56-15-04 de HAVILLAND: Applies to All Model 104 "Dove" Aircraft.
Compliance required as indicated.
Cases have been reported of cracks appearing in the brackets P/N 4FS.401 and 4FS.402 which form part of the main attachment structure of the nose undercarriage leg. The de Havilland Service strongly recommended that these brackets be inspected for cracks.
The FAA concurs and considers compliance with de Havilland Service Technical News Sheet CT (104) No. 124, Issue 2, dated December 20, 1955, mandatory. Unless already accomplished, the recommendations in the TNS should be carried out at the earliest opportunity but not later than August 15, 1956.