The plans pages for the horizontal stabilizer attach for RV-4, RV-6/6A, RV-7/7A, and RV-8/8A specify the position of the horizontal stabilizer forward spar attach bolts. Some aircraft have been constructed with these bolt holes significantly displaced from the given location. This has resulted in inquiries that have been dealt with on a case-by-case basis. This service document establishes the acceptable limits for the bolt locations. Revision 2.2 includes clearer inspection instructions, updated figures, and a revised flowchart.
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09/18/2026
Rev 2.2 published
