# ARMSTR NG AEROSPACE February 20, 2013

Attention: Paul Bernado Acting Manager, Airplane & Flightcrew Interface, ANM-111 Transport Standards Staff Transport Airplane Directorate Aircraft Certification Office
U.S. Department ofTransportation Docket Operations, West Building Ground Floor, Room W12-140 1200 New Jersey Avenue, SE, Washington, DC 20590
Re: Exemption to 14 CFR Part26, Subpart B, 

### § 26.11 (c)
Mr. Bernado,
I received your petition response letter dated February 6, 2013. Thank you for taking the time to respond to the Armstrong Aerospace exemption request in a timely manner. I believe many of your questions were addressed in the initial submission but I have attempted to better organize the exemption request content to better align with the guidance of 14 CFR 11.81(a) through (h).
This exemption application has also been refined to include only 14 CFR Part 26.11 (c). As Armstrong Aerospace is a Supplemental Type Certificate (STC) applicant for these Transmitting Portable Electronic Device (TPED) Compatibility STC projects the FAA is correct in asserting that only 14 CFR Part 26.11(c) is applicable. · Additionally, a request has been made by Armstrong Aerospace to forego the public comment process. Enclosed you will find the updated exemption application (Updated Exemption Application to 14 CFR Part 26, Subpart B, 

### § 26.11(c)). I attempted to update the submitted .exemption application online via comment on public docket number FAA-2013-0103. However, there are technical problems that prevented me from uploading a file. I submitted a technical help request and will follow-up With submittal ofthe file as a new comment as soon as the technical issue is resolved.
Please confirm receipt ofthis updated exemption application at your earliest convenience. I am also available by phone to facilitate a discussion ifneeded.
Enclosed: Original Exemption Application to 14 CFR Part 26, Subpart B, 

### § 26.11 Updated Exemption Application to 14 CFR Part 26, Subpart B, 

### § 26.11 (c) U _S _DOT _FAA_ -_Acknowledgement_letter _Receipt Sincerely,

Anthony Pilcher Director, Technology, Innovation & Compliance Armstrong Aerospace 1437 Harmony Court, Itasca, IL 60143 1437 Harmony Ct. Itasca, IL 60143 www.armstrongaerospace.com (630) 285-0200 Phone (630)**285~0201** FaxAnthony. Pilcher@armstrongaerospace.com (630) 285-0200 ext. 112
Cc: Jamie Lutkus Certification Manager Armstrong Aerospace 1437 Harmony Court, Itasca, IL 60143 Jamie.Lutkus@armstrongaerospace.com (630) 285-0200 ext. 131
Allen Boettcher Senior Program Manager Armstrong Aerospace Inc. 1437 Harmony Court, Itasca, IL 60143 Allen. Boettcher@Armstrongaerospace.com (630) 285-0200 x1 08



### 1437 Harmony Ct. Itasca, IL 

### 60143 www.armstrongaerospace.com 

### (630) 285-0200 Phone 

### (630) 285.0201 Fax

# ARMSTR NG AERO,SPACE January31; 2013 U.S. Department ofTransportation Docket Operations, West Building Ground Floor, Room W12-140 1200 New Jersey Avenue, SE, Washington, DC 20590 Re: Exemption to 14 CFR Part 26, Subpart B, § 26.11 To whom it may concern, Armstrong Aerospace is seeking a complete exemption from he Electrical Wiring l.ntercannection Systems (EWIS) maintenance requirements of 14 CFR Part 6.11 for STC

### application~to certify aircraft compatibility with cellular and wireless data technologies, i.e. tansmitthig Portable Electronic Device (TPED.) Compatibility STC projects. This request is for a com 'lete exemption from 14 

### CFR Part 26.11. These TPED Compatibility STC projects do 

## not physteany m()· 

### if,y the aircraft, install any new equipment or wiring, or alter existingwiring in

### ~my way. As such, the EWI maintenance requirements of 14 CFR Part 26.11 are not

### appli~ble and exemption from this rule ha no impact on flight safety. This exemption would also benefit the publfc for other, similar STC projects which do not physically modify the aircraft, install any new equipmentorwiring:, 

### or alt 

## .r existing wiring In any way. Sincerely,

Anthony Pilcher Director, Technology, Innovation & 

### Compliance Armstrong Aerospace 1437 Harmony Court, Itasca, IL60143 Anthony. Pilcher@armstrongaerospace.com (630)**285~0200** 

### ext. 112 Cc: Jamie Lutkus Certification Manager Armstrong Aerospace 1437 Harmony Court, Itasca, IL 60143 Jamie.Lutkus@armstrongaerospace.com (630) 285·0200 ext. 131 Allen Boettcher Senior Program Manager Armstrong Aerospace Inc. 1437 Harmony Court, Itasca, IL 60143 Allen'.Boettcher@Armstrongaerospace.com {630)**285~0200** 

### x1

## os

143.71:f•nnony Ct. lmsc•, IL 60143 www.•nnstrongaerosp•ce.com (630) 285.0200 Phone 

### (630) 235.0201 

### Fax

# ARMSTR NG AEROSPACE February 20, 2013
U.S. Department ofTransportation Docket Operations, West Building Ground Floor, Room W12-140 1200 New Jersey Avenue, SE, Washington, DC 20590
Re: Updated Exemption Application to 14 CFR Part 26, Subpart B, 

