UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of

The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): April 13, 2011

UNITED TECHNOLOGIES CORPORATION

(Exact name of registrant as specified in its charter)

One Financial Plaza

Hartford, Connecticut 06103

(Address of principal executive offices, including zip code)

Registrant’s telephone number, including area code

(860) 728-7000

N/A

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Item 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On April 13, 2011, United Technologies Corporation (“UTC”) held its 2011 Annual Meeting of Shareowners. Shareowners submitting votes for the meeting approved the adoption of amendments to the United Technologies Corporation 2005 Long-Term Incentive Plan (the “Plan”). The amendments authorize the issuance of an additional 48 million shares of Common Stock under the Plan, extend the term of the Plan until April 30, 2017, impose certain additional restrictions on assignment of awards by recipients, clarify minimum vesting periods, confirm certain performance metrics for performance-based awards and adopt certain additional changes in Plan terms and conditions. The amendments became effective on April 13, 2011, upon approval by shareowners.

The foregoing description of the Plan is qualified in its entirety by reference to the complete terms and conditions of the Plan, a copy of which is included herewith as Exhibit 10.1 to this Report and incorporated herein by reference.

Item 5.07. Submission of Matters to a Vote of Security Holders.

United Technologies Corporation held its Annual Meeting of Shareowners on April 13, 2011. As of February 15, 2011, the record date for the meeting, 921,194,240 shares of UTC Common Stock were issued and outstanding. A quorum of 791,825,652 shares of Common Stock were present or represented at the meeting.

The following individuals were elected to serve as directors for a one-year term expiring at the 2012 Annual Meeting of Shareowners or upon the election and qualification of their successors:

Louis R. Chênevert, John V. Faraci, Jean-Pierre Garnier, Jamie S. Gorelick, Edward A. Kangas, Ellen J. Kullman, Charles R. Lee, Richard D. McCormick, Harold McGraw III, Richard B. Myers, H. Patrick Swygert, André Villeneuve, and Christine Todd Whitman.

The Shareowners voted on the following matters and cast their votes as described below.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

The following Exhibits are included herewith:

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

EXHIBIT INDEX