ENSTROM 480B OPERATOR’S MANUAL
INTRO-5
Rev.
24
Report No. 28-AC-023
May 2/19
1. Indexes, figures, and tabular data where the
change cannot be readily identified.
2. Blank space resulting from the deletion of text,
illustration, or a table.
3. Correction of minor errors, such as spelling,
punctuation, relocation of material, etc. unless such
correction changes the meaning of the material.
INTRO-7. Use of Words, Shall, Should, and May
Within this technical manual, the word "shall" is used to
indicate a mandatory requirement. The word "should" is
used to indicate a nonmandatory but preferred method of
accomplishment. The word "may" is used to indicate an
acceptable method of accomplishment.