13 Sep 2023
Rear fuselage lower skin and removing right wingtip
Riveted lower longerons in place on rear fuselage bottom skin. Discovered the left outer longeron was not supplied, I was sent two right ones instead of one left and one right. Very frustrating after having prepared the longeron fully - it must have been mislabelled at the factory.
Removed the right wingtip. There is an issue with the alignment of the flaps, ailerons and wingtip which needs to be resolved. Rib 14's trailing edge is not aligning fore and aft from the rear spar backwards. A bit of fluting was tried, which got the alignment correct but the vertical alignment is not right at the trailing edge. Contacted Sling technical support for help.