Narrative:

On descent into lga altimeter given by approach was 29.84 lga altimeter was 29.43. We leveled at 11000 ft with 29.84 and then corrected altimeter to 29.43 and climbed back up to 11000 ft. ATC did not make any comments about our altitude.

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Original NASA ASRS Text

Title: ALTIMETER SETTING - ACR IS GIVEN THE WRONG ALTIMETER SETTING BY APCH CTL ON DSCNT THEN CORRECTS AFTER LEVEL OFF.

Narrative: ON DSCNT INTO LGA ALTIMETER GIVEN BY APCH WAS 29.84 LGA ALTIMETER WAS 29.43. WE LEVELED AT 11000 FT WITH 29.84 AND THEN CORRECTED ALTIMETER TO 29.43 AND CLBED BACK UP TO 11000 FT. ATC DID NOT MAKE ANY COMMENTS ABOUT OUR ALT.

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.