92-14-05 AEROSPATIALE: Amendment 39-8287. Docket No. 92-NM-05-AD. Supersedes AD 85-12-04, Amendment 39-5076.
Applicability: Model Nord 262A airplanes, certificated in any category.
Compliance: Required as indicated, unless accomplished previously.
To prevent corrosion of the rudder hinge support assembly, that could lead to loss of rudder control, accomplish the following:
(a) Within 100 hours time-in-service or three months, whichever occurs first after July 5, 1985 (the effective date of AD 85-12-04, Amendment 39-5076), inspect and protect against corrosion, or replace components if necessary, in accordance with paragraph II, Accomplishment Instructions, of Aerospatiale N262 Fregate Service Bulletin No. 55-10, Revision 2, dated January 31, 1984. Repeat the inspection at intervals not to exceed 6 years.
(b) Within 6 years after the most recent inspection performed in accordance with paragraph (a) of this AD, perform a visual and X-ray inspection of therudder hinge support assembly for corrosion and apply corrosion protection treatments, in accordance with Aerospatiale 262-Fregate Service Bulletin No. 55-10, Revision 3, dated May 25, 1991. Compliance with this paragraph constitutes terminating action for the inspection requirements of paragraph (a) of this AD.
(c) As a result of the visual inspection required by paragraph (b) of this AD, accomplish either paragraph (c)(1) or (c)(2) of this AD, as applicable:
(1) If no corrosion is detected, repeat the visual inspection at intervals not to exceed 6 years.
(2) If corrosion is detected, accomplish either paragraph (c)(2)(i) or (c)(2)(ii) of this AD, as applicable:
(i) If internal corrosion is penetrating tube walls, or if deformation or buckling is evidenced, or if external corrosion is outside the tolerance limits specified in Aerospatiale 262-Fregate Service Bulletin No. 55-10, Revision 3, dated May 25, 1991: Prior to further flight, replace corroded components in accordance with Aerospatiale 262-Fregate Service Bulletin No. 55-11, Revision 2, dated May 25, 1991. Thereafter, at intervals not to exceed 6 years, repeat the visual inspection of tubes not replaced, as well as tubes replaced as a result of accomplishing Modification 861 described in the Service Bulletin 55-11, Revision 2, dated May 25, 1991.
(ii) If internal corrosion is not penetrating tube walls, or if external corrosion is within the tolerance limits specified in Aerospatiale 262-Fregate Service Bulletin No. 55-10, Revision 3, dated May 25, 1991: Prior to further flight, apply external protective treatment in accordance with that Aerospatiale service bulletin. Thereafter, repeat the visual inspection at intervals not to exceed 6 years.
(d) As a result of the X-ray inspection required by paragraph (b) of this AD, accomplish either paragraph (d)(1) or (d)(2) of this AD, as applicable:
(1) If no corrosion or buckling is detected: Prior to further flight apply internal protective treatment, in accordance with Aerospatiale 262-Fregate Service Bulletin No. 55-10, Revision 3, dated May 25, 1991.
(2) If any corrosion is detected, accomplish either paragraph (d)(2)(i) or (d)(2)(ii) of this AD, as applicable:
(i) If corrosion is detected on both tubes of the upper support tube section, or on the lower support tube section, or on the support tube assembly: Prior to further flight, replace corroded components in accordance with Aerospatiale 262-Fregate Service Bulletin No. 55-10, Revision 3, dated May 25, 1991.
(ii) If corrosion is detected on only one tube of the upper or lower support tube sections: Within 3 months or 600 landings of the discovery of corrosion, whichever occurs first, replace corroded components in accordance with Aerospatiale 262-Fregate Service Bulletin No. 55-10, Revision 3, dated May 25, 1991.
(e) Accomplishment of Modification 866, in accordance with Aerospatiale 262-Fregate Service Bulletin No. 55-11, Revision 2, dated May 25, 1991, constitutes terminating action for the inspections required by this AD for the component replaced.
(f) An alternative method of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate. The request shall be forwarded through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, Standardization Branch.
NOTE: Information concerning the existence of approved alternative methods of compliance with this airworthiness directive, if any, may be obtained from the Standardization Branch.
(g) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the airplane to a location where the requirements of this AD can be accomplished.
(h) The inspections, corrosion protection treatments, and replacement shall be donein accordance with Aerospatiale N262 Fregate Service Bulletin No. 55-10, Revision 3, dated May 25, 1991; or Aerospatiale N262 Fregate Service Bulletin No. 55-10, Revision 2, dated January 31, 1984, which contains the following list of effective pages:
Page Number
Revision Level
Date
1, 10-12
2
January 31, 1984
2-9, 13-18
1
December 29, 1981
The modification shall be done in accordance with Aerospatiale 262-Fregate Service Bulletin No. 55-11, Revision 2, dated May 25, 1991, which contains the following list of effective pages:
Page Number
Revision Level
Date
1-6
2
May 25, 1991
7-13
Original
December 29, 1981
This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies may be obtained from Aerospatiale, 316 Route de Bayonne, 31060 Toulouse, Cedex 03, France. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, Washington; or at the Office of the Federal Register, 800 North Capitol Street NW., 7th Floor, Suite 700, Washington, DC.
(i) This amendment becomes effective on September 8, 1992.