## EASA EASA AD No. 20HI-Q139 

## AIRWORTHINESS DIRECTIVE
AD No. 2010-0139



### Date:

# 01July 2010
NOle: This Airworthir.ess Directive (AD) is Issued by EASA, aCling in accordance with Regulation ECl N~ 21612~ on behalf ~f.the European C<:,mmunily, Its Member States and of the European third countries that parliClpale In the act,v.~es of EASA under Article 66 of lhat Regul'fion, Thl$ AD is issued in accon:Iance with EC 170mOO3, Part 21A.3B. In a<:cordance with EC 204212O'J3 Anne~ l. Pall MA301, t."e COlltinuing afrworminess of an alrctall shall be ensured by accomplishing ~ applicable ADs. Cansequen"v. no person may operate an aircr-aft to whicl1 an AD applies. except in a~ with the requiJemeflts QIthaI AD, Ul'l1ezso!herwlse specified by the AgencylEe 204212003 Annex l. PM M,A.303] or agreedwil\1the Authority of !he SlateQl Regislty IEC 21612003, Artiele l<l(<lJexemptionJ. 

### Type Approval Holder's Name: Fokker Services B.V. TypefModel designation(s) : F28aeroplanes
TeDS Number: Foreign AD : Supersedure'



### ATA28

Manufacturer(s):
Applicability:

Reason:

Effective Date:

EASA Form 110 EASA.A.037
Nol applicable
None 

### I

## I Fuel- FuJlling Control Panel eam -Inspection J Replacement Functional Check {Fuel Tank Safety]

Fokker AirC(aft B.V. and predecessor companies.



# , F28 Marks 1000, 1000c, 2000, 3000, 3OODC,3OO0R,3000RC and 4000 aeroPlanes'lall serial numbers. ifequipped with aCentre Wing Tank (CWT), and F28 Mark 0100 aeroplanes, serial numbers 11244 through 11441. Prompted b~an accident ofa Boelng 747-131 (flight TWA800), the FAA published Special Federal Aviation Regulation (SFAR) 88, and the Joint Aviation AU~horities(JAA) pUblished Interim Policy INTfPOU25/12. The design reviiw conducted by Fokker on the F28 in response tothese regulations revealed that, in case ofa lightning strike, an ignition source can develop inthe wing tank vapour space during fuel transfer from bag lank CWT, ifthe blectrical power for refuelling is not switched off after refuelling. Service ex~rience has revealed situations where the power switch ofthe Fuelling Control Panel (FCP) appeared' to be ·ON" with the access panel closed. The eam on the access panel that should operate the power switch. ifforgotten byflight crew or maintenance staff, can pivot away during closing ofthe panel, which may result in the switch staying in the "ON" position. This condition, if notcorrected. could result in awing fuel tank explosion and consequent loss Ofthe aeroplane. For the reasbns described above, this AD requires an inspection ofIhe earn and, depending on findings. replacement with an improved part. Subsequently, this AD requires repetilive functional checks ofthe carn and, depending 9n findings, the necessary corrective actions.
15July 201p

Page 113EASA AD No' 2010-0139 Required as indicated, unless accomplished previously_ (1) INithin 6 months afterthe effective date of1his AD, inspect the FCP earn, identi~ the Part Number (PIN) and, ifthe correct PIN is installed, perform afunctional check toverify that itoperates correctly, in accord~nce with the instructions of Part 1 of Fokker Services Service Bulleti~ SBF28-28-052 orSBF100-28-063, as applicable tothe aeroplane model. (2) Ifthe I~spection as required by paragraph (1) ofthis AD reveals that an Incorrept 

### PIN carn Isinstalled, wilhin 24 months after the effective date ofthis ~D, replace the incorrect PIN earnwith acorrect PIN earn and perfoon afunctional check 10verify that itoperates correctly, in accord~nce with the Instructions of Part 2 of Fokker Services SBF28-28- 052 OfSBF1OQ-28-063, as applicable tothe aeroplane model. (3) Ifduring any functional check as required by paragraphs (1) and (2) of thisAD, the cam does notoperate correctly. before next night, adjust the earn until itoperates correctly, in accordance with Part 2ofthe Accomplishment Instructions of Fokker Services SBF28-28-052 or SBF100-28-063, as applicable tothe aeroplane model. (4) VVilhin ~200 flight hours (FH) after verification that the earn operates correc~y, as required by paragraphs (1), (2) and (3) ofthis AD, as Required Action(s) appiicaFle, and thereafter at intervals not to exceed 1 200 FH, perform and Compliance afuncitonal check toverify that the earn operates correctly and, Tlme(s): depen~ing on findings, before nexi night, take appropriate corrective actions, in accordance with the instructions for the Fuel All in paragraph 1.L,(1)(c) of Fokker Services SBF28-28-052 orSBF1 00·28-063, as applicable 10the aeroplane model, Corrective aclion does no! constitute termin~ting action for ihe repetitive checks as required by paragraph (4) ofthis AD. (5) From the effective dale of this AD. do not instal! an FCP access door, earn or Fuelling Panel on any aeroplane, unless in compliance with the requirements ofthisAD. (6) ComPli1nce with the requirements of paragraphs (4) and (5) ofthis AD can bedemonstrated by: (6.1) Revising as follows the approved aircraft maintenance programme 

### fO~hi'h the000""0' 0'<heOwoe,e"",,, theooo';ou;og OIl orthiness ofeach operated aeroplane: In orporate the Fuel All's and CDCCL's in accordance with lhe informalion inparagraph 1.L.(1 )(c) of Fokker Services SBF28-28- 052 or SBF100-28-063, as applicable to the aeroplane model. 

### I 

### "d (6.2) CbmPIYingwtlh the approved aircraft maintenance programme described in paragraph (6.1) ofthis AD. Fokker Services SBF28-28-052 dated 20 April 2010. Fokt;er Services SBF1OQ-28-063 dated 15April 2010. Ref. Publications: The use of later approved revisions ofthese documents is acceptable for compliance with the requirements of Ihls AD.
1. Ifreque~ted and appropriately substantiated, EASA can approve
2. Alterna~ve Methods ofCompliance for this AD. This A~was posted on 31 May 2010 as PAD 10-055 and republished on Remarks: 09 Jun 2010 as PAD 10--055R1,for consultation until 28 June 2010. No

3. comme

# lISwere received during the consultation period. Enquiries regarding this AD should be referred to the Airworthiness Directiv~s, Safety Manaoement & Research Section, Certification
EASAForml10 Page 213EASAAD NQ: 2010-0139



# r~--------r--iSo.;,;;eCclkof"';;I;;e~. EEAAsS:;A~. EE;;-mm,,;;HIA~o~s~@~e''';:';:.'e;;";;<o;;p",Ce;;";:·~------~l 4. ForanJ question concerning the technical aspects ofthe requirements in this ADI please contact: FokkerlServices BV, Technical Services Dept., P,D.Bo.\(231, 2150 A~ Nieuw-Vennep, The Netherlands; telephore (31) 252.-627-350: facsimile (31) 252-627-211: e-mall: tectmicalservices, fokkerservices@fokker.com The referenced publication can bedownloaded from www.myfokkerfleel.com



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