What was found
REPAIR DOUBLER AT LOWER END OF FRAME 19 CRACKED (LH SIDE). REPLACED DOUBLER SEE 337 DATED 3/18/2026. CRACK FOUND AT DOUBLER FOR L/H FRAME 19. R&R WITH 2 DOUBLERS (ONE FWD AND ONE AFT OF FRAME) WITH .032IN 2024 T-3 ALUMINUM IRW CASA 212 SRM SECTION IV FIG 4.28 PAGES OA-02 AND CASA 212 SRM APPENDIX II REPAIRS B14 (PAGES 26-27), B15 (PAGES 28-29) AND B22 (PAGES 44-45). INSTALLED WITH AN470AD4 RIVETS IRW AC-43.13-1 B SECTION 4-57 PAGES 4-14 TO 4-17, USED PRE-EXISTING REPAIR'S RIVET SPACING & SIZE. DOUBLERS WERE ALODINED, PRIMED. CONTINUED AIRWORTHINESS WILL BE MAINTAINED IN ACCORDANCE WITH CURRENT INSPECTION PROGRAM OR A/C MANUFACTURERS INSPECTION PROGRAM. W&B CHANGE WAS CONSIDERED NEGLIGIBLE.