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Checking model and change letter when opening a drawing

Aviation Mechanic General (AMG) practice question 14 of 15 on Aircraft Drawings. ACS element AM.I.B.R3 · difficulty: recall. Want to answer it in a timed quiz? Use the Aviation Mechanic General (AMG) practice mode.

Question bank updated 2026-09-22

QUESTIONAfter reading the drawing number and the description of the article on a newly opened drawing, what should a technician check next?

  1. AThe model affected and latest change letter
  2. BThe scale, date, and the name of the draftsman who prepared it
  3. CThe zone numbers and the bill of material
Show the answer and explanation

Correct answer: A. The model affected and latest change letter

  • A — correct The handbook's procedure is to read the drawing number and description, then check the model affected, the latest change letter, and the next assembly listed before reading the illustrations.
  • B — incorrect These title block items identify the drawing but are not the step the handbook gives for confirming the drawing is the correct one.
  • C — incorrect Zone numbers help locate points on the sheet and the bill of material lists parts; neither confirms the drawing's applicability or currency.

BACKGROUND

A drawing cannot be read all at once, so the handbook gives a systematic procedure. Upon opening a drawing, read the drawing number and the description of the article. Next, check the model affected, the latest change letter, and the next assembly listed. Having determined that the drawing is the correct one, proceed to read the illustrations. This step ensures the mechanic is working from the current version of a drawing that applies to the aircraft.

STUDY TIP

Make the model and change-letter check a habit every time you open a drawing, before you study any view.

KEY POINTS

  • First read the drawing number and the description of the article.
  • Then check the model affected, the latest change letter, and the next assembly.
  • Only after confirming the drawing is correct should the illustrations be read.

SOURCES

  • FAA-H-8083-30B ch04 "Reading and Interpreting Drawings"
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MORE ON AIRCRAFT DRAWINGS

SkyDrill is not affiliated with the FAA. This is an original practice item based on FAA-H-8083-30B Aviation Maintenance Technician Handbook – General, 14 CFR part 43 and part 65. Regulations and handbooks are revised; confirm details against the current edition.