Narrative:

Received GPWS (mode Z) 'terrain, terrain' warning while descending from 6800 ft MSL to 6000 ft MSL on prescribed approach. Runway was in sight, PAPI approach lights in sight with on GS indications. All approach parameters normal except GPWS warning. Missed approach not executed due to crew's visual contact with runway/approach lights and ground. (Night with approximately 1/2 - 3/4 moon.) normal landing with no further indications/warnings.

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Original NASA ASRS Text

Title: FLC OF LGT HAS GPWS ACTIVATE WHEN ON APCH AND ON GS WITH RWY IN SIGHT.

Narrative: RECEIVED GPWS (MODE Z) 'TERRAIN, TERRAIN' WARNING WHILE DSNDING FROM 6800 FT MSL TO 6000 FT MSL ON PRESCRIBED APCH. RWY WAS IN SIGHT, PAPI APCH LIGHTS IN SIGHT WITH ON GS INDICATIONS. ALL APCH PARAMETERS NORMAL EXCEPT GPWS WARNING. MISSED APCH NOT EXECUTED DUE TO CREW'S VISUAL CONTACT WITH RWY/APCH LIGHTS AND GND. (NIGHT WITH APPROX 1/2 - 3/4 MOON.) NORMAL LNDG WITH NO FURTHER INDICATIONS/WARNINGS.

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.