Narrative:

I; the pilot flying; when cleared for a visual approach looked at the FMS to get the altitude to set in for the final approach. I accidentally looked at the wrong line on the FMS and set in the tdze and descended below the FAF altitude. I noticed the VASI was all red lights and; upon reaching 1;000 ft AGL; stopped the descent and flew level until the glide path.

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Original NASA ASRS Text

Title: A B737 First Officer set the SLC field elevation in the MCP Altitude Window during a night visual approach then descended below the Final Approach Fix crossing altitude and at 1;000 FT realized the aircraft was low because of red VASI lights.

Narrative: I; the pilot flying; when cleared for a visual approach looked at the FMS to get the altitude to set in for the final approach. I accidentally looked at the wrong line on the FMS and set in the TDZE and descended below the FAF altitude. I noticed the VASI was all red lights and; upon reaching 1;000 FT AGL; stopped the descent and flew level until the glide path.

Data retrieved from NASA's ASRS site 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.