EASA Regulations for General Electric CT7-5

3 airworthiness directives and regulations affecting General Electric CT7-5.

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New ADs and bulletins for General Electric CT7-5, summarized like the ones below, every Monday.

EASA AD US-2025-05-02

Apr 2, 2025

Engine - Stage 1 Turbine Forward Cooling Plate and Stage 2 Turbine Aft Cooling Plate - Replacement

The document titled 'Engine - Stage 1 Turbine Forward Cooling Plate and Stage 2 Turbine Aft Cooling Plate - Replacement' is a regulatory directive concerning the replacement of specific turbine cooling plates in aircraft engines. It addresses maintenance and replacement procedures for the Stage 1 turbine forward cooling plate and the Stage 2 turbine aft cooling plate components. The directive is relevant to aviation maintenance professionals responsible for engine upkeep and safety compliance.

Airworthiness Directive
  • General Electric CT7-5
  • General Electric CT7-7
  • General Electric CT7-9

EASA AD US-2023-21-07

Dec 6, 2023

Engine - Main Propeller Shaft - Inspection

Airworthiness Directive 2023-21-07 is a final rule issued by the Federal Aviation Administration (FAA) addressing certain General Electric Company Model CT7 series engines, including CT7-5A2, CT7-5A3, CT7-7A, CT7-7A1, CT7-9B, CT7-9B1, CT7-9B2, CT7-9C, and CT7-9C3. This directive mandates inspections of the main propeller shaft to prevent in-flight failures that could result in loss of the propeller and engine thrust control. It applies to engines installed on U.S. registered aircraft and includes visual, fluorescent penetrant, and ultrasonic inspections.

Airworthiness Directive
  • General Electric CT7-5
  • General Electric CT7-7
  • General Electric CT7-9

EASA AD US-2018-03-13

Feb 28, 2018

Superseded by FAA AD 2023-21-07

FAA Airworthiness Directive 2018-03-13 is a final rule addressing certain General Electric Company CT7 series turboprop engines, specifically models CT7-5A2, CT7-5A3, CT7-7A, CT7-7A1, CT7-9B, CT7-9B1, CT7-9B2, CT7-9C, and CT7-9C3 with main propeller shaft part number 77581-11 installed. This directive mandates initial and repetitive visual and fluorescent-penetrant inspections of the main propeller shaft to detect wear, corrosion, and cracks. It was issued to prevent unsafe conditions resulting from main propeller shaft failure.

Airworthiness Directive
  • General Electric CT7-5
  • General Electric CT7-7
  • General Electric CT7-9