N441V Posted February 6, 2017 Report Share Posted February 6, 2017 Reviewing the Ryan rigging manual, there is a statement to use SPEC X bolts in the stub wing aft spar attachments and NOT standard AN bolts. The parts manual calls for WS-58-XXX bolts in this area. SPEC bolts can be higher or lower strength or close tolerance bolts. I cannot find a reference in any of my Ryan manuals or the aircraft hardware manuals that I have for the specification for these WS-58 bolts. Does anyone have a print or reference for these bolts? I wonder how many Ryan's are flying with standard AN bolts in this location? Might be worth a look to see what you have installed. You can see the upper bolts from inside the aft cockpit with an inspection mirror and a light. Ron Link to comment Share on other sites More sharing options...
terry gardner Posted July 6, 2017 Report Share Posted July 6, 2017 A few yrs ago we found out that the MS bolt is also a close tolerance bolt & may be used. We got the data from Boeing shop ref manual. Link to comment Share on other sites More sharing options...
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