A B737-300 flight crew received a 'too low terrain' GPWS warning while in a VMC flare over Runway 3 at GEG.
Synopsis
A B737-300 flight crew received a 'too low terrain' GPWS warning while in a VMC flare over Runway 3 at GEG.
Narrative
When landing on Runway 3 at GEG; at 20 FT AGL and approximately 300 FT past the threshold; we received a 'too low terrain' GPWS warning. We continued to land since it was VMC and we were over the runway at the time (idle power and in the flare).This event brought up some questions: 1. The landing area on Runway 3 has just opened after being closed for a long time. Is there new data in the database (our database was current)? And; could a lack of the extra concrete being in the database cause the warning? 2. Did the airplane do anything wrong? This is the only warning we received in three legs. 3. Did I do something wrong to cause the warning?Note: It was a normal approach and landing (no approach and no VASIs but the approach was stable all the way down). Another concern for us was that the warning was received so late if we didn't have a runway below us we would probably have contacted the ground before a go-around could be accomplished. I wanted to report this so other crews do not run into the same situation.
NASA callback
The reporter was unaware of any additional examples of the problem. He was uncertain whether the aircraft was equipped with an EGPWS (ENHANCED GPWS) which utilizes a digital database. His belief is the event was an anomaly specific to the airplane. He did not write up the event in the AML; choosing instead to make a safety report.
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Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.