Narrative:

Aircraft pushed back from the gate. Encountered difficulty starting #2 engine. Had aircraft towed back to the gate. Called mechanic. It was determined that we would start the aircraft using external aircraft. Started engine. Advised tug driver via interphone; 'cleared to disconnect external air; advise ready for pushback.' a few seconds later; he advised he was ready for pushback. I said; 'parking brake released; cleared for pushback.' just as the aircraft started to move; first officer noticed the jetway was still against the aircraft. I told tug driver to stop the pushback. Agent was summoned and jetway moved. Pushed back; took off. As soon as we became airborne; the stall warning system activated. It remained on continually; aircraft was not in a stall condition. Returned to field for a normal landing. Upon return to the gate; we found that the angle of attack vane on l-hand side was damaged.

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Original NASA ASRS Text

Title: A B737 STALL WARNING VANE WAS DAMAGED WHEN THE ACFT WAS PUSHED BACK WITH THE JETWAY AGAINST THE FUSELAGE.

Narrative: ACFT PUSHED BACK FROM THE GATE. ENCOUNTERED DIFFICULTY STARTING #2 ENG. HAD ACFT TOWED BACK TO THE GATE. CALLED MECH. IT WAS DETERMINED THAT WE WOULD START THE ACFT USING EXTERNAL ACFT. STARTED ENG. ADVISED TUG DRIVER VIA INTERPHONE; 'CLRED TO DISCONNECT EXTERNAL AIR; ADVISE READY FOR PUSHBACK.' A FEW SECONDS LATER; HE ADVISED HE WAS READY FOR PUSHBACK. I SAID; 'PARKING BRAKE RELEASED; CLRED FOR PUSHBACK.' JUST AS THE ACFT STARTED TO MOVE; FO NOTICED THE JETWAY WAS STILL AGAINST THE ACFT. I TOLD TUG DRIVER TO STOP THE PUSHBACK. AGENT WAS SUMMONED AND JETWAY MOVED. PUSHED BACK; TOOK OFF. AS SOON AS WE BECAME AIRBORNE; THE STALL WARNING SYS ACTIVATED. IT REMAINED ON CONTINUALLY; ACFT WAS NOT IN A STALL CONDITION. RETURNED TO FIELD FOR A NORMAL LNDG. UPON RETURN TO THE GATE; WE FOUND THAT THE ANGLE OF ATTACK VANE ON L-HAND SIDE WAS DAMAGED.

Data retrieved from NASA's ASRS site as of January 2009 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.