Airworthiness Directive · Amendment 39-17760 · Landing gear
DORNIER LUFTFAHRT GmbH Airplanes
This AD applies to DORNIER LUFTFAHRT GmbH Model 228-212 airplanes, all serial numbers, certificated in any category.
We are adopting a new airworthiness directive (AD) for DORNIER LUFTFAHRT GmbH Model 228-212 airplanes. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as main landing gear axle failure caused by initial fatigue cracking and small pre-damage by corrosion. We are issuing this AD to require actions to address the unsafe condition on these products.
Unless already done, do the actions in paragraphs (f)(1) and (f)(2) of this AD:
(1) Inspect the MLG axle following the Accomplishment Instructions in RUAG Aerospace Services GmbH Dornier 228 Service Bulletin No. SB-228-300, Revision 1, dated April 25, 2013, at the time specified in paragraphs (f)(1)(i) or (f)(1)(ii) of this AD.
(i) If, as of April 1, 2014 (the effective date of this AD), the main landing gear (MLG) has 6,000 or more hours time-in-service (TIS) since new or is 10 years old or is more than 10 years old: Within the next 400 hours TIS after April 1, 2014 (the effective date of this AD) or within the next 6 months after April 1, 2014 (the effective date of this AD), whichever occurs first.
(ii) If, as of April 1, 2014 (the effective date of this AD), the MLG has less than 6,000 hours TIS since new or is between 5 to 10 years old: Before or upon accumulating 6,400 hours TIS or within 6 months after April 1, 2014 (the effective date of this AD), whichever occurs first.
(2) If, during the inspection required in paragraph (f)(1) of this AD, any discrepancies are found outside the limits specified in RUAG Aerospace Services GmbH Dornier 228 Service Bulletin No. SB-228-300, Revision 1, dated April 25, 2013, before further flight, make all necessary corrective actions following the Accomplishment Instructions in RUAG Aerospace Services GmbH Dornier 228 Service Bulletin No. SB-228-300, Revision 1, dated April 25, 2013.
