Narrative:

Upon liftoff at anc, stick shaker activated and indicator bar in HUD and ADI was very erratic. Stick shaker continued. First officer was flying and stated, 'aircraft was flying normally.' captain verified first officer's assessment with xchks of other flight parameters. Notified tower that a return for landing was necessary and no further assistance required . Pulled #1 stall system circuit breaker to deactivate stick shaker. Uneventful normal landing and return to gate. Mechanics found left aoa vane damage. Prior to boarding, gate agent and a mechanic conferred about location of jetway to the aircraft and first officer did not notice any damage to aoa vane during his walkaround preflight inspection.

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Original NASA ASRS Text

Title: A COMMERCIAL FIXED WING MLG RETURNED TO THE FIELD IMMEDIATELY AFTER TKOF DUE TO A CONTINUOUS STALL WARNING STICK SHAKER CAUSED BY THE L ANGLE OF ATTACK SENSOR DAMAGED BY JETWAY MOVEMENT.

Narrative: UPON LIFTOFF AT ANC, STICK SHAKER ACTIVATED AND INDICATOR BAR IN HUD AND ADI WAS VERY ERRATIC. STICK SHAKER CONTINUED. FO WAS FLYING AND STATED, 'ACFT WAS FLYING NORMALLY.' CAPT VERIFIED FO'S ASSESSMENT WITH XCHKS OF OTHER FLT PARAMETERS. NOTIFIED TWR THAT A RETURN FOR LNDG WAS NECESSARY AND NO FURTHER ASSISTANCE REQUIRED . PULLED #1 STALL SYS CIRCUIT BREAKER TO DEACTIVATE STICK SHAKER. UNEVENTFUL NORMAL LNDG AND RETURN TO GATE. MECHS FOUND L AOA VANE DAMAGE. PRIOR TO BOARDING, GATE AGENT AND A MECH CONFERRED ABOUT LOCATION OF JETWAY TO THE ACFT AND FO DID NOT NOTICE ANY DAMAGE TO AOA VANE DURING HIS WALKAROUND PREFLT INSPECTION.

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.