Narrative:

On civet arrival into lax, set for VNAV aircraft. Went below 12000 ft prior to bremr intersection due to change to vertical speed without altimeter being reset.

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Original NASA ASRS Text

Title: XING RESTR NOT MET WHEN ALT IS OVERSHOT BELIEVING FMS IS IN VNAV BUT IS ACTUALLY IN VERT SPD.

Narrative: ON CIVET ARR INTO LAX, SET FOR VNAV ACFT. WENT BELOW 12000 FT PRIOR TO BREMR INTXN DUE TO CHANGE TO VERT SPD WITHOUT ALTIMETER BEING RESET.

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.