CFM International LEAP-1B28K
CFM International LEAP-1B28K high-bypass turbofan variant. FAA simulator documentation records the exact 1B/28K rating for the Boeing 737 MAX engine series, while Boeing identifies LEAP-1B as the 737 MAX powerplant. The -28K rating boundary is preserved without asserting unsupported thrust, installation count, placement, or lifecycle details.
Identity
- Aliases
- LEAP-1B28KLEAP 1B/28KCFM LEAP-1B28K
- Domains
- aviation
- Identity Level
- variant
- Kind
- turbofan
- Name
- CFM International LEAP-1B28K
- Status
- unknown
Details
- Description
- CFM International LEAP-1B28K high-bypass turbofan variant. FAA simulator documentation records the exact 1B/28K rating for the Boeing 737 MAX engine series, while Boeing identifies LEAP-1B as the 737 MAX powerplant. The -28K rating boundary is preserved without asserting unsupported thrust, installation count, placement, or lifecycle details.
- Developers
- Family
- Manufacturers
Links
Assets & Meta
- Creation Time
- August 14, 2026 at 18:20:20 UTC
- Updated Time
- August 14, 2026 at 18:20:20 UTC
Other
- Sources
- Accessed Date
- 2026-08-14
- Note
- FAA simulator documentation records the exact LEAP 1B/28K engine rating for the Boeing 737 MAX simulator configuration.
- Publisher
- Federal Aviation Administration
- Title
- B737 MAX-8 M-07 FAA Simulator Qualification 2026
- Accessed Date
- 2026-08-14
- Note
- Boeing identifies the CFM LEAP-1B engine as the 737 MAX powerplant; no exact -28K installation relationship is asserted in this identity packet.
- Publisher
- The Boeing Company
- Title
- 737 MAX Airport Characteristics