DCL Aviation Group Inc. supplies and services aviation ground support equipment throughout North America. DCL Aviation Group offers a wide variety of refurbished GSE for both purchase and lease. We have over 32 years of experience in the mechanical industry and 22 years of experience in the aviation industry. DCL Aviation Group Inc. supplies and services aviation ground support equipment throughout North America. DCL Aviation Group offers a wide variety of refurbished GSE for both purchase and lease. We have over 32 years of experience in the mechanical industry and 22 years of experience in the aviation industry.