Exhibit 99.3

October 23, 2016

Dear B/E Aerospace Associates,

This morning, Rockwell Collins and B/E Aerospace jointly announced that we are planning to merge our two companies into a single entity, with a transaction closing expected during spring of 2017. Rockwell Collins is the perfect fit for our employees and our customers. By joining forces with Rockwell Collins we are combining two companies with complementary capabilities in aircraft avionics, cabin management, connectivity and interiors. We share a culture and reputation for innovation, quality, on-time delivery and global customer support to benefit our customers.

As our two management teams have considered the potential benefits of this merger, we have become excited at the new business development opportunities that our two companies can pursue together.

2017 will mark the 30th year since my brother Bob and I founded the company in 1987. Thanks to so many of you we have come a long way together. While I am reluctant to disengage from the intellectual stimulation of our joint journey, upon consummation of the merger, I plan to retire from day to day involvement in the company. Werner Lieberherr, whose partnership has been invaluable to me, will lead the B/E Aerospace business which will become the aircraft interior systems segment of Rockwell Collins. Werner will report directly to Robert “Kelly” Ortberg, Rockwell Collins Chairman, President and CEO.

For the vast majority of our employees, this merger will create opportunities, as you will now be part of a stronger company that is better able to serve our customers — we are bringing to Rockwell Collins a whole new set of offerings. I know Kelly and his team have enormous respect for our people and what we’ve built here, and we share Rockwell Collin’s culture of focusing on our customers, innovation and commitment to quality. As with any merger of this kind, there will be some overlap in certain functions, but we are committed to talking personally to any impacted employees and treating them, as we always do, with fairness and respect. I realize that a transaction such as this can be distracting, but I’d ask you all to focus on conducting business as usual and doing everything you can to meeting our customers’ needs. It has been one of my greatest pleasures in life to have worked with so many of you over the past 3 decades. I sincerely thank you for your dedication and your contributions. I look forward to hearing about and reading about your future progress.

Cautionary Statement Regarding Forward-Looking Statements

This communication contains “forward-looking” statements as that term is defined in Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended by the Private Securities Litigation Reform Act of 1995, including statements regarding the proposed acquisition of B/E Aerospace by Rockwell Collins. All statements, other than historical facts, including statements regarding the expected timing of the closing of the proposed transaction; the ability of the parties to complete the proposed transaction considering the various closing conditions; the expected benefits of the proposed transaction such as improved operations, enhanced revenues and cash flow, growth potential, market profile and financial strength; the competitive ability and position of the combined company following completion of the proposed transaction; and any assumptions underlying any of the foregoing, are forward-looking statements. Forward-looking statements concern future circumstances and results and other statements that are not historical facts and are sometimes identified by the words “may,” “will,” “should,” “potential,” “intend,” “expect,” “endeavor,” “seek,” “anticipate,” “estimate,” “overestimate,” “underestimate,” “believe,” “could,” “project,” “predict,” “continue,” “target” or other similar words or expressions. Forward-looking statements are based upon current plans, estimates and expectations that are subject to risks, uncertainties and assumptions. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those indicated or anticipated by such forward-looking statements. The inclusion of such statements should not be regarded as a representation that such plans, estimates or expectations will be achieved. Important factors that could cause actual results to differ materially from such plans, estimates or expectations include, among others, (1) that one or more closing conditions to the transaction, including certain regulatory approvals, may not be satisfied or waived, on a timely basis or otherwise, including that a governmental entity may prohibit, delay or refuse to grant approval for the consummation of the proposed transaction, may require conditions, limitations or restrictions in connection with such approvals or that the required approval by the stockholders of each of Rockwell Collins and B/E Aerospace may not be obtained; (2) the risk that the proposed transaction may not be completed in the time frame expected by Rockwell Collins or B/E Aerospace, or at all; (3) unexpected costs, charges or expenses resulting from the proposed transaction; (4) uncertainty of the expected financial performance of the combined company following completion of the proposed transaction; (5) failure to realize the anticipated benefits of the proposed transaction, including as a result of delay in completing the proposed transaction or integrating the businesses of Rockwell Collins and B/E Aerospace; (6) the ability of the combined company to implement its business strategy; (7) difficulties and delays in achieving synergies and cost savings of the combined company; (8) inability to retain and hire key personnel; (9) the occurrence of any event that could give rise to termination of the proposed transaction; (10) the risk that stockholder litigation in connection with the proposed transaction may affect the timing or occurrence of the contemplated merger or result in significant costs of defense, indemnification and liability; (11) evolving legal, regulatory and tax regimes; (12) changes in general economic and/or industry specific conditions; and (13) other risk factors as detailed from time to time in Rockwell Collins’ and B/E Aerospace’s reports filed with the SEC, including Rockwell Collins’ and B/E Aerospace’s respective annual reports on Form 10-K, periodic quarterly reports on Form 10-Q, periodic current reports on Form 8-K and other documents filed with the SEC.

