Airworthiness Directive

AD 2004-24-04: Rolls-Royce Corporation (Formerly Allison Engine Company, Allison Gas Turbine Division…

Airworthiness Directives; Rolls-Royce Corporation (Formerly Allison Engine Company, Allison Gas Turbine Division, and Detroit Diesel Allison) (RRC) Models 250-C30R/3, -C30R/3M, -C47B, and -C47M Turboshaft Engines

Effective: Jan 3, 2005
Published: Nov 26, 2004
Registered aircraft: 18

Models this AD may apply to

AI-extracted — verify against original

Matched from the AD's applicability section. Applicability must be confirmed by a mechanic against the aircraft's records.

Engines

ALLISON 250-C30R/3
ALLISON 250-C30R/3M
ALLISON 250-C47B
ALLISON 250-C47M

Only with: Engines with a hydromechanical unit (HMU) P/N listed in 1.A. Group A of RRC Alert CEB A-73-3103, Revision 4, and CEB A-73-6030, Revision 4, both dated December 2, 2003.
Only with: Engines with a hydromechanical unit (HMU) P/N listed in 1.A. Group A of RRC Alert CEB A-73-3103, Revision 4, and CEB A-73-6030, Revision 4, both dated December 2, 2003.

Applicability

From the AD text

This AD applies to Rolls-Royce Corporation (formerly Allison Engine Company, Allison Gas Turbine Division, and Detroit Diesel Allison) (RRC) models 250-C30R/3, -C30R/3M, -C47B, and -C47M turboshaft engines that have a hydromechanical unit (HMU) with a part number (P/N) listed in 1.A. Group A of RRC Alert Commercial Engine Bulletins (ACEB) No. CEB A-73-3103, Revision 4, dated December 2, 2003; and No. CEB A-73-6030, Revision 4, dated December 2, 2003. These engines are installed on, but not limited to, Bell OH-58D, Bell Helicopter Textron 407, Boeing AH/MH-6M, and MD Helicopters Inc. 600N helicopters.

Related ADs

Supersedes or revises AD 2003-13-10.

Read the AD in the Federal Register Report an error on this page