WHEN AN MDT WAS SUBSTITUTED FOR A SMALLER ACFT; IT BECAME NECESSARY TO HAVE EMER GND EQUIP STANDING BY FOR THEIR ARR. THIS WAS NOT DONE.

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I FLEW A TRIP FROM ANCHORAGE TO HOMER. THE FLT WAS COMPLETELY NORMAL. WHEN I RETURNED TO ANCHORAGE I WAS INFORMED THAT THERE WAS NO CRASH; FIRE; RESCUE UNIT ON DUTY IN HOMER. NORMALLY; THIS IS TAKEN CARE OF BY THE COMPANY FLT OPS; HOWEVER; THEY FAILED TO ENSURE THAT CFR WAS NOTIFIED WHEN HE FLT WAS SWITCHED FROM A SMALL ACFT TO A LARGE ACFT. THE PROBLEM AROSE BECAUSE DISPATCH FAILED TO PROPERLY NOTIFY CFR. A CONTRIBUTORY FACTOR IS THAT I DID NOT CHK TO SEE IF CFR HAD BEEN NOTIFIED. I ROUTINELY FLY INTO THIS ARPT AND CFR HAS ALWAYS BEEN PROPERLY NOTIFIED. WHEN THE COMPANY SWITCHES SCHEDULED FLTS FROM SMALLER ACFT TO LARGER ACFT; THERE SHOULD BE A SYS OF CHKS AND BALANCES TO ENSURE IMPORTANT DETAILS HAVE BEEN TAKEN CARE OF (CFR; FLT PLANS; GND SUPPORT; ETC). AS PIC I WILL NOT MAKE THE ASSUMPTIONS THAT THESE DETAILS HAVE BEEN TAKEN CARE OF; I WILL PERSONALLY LOOK INTO EACH DETAIL. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO. RPTR SAID THAT THEIRS IS THE ONLY CARRIER FLYING ACFT INTO HOMER THAT ARE LARGE ENOUGH TO REQUIRE CRASH/RESCUE EQUIP. THEREFORE; ANY REF TO THIS PROBLEM WOULD IDENT HIS AIRLINE. HE SAYS HE HAS LOOKED INTO IT AND HOMER SEEMS TO BE THE ONLY PLACE WHERE THIS PROBLEM EXISTS AND THAT THE INCIDENT CITED IN HIS RPT SEEMS TO HAVE BEEN AN ISOLATED INCIDENT. HE DOESN'T THINK THE PROBLEM HAS TO BE PURSUED ANY FURTHER AND THAT HE FILED HIS RPT AT THE SUGGESTION OF HIS DISPATCHER.