STC SA3504SW

United 3tatu of ararrica Bcpartmcnt of ICransportarion-federal auiation administration Supplemental 'Cuje Certificate SA330/4SW Project T6929SW-S JLC-191 < Southwest Cooler Service, Inc.

3939 Platinum Nay Dallas, Texas 75237 *n dht /uA<& afAia 75 <af^n* Federal iLifaiatnju Jvocuic/——•-s-ySu''^ei^^fica^e'^/lumoer- A16WE Boeing 737 Series f,/ Reuanufacture of ECU heat exchanger by installing new heat exchanger matrix in accordance with Southwest Cooler Service, Inc. Drawing 50160, Revision A dated 5/15/85, or later FAA approved revision.

Compatibility of this modification with other previously approved modifications must be determined by the installer.

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October 30, 1984 ^L** September 16, 1985 ^^72 (Signature) Manager, Aircraft Certification Division Southwest Region ———————— (Title)

Tkis arttfieatt may tt transftmd in tetorJanee with FAR 21.47.

»AAFo*.«llO-2(10-6«)

INSTRUCTIONS: The transfer endowment below may be used to n<xify .he appropriate FAA Regional Office of i he transfer of thu Supplemenul Type Certificate.

The FAA will reitsue the certificate in the name of the transferee and forward it .o him.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee).

(Address of transferee). (Xumtxr ml On*) from (Name of grantor) (Print or type).

(Address of grantor) (A'umttr tn* lirtttj Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

, ii « r. o n i«n«-««»-'»»o