Any forward-looking statements speak only as of the date of this communication. Neither Rockwell Collins nor B/E Aerospace undertakes any obligation to update any forward-looking statements, whether as a result of new information or development, future events or otherwise, except as required by law. Readers are cautioned not to place undue reliance on any of these forward-looking statements.

No Offer or Solicitation

This communication is for informational purposes only and not intended to and does not constitute an offer to subscribe for, buy or sell, the solicitation of an offer to subscribe for, buy or sell or an invitation to subscribe for, buy or sell any securities or the solicitation of any vote or approval in any jurisdiction pursuant to or in connection with the proposed transaction or otherwise, nor shall there be any sale, issuance or transfer of securities in any jurisdiction in contravention of applicable law. No offer of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act of 1933, as amended, and otherwise in accordance with applicable law.

Additional Information and Where to Find It

In connection with the proposed transaction, Rockwell Collins will prepare a registration statement on Form S-4 that will include a joint proxy statement/prospectus (the “Joint Proxy Statement/Prospectus”) for the stockholders of B/E Aerospace and Rockwell Collins to be filed with the SEC, and each will mail the Joint Proxy Statement/Prospectus to their respective stockholders and file other documents regarding the proposed transaction with the SEC. This communication is not a substitute for any proxy statement, registration statement, proxy statement/prospectus or other document Rockwell Collins and/or B/E Aerospace may file with the SEC in connection with the proposed transaction. INVESTORS AND SECURITY HOLDERS ARE URGED TO READ CAREFULLY AND IN THEIR ENTIRETY THE JOINT PROXY STATEMENT/PROSPECTUS WHEN IT BECOMES AVAILABLE, ANY AMENDMENTS OR SUPPLEMENTS TO THE JOINT PROXY STATEMENT/PROSPECTUS, AND OTHER DOCUMENTS FILED BY ROCKWELL COLLINS OR B/E AEROSPACE WITH THE SEC IN CONNECTION WITH THE PROPOSED TRANSACTION, BECAUSE THESE DOCUMENTS WILL CONTAIN IMPORTANT INFORMATION. The Joint Proxy Statement/Prospectus (when available) will be mailed to stockholders of Rockwell Collins and B/E Aerospace. Investors and security holders will be able to obtain free copies of Joint Proxy Statement/Prospectus and other documents filed with the SEC by Rockwell Collins and/or B/E Aerospace through the website maintained by the SEC at www.sec.gov. Investors and security holders will also be able to obtain free copies of the documents filed by Rockwell Collins with the SEC on Rockwell Collins’ internet website at http://www.rockwellcollins.com or by contacting Rockwell Collins’ Investor Relations at Rockwell Collins, 400 Collins Rd. NE, Cedar Rapids, IA 52498 or by calling (319) 295-7575. Investors and security holders will also be able to obtain free copies of the documents filed by B/E Aerospace with the SEC on B/E Aerospace’s internet website at http://www.beaerospace.com or by contacting B/E Aerospace’s Investor Relations at B/E Aerospace, Inc., 1400 Corporate Center Way, Wellington, FL or by calling (561) 791-5000.

Participants in the Solicitation

Rockwell Collins, B/E Aerospace, their respective directors, executive officers and other members of its management and employees may be deemed to be participants in the solicitation of proxies in connection with the proposed transaction. Information regarding the persons who may, under the rules of the SEC, be deemed participants in the solicitation of proxies in connection with the proposed transaction, including a description of their direct or indirect interests, by security holdings or otherwise, will be set forth in the Joint Proxy Statement/Prospectus and other relevant materials when it is filed with the SEC. Information regarding the directors and executive officers of Rockwell Collins is contained in Rockwell Collins’ proxy statement for its 2016 annual meeting of stockholders, filed with the SEC on December 16, 2015, and Rockwell Collins’ Current Report on Form 8-K filed with the SEC on April 29, 2016. Information regarding the directors and executive officers of B/E Aerospace is contained in B/E Aerospace’s proxy statement for its 2016 annual meeting of stockholders, filed with the SEC on April 28, 2016. These documents can be obtained free of charge from the sources indicated above.