Narrative:

Cleared to descend to 2800 ft for approach to hsv. Descending through 3500 ft, got GPWS warning 'terrain, terrain, too low, too low.' executed immediate climb to 5000 ft. Approach and tower said they have had several alerts in that area.

Google
 

Original NASA ASRS Text

Title: GPWS SOUNDS AT 3500 FT WHEN ACFT DSNDING TO 2800 FT.

Narrative: CLRED TO DSND TO 2800 FT FOR APCH TO HSV. DSNDING THROUGH 3500 FT, GOT GPWS WARNING 'TERRAIN, TERRAIN, TOO LOW, TOO LOW.' EXECUTED IMMEDIATE CLB TO 5000 FT. APCH AND TWR SAID THEY HAVE HAD SEVERAL ALERTS IN THAT AREA.

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.