FAA AC 33.28-1:2001
FAA AC 33.28-1:2001 Compliance Criteria For 14 Cfr Section 33.28, Aircraft Engines, Electrical And Electronic Engine Control Systems Gives guidance and acceptable methods, but not the only methods, that may be used to demonstrate compliance with Section 33.28 of Title 14 of the Code of Federal Regulations (14 CFR 33.28), Electrical