I was a passenger on 27Apr2014 on UAL#4101 KMEM-KIAH. Our pilots executed a go-around at under 100 ft altitude. The FlightAware tracklog is here:
First, thank you FlightAware. What an amazing service I just discovered.
Second, could any FlightAware user help me interpret this track? What likely happened? Was the rapid drop in ground speed at 3:04pm on the first approach from 229 kts to 144 very unusual?
The pilots gave us no information during the go-around. Only after landing did they inform us that a windshear required a mandatory go-around. A fellow passenger and I noticed that there was no sound of the flaps being deployed in the first approach, whereas they were very audibly deployed in the second approach.
Is it possible to hypothesize from this tracklog what might have happened? Is it possible to distinguish a meteorological hazard from pilot error by looking at this or other sources?