Continuous improvement
With recent improvements like a reverse bleed system (RBS) and a more durable high-pressure turbine (HPT), we have line of sight to reduce operator maintenance burden and achieve the time on wing standards that CFM56 customers have long enjoyed.
HPT
CFM designed the HPT durability kit to extend time between shop visits and double time on wing in severe operating environments, which the company has validated with more than 17,000 cycles of dust ingestion testing to date.
LEAP-1A
- Introduced Dec. 2024
- Incorporated into 40% of fleet of of July 2026
LEAP-1B
- Hardware fully certified
- Full industrial cutover set for early 2027
RBS
CFM designed the reverse bleed system to reduce the need for on-wing fuel nozzle replacements by mitigating carbon build-up after engine shutdown. The system has experienced more than two million activations and continues to operate as intended.
LEAP-1A
- Introduced April 2024
- Installed in 70% of fleet as of July 2026
LEAP-1B
- Certified at the engine level
- Aircraft-level certification in process