Narrative:

After departing toronto city centre airport, the cargo door annunciator light illuminated at approximately 1200 ft MSL. Departure was notified and we requested a return to field. Tower asked us if we needed any assistance and we declined. Following a normal landing, we taxied into the gate. Having experienced a cargo door light annunciation not extinguishing after ramp personnel initially closed the door properly, I shut down the left engine and had my first officer check the door. He found the door not properly closed and re- closed the door and the cargo door annunciator extinguished. I meanwhile called our operations personnel to notify our dispatch and maintenance of our situation. Toronto operation relayed a re-release from our dispatch. The flight departed and flew to its destination uneventfully. When we got to our destination dispatch informed me they thought we were just a return to gate not return to field. Somehow, there was a breakdown in communication. Company informed me that I should have called them directly and had a local mechanic check the cargo door.

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Original NASA ASRS Text

Title: BE02-1900 RETURNS TO YYZ WITH CARGO DOOR ANNUNCIATOR LIGHT.

Narrative: AFTER DEPARTING TORONTO CITY CENTRE ARPT, THE CARGO DOOR ANNUNCIATOR LIGHT ILLUMINATED AT APPROX 1200 FT MSL. DEP WAS NOTIFIED AND WE REQUESTED A RETURN TO FIELD. TWR ASKED US IF WE NEEDED ANY ASSISTANCE AND WE DECLINED. FOLLOWING A NORMAL LNDG, WE TAXIED INTO THE GATE. HAVING EXPERIENCED A CARGO DOOR LIGHT ANNUNCIATION NOT EXTINGUISHING AFTER RAMP PERSONNEL INITIALLY CLOSED THE DOOR PROPERLY, I SHUT DOWN THE L ENG AND HAD MY FO CHK THE DOOR. HE FOUND THE DOOR NOT PROPERLY CLOSED AND RE- CLOSED THE DOOR AND THE CARGO DOOR ANNUNCIATOR EXTINGUISHED. I MEANWHILE CALLED OUR OPS PERSONNEL TO NOTIFY OUR DISPATCH AND MAINT OF OUR SIT. TORONTO OP RELAYED A RE-RELEASE FROM OUR DISPATCH. THE FLT DEPARTED AND FLEW TO ITS DEST UNEVENTFULLY. WHEN WE GOT TO OUR DEST DISPATCH INFORMED ME THEY THOUGHT WE WERE JUST A RETURN TO GATE NOT RETURN TO FIELD. SOMEHOW, THERE WAS A BREAKDOWN IN COM. COMPANY INFORMED ME THAT I SHOULD HAVE CALLED THEM DIRECTLY AND HAD A LCL MECH CHK THE CARGO DOOR.

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.