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  • Chapter 9: Flight Manuals and Other Documents › Minimum Equipment Lists (MEL) and Operations With Inoperative Equipment

    equipment must be placarded INOPERATIVE. All small rotorcraft, non-turbine powered airplanes, gliders, or lighter-than-air aircraft operated under 14 CFR part 91 are eligible to use the maintenance deferral provisions of 14 CFR, part 91, section ... However, once an operator requests an MEL, and a Letter of Authorization (LOA) is issued by the FAA, then the use of the MEL becomes mandatory for that aircraft. All maintenance deferrals must be accomplished in accordance with the terms…

  • Chapter 8: Ground Procedures and Flight Preparations › Preflight › Minimum Equipment Lists (MELs) and Operations with Inoperative Equipment

    terms and conditions of the MEL and the operatorgenerated procedures document. The use of an MEL for rotorcraft operated under part 91 also allows for the deferral of inoperative items or equipment. The primary guidance becomes the FAA-approved ... issued to that specific operator and N-numbered helicopter. The FAA has developed master minimum equipment lists (MMELs) for rotorcraft in current use. Upon written request by a rotorcraft operator, the local FAA Flight Standards District Office (FSDO) may issue…

  • 39 ENHANCED FLIGHT VISION SYSTEM (EFVS)

    ENHANCED FLIGHT VISION SYSTEM (EFVS). There are two types of EFVS operations: EFVS operations to 100 feet above the touchdown zone elevation (TDZE) and EFVS operations to touchdown and rollout. An EFVS is an installed aircraft system which uses ... show their relative positions and elevation) through the use of imaging sensors, including, but not limited to, forward-looking infrared, millimeter wave radiometry, millimeter wave radar, or low-light level image intensification. An EFVS includes the display element, sensors, computers…

  • Chapter 6: Weight and Balance › Weight › Weight Limitations

    attached to the helicopter. Some large cargo helicopters may have several attachment points for sling load or winch operations. These helicopters can carry a tremendous amount of weight when the attachment point is directly under the CG of the aircraft ... Weight Limitations Weight limits are necessary to guarantee the structural integrity of the helicopter, enable pilots to predict helicopter performance and insure aircraft controllability. Although aircraft manufacturers build in safety factors, a pilot should never intentionally exceed the load limits…

  • 14 CFR § 121.417 Crewmember emergency training.

    operate the following equipment: (A) Each type of emergency exit in the normal and emergency modes, including the actions and forces required in the deployment of the emergency evacuation slides; (B) Each type of installed hand fire extinguisher; (C) Each ... Donning, use, and inflation of individual flotation means, if applicable; and (E) Ditching, if applicable, including but not limited to, as appropriate: (1) Cockpit preparation and procedures; (2) Crew coordination; (3) Passenger briefing and cabin preparation; (4) Donning and inflation…

  • Chapter 9: Aircraft Electrical System › Light Multiengine Aircraft › Power Distribution on Multiengine Aircraft

    that splits (shares) the electrical loads by connecting to each sub-bus through a diode and current limiter. The generators are operated in parallel and equally carry the loads. The primary power supplied for this aircraft is DC, although small ... which should always have power available. Other items on this bus would be critical to flight safety, such as fire extinguishers, fuel shutoffs, and fuel pumps. During a massive system failure, the hot battery bus is the last…