September 27, 2010 

 Exemption No. 10079A 

 Regulatory Docket No. FAA-2009-0772 

Mr. Dana Lakeman 

Regulatory Compliance Leader 

GE Aviation 

General Electric Company 

One Neumann Way, MD N-149 

Cincinnati, Ohio 45215 

Dear Mr. Lakeman: 

This letter is to inform you that we have amended Exemption No. 10079. It explains the basis 

for our decision and describes its effect. 

The Basis for Our Decision 

The Federal Aviation Administration (FAA) is amending Exemption No. 10079, for General 

Electric Company (GE). That exemption from §§ 21.151 and 21.153 of Title 14, Code of 

Federal Regulations (CFR) allows amendments to GE’s production limitation record (PLR) to 

permit the manufacture and installation of certain parts which are not part of the typecertificated products listed on GE’s PLR. 

The FAA has reconsidered the conditions and limitations of Exemption No. 10079 and has 

made the following revisions. 

We have determined a need to add four new conditions. Condition 11 adds new requirements 

for certain information to be included in block 13 of FAA Form 8130-3, Authorized Release 

Certificate. Condition 12 extends the relief provided by this exemption to Engine Alliance 

engines, when they are manufactured under GE's quality system and completed under GE's 

production certificate. Condition 13 adds a requirement to update procedures for 

dispositioning discrepancies with interface components (IC) through the Materials Review 

Board (MRB) process, and Condition 14 requires updates to certain GE manuals in 

accordance with the relief provided by this exemption. 
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These new conditions were added to enhance the ability of an operator to determine whether 

the IC was installed during or after engine manufacture. They also clarify that the provisions 

of this exemption only apply to engines manufactured under GE’s production certificate. 

Additionally, the new conditions provide a means to ensure that discrepancies with IC are 

properly dispositioned. The new conditions also ensure that GE’s manuals are adequately 

revised to reflect the relief provided by the exemption. 

Additionally, Condition 9 has been changed to require a determination that the installation of 

any IC during engine manufacture under the provisions of this exemption must provide a level 

of safety that is equivalent to that achieved by installation of the IC after engine manufacture. 

Previously, the condition required a determination that the level of safety be greater than that 

achieved by installation of the IC after engine manufacture. 

Our Decision 

The FAA has determined the justification for the issuance of Exemption No. 10079, as 

amended, remains valid and is in the public interest. Therefore, under the authority provided 

by 49 U.S.C. §§ 40113 and 44701, which the FAA Administrator has delegated to me, I have 

amended Exemption No. 10079. 

The Effect of Our Decision 

The termination date of Exemption No. 10079, as amended, is extended to September 30, 

2012, unless sooner superseded or rescinded. All conditions and limitations of Exemption 

10079, as amended, are stated below. 

Conditions and Limitations 

1. GE may manufacture interface components (IC, which includes single articles or kits) 

that are part of a product type certificated under Parts 23, 25, 27 and 29, and install 

those components during production on GE engines under GE’s production certificate 

PC108. The design data for the IC must be licensed to GE and the IC to be installed 

must be identified on the GE PLR. 

2. IC added to the GE PLR is limited to airframe components specified in condition 

No. 1. The relief provided by this exemption is limited to the manufacture of IC that 

is to be installed on GE engines during engine production. IC manufactured and 

installed under the provisions of this exemption may only leave the GE quality system 

assembled to the engine. IC manufactured by GE under the relief granted in this 

exemption may not be shipped as spare parts or in any other format. 

3. To exercise the privileges of this exemption, GE must apply to the manager of its FAA 

managing office using FAA Form 8110-12, Application for Type Certificate, 

Production Certificate, or Supplemental Type Certificate, requesting amendment of 
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GE’s PLR for the manufacture and installation of IC. The data licensed to GE must be 

a complete data package and include design and installation drawings. That data must 

be made available to GE and the FAA upon request. 

4. IC listed on GE’s PLR is limited to IC manufactured by GE for installation on an 

engine being manufactured under GE’s production certificate. The design data must 

be licensed from the holder of a U.S. type certificate (including an FAA-validated type 

certificate) for the aircraft on which the GE engine is to be installed. 

5. The application by GE to its FAA managing office to amend its PLR must contain the 

following information: 

a. A comprehensive description of the scope of the proposed manufacturing and 

installation activity for the IC on each affected engine model under the 

provisions of this exemption. 

b. A specific description of the IC to be installed on each affected GE engine 

model, including the part number. Kits combining IC should define the 

individual IC included in the kit. 

c. The licensing agreement between GE and the holder of the type certificate that 

specifically identifies the IC to be installed. 

d. A description of the documentation to be maintained by GE identifying the IC 

by its associated type certificate, GE’s supplier of the IC (if applicable), and 

the GE product on which the IC is installed. 

6. The holder of type design data identifying the IC installed on the GE product under 

this exemption retains all the continuing airworthiness responsibilities for the IC. GE 

is responsible for all issues related to quality, manufacturing, and installation of the IC 

by GE. The GE quality manual must include a description of how those 

responsibilities will be separated, identified, and fulfilled by GE and the holder of the 

type certificate identifying the IC. 

7. When exercising the privileges of this exemption, the IC may only be installed under 

the provisions of GE’s production certificate. 

8. GE must have procedures and processes in place to ensure the engine, notwithstanding 

the installed IC, conforms to its approved type design, the IC conforms to its approved 

type design data, and the GE product with the installed IC is in a condition for safe 

operation. 

9. Prior to manufacturing and installing IC on an engine under the provisions of this 

exemption, GE must receive confirmation from its FAA certificate managing office 

that the FAA Transport Airplane Directorate and the FAA Engine and Propeller 

Directorate have determined that any component GE intends to manufacture and 

install under the provisions of this exemption is an IC and that installing the IC during 
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engine manufacture provides a level of safety that is equivalent to that achieved by 

installation of the IC after engine manufacture. 

10. GE must amend its quality manual to indicate that any FAA airworthiness approval 

documentation issued for an engine containing IC manufactured and installed under 

the provisions of this exemption must specify that the IC was installed on the product 

under a licensing agreement. 

11. Prior to the issuance of any FAA Form 8130-3 for a GE engine manufactured under 

the GE quality system and containing IC manufactured and installed under the 

provisions of this exemption, GE must specify in block 13 of the form that: 

a. the IC was installed on the engine during manufacture in accordance with 

Exemption No. 10079, as amended 

b. the IC manufactured and installed under the exemption conforms to its type 

design, and 

c. the engine, excluding the IC installed, conforms to its type design. 

12. The privileges of this exemption are extended to Engine Alliance engines when the 

engines are manufactured under GE's quality system and completed as a product under 

GE's production certificate. This exemption does not apply when GE is 

manufacturing components of an Engine Alliance product and the engine is completed 

under a separate production certificate. 

13. Before exercising the privileges of this exemption, GE must have procedures for 

dispositioning discrepancies with the IC through the MRB process (GE has no 

authority to amend the type design of IC; all changes to the type design must be made 

by the design approval holder, i.e., through MRB action). 

14. GE’s manuals relevant to the exempted activity, such as maintenance/operation 

manuals, and parts catalogs, must be revised to reflect the exempted activity. 

This letter must be attached to, and is a part of, Exemption No. 10079. 

Sincerely, 

/s/ 

K.C. Yanamura 

Acting Director, Aircraft Certification Service