Airworthiness Directive · Amendment 39-22925 · Landing gear system
Britten-Norman Aerospace Ltd. Airplanes
This AD applies to Britten-Norman Aerospace Ltd. airplanes, certificated in any category, fitted with Fairey Hydraulics Ltd or Britten-Norman Aircraft landing gear and associated landing gear components, identified in paragraphs (c)(1) and (2) of this AD.
(1) Model BN-2, BN-2A, BN-2A-2, BN-2A-3, BN-2A-6, BN-2A-8, BN-2A-9, BN-2A-20, BN-2A-21, BN-2A-26, BN-2A-27, BN-2B-20, BN-2B-21, BN-2B-26, BN-2B-27, BN-2T, BN2T-4R, and BN2T-4S airplanes.
(2) Model BN2A MK. III, BN2A MK. III-2, and BN2A MK. III-3 airplanes.
The FAA is adopting a new airworthiness directive (AD) for certain Britten-Norman Aerospace Ltd. Model BN-2, BN-2A, BN-2A-2, BN- 2A-3, BN-2A-6, BN-2A-8, BN-2A-9, BN-2A-20, BN-2A-21, BN-2A-26, BN-2A- 27, BN-2B-20, BN-2B-21, BN-2B-26, BN-2B-27, BN-2T, BN2T-4R, and BN2T-4S airplanes; and certain Model BN2A MK. III, BN2A MK. III-2, and BN2A MK. III-3 airplanes. This AD was prompted by the determination that, in order to ensure the continued structural integrity of certain landing gear and associated components, it is necessary to require removal of these components from service prior to exceeding established fatigue lives. This AD requires determining the number of landings on affected main landing gears (MLGs), nose landing gears (NLGs), and associated components; removing from service any part that has reached or exceeded the established fatigue life and installing a replacement part; and prohibiting the installation of any affected part unless the number of landings for that part is below the established fatigue life. The FAA is issuing this AD to address the unsafe condition on these products.
For the purpose of this AD:
(1) An “affected part” is a main landing gear (MLG), nose landing gear (NLG), or component identified in Table 1, 2, or 3 of Section 6 in Britten-Norman SB 298, Issue 3, dated July 7, 2023 (Britten-Norman SB 298, Issue 3).
(2) A “part eligible for installation” is an MLG, NLG, or component with a part that has been established to be below the associated fatigue life identified in Table 1, 2, or 3 of Section 6 in Britten-Norman SB 298, Issue 3.
(1) Within 30 days after the effective date of this AD, determine the number of landings accumulated on the affected parts. For an unknown number of landings, calculate the number based on 3 landings per 1 hour time-in-service.
(2) Before accumulating the number of landings (fatigue life) associated with the applicable affected part as identified in Table 1, 2, or 3 of Section 6 in Britten-Norman SB 298, Issue 3, or within the next 30 days after the effective date of this AD, whichever occurs later, replace any affected part with a part eligible for installation.
(3) Thereafter, replace any affected part with a part eligible for installation before accumulating the fatigue life, as identified in Table 1, 2, or 3 of Section 6 in Britten-Norman SB 298, Issue 3.
As of the effective date of this AD, do not install a MLG, NLG, or associated component unless it is a part eligible for installation.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
