Airworthiness Directive · Amendment 39-15286 · Powerplant
Fokker Model F27 Mark 050 Airplanes
This AD applies to Fokker Model F27 Mark 050 airplanes, certificated in any category, all serial numbers, unless the engine mount frames have been inspected previously in accordance with the Fokker 50/60 Maintenance Review Board (MRB) Document, Task Numbers 712000-00-09 and 712000-00-10.
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) originated 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:
Unless already done, do the following actions.
(1) Within 24 months after the effective date of this AD, perform an X-ray inspection for corrosion on the engine mount tubing and end fittings, in accordance with the Accomplishment Instructions of Fokker Service Bulletin SBF50-71-047, dated February 15, 2006.
(2) For any engine mount tubing or end fitting found to be outside the corrosion limits specified in Fokker Service Bulletin SBF50-71-047, dated February 15, 2006, during the inspection required by paragraph (f)(1) of this AD, contact the CAA-NL (or its designated agent) for repair instructions and, before further flight, repair or replace the corroded tubing or fitting.
(3) Within 30 days after the accomplishment of the inspection required by paragraph (f)(1) of this AD or within 30 days after the effective date of this AD, whichever occurs later, and in accordance with the procedure described in the Accomplishment Instructions of Fokker Service Bulletin SBF50-71-047, dated February 15, 2006, report all inspection results to the type certificate holder, Fokker Services B.V., Technical Services Dept., P.O. Box 231, 2150 AE Nieuw-Vennep, the Netherlands.
(4) As of 24 months after the effective date of this AD, no spare engine mount may be installed on any aircraft as a replacement part, unless it has been X-ray inspected in accordance with Section 3 of Fokker Component Service Bulletin F8200-035-71-12, dated February 15, 2006, and the engine mount tubing and end fittings have been found to be within the corrosion limits specified in the service bulletin.
Note: This AD differs from the MCAI and/or service information as follows: The MCAI does not specify a corrective action; however, this AD requires contacting the CAA-NL (or its designated agent) for repair instructions, and repair before further flight.
