92-07-06 BRITISH AEROSPACE, REGIONAL AIRCRAFT LIMITED: Amendment 39-8202. Docket No. 91-CE-72-AD. Supersedes AD 83-07-01, Amendment 39-4598.
Applicability: Beagle B121 Pup series 1, 2, and 3 (all serial numbers) airplanes without Modification No. BE.214 incorporated on both mainplanes, certificated in any category.
NOTE 1: Modification No. BE.214 is a replacement of the wing/fuselage joint plate that is equivalent to the requirements of this AD action.
Compliance: Required upon the accumulation of 1,300 hours time-in-service (TIS) or within the next 100 hours TIS after the effective date of this AD, whichever occurs later, unless already accomplished.
NOTE 2: The requirements of this AD may have been accomplished in accordance with superseded AD 83-07-01, Amendment 39-4598.
To prevent failure of each wing spar, which could result in loss of control of the airplane, accomplish the following:
(a) Inspect each wing spar web in the area immediately outboard of the root rib by accomplishing paragraphs 3.2.2 through 3.2.4 of paragraph 3. ACTION in BAe Pup Mandatory Service Bulletin (SB) B121/79, Revision 1, dated February 15, 1991.
(1) If found cracked, prior to further flight, obtain an FAA-approved repair scheme from the manufacturer through the Brussels Aircraft Certification Office at the address specified in paragraph (d) of this AD, and incorporate this repair scheme.
(2) If cracks are not found, prior to further flight, modify each wing spar web by incorporating Repair Scheme BE.03.10169 in accordance with Drawing No. BE.03.10169, and accomplish paragraphs 3.2.6 and 3.2.7 of paragraph 3. ACTION in BAe Pup Mandatory SB B121/79, Revision 1, dated February 15, 1991.
(c) 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.
(d) An alternative method of compliance or adjustment of the compliancetime that provides an equivalent level of safety may be approved by the Manager, Brussels Aircraft Certification Office, FAA, Europe, Africa, and Middle East Office, c/o American Embassy, B-1000 Brussels, Belgium. The request should be forwarded through an appropriate FAA Maintenance Inspector, who may add comments and then send it to the Manager, Brussels Aircraft Certification Office.
(e) The inspection and modification required by this AD shall be done in accordance with British Aerospace Pup Mandatory Service Bulletin (SB) B121/79, Revision 1, dated February 15, 1991. 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 British Aerospace, Regional Aircraft, Ltd., Manager Product Support, Prestwick Airport, Ayrshire, KA9 2RW Scotland. Copies may be inspected at the FAA, Central Region, Office of the Assistant Chief Counsel, Room 1558, 601 E. 12th Street, KansasCity, Missouri, or at the Office of the Federal Register, 1100 L Street, NW, Room 8401, Washington, DC.
(f) This amendment (39-8202) supersedes AD 83-07-01, Amendment 39-4598.
(g) This amendment (39-8202, AD 92-07-06) becomes effective on April 30, 1992.