Table of Contents
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PIPER AIRCRAFT
PA-42-720 (Advanced Trainer)
MAINTENANCE MANUAL
E. Aerofiche
The Air Transport Association of America (ATA) has developed a specification for microfiche
reproduction of aircraft publications, for use by all ATA members. The information compiled in this
Aerofiche Maintenance