12:03 EDT Thursday, September 18, 2008

AeroMechanical Services Ltd.                 
TSX-V Trading Symbol "AMA"      
A Tier 2 Industrial Issuer   

CALGARY , Sept. 18 /CNW/ - AeroMechanical Services Ltd. ("AMA"), a leading service provider of aircraft health performance monitoring systems, announced today that the U.S. Patent Office has again confirmed the validity of AMA's U.S. Patent No. 7,203,630, abruptly ending a reexamination proceeding initiated by Star Navigation Systems Group, Ltd. (Star).

Last year, as announced in AMA's September 26, 2007 press release, Star requested the Patent Office to declare AMA's patent invalid in view of Star's U.S. Patent No. 7,113,852. After a review, the Patent Office disagreed with Star and summarily rejected Star's attack on AMA's patent, finding that AMA's '630 Patent was valid as-issued.

The Patent Office's ruling has dealt a significant blow to Star, because it demonstrates not only the validity of AMA's patent but also the substantial differences between AMA's products and Star's '852 Patent.

The ruling completely undermines Star's ongoing patent infringement case in the Northern District of California, where Star is alleging that AMA is infringing Star's '852 patent. On September 3, 2008 , Star re-filed for the third time the infringement case in California. AMA filed a motion to dismiss on September 17, 2008 . The Patent Office's ruling further evidences that the California lawsuit is without basis and that there is no merit to the infringement allegations. AMA will continue to defend itself against the baseless allegations made by Star.

AMA is the technology leader in aircraft health performance monitoring systems, and holds patents recognizing its innovation in this industry. AMA takes intellectual property matters very seriously.