Narrative:

Approximately 5 mi prior to lynnx on the lynnx arrival into bur we received vectors toward final approach fix for runway 8 ILS. We were level at 5000 ft when suddenly the 'terrain, terrain' warning sounded from the GPWS. Although the ground was positively idented, company regulations require us at night to perform evasive actions -- advancing power, initiating a climb, which we did, to level off at 6000 ft MSL. We told ATC facility of warning and he was very nonchalant about it -- apologizing even, although he said the MVA for that area is 5000 ft. He said aircraft crossing that area often have terrain warnings. Radio altitude at time of initial warning was 1600 ft AGL. We were lucky no aircraft were in the immediate area. If this is a common occurrence, shouldn't the MVA be changed? I feel this is a hazard if left status quo.

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Original NASA ASRS Text

Title: MLG FLC COMPLAINT OF RECEIVING GPWS AT MVA UNDER RADAR VECTORING IN A NIGHT OP.

Narrative: APPROX 5 MI PRIOR TO LYNNX ON THE LYNNX ARR INTO BUR WE RECEIVED VECTORS TOWARD FINAL APCH FIX FOR RWY 8 ILS. WE WERE LEVEL AT 5000 FT WHEN SUDDENLY THE 'TERRAIN, TERRAIN' WARNING SOUNDED FROM THE GPWS. ALTHOUGH THE GND WAS POSITIVELY IDENTED, COMPANY REGS REQUIRE US AT NIGHT TO PERFORM EVASIVE ACTIONS -- ADVANCING PWR, INITIATING A CLB, WHICH WE DID, TO LEVEL OFF AT 6000 FT MSL. WE TOLD ATC FACILITY OF WARNING AND HE WAS VERY NONCHALANT ABOUT IT -- APOLOGIZING EVEN, ALTHOUGH HE SAID THE MVA FOR THAT AREA IS 5000 FT. HE SAID ACFT XING THAT AREA OFTEN HAVE TERRAIN WARNINGS. RADIO ALT AT TIME OF INITIAL WARNING WAS 1600 FT AGL. WE WERE LUCKY NO ACFT WERE IN THE IMMEDIATE AREA. IF THIS IS A COMMON OCCURRENCE, SHOULDN'T THE MVA BE CHANGED? I FEEL THIS IS A HAZARD IF LEFT STATUS QUO.

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.