Narrative:

We were inbound to denver in the early morning on the first day of daylight savings; still very dark with a low overcast below us obscuring the ground. Initially cleared to chola on the ILS 35L at 9;000 ft. The field was called in sight following the query from TRACON and the flight was cleared direct dymon for the visual. Our position was offset 2-3 miles right of the localizer and roughly 12-14 miles from dymon. The ILS was tuned and a good ident verified. I set 7;000 for dymon and the captain began an easy descent to 7;000.despite a good ident; the glide slope indication was approximately one dot above us and wandering slightly. ATC called stating we were below the MVA and below the class B airspace. 1-2 seconds after the ATC call; the 'too low; terrain' warning went off. The captain added power; initiated a climb and called for 8;000 to be set in the altitude window. Pilot not flying set 8;000 and noted the radio altimeter climbing through 1;600 as we passed roughly 7;400. The captain leveled at 8;000; 4-5 miles from dymon; the glide slope reset to a below glide slope indication and the flight proceeded to land without incident.

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Original NASA ASRS Text

Title: Cleared for a night visual approach to Runway 35L at DEN; the flight crew of an A319 descended prematurely; exiting the Class B; going below the MVA and triggering the EGPWS TERRAIN warning.

Narrative: We were inbound to Denver in the early morning on the first day of daylight savings; still very dark with a low overcast below us obscuring the ground. Initially cleared to CHOLA on the ILS 35L at 9;000 FT. The field was called in sight following the query from TRACON and the flight was cleared direct DYMON for the visual. Our position was offset 2-3 miles right of the LOC and roughly 12-14 miles from DYMON. The ILS was tuned and a good ident verified. I set 7;000 for DYMON and the Captain began an easy descent to 7;000.Despite a good ident; the glide slope indication was approximately one dot above us and wandering slightly. ATC called stating we were below the MVA and below the Class B airspace. 1-2 seconds after the ATC call; the 'TOO LOW; TERRAIN' warning went off. The Captain added power; initiated a climb and called for 8;000 to be set in the ALT window. Pilot not flying set 8;000 and noted the Radio Altimeter climbing through 1;600 as we passed roughly 7;400. The Captain leveled at 8;000; 4-5 miles from DYMON; the glide slope reset to a below glide slope indication and the flight proceeded to land without incident.

Data retrieved from NASA's ASRS site as of April 2012 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.