Well; from now on if I determine that a go-around is in order; I will be a little more insistent that we execute the maneuver. The indications in the cockpit in those seconds gave me confidence that the gear was down and locked; so when the Captain said land I followed his instruction. I just felt that my initial decision to commence the go-around would have been more prudent. I also learned to ensure the gear handle is pushed in all the way when selected down.
The First Officer called for landing gear down; flaps 15. I accomplished both then focused outside to confirm our position and landing runway. The warning horn sounded briefly but went out and I responded 'haven't heard that in a -700 before' (that should have been my first clue.) At 500 FT we received a 'too low gear' call. I immediately looked at the gear indicators and handle position. There were three green and three red. I wiggled the handle and the red lights went out. The First Officer and I both looked at the overhead panel to confirm three green indications. On the initial 'too low' the First Officer started to call go-around but the condition was fixed before he finished. I asked if he was OK with our situation and he stated 'yes.' I said continue and we landed with no further issues. I missed the three red lights because I got focused outside on a visual approach to an unfamiliar runway. This is no excuse for missing my cross check; but is simply the reason I was distracted.
When the flight crew of a B737NG received a 'too low gear' EGPWS warning at 500 they pushed in the gear handle and immediately got three (six total) green lights and proceeded with an uneventful landing. Some disagreement surfaced in the reports as to the decision to continue vice go-around.