Fri, Feb 18, 2022
AD 2022-02-03 Requires Independent Inspection To Verify Re-Installation Of The AGB Handcranking Pad Cover
The FAA is superseding Airworthiness Directive (AD) 2013-26-01 for all CFM International, S.A. (CFM) CFM56-3 and CFM56-7B model turbofan engines with a certain accessory gearbox assembly (AGB) not equipped with a dynamic oil seal assembly in the handcranking pad.
AD 2013-26-01 required an independent inspection to verify re-installation of the handcranking pad cover after removal of the pad cover for maintenance. This AD was prompted by a dual engine loss of oil event and 42 prior events of total loss of engine oil during flight. This AD requires independent inspection to verify re-installation of the AGB handcranking pad cover after maintenance. This AD also requires the replacement of the affected AGB as a terminating action to the inspection requirement. The FAA is issuing this AD to address the unsafe condition on these products. This AD is effective March 22, 2022.
Supplementary Information: The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to supersede AD 2013-26-01, Amendment 39-17710 (78 FR 79295, December 30, 2013), (AD 2013-26-01). AD 2013-26-01 applied to all CFM CFM56-3 and CFM56-7B series turbofan engines with certain AGBs not equipped with a dynamic oil seal in the handcranking pad assembly. The NPRM published in the Federal Register on May 3, 2021 (86 FR 23301). The NPRM was prompted by a dual engine loss of oil event and 42 prior events of total loss of engine oil during flight. In the NPRM, the FAA proposed to retain certain requirements of AD 2013-26-01. The NPRM proposed to require the performance of an independent inspection to verify re-installation of the AGB handcranking pad cover after maintenance. Alternatively, the NPRM proposed to require the insertion of an independent inspection as a required inspection item in the approved continuous airworthiness maintenance program for the aircraft not later than the next
time the AGB handcranking pad cover is removed for maintenance.
The NPRM also proposed to remove the optional terminating action in AD 2013-26-01 and add a mandatory terminating action for certain model turbofan engines, requiring the removal and replacement of an affected AGB with an AGB that incorporates the dynamic oil seal in the handcranking pad cover assembly. For all CFM56-3 and the majority of CFM56-7B turbofan engine models, the NPRM proposed to require replacement of the AGB as a mandatory terminating action to the inspection requirement. The NPRM does not require this terminating action for CFM56-7B27A, CFM56-7B27A/3 and CFM56-7B27AE model turbofan engines because these model engines, which are installed only in military airplanes, do not have a replacement AGB eligible for installation. The FAA is issuing this AD to address the unsafe condition on these products.
More News
How To Get A Story On Aero-TV News/Feature Programming How do I submit a story idea or lead to Aero-TV? If you would like to submit a story idea or lead, please contact Jim Campbel>[...]
Aero Linx: International Association of Professional Gyroplane Training (IAPGT) We are an Association of people who fly, build or regulate Gyroplanes, who have a dream of a single >[...]
NORDO (No Radio) Aircraft that cannot or do not communicate by radio when radio communication is required are referred to as “NORDO.”>[...]
Also: uAvionix AV-Link, F-16 Viper Demo, TN National Guard, 'Staff the Towers' A Saturday afternoon jump run, originating from SkyDive Kansas City, went bad when it was reported th>[...]
Beyond Visual Line Of Sight (BVLOS) The operation of a UAS beyond the visual capability of the flight crew members (i.e., remote pilot in command [RPIC], the person manipulating th>[...]