STC ST11125SC

Number ST11125SC

Part 25 of the Federal Aviation Regulations.

Original Product – Type Certificate Number: A16WE

Structural modification necessary for the installation of a Dual Iridium Antenna on a Boeing 737-900ER Series aircraft in accordance with Master Data List DGD-RDUM02-MD-01, Revision IR, dated November 21, 2012 or later, FAA-approved revision. Maintenance procedures to be conducted in accordance with DGD Instructions for Continued Airworthiness (ICA) Document No. DGD-RDUM02-IC-01, Rev IR, dated October 4, 2012 or later, FAA-approved revision (see continuation sheet 3 of 3).

The installer must determine whether this design change is compatible with previously approved modifications. 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 (see continuation sheet 3 of 3).

Date of application: June 28, 2012 Date reissued:

Date of issuance: February 27, 2013 Date amended: February 7, 2014

Signature S. Frances Cox

Manager, Special Certification Office, Title Southwest Region

FAA Form 8110-2 (8/13) Page 1 Delta G Design 716 Lake Air Drive, Suite G Waco, TX 76710 Make: Boeing Model: 737-300, -400, -500, -600, -700, -700C, -800, -900, -900ER

SUPPLEMENTAL TYPE CERTIFICATE, FAA FORM 8110-2 (CONTINUED)

To (Name of transferee)

(Address of transferee)

(Number and street)

(City, State, and ZIP Code)

From (Name of grantor)

(Address of grantor)

(Number and street)

(City, State, and ZIP Code)

FAA Form 8110-2 (8/13) Page 2

Number: ST11125SC Date of Issuance: February 27, 2013 Date of Amendment: February 7, 2014

Description of Type Design Change (Continued):

This amended STC covers the s tructural modification necessary for the installation of a Dual Iridium Antenna on additional model series (listed on page 1 of this certificate) of Boeing 737 aircraft and in additional locations on such models in accordance with Master Data List DGD -RDUM02-MD-01, Revision A, dated January 15, 2014 or later, FAA- approved revision. Maintenance procedures to be conducted in accordance with DGD Instructions for Continued Airworthiness (ICA) Document No. DGD-RDUM02-IC-01, Rev B, dated Dec. 13, 2013 or later, FAA-approved revision.

Note: The FAA has reviewed the applicant’s assessment showing that this modification does not impact the existing electrical wiring interconnection system instructions for continued airworthiness (EWIS ICA) and found that no additional EWIS ICA tasks are required.

Certification Basis: The Certification Basis for this installation is per Type Certificate Data Sheet A16WE, Revision 52, plus the following:

Regulations that meet amendment level 25-23:

25.607

Regulations that meet amendment level 25-86:

25.571(a)(b1)-(b5)

Regulation 26.47(c)

-END-

FAA Form 8110-2 (8/13) Page 3