Airworthiness Directive · Amendment 39-14968 · Fokker Model F.28 Mark 0070 and 0100 Airplanes
Fokker Model F.28 Mark 0070 and 0100 Airplanes
This AD applies to all Fokker Model F.28 Mark 0070 and 0100 airplanes, certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for all Fokker Model F.28 Mark 0070 and 0100 airplanes. This AD requires inspecting the carbon-fiber reinforced plastic main landing gear (MLG) door to determine whether certain part numbers are installed. For airplanes having certain doors, this AD requires inspecting the MLG outboard door for cracks, play, and loose sealant/bolts/nuts, and related investigative and corrective actions if necessary. This AD also requires, for airplanes having certain doors, modifying the rod bracket attachment of the MLG outboard door. This AD results from a report of a rod bracket of the MLG door detaching during flight. We are issuing this AD to detect and correct cracks in the rod bracket attachment bolts, which could result in the rod brackets detaching from the MLG door and blocking the proper functioning of the MLG.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Within 9 months after the effective date of this AD, inspect the carbon-fiber reinforced plastic (CFRP) MLG doors to determine if any MLG door having a part number (P/N) D13312-401 through -410 inclusive is installed. A review of airplane maintenance records is acceptable in lieu of this inspection if the part number of the CFRP MLG doors can be conclusively determined from that review. If the CFRP MLG doors have any part number other than P/N D13312-401 through -410 inclusive installed, no further action is required by this AD.
(g) If any CFRP MLG door having any P/N D13312-401 through -410 inclusive is found during the inspection required by paragraph (f) of this AD: Within 9 months after the effective date of this AD, do a detailed inspection of the MLG outboard door for cracks, play, and loose sealant/bolts/nuts as specified in Part 1 of the Accomplishment Instructions of Fokker Service Bulletin SBF100-52-080, dated December 12, 2005, including Fokker Manual Change Notification—Maintenance Documentation MCNM-F100-103, dated November 15, 2005, and do all applicable related investigative and corrective actions, by doing all the applicable actions specified in Part 1 of the Accomplishment Instructions of the service bulletin, except as provided by paragraphs (i), (j), and (k) of this AD. Do all applicable related investigative and corrective actions before further flight.
Note 1: For the purposes of this AD, a detailed inspection is: “An intensive examination of a specific item, installation, or assembly to detect damage, failure, or irregularity. Available lighting is normally supplemented with a direct source of good lighting at an intensity deemed appropriate. Inspection aids such as mirror, magnifying lenses, etc., may be necessary. Surface cleaning and elaborate procedures may be required.”
If any CFRP MLG door having any P/N D13312-401 through -410 inclusive is found during the inspection required by paragraph (f) of this AD: Within 12 months after the effective date of this AD, modify the MLG outboard door operating rod bracket attachment and do all applicable related investigative and corrective actions by doing all the applicable actions specified in Part 2 of the Accomplishment Instructions of Fokker Service Bulletin SBF100-52-080, dated December 12, 2005, including Fokker Manual Change Notification—Maintenance Documentation MCNM-F100-103, dated November 15, 2005, except as provided by paragraph (i) of this AD. Do all applicable related investigative and corrective actions before further flight.
(i) Where Fokker Service Bulletin SBF100-52-080, dated December 12, 2005, including Fokker Manual Change Notification—Maintenance Documentation MCNM-F100-103, dated November 15, 2005, specifies to contact the manufacturer for repair, before further flight, repair using a method approved by either the Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA; or the European Aviation Safety Agency (EASA) (or its delegated agent).
(j) If any loose sealant or any delamination is found during any inspection required by paragraph (g) of this AD, before further flight, do the corrective action specified in paragraph C.(3) of Part 1 of the Accomplishment Instructions of Fokker Service Bulletin SBF100-52-080, dated December 12, 2005, including Fokker Manual Change Notification—Maintenance Documentation MCNM-F100-103, dated November 15, 2005.
(k) Although the service bulletin referenced in this AD specifies to submit certain information to the manufacturer, this AD does not include that requirement.
