CFM International LEAP-1B27
CFM International LEAP-1B27 is an active high-bypass turbofan variant in the LEAP-1B family. EASA E.115 Issue 09 lists LEAP-1B27 among the certified LEAP-1B models; Boeing identifies LEAP-1B as the 737 MAX engine and its airport-planning material identifies the LEAP-1B27 rating on the 737-9. This exact propulsion identity preserves the LEAP-1B family, GE/Safran developers, CFM International manufacturer, and does not assert an additional vehicle-family installation link.
Identity
- Aliases
- LEAP-1B27CFM LEAP-1B27CFM International LEAP-1B27
- Domains
- aviation
- Identity Level
- variant
- Kind
- turbofan
- Name
- CFM International LEAP-1B27
- Status
- active
Details
- Air Breathing Specs
- Max Thrust Kn
- 124.71
- Sea Level Static Thrust Kn
- 124.71
- Spool Count
- 2
- Description
- CFM International LEAP-1B27 is an active high-bypass turbofan variant in the LEAP-1B family. EASA E.115 Issue 09 lists LEAP-1B27 among the certified LEAP-1B models; Boeing identifies LEAP-1B as the 737 MAX engine and its airport-planning material identifies the LEAP-1B27 rating on the 737-9. This exact propulsion identity preserves the LEAP-1B family, GE/Safran developers, CFM International manufacturer, and does not assert an additional vehicle-family installation link.
- Developers
- Family
- Manufacturers
Links
- Official Url
- https://www.easa.europa.eu/en/downloads/20810/en
Assets & Meta
- Creation Time
- August 8, 2026 at 02:53:31 UTC
- Updated Time
- August 23, 2026 at 17:23:45 UTC
Other
- Sources
- Accessed Date
- 2026-08-07
- Note
- Current EASA type-certificate data sheet explicitly lists LEAP-1B27 among the approved LEAP-1B engine models and preserves its rating identity within the series.
- Publisher
- European Union Aviation Safety Agency
- Title
- EASA E.115 LEAP-1B series engines, Issue 09
- Accessed Date
- 2026-08-07
- Note
- Boeing's airport-planning document identifies LEAP-1B27 on the 737-9 and distinguishes it from LEAP-1B28 ratings; this packet intentionally defers the vehicle relationship.
- Publisher
- The Boeing Company
- Title
- 737 MAX Airport Characteristics, Rev H