Airworthiness directives › 2013-17-06
AD 2013-17-06 Airworthiness Directives; Fokker Services B.V. Airplanes
Models named: F.27 Mark 050, F.28 Mark 0070, 0100. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to all Fokker Services B.V. Model F.27 Mark 050 airplanes, and Model F.28 Mark 0070 and 0100 airplanes, certificated in any category.
Compliance
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Required actions
Within 24 months after the effective date of this AD, do the actions specified in paragraphs (g)(1), (g)(2), and (g)(3) of this AD. (1) Do a torque check of the nuts and circuit breakers, contactors, and terminal blocks of the EPC and battery relay panel, as applicable; and do all applicable adjustments of the torque values; in accordance with the Accomplishment Instructions of Fokker Service Bulletin SBF50-24-032, dated February 10, 2011 (for Model F.27 Mark 050 airplanes); or the Accomplishment Instructions of Fokker Service Bulletin SBF100-24-043, Revision 1, dated December 15, 2011 (for Model F.28 Mark 0070 and 0100 airplanes). Do all applicable adjustments before further flight. (2) Do a general visual inspection of the contacts and nuts on circuit breakers, contactors, and terminal blocks of the EPC and battery relay panel to determine if either the lock washer, flat washer and nut, or locking nut and flat washer are installed; and do all applicable installations; in accordance with the Accomplishment Instructions of Fokker Service Bulletin SBF50-24-032, dated February 10, 2011 (for Model F.27 Mark 050 airplanes); or the Accomplishment Instructions of Fokker Service Bulletin SBF100-24-043, Revision 1, dated December 15, 2011 (for Model F.28 Mark 0070 and 0100 airplanes). Do all applicable installations before further flight. (3) Before further flight, after accomplishing any check required by paragraph (g)(1) of this AD or any inspection required by paragraph (g)(2) of this AD: Apply torque inspection lacquer, in accordance with the Accomplishment Instructions of Fokker Service Bulletin SBF50-24-032, dated February 10, 2011 (for Model F.27 Mark 050 airplanes); or the Accomplishment Instructions of Fokker Service Bulletin SBF100-24-043, Revision 1, dated December 15, 2011 (for Model F.28 Mark 0070 and 0100 airplanes).
Unsafe condition
This AD was prompted by reports of loose nuts on contactors in the electrical power center (EPC), and in some cases, burned contactors. We are issuing this AD to detect and correct loose nuts, which could result in arcing and potentially an onboard fire, possibly resulting in damage to the airplane and injury to occupants or maintenance personnel.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1