Air carrier flight crew reported a terrain warning on approach to hts airport for an unknown reason.

Attributes
ACN	1619351
Time
Date	201902
Local Time Of Day	1801-2400
Place
Locale Reference	HTS.Airport
State Reference	WV
Aircraft 1
Make Model Name	Medium Transport
Operating Under FAR Part	Part 121
Flight Phase	Initial Approach
Flight Plan	IFR
Component
Aircraft Component	GPWS
Person 1
Function	Pilot Not Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine
Person 2
Function	First Officer Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine
Events
Anomaly	Deviation - Procedural Published Material / Policy Inflight Event / Encounter CFTT / CFIT

Narrative:

On the approach localizer 30. Established on the approach leveling at 2;100 feet 1.2 miles from FAF we got a GPWS warning. We did everything to procedures. No cause. Ca (captain) was PF (pilot flying.) we did a go around and circled back to do the same approach without any problem. Tower gave us a number to follow up. The ca called them. Tower said that's the 2nd time the GPWS warnings has been a problem on that approach. Then the ca went on to explain what GPWS is to the tower controllers.

Original NASA ASRS Text

Title: Air carrier flight crew reported a terrain warning on approach to HTS airport for an unknown reason.

Narrative: On the approach LOC 30. Established on the approach leveling at 2;100 feet 1.2 miles from FAF we got a GPWS warning. We did everything to procedures. No cause. CA (Captain) was PF (Pilot Flying.) We did a go around and circled back to do the same approach without any problem. Tower gave us a number to follow up. The CA called them. Tower said that's the 2nd time the GPWS warnings has been a problem on that approach. Then the CA went on to explain what GPWS is to the tower controllers.

Data retrieved from NASA's ASRS site 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.