| 737-3257-5 | Splice Plate-Machined, WSTA 583 | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3257-5, 737-3257-6 | Splice Plate, Lower | Seattle Aero LLC | | 53 | Structural / Airframe | PMA |
| 737-3257-6 | Splice Plate-Machined, WSTA 583 | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3258-1 | Fitting-Stringer End, WSTA 583 | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3258-1, 737-3258-2, 737-3258-7, 737-3258-8, 737-3258-9, 737-3258-10 | End Fitting | Seattle Aero LLC | | 57 | Structure | PMA |
| 737-3258-10 | Fitting-Stringer End, WSTA 583 | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3258-2 | Fitting-Stringer End, WSTA 583 | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3258-7 | Fitting-Stringer End, WSTA 583 | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3258-8 | Fitting-Stringer End, WSTA 583 | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3258-9 | Fitting-Stringer End, WSTA 583 | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3259-1 | Splice Plates-WSTA 583 | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3259-1, 737-3259-2 | Splice Plate | Seattle Aero LLC | | 57 | Structure | PMA |
| 737-3259-2 | Splice Plates-WSTA 583 | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3259-3 | Splice Plates-WSTA 583 | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3259-5 | Splice Plates-WSTA 583 | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3259-5, 737-3259-7 | Spacer, Lower | Seattle Aero LLC | | 57 | Structure | PMA |
| 737-3259-7 | Splice Plates-WSTA 583 | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3261-1 | Rib - Trailing Edge, WSTA 523.5 | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3261-1, 737-3261-2 | Rib Trailing Edge | Seattle Aero LLC | | 57 | Structure | PMA |
| 737-3261-2 | Rib - Trailing Edge, WSTA 523.5 | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3262-1 | Splice Strap - Trailing Edge Rib, WSTA 523.5 | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3262-1, 737-3262-2 | Splice Strap - Upper | Seattle Aero LLC | | 53 | Structural / Airframe | PMA |
| 737-3262-2 | Splice Strap - Trailing Edge Rib, WSTA 523.5 | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3262-3 | Splice Strap - Trailing Edge Rib, WSTA 523.5 | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3262-3, 737-3262-4 | Splice Strap - Lower | Seattle Aero LLC | | 53 | Structural / Airframe | PMA |
| 737-3262-4 | Splice Strap - Trailing Edge Rib, WSTA 523.5 | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3262-5 | Splice Strap - Trailing Edge Rib, WSTA 523.5 | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3262-5, 737-3262-6 | Gusset | Seattle Aero LLC | | 57 | Structure | PMA |
| 737-3262-6 | Splice Strap - Trailing Edge Rib, WSTA 523.5 | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3263-1 | Rib Post- Trailing Edge Rib, WSTA 523.5 | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3263-1, 737-3263-2 | Rib Post | Seattle Aero LLC | | 53 | Structural / Airframe | PMA |
| 737-3263-2 | Rib Post- Trailing Edge Rib, WSTA 523.5 | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3271-1 | Bond Assy - Upper Trailing Edge | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3271-1, 737-3271-2 | Panel Assy Upper Trailing Edge | Seattle Aero LLC | | 25 | Interior / Furnishings | PMA |
| 737-3271-2 | Bond Assy - Upper Trailing Edge | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3271-21 | Bond Assy - Upper Trailing Edge | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3271-21, 737-3271-22 | Bond Assy-Upper Trailing Edge | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3271-22 | Bond Assy - Upper Trailing Edge | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3272-1 | Arrowhead-Trailing Edge | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3276-1 | Bond Assy - Lower Trailing Edge | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3276-1, 737-3276-2 | Skin Lower Trailing Edge | Seattle Aero LLC | | 57 | Structure | PMA |
| 737-3276-2 | Bond Assy - Lower Trailing Edge | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3281-1 | Bond Assy - Upper Leading Edge | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3281-1, 737-3281-2 | Bond Assy Upper Leading Edge | Seattle Aero LLC | | 53 | Structural / Airframe | PMA |
| 737-3281-2 | Bond Assy - Upper Leading Edge | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3282-1 | Bond Assy - Lower Leading Edge | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3282-1, 737-3282-2 | Bond Assy Lower Leading Edge | Seattle Aero LLC | | 57 | Structure | PMA |
| 737-3282-2 | Bond Assy - Lower Leading Edge | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3284-1 | Skin-Upper and Lower, Leading Edge | Seattle Aero LLC | | 57 | Structural / Airframe | PMA |
| 737-3284-1, 737-3284-2 | Upper Panel | Seattle Aero LLC | | 25 | Interior / Furnishings | PMA |