EXHIBIT 15 May 13, 1999 Securities and Exchange Commission 450 Fifth Street Washington, D.C. 20549 Dear Ladies and Gentlemen: We are aware that the March 31, 1999 Quarterly Report on Form 10-Q of AlliedSignal Inc. which includes our report dated May 13, 1999 (issued pursuant to the provisions of Statement on Auditing Standard No. 71) will be incorporated by reference in the Prospectuses constituting part of AlliedSignal Inc.'s Registration Statements, on Forms S-8 (Nos. 33-09896, 33-51455, 33-55410, 33-58347, 33-60261, 33- 62963, 33-64295, 333-14673, 333-57509, 333-57515, 333-57517 and 333-57519), on Forms S-3 (Nos. 33-13211, 33-14071, 33- 55425, 33-64245, 333-22355, 333-44523, 333-45555, 333-49455 and 333-68847) and on Form S-8 (filed as an amendment to Form S-14, No. 2-99416-01). We are also aware of our responsibilities under the Securities Act of 1933. Very truly yours, PricewaterhouseCoopers LLP