STC SA02034CH

Number SA02034CH This certificate issued to Joseph M. Quint dba Blackhawk Aircraft Maintenance Inc.

PO Box 3157 Janesville, WI 53547-3157

Part 3 of the Civil Air Regulations. (See Type Certificate Data Sheet No. 3A23 for complete certification basis)

Original Product--Type Certificate Number : 3A23 Make : Maule Aerospace Technology Inc Bee Dee M-4, M-4, M-4C, M-4S, M-4T, M-4-180C, M-4-180S, M-4-180T, M-4-210, M-4-210C, M-4-210S, M-4-210T, M-4-220, M-4- 220C, M-4-220S, M-4-220T, M-5-180C, M-5-200, M-5-210C, M-5- 210TC, M-5-220C, M-5-235C, M-6-180, M-6-235, M-7-235, M-7- 235A, M-7-235B, M-7-235C, M-7-260, M-7-260C, M-7-420A, M-7- 420AC, M-8-235 Model :

Modify cabin doors in accordance with the Blackhawk Aircraft Maintenance Maule Extended Cabin Door Opening Modification Manual, dated May 1, 2004, or later FAA approved revisions.

1. Compatibility of this design change with previously approved modifications must be determined by the installer. 2. The Cabin Door Modification is to be inspected and maintained in accordance with Blackhawk Aircraft Maintenance Maule Extended Cabin Door Opening Modification Manual, dated May 1, 2004, or later FAA approved revisions. 3. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

Date of application : May 24, 2004

Date of issuance : September 09, 2004 Date reissued :

( Signature) Gregory J. Michalik, Senior Aerospace Engineer Airframe & Administrative Branch Chicago Aircraft Certification Office

(Title) Original signed by:

Gregory J. Michalik