Thu, Dec 24, 2020
AD 2020-25-13 Requires An Ultrasonic Inspection (UI) Of The HPT Stage 2 Disk
The FAA is adopting a new airworthiness directive (AD) for certain CFM International, S.A. (CFM) LEAP-1A23, LEAP-1A24, LEAP-1A24E1, LEAP-1A26, LEAP-1A26CJ, LEAP-1A26E1, LEAP-1A29, LEAP-1A29CJ, LEAP-1A30, LEAP-1A32, LEAP-1A33, LEAP1A33B2, LEAP-1A35A model turbofan engines.
This AD was prompted by an investigation by CFM that showed a subsurface anomaly in a part manufactured using the same material as the LEAP-1A high-pressure turbine (HPT) stage 2 disk. This AD requires an ultrasonic inspection (UI) of the HPT stage 2 disk and replacement of any HPT stage 2 disk that fails the UI with a part eligible for installation. The FAA is issuing this AD to address the unsafe condition on these products. This AD is effective January 25, 2021.
Supplementary Information: The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to certain CFM International, S.A. LEAP-1A23, LEAP-1A24, LEAP1A24E1, LEAP-1A26, LEAP-1A26CJ, LEAP-1A26E1, LEAP-1A29, LEAP-1A29CJ, LEAP-1A30, LEAP-1A32, LEAP-1A33, LEAP-1A33B2, LEAP-1A35A model turbofan engines. The NPRM published in the Federal Register on July 24, 2020 (85 FR 44798). The NPRM was prompted by an investigation by CFM that showed a subsurface anomaly in a part manufactured using the same material as the LEAP-1A HPT stage 2 disk. In the NPRM, the FAA proposed to require an UI of the HPT stage 2 disk and replacement of any HPT stage 2 disk that fails the UI with a part eligible for installation. The FAA is issuing this AD to address the unsafe condition on these products.
More News
“Honored to accept this mission. Time to take over space. Let’s launch.” Source: SecTrans Sean Duffy commenting after President Donald Trump appointed U.S. Secret>[...]
Permanent Echo Radar signals reflected from fixed objects on the earth's surface; e.g., buildings, towers, terrain. Permanent echoes are distinguished from “ground clutter&rd>[...]
Aero Linx: European Hang Gliding and Paragliding Union (EHPU) The general aim of the EHPU is to promote and protect hang gliding and paragliding in Europe. In order to achieve this>[...]
Glider Encountered A Loss Of Lift And There Was Not Sufficient Altitude To Reach The Airport Analysis: The flight instructor reported that while turning final, the glider encounter>[...]
Airplane Climbed To 100 Ft Above Ground Level, At Which Time The Airplane Experienced A Total Loss Of Engine Power On May 24, 2025, at 1300 eastern daylight time, an Aeronca 7AC, N>[...]
Aero-News: Quote of the Day (07.11.25)
See All