Airworthiness Directive · Amendment 39-16005 · Fokker Model F.28 Mark 0070 and 0100 Airplanes
Fokker Model F.28 Mark 0070 and 0100 Airplanes
This AD applies to airplanes, certificated in any category, as identified in paragraphs (c)(1) and (c)(2) of this AD.
(1) Fokker Model F.28 Mark 0100 airplanes, all serial numbers.
(2) Fokker Model F.28 Mark 0070 airplanes, serial numbers 11521, 11528 through 11537 inclusive, 11545, 11547, 11553, 11557, 11561, 11562, 11566, 11567, 11571, 11572, 11576 through 11579 inclusive, and 11581 through 11583 inclusive. All airplanes with these serial numbers are fitted with center wing fuel tanks.
We are superseding an existing 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, within 18 months after October 27, 1999 (the effective date of AD 99-20-01), modify the electrical wiring of the FWC in accordance with Part 1 or 2, as applicable, of the Accomplishment Instructions of Fokker Service Bulletin SBF100-31-047, Revision 1, dated March 21, 1997.
Note 1: It is not necessary to install computer software version V10.40 into the FWC, since a later version is available and is required to be installed by AD 99-20-01.
(g) Unless already done, concurrently with the accomplishment of the requirements of paragraph (f) of this AD, install upgraded computer software version V11.45 into the FWC in accordance with Fokker Service Bulletin SBF100-31-051, dated August 15, 1998.
Note 2: AlliedSignal Grimes Aerospace has issued Service Bulletin 80-0610-31-0031, dated May 14, 1998, as an additional source of guidance for installation of the upgraded computer software version into the FWC.
Note 3: Operators should note that Fokker Service Bulletin SBF100-31-051, dated August 15, 1998, specifies prior or concurrent accomplishment of Fokker Service Bulletin SBF100-78-014 (which specifies concurrent accomplishment of Fokker Component Service Bulletin (CSB) P41440-78-04, and prior or concurrent accomplishment of Fokker Service Bulletin SBF100-78-012 and CSB P41440-78-05). Related FAA AD 99-20-02, amendment 39-11330, requires accomplishment of these four other service bulletins.
Unless already done, do the following actions.
(1) Within 36 months after the effective date of this AD, replace FWC units having part number (P/N) 80-0610-3-45 and P/N 80-0610-3-50 with modified units having P/N 80-0610-3-55, in accordance with the Accomplishment Instructions of Fokker Service Bulletin SBF100-31-067, Revision 1, dated April 24, 2008.
(2) Within 36 months after the effective date of this AD and concurrently with the accomplishment of paragraph (h)(1) of this AD, revise the Emergency and Abnormal Procedures sections of the airplane flight manual (AFM), as specified in Fokker Manual Change Notification-Operational Documentation MCNO-F100-050, dated January 31, 2008, which is included in Fokker Service Bulletin SBF100-31-067, Revision 1, dated April 24, 2008. These AFM sections provide alterations, which are introduced in Fokker Service Bulletin SBF100-31-067, Revision 1, dated April 24, 2008.
Note 4: Revisions to the Emergency Procedures and Abnormal Procedures sections of the AFM, as specified in Fokker MCNO-F100-050, dated January 31, 2008, may be done by inserting copies of Fokker MCNO-F100-050, dated January 31, 2008, into the AFM. When the information in Fokker MCNO-F100-050, dated January 31, 2008, has been included in general revisions of the AFM, the general revisions may be inserted in the AFM, provided the relevant information in the general revisions are identical to that in Fokker MCNO-F100-050, dated January 31, 2008.
(3) After accomplishing paragraph (h)(1) of this AD, no person may install an FWC having P/N 80-0610-3-45 or P/N 80-0610-3-50, unless it has been modified to P/N 80-0610-3-55 standard in accordance with Honeywell Service Bulletin 80-0610-31-0003, dated February 13, 2008.
(4) Within 36 months after the effective date of this AD, install software version V12 for the MFDU in accordance with the Accomplishment Instructions of Fokker Service Bulletin SBF100-31-060, dated June 1, 2002.
(5) Within 36 months after the effective date of this AD, modify the thrust reverser indication and control system in accordance with the Accomplishment Instructions of Fokker Service Bulletin SBF100-78-016, dated October 1, 1999; or modify the thrust reverser unlock indication relay in accordance with the Accomplishment Instructions of Fokker Service Bulletin SBF100-78-017, dated December 1, 1999.
Note 5: This AD differs from the MCAI and/or service information as follows: (1) Replacing the MFDU in accordance with Fokker Service Bulletin SBF100-31-060, dated June 1, 2002, is not included in the MCAI; however, this AD includes that action. It is necessary to install a new version of the MFDU software before installing the new version of the FWC software. (2) Modifying the thrust reverser indication and control system in accordance with Fokker Service Bulletin SBF100-78-016, dated October 1, 1999; or modifying the thrust reverser unlock indication relay in accordance with Fokker Service Bulletin SBF100-78-017, dated December 1, 1999, is not included in the MCAI; however, this AD includes those actions. It is necessary to do one of those actions before installing the MFDU software.
