LGT BEING MARSHALLED INTO PARKING HAS WINGTIP HIT CARGO IGLOO.

Narrative

CREW WAS OPERATING AN LGT FREIGHTER ON SCHEDULED NIGHT EXPRESS PACKAGE FLT. WE WERE TAXIING INTO OUR NORMAL RAMP BUT THE PARKING PLAN HAD BEEN MODIFIED TO ACCOMMODATE ADDITIONAL ACFT DURING PEAK PERIOD. WE WERE MARSHALLED INTO A SPOT THAT WAS 'NOSE OUT' FROM THE BUILDING WHICH REQUIRED MULTIPLE L 90 DEG TURNS. MARSHALLER GAVE LAST 2 90'S IN SMALL INCREMENTS AND LAST SMALL CORRECTION RESULTED IN ACFT BEING TOO CLOSE TO A LINE OF CARGO IGLOOS STORED ON A ROLLER DECK ON THE EDGE OF THE RAMP. OUR R WINGTIP MARSHALLER WAS DIRECTLY UNDER THE WING BUT DID NOT SIGNAL A STOP TO MARSHALLER AT NOSE OF ACFT (ONLY 1 CAPT COULD SEE) UNTIL AFTER IMPACT. FO WAS WATCHING OUT R WINDOW BUT CANNOT SEE WINGTIP ON LGT. HE STARTED APPLYING BRAKES WHEN HE SAW GREEN GLOW OF R NAV LIGHT ON FIBERGLASS IGLOOS. WHEN I FELT BRAKES BEING APPLIED I IMMEDIATELY STOPPED ACFT AT WHICH POINT NOSE MARSHALLER FINALLY SIGNALED A STOP. GND HANDLING SUPVR AND RAMP MGR BOTH ACCEPTED FULL RESPONSIBILITY FOR INCIDENT STATING IT WAS NOT CREW'S FAULT AND THAT CREW HAD BEEN IMPROPERLY MARSHALLED INTO SIT THEY (CREW) COULD NOT OBSERVE FROM COCKPIT. PROB WAS CAUSED BY: TEMPORARY PARKING PLAN ON CONGESTED RAMP WITH NO TAXI OR TURN GUIDELINES PAINTED; CARGO IGLOOS STORED ON EDGE OF ACTIVE PARKING RAMP; INATTENTIVE/INEXPERIENCED MARSHALLING PERSONNEL; AND INABILITY OF AIR CREW TO OBSERVE WINGTIPS OF LGT WHEN TAXIING. DAMAGE TO LGT WAS LIMITED TO SMALL DEFORMATION OF R WINGTIP FAIRING (1/8 - 1/4 INCH DEEP X 6-8 INCHES LNDG) PLUS PAINT SCRAPE FOR ANOTHER 4-5 INCHES (NO CRACKS AND PART DID NOT REQUIRE REPLACEMENT). CARGO IGLOO HAD 3-4 INCH SCRAPE OF NO CONSEQUENCE ON 1 SIDE.