47-50-09 FAIRCHILD: Applies to 24R and 24W Series Aircraft.
Inspection required each 100 hours of operation.
Inspect the landing gear fittings near the lower longeron attachment and also the fuselage fittings for cracks. Cracks in the strut not exceeding 1/8 inch in length may be repaired by electric arc welding. Cracks in excess of 1/8 inch in length should be stop drilled and oxyacetylene welded, and the landing gear strut should be re-heat-treated to 180,000 pounds per square inch.
(Fairchild Service Bulletin No. 41-8 dated June 23, 1941, covers this subject.)