Exhibit 15

October 22, 2001

Securities and Exchange Commission
450 Fifth Street, N.W.
Washington, D.C. 20549

Ladies and Gentlemen:

We are aware that our report dated October 16, 2001 on our review of interim financial information of United Technologies Corporation as of and for the period ended September 30, 2001 and included in the Corporation's quarterly report on Form 10-Q for the quarter then ended is incorporated by reference in the Prospectus constituting part of its Registration Statements on Form S-3 (Nos. 333-51830 and 333-60276), in the Registration Statement on Form S-4 (No. 333-77991) as amended by Post-Effective Amendment No. 1 on Form S-8 (No. 333-77991-01) and in the Registration Statements on Form S-8 (Nos. 333-21853, 333-18743, 333-21851, 33-57769, 33-45440, 33-11255, 33-26580, 33-26627, 33-28974, 33-51385, 33-58937, 2-87322, 333-77817, and 333-82911).

Yours very truly,

/s/ PricewaterhouseCoopers LLP
PricewaterhouseCoopers LLP
Hartford, Connecticut