Narrative:

Being vectored for the ILS runway 12 approach at iad, I dropped below my assigned altitude of 6000 ft. The captain called it out and I corrected. Lowest altitude was 5700 ft MSL. Nothing was said by approach control.

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Original NASA ASRS Text

Title: ACR FO DSNDED BELOW ASSIGNED CLRNC ALT WHILE ON VECTOR FOR APCH.

Narrative: BEING VECTORED FOR THE ILS RWY 12 APCH AT IAD, I DROPPED BELOW MY ASSIGNED ALT OF 6000 FT. THE CAPT CALLED IT OUT AND I CORRECTED. LOWEST ALT WAS 5700 FT MSL. NOTHING WAS SAID BY APCH CTL.

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.