4M SIGMA CORPORATION
1900 W. EMERSON PLACE
SEATTLE, WA 98119
Phone: (206) 285-9181
Fax: (206) 285-3922
contact@4msigma.com
Airframe Primes (1)
Domestic Passenger Airlines (6)
International Brokers (15)
International Passenger Airlines (16)
Cargo Airlines (5)
MRO Bases (18)
Ramp Operators (8)
Teardown Facilities (1)
Storage Facilities (1)
A & P Training Schools (2)
Airframe Licensees (2)
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