AIR

- 14

- 037

- E Exemption No. 11076

UNITED STATES OF AMERICA

DEPARTMENT OF TRANSPORTATION

FEDERAL AVIATION ADMINISTRATION WASHINGTON, DC 20591

In the matter of the petition of

HART ZELL PROPELLER INC. Regulatory Docket No. FAA

- 2013

- 0982

for an exemption from § 45.13(a)(4)

of Tit le 14, Code of Federal Regulations

GRANT OF EXEMPTION

By letter dated November 7, 2013

, and supplemental information dated August 14, 2014 Mr. Richard Edinger

, VP Certification and Flight Safety, Hartzell Propeller Inc. (Hartzell)

, One Propeller Place, Piqua, OH 45356

- 26 34 , petitioned the Federal Aviation Administration (FAA) on behalf of Hartzell for an exemption from § 45.13(a)(4) of Title 14, Code of Federal Regulations (14 CFR). This exemption, if granted, would relieve Hartzell from the requirement to include the ty pe certificate (TC) number as part of the identification marks on

the propeller blades it manufactures

.

The petitioner requ ires relief from the following regulations:

Section 45.11(c) (2) prescribes that :

Propellers and propeller blades and hubs

. E ach pers on who produces a propeller, propeller blade, or propeller hub under a type certificate or production certificate must mark each product or part using an approved fireproof method. The marking must

—

(2) Contain the information specified in § 45.13 ;

Sectio n 45.13(a)(4) prescribes that:

(a) T he identification required by § 45.1 1 (a) through (c) must include the following

information:

(4) Type certificate number, if any.2

The petitioner supports its request with the following information:

The petitioner state s that it manufactures a wide variety of propeller models that fit numerous

and identical blade models. Hartzell makes 12 different kinds of blade series and e ach blade series can have multiple associated TC s . Hartzell notes that all but 3 of its 56 type

- c ertificated propellers specify propeller blades that fit multiple propellers. The petitioner further states
that current regulation s require it to mark each TC number on the propeller blade and that

t here are instances when there is not enough room to inc lude all TC numbers on the blade.

The petitioner believes that a grant of exemption will be in the public interest because it would alleviate confusion experienced by the flying public. The petitioner believes that marking all TC numbers on its propell er blades will introduce confusion as to the eligibility of previously shipped blades that are being used in service without the TC numbers stamped onto the propeller blade butt. Additionally, the petitioner believes that as the number of eligible TC numbe rs for a specific blade design will increase over time

, these numbers will not be listed on previously manufactured blades

. Accordingly

, t he petitioner believes that

these circumstances can cause three distinct variations of propeller blade markings ( n o T C number, some TC numbers, and all TC numbers) and that these variations will cause confusion with respect to the installation eligibility of propeller blades.

A summary of the petition was published in the Federal Register on January 16, 2014 (79 FR 292 9) and n o comments were received.

The FAA’s analysis is as follows:

The FAA has reviewed Hartzell’s petition

, supporting information , and additional information, and a fter careful consideration, we find a grant of exemption would provide an equivalent lev el of safety to the regulation s for which relief is required and would be in the public interest.

The FAA finds that an equivalent level of safety to the marking requirements of §§ 45.11(c)(2) and 45.13(a)(4) will be provided when the petitioner marks its blades subject to the conditions and limitations set forth in this exemption. Compliance with these

conditions and li m itations will provide the installer with sufficient information to ensure that

it has the correct article for installation and for th e FAA to fulfill its oversight and continued operational safety obligations. For those blades that can be installed on more than one propeller , Hartzell may place the term “multiple” in lieu of the applicable TC numbers. The use of the term “multiple” in lieu of marking the blades with the applicable TC numbers is an alternative to meeting the requirement s of § § 45.11(c)(2) and 45.13(a)(4) . Hartzell may still choose to mark the individual blades with all applicable TC numbers.

The FAA’s Decision

In cons ideration of the foregoing, I find that a grant of exemption is in the public interest. Therefore, pursuant to the authority contained in 49 U.S.C. §§ 106(f), 40113 and 44701, delegated to me by the Administrator, Hartzell Propeller Inc. (Hartzell) is gran ted an3

exemption from 14 CFR § § 45.11(c)(2) and 45.13(a)(4) to the extent necessary to permit

Hartzell to not include all applicable TC numbers as part of the identification marks on the propeller blade s it manufactures , subject to the conditions and limit ations listed below.

Conditions and Limitations

1. All of t he information specified in § 45.13(a) must continue to be placed on propeller

blades for which only one type certificate (TC) is applicable.

2. For propeller blades for which mor e than one TC is appli cable

, the term “multiple” may be marked on the blade in lieu of the applicable TC numbers.

This exemption terminates on October 3 1 , 201 6 , unless sooner superseded or rescinded.

Issued in Washington, D.C., on October 6, 2014

.

Sincerely,

/s/

Frank P. Paskiewicz Deputy Director, Aircraft Certification Service