# Federal Register #FAA-2026-11817

FAA proposal for CFM56-7B fan-blade inspections and corrective actions

**Buyer:** Federal Aviation Administration (FAA)
**Posted:** October 27, 2026
**Respond By:** November 28, 2026
**Identifier:** FAA-2026-11817

The FAA proposal addresses fan-blade safety on specified CFM56-7B engines; it is a proposed safety rule, not a procurement opportunity.
- Government buyer: U.S. Department of Transportation, Federal Aviation Administration (FAA); no specific office is identified.
- OEM: **CFM International, S.A. (CFM)** manufactures the affected CFM56-7B engines. **GE Aviation Fleet Support** is identified as a contact for CFM material.
- Products and requested actions:
  - CFM56-7B engine fan blades (model identifier: CFM56-7B; quantity not specified). Visually inspect for cracks, tears, tip curls, or local leading-edge distortion; remove and replace blades found unserviceable.
  - Inspect the adjacent clockwise fan blade, viewed looking aft, and replace it if unserviceable.
  - Report inspection results to CFM, following CFM Service Bulletin CFM56-7B S/B 72-1119.
- Compliance timing: For installed engines, inspection is required within 400 flight cycles or 90 days after the rule takes effect, whichever comes first; engines not installed must be inspected before further flight. Reporting is due within 30 days after inspection or 30 days after the rule takes effect, whichever is later.
- Safety concern: A fan-blade failure could cause debris to damage the aircraft fuselage, depressurize the cabin, and require an emergency descent. The FAA estimates 3,450 engines on U.S.-registered aircraft could be affected.
- No contract period, purchase quantity, or contract value is specified.

### Description

The Federal Aviation Administration proposes a new airworthiness directive for specified CFM International, S.A. Model CFM56-7B engines. The proposed requirements include visual inspections of fan blades for unserviceable findings, replacement of affected blades, and additional inspections of adjacent blades where necessary. Inspection results must be reported to CFM when required. The proposal addresses a fan-blade separation event that caused an in-flight engine shutdown, fuselage damage, loss of pressurization, and an emergency descent; comments are due November 27, 2026.

[View original listing](https://www.federalregister.gov/documents/2026/10/27/2026-21852/airworthiness-directives-cfm-international-sa-engines)