Narrative:

Altimeter setting anchorage was low 28.95 -- going through 18000 ft altimeter was set at 28.92 instead of 29.92 resulting in 1000 ft error in level off. Contributing factor was crew occupied with testing bleed air system as this was a test flight. ATC questioned altitude and discovery was made.

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Original NASA ASRS Text

Title: FLC SET 28 PT 92 INSTEAD OF 29 PT 92 DURING CLB TO FL330.

Narrative: ALTIMETER SETTING ANCHORAGE WAS LOW 28.95 -- GOING THROUGH 18000 FT ALTIMETER WAS SET AT 28.92 INSTEAD OF 29.92 RESULTING IN 1000 FT ERROR IN LEVEL OFF. CONTRIBUTING FACTOR WAS CREW OCCUPIED WITH TESTING BLEED AIR SYS AS THIS WAS A TEST FLT. ATC QUESTIONED ALT AND DISCOVERY WAS MADE.

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.