EX-23.1 4 d92562ex23-1.txt CONSENT OF DELOITTE & TOUCHE, LLP EXHIBIT 23.1 INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in this Registration Statement of Petroleum Helicopters, Inc. on Form S-8 of our report dated March 29, 2001, appearing in the Annual Report on Form 10-K of Petroleum Helicopters, Inc. for the year ended December 31, 2000. /s/ DELOITTE & TOUCHE LLP New Orleans, Louisiana November 21, 2001