Narrative:

Descending on the localizer for the ILS 27 circle runway 9 we were encountering moderate turbulence. Upon descending through approximately 2000 MSL we hit severe turbulence. Unable to maintain adequate control, I initiated a missed approach. In my haste I climbed through missed approach altitude of 2500 ft. I caught it at approximately 3500 ft and immediately descended back to 2500 ft. The missed approach procedure led us away from the severe turbulence which was mainly due to mountainous terrain and excessive winds. I believe a combination of flying with a new first officer (2ND day on line) and working 18 days without day off were both factors in this incident. As of this writing I'm on my 25TH day straight. This is not unusual. Scheduled passenger carrier operations which operate (solely within the state of ak) has the option of operating under far 135.267, rather than 135.265 which applies to all carriers elsewhere in the united states of america. I believe this is one far which needs to be looked into.

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Original NASA ASRS Text

Title: ACR LTT ALTDEV OVERSHOT DURING GAR.

Narrative: DSNDING ON THE LOC FOR THE ILS 27 CIRCLE RWY 9 WE WERE ENCOUNTERING MODERATE TURB. UPON DSNDING THROUGH APPROX 2000 MSL WE HIT SEVERE TURB. UNABLE TO MAINTAIN ADEQUATE CTL, I INITIATED A MISSED APCH. IN MY HASTE I CLBED THROUGH MISSED APCH ALT OF 2500 FT. I CAUGHT IT AT APPROX 3500 FT AND IMMEDIATELY DSNDED BACK TO 2500 FT. THE MISSED APCH PROC LED US AWAY FROM THE SEVERE TURB WHICH WAS MAINLY DUE TO MOUNTAINOUS TERRAIN AND EXCESSIVE WINDS. I BELIEVE A COMBINATION OF FLYING WITH A NEW FO (2ND DAY ON LINE) AND WORKING 18 DAYS WITHOUT DAY OFF WERE BOTH FACTORS IN THIS INCIDENT. AS OF THIS WRITING I'M ON MY 25TH DAY STRAIGHT. THIS IS NOT UNUSUAL. SCHEDULED PAX CARRIER OPS WHICH OPERATE (SOLELY WITHIN THE STATE OF AK) HAS THE OPTION OF OPERATING UNDER FAR 135.267, RATHER THAN 135.265 WHICH APPLIES TO ALL CARRIERS ELSEWHERE IN THE UNITED STATES OF AMERICA. I BELIEVE THIS IS ONE FAR WHICH NEEDS TO BE LOOKED INTO.

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.