+428-632-816789 LETECKE ZQUODY UYUOJ

AEROTECH GmbH Mr. Manfred Richter Rothenburg fax 0049 35891 46 6IW719 Germany

DATUM 26.6.2002

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Ref: SAFT Batteries Life Extension

Dear Mr. Richter,

In enclosure we are sending you the official statement of the SAFT battery producer for prolongation af the service life up to 12 years upon meeting the criteria prescribed in the maintenance instructions. New calendar life limit will be incorporated into the L410 Maintenance Schedule at the nearest occasion.

Best regards

Chief Designer

LETECKE ZAVODY, 686 04 Kunovice tel. 0632 81 6700, fax: 0632 11 16709 , email: janulik ,v~astimi~@~et,cz intern&:www.let.cz

,I"',, +420-632-816709 LETECKE ZQUODY UYUOJ - 19 . .'I '1. S H t 1

--.-. A___..L..-.-..". -.-.+_- .. ......--.. ... -. .... ......... .--... .....-A - . .. . . . . .

It any pslQes ware not remwcd (.:d -.:.:: .,. .::;::;lble, please rial us el 34Ojl 43 93 $0 bi ---.- . ,-,.--.. -w.. . ...-...--.-.-..---w" ---.. ...... ......... ................. ,,---.. ........ -.. ....... ..- ... .-,---.- . . . . . . -.

I think the 13500 fh / 5y figure nrny by: ::..... ;.:,:i;.\areced typical life, but we do not consider it a limit for our bartabrim.

Technical Sales Manager SAFT Aviation ~ ~ r i w