Airworthiness Directive · Amendment 39-17087 · Fuselage
Fokker Services B.V. Airplanes
This AD applies to Fokker Services B.V. Model F.28 Mark 0070 and 0100 airplanes, as identified in Fokker Service Bulletin SBF100-53-115, dated June 16, 2011.
We are adopting a new airworthiness directive (AD) for certain Fokker Services B.V. Model F.28 Mark 0070 and 0100 airplanes. This AD was prompted by reports of cracks underneath the passenger door in a butt-joint on the forward fuselage of a Model F.28 Mark 0100 airplane. This AD requires repetitive low frequency eddy current inspections of the forward fuselage butt-joints for cracks, and if necessary, a temporary repair followed by a permanent repair. We are issuing this AD to detect and correct cracking of the butt-joint on the forward fuselage, which could result in explosive decompression and consequent loss of control of the airplane.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Before the accumulation of 20,000 total flight cycles, or within 180 flight cycles after the effective date of this AD, whichever occurs later, do a low frequency eddy current inspection of the forward fuselage butt-joints for cracks, in accordance with the Accomplishment Instructions of Fokker Service Bulletin SBF100-53-115, dated June 16, 2011. Repeat the inspection thereafter at intervals not to exceed 1,000 flight cycles. Doing the temporary repair in paragraph (h) of this AD is terminating action for the repetitive inspections required by this paragraph. The temporary repair can also be accomplished if no cracking is found.
If any cracking is found during any inspection required by paragraph (g) of this AD, before further flight, do a temporary repair, in accordance with the Accomplishment Instructions of Fokker Service Bulletin SBF100-53-115, dated June 16, 2011. Doing the temporary repair is terminating action for the repetitive inspections required by paragraph (g) of this AD.
Within 10,000 flight cycles after installing the temporary repair, as required by paragraph (h) of this AD, install a permanent repair using a method approved by the Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA.
Submit a report of the findings (both positive and negative), to Fokker Services B.V., Technical Services Dept., P.O. Box 231, 2150 AE Nieuw-Vennep, the Netherlands, using the reports form of Fokker Service Bulletin SBF100-53-115, dated June 16, 2011, of the inspection required by paragraph (g) of this AD, at the applicable time specified in paragraph (j)(1) or (j)(2) of this AD.
(1) If the inspection was done on or after the effective date of this AD: Submit the report within 30 days after the inspection.
(2) If the inspection was done before the effective date of this AD: Submit the report within 30 days after the effective date of this AD.
