2021-23-51: Turbine Engine Compression Section
Emergency order 2021-23-51 is an airworthiness directive. The FAA's subject line: Turbine Engine Compression Section. It names the General Electric CF34-8C1, General Electric CF34-8C5, General Electric CF34-8C5A1, General Electric CF34-8C5B1, General Electric CF34-8E5, General Electric CF34-8E5A2, General Electric CF34 series engines: about 1,791 aircraft on the U.S. register today across them, though an order usually covers particular versions or serial numbers rather than every one. System: engine.
What it applies to as the FAA lists it
- Kind of product
- Engine
- Makes
- General Electric Company
- Models
- CF34-8C1, CF34-8C5, CF34-8C5A1, CF34-8C5A2, CF34-8C5A3, CF34-8C5B1, CF34-8E2, CF34-8E2A1, CF34-8E5, CF34-8E5A1, CF34-8E5A2, CF34-8E6, CF34-8E6A1
- Engine series
- General Electric CF34-8C1 1 aircraft
General Electric CF34-8C5 272 aircraft
General Electric CF34-8C5A1 10 aircraft
General Electric CF34-8C5B1 135 aircraft
General Electric CF34-8E5 698 aircraft
General Electric CF34-8E5A2 3 aircraft
General Electric CF34 series 672 aircraft
Dates and paperwork
- Docket
- Unknown
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of November 6, 2026. Connections as data: /graph/directive/2021-23-51.json · aircraft systems.