AN SMT CREW HIT A TAXIWAY LIGHT WITH A PROP BLADE ON THE EDGE OF A TEMPORARY TAXIWAY.

Narrative

AFTER LNDG ON RWY 24 AT YQB ARPT; WE WERE INSTRUCTED TO EXIT ON RWY 12 (CLOSED FOR CONSTRUCTION). GND CTL THEN TOLD US TO USE 'J' TAXIWAY TO THE GATE AND GIVE WAY TO AN SMT 1 COMING OFF OF OUR GATE. 'JULIET' TAXIWAY IS A NON- STANDARD; TEMPORARY TAXIWAY THAT IS 50 FT WIDE. DUE TO CONSTRUCTION AT YQB ARPT; THERE WAS NO OTHER EXIT TO THE RAMP AREA EXCEPT BACK TAXIING ON THE ACTIVE RWY. COMMERCIAL JETS ARE NOT ALLOWED TO USE 'JULIET' TAXIWAY. AT THE END OF THE TAXIWAY WE HAD TO COME TO A STOP TO WAIT FOR THE SMT 1. THERE ARE 2 YELLOW LINES PAINTED; ONE LEADING R AND THE OTHER TO THE L. AS I COMMENCED TAXIING; I PLANNED TO FOLLOW THE LINE LEADING R. THE ACFT VEERED SLIGHTLY TO THE R AS I ADDED PWR AND I LATER DISCOVERED THAT A DEPRESSION IN THE PAVEMENT PROBABLY CAUSED THAT. I THEN HEARD A NOISE AND ASKED MY COPLT IF I WAS OFF THE SIDE OF THE TAXIWAY. HE SAID NO IT LOOKED FINE. BEFORE SHUTTING THE AIRPLANE DOWN; GND CTL ADVISED ME TO CHK MY R TIRE AS IT APPEARED THAT I CAME CLOSE TO A TAXI LIGHT. UPON INSPECTION. THE TIRES AND STRUT WERE FINE; BUT THERE WAS A SMALL CHIP OUT OF THE TIP OF ONE OF THE PROPS. APPARENTLY THE PROP CAUGHT THE GLASS TOP OF THE TAXI LIGHT. I THINK SEVERAL FACTORS CONTRIBUTED TO THIS INCIDENT. I RECREATED THE SCENE A COUPLE DAYS LATER AND SLOWLY AND CAREFULLY FOLLOWED THE YELLOW LEADING LINE TO THE R AT THE END OF JULIET AND FOUND THAT IT LEADS YOU WITHIN A COUPLE OF FT OF THE SIDE OF THE TAXIWAY CURVE ADJOINING THE RAMP. ALSO THAT PARTICULAR TAXI LIGHT IS NOT OFFSET MORE THAN A FT FROM THE EDGE. THE DEPRESSION/SLANT AT THE R; WHICH I COULD NOT SEE FROM THE L SEAT DID NOT HELP. FINALLY; THE ACFT DESIGN CONTRIBUTED; WITH ONLY 10 INCHES OF CLRNC FROM PROP TIP TO GND.