Airworthiness Directive · Amendment 39-16721 · Fuel
Fokker Services B.V. Model F.28 Mark 0070 and 0100 Airplanes
This AD applies to all Fokker Services B.V. Model F.28 Mark 0070 and 0100 airplanes, certificated in any category.
Note 1: This AD requires revisions to certain operator maintenance documents to include new actions (e.g., inspections) and/or CDCCLs. Compliance with these actions and/or CDCCLs is required by 14 CFR 91.403(c). For airplanes that have been previously modified, altered, or repaired in the areas addressed by this AD, the operator may not be able to accomplish the actions described in the revisions. In this situation, to comply with 14 CFR 91.403(c), the operator must request approval for an alternative method of compliance according to paragraph (l) of this AD. The request should include a description of changes to the required actions that will ensure the continued operational safety of the airplane.
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:
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
At a scheduled opening of the fuel tank, but not later than 84 months after the effective date of this AD, do a general visual inspection of the routing and clamping of the sense line hose and wiring conduit hose to each wing tank overflow valve, in accordance with Part 1 of the Accomplishment Instructions of Fokker Service Bulletin SBF100-28-050, Revision 1, dated July 28, 2010.
(h) If incorrect routing or clamping of the hoses is found during the inspection required by paragraph (g) of this AD, before further flight, install two brackets next to the overflow valve on the main tank access panel, make a modification to the routing of the hose for the sense line, and install clamps to keep the hoses in position, in accordance with Part 2 of the Accomplishment Instructions of Fokker Service Bulletin SBF100-28-050, Revision 1, dated July 28, 2010.
(i) Before further flight after determining that the routing and clamping of the sense line hose and wiring conduit hose to each wing tank overflow valve are correct, as required by paragraph (g) of this AD; or before further flight after doing the modification, as required by paragraph (h) of this AD; as applicable: Revise the aircraft maintenance program by incorporating the CDCCL in paragraph 1.L.(1)(c) of Fokker Service Bulletin SBF100-28-050, Revision 1, dated July 28, 2010.
After accomplishing the revision required by paragraph (i) of this AD, no alternative actions (e.g., inspections), intervals, and/or CDCCLs may be used unless the actions, intervals, and/or CDCCLs are approved as an alternative method of compliance (AMOC) in accordance with the procedures specified in paragraph (l) of this AD.
Actions done before the effective date of this AD in accordance with Fokker Service Bulletin SBF100-28-050, dated June 3, 2010, are acceptable for compliance with the corresponding requirements of this AD.
Note 2: This AD differs from the MCAI and/or service information as follows: Although European Aviation Safety Agency (EASA) Airworthiness Directive 2010-0159, dated August 3, 2010, specifies revising the maintenance program to include limitations, doing certain repetitive actions (e.g., inspections), and/or maintaining CDCCLs, this AD only requires the revision. Requiring a revision of the maintenance program, rather than requiring individual repetitive actions and/or maintaining CDCCLs, requires operators to record AD compliance only at the time the revision is made. Repetitive actions and/or maintaining CDCCLs specified in the airworthiness limitations must be complied with in accordance with 14 CFR 91.403(c).
