Sat, Nov 14, 2020
AD 2020-22-18 Prompted By A Report Of A Propeller Gearbox (PGB) Development Test Conducted By The Manufacturer
The FAA is adopting a new airworthiness directive (AD) for all Rolls-Royce Corporation (RRC) AE 2100A, AE 2100D2, AE 2100D2A, and AE 2100P model turboprop engines.
This AD was prompted by a report of a propeller gearbox (PGB) development test conducted by the manufacturer, in which high vibration occurred due to a fatigue crack that initiated in the PGB shaft and carrier assembly. This AD requires assignment of usage hours to the PGB shaft and carrier assembly at the next engine shop visit and replacement of PGB shaft and carrier assemblies prior to exceeding the new life limits established by the manufacturer. The FAA is issuing this AD to address the unsafe condition on these products. This AD is effective December 15, 2020.
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 all RRC AE 2100A, AE 2100D2, AE 2100D2A, and AE 2100P model turboprop engines. The NPRM published in the Federal Register on August 11, 2020 (85 FR 48482). The NPRM was prompted by a report of a PGB development test conducted by the manufacturer, in which high vibration occurred due to a fatigue crack that initiated in the PGB shaft and carrier assembly.
In the NPRM, the FAA proposed to require the assignment of usage hours to the PGB shaft and carrier assembly at the next engine shop visit and replacement of PGB shaft and carrier assemblies before exceeding the new life limits established by the manufacturer. The FAA is issuing this AD to address the unsafe condition on these products.
More News
Takeoff Roll The process whereby an aircraft is aligned with the runway centerline and the aircraft is moving with the intent to take off. For helicopters, this pertains to the act>[...]
“We’re proud of the hard work that went into receiving this validation, and it will be a welcome relief to our customers in the European Union. We couldn’t be mor>[...]
"Aircraft Spruce is pleased to announce the acquisition of the parts distribution operations of Wag-Aero. Wag-Aero was founded in the 1960’s by Dick and Bobbie Wagner in the >[...]
IDENT Feature The special feature in the Air Traffic Control Radar Beacon System (ATCRBS) equipment. It is used to immediately distinguish one displayed beacon target from other be>[...]
Aero Linx: Pararescue Air Force Pararescuemen, also known as PJs, are the only DoD elite combat forces specifically organized, trained, equipped, and postured to conduct full spect>[...]