Narrative:

While climbing to cruise altitude of FL210 encountered moderate turbulence and rain near level-off. PF was concentrating on maneuvering around cells. PNF was talking to ATC. Both pilots punched out altitude alert lights. Aircraft shot past level-off altitude of FL210 to 21400'. Corrected back to FL210. Recommend: do not punch out altitude alert lights. Both pilots were on high minimums. Recommend only 1 pilot be on high minimums.

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Original NASA ASRS Text

Title: ALT DEVIATION ALT OVERSHOT IN CLIMB.

Narrative: WHILE CLBING TO CRUISE ALT OF FL210 ENCOUNTERED MODERATE TURB AND RAIN NEAR LEVEL-OFF. PF WAS CONCENTRATING ON MANEUVERING AROUND CELLS. PNF WAS TALKING TO ATC. BOTH PLTS PUNCHED OUT ALT ALERT LIGHTS. ACFT SHOT PAST LEVEL-OFF ALT OF FL210 TO 21400'. CORRECTED BACK TO FL210. RECOMMEND: DO NOT PUNCH OUT ALT ALERT LIGHTS. BOTH PLTS WERE ON HIGH MINIMUMS. RECOMMEND ONLY 1 PLT BE ON HIGH MINIMUMS.

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.