### § 26.11(c)
To whom it may concern, Armstrong Aerospace is seeking an exemption from the Electrical Wiring Interconnection Systems (EWIS) maintenance requirements of 14 CFR Part 26, Subpart B, for Supplemental Type Certificate (STC) applications to certify aircraft compatibility with cellular and wireless data technologies, i.e. Transmitting Portable Electronic Device (TPED) Compatibility.STC projects. This request is for an exemption from 14 CFR Part 26.11 (c).
Per the guidance of 14 CFR 11.81 (a) through (h), the following items are addressed as part ofthis exemption request: (a) Your name and mailing address and, if you wish, other contact information such as a fax number, telephone number, or e-mail address Anthony Pilcher Director, Technology, Innovation & Compliance Armstrong Aerospace Address: 1437 Harmony Court, Itasca, IL 60143 Email: Anthony. Pilcher@armstrongaerospace.com Telephone; (630) 285-0200 ext. 112 (b) The specific section or sections of 14 CFR from which you seek exemption
14 CFR Part 26, Subpart B, 

### § 26.11 (c) (c) The extent of relief you seek and the reasons for seeking the relief
This request is for a complete exemption from 14 CFR Part 26. 11(c) forSTC applications to certify aircraft compatibility with cellular and wireless data technologies, i.e. Transmitting Portable Electronic Device (TPED) Compatibility STC projects.
These TPED Compatibility STC projects do not physically modify the aircraft, install any new equipment or wiring, or alter existing wiring in any way. As such, the EWIS maintenance requirements of 14 CFR Part 26.11(c) are not applicable and exemption from this rule has no impact on flight safety. (d) The reasons why granting your request would be in the public interest; that is, how it would benefit the public as a whole
This exemption would also benefit the public for other, similar STC projects which do not physically modify the aircraft, install any new equipmentor wiring, or alter existing wiring in any way. (e) The reason why granting the exemption would not adversely affect safety, or how the exemption would provide a level of safety at least equal to that provided by the rule from which you seek exemption 1437 Harmony Ct. Itasca, IL 60143 www.armstrongaerospace.com (630) 285-0200 Phone (630) 285-0201 FaxPlease reference the Armstrong Aerospace response to item 14 CFR 11.81 (c) above. This exemption has no impact on flight safety. 

### (f) A summary we can publish in the Federal Register, stating: (1) The rule from which you seek the exemption; and (2) A brief description ofthe nature ofthe exemption you seek
Please reference the Armstrong Aerospace response to item 14 CFR 11.81(c) above for a summary that can be published in the Federal Register. 

### (g) Any additional information, views, or arguments to support your request None. 

### (h) If

### you want to exercise the privileges ofyour exemption outside the United States, the reason{s) you need to do so
These TPED Compatibility STC projects do result in validated STCs with foreign CAAs. However, to date most ofthe foreign CAAs that have issued STCSfor these TPED Compatibility projects do not have an equivalent 14 CFR Part 26.11(c) regulation. Ifa foreign CAA does have an equivalent (or nearly equivalent) 14 CFR Part 26.11 (c) regulation Armstrong Aerospace would exercise the privilege ofthis exemption to align the applicable FAA and foreign CAA regulations.

Additionally, Armstrong Aerospace would like to request that the FAA forego the public comment process. Armstrong Aerospace is aware that other applicants have requested and received an exemption from 14 CFR Part 26.11 (c) for projects that do not install any wiring or alter existing wiring in any way. As such, granting this exemption does not set a precedent and would be consistent with identical, previously granted exemptions. Per 14 CFR 11.87(a) and (b), both ofthese reasons support the FAA foregoing the public comment process.
Sincerely,

Anthony Pilcher Director, Technology, Innovation & Compliance Armstrong Aerospace 1437 Harmony Court, Itasca, IL 60143 Anthony.Pilcher@armstrongaerospace.com (630) 285-0200 ext. 112 Cc: Jamie Lutkus Certification Manager Armstrong Aerospace 1437 Harmony Court, Itasca, IL 60143 Jamie.Lutkus@armstrongaerospace.com (630) 285-0200 ext. 131
Allen Boettcher Senior Program Manager Armstrong Aerospace Inc. 1437 Harmony Court, Itasca, IL 60143 1437 Harmony Ct. Itasca, IL 60143 www.armstrongaerospace.com (630) 285-0200 Phone (630) 285-0201 Fax

### Allen.Boettcher@Armstrongaerospace.com (630) 285-0200 x1 08

1437 Harmony Ct. Itasca, IL 60143**www.armstrongaerospace~com** (630) 285-0200 Phone (630) 285-0201 Fax

# D

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## Rebruary 6, 2013

Mr. William A:. 

## Pilcher**Dir~ctor, T~chnolog~;**  

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## to address these**i~ues,** 

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## Aerospace CAADOt 

## address these**issu:~.** 

## We will advise 

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## after receiving the additional information. 

## Ifyou have 

## questions in 

## the**meantime~** 

## pleueeontaet·Steve 

## Slotte at 

## €425:}'227-2315.

Paul 

## Bemado Acting Mat1ager, Airplane &

## Flightcrew Interface, 

## ANM.;.tll TransportStandards/Staff Transport AirplaneDirectorate Aircraft Certification Serv.ice