Aircraft Sheet Metal, Riveting & Fastener Fundamentals
Explore the named components, make a prediction, then connect the supplied result to the system. This workshop adds coached practice alongside the course handbook and assessed lab.
SM-101 sheet metal: inspect the training joint
Follow a fictional training coupon from released drawing through layout, hole preparation and exact fastener selection. Reveal evidence only after predicting what should matter. This optional practice preserves the existing course lab and assessment requirements.
Workshop dependencies: workflow arrows connect requirements and evidence; they do not authorize a physical repair or replace the released operation plan.
Green outlines identify components named in the selected exercise record; they do not indicate a healthy component.
Named connections and what each arrow means
- Released drawing, BOM and notes → Datums, hole centers and edge distancesTask sequence: Released location and margins
- Datums, hole centers and edge distances → #30 drill and finished rivet holeTask sequence: Hole-center plan
- #30 drill and finished rivet hole → Clamped sheet stack and mating surfacesTask sequence: Inspect and clean
- Clamped sheet stack and mating surfaces → MS20470AD4-5 rivets and installed jointTask sequence: Measured assembly stack
- Released drawing, BOM and notes → MS20470AD4-5 rivets and installed jointTask sequence: Exact hardware requirement
- Released drawing, BOM and notes → Formed geometry and process cardTask sequence: Geometry and process inputs
Released drawing, BOM and notes
The released drawing identifies units, revision, material, geometry and acceptance requirements. A bill of materials (BOM) connects each item balloon to a complete part identity and quantity.
How it works with the rest
For this fictional kit, Rev C controls. Item 3 calls for six MS20470AD4-5 solid rivets. The item number 3 is a lookup key, not the diameter or a complete rivet part number.
What the evidence must show
Read specific notes with the views and title block. Note 4 states a .3125-inch minimum center-to-finished-edge distance; a general location tolerance cannot reduce that stated minimum.
Selected: Released drawing, BOM and notes
Follow the change through the system.
Fictional SM-101 Rev C coupon: width 3.000 inches; Note 4 requires at least .3125 inch from every hole center to the nearest finished edge. A proposed right-hand center is moved from X=2.625 to X=2.720. The exercise isolates right-edge margin; other requirements are not declared passed.
Before the recorded change
Move the right-hand center from X=2.625 to X=2.720 on a 3.000-inch-wide coupon. Predict the right-edge margin change.
Next observation
Choose your prediction before revealing the supplied result.
Reference: FAA-H-8083-30B pp.4-9, 4-19; FAA-H-8083-31B pp.4-33–4-34. Original SM-101 Rev C Note 4.
Course applicability and study references
General sheet-metal foundations from FAA-H-8083-30B Chapter 4 and FAA-H-8083-31B Chapter 4, with the original WWAOG-SM-101 Rev C training coupon. All coupon dimensions and acceptance ranges are fictional exercise requirements. They are not aircraft repair designs, general fastener permissions or approval to perform maintenance.
- FAA drawing and sheet-metal principles
FAA-H-8083-30B Chapter 4, pp.4-7–4-9 and 4-19, revision, BOM, dimensions and drawing reading; FAA-H-8083-31B Chapter 4, pp.4-31–4-34, rivet identity and margins; p.4-39 Figure 4-90, tool diameters and hole preparation; pp.4-40–4-43, preparation and inspection; pp.4-59–4-66, bend geometry.
- Original WWAOG-SM-101 Rev C training print
The 3.000 × 1.500-inch coupon, .3125-inch edge minimum, .128–.132-inch hole range and MS20470AD4-5 requirement are fictional kit requirements. They are not general aircraft limits. Existing workshop, independent review, final and completion requirements remain unchanged.
Original learning diagrams and supplied training records explain the stated relationships. Current aircraft-effective instructions and authorization govern actual maintenance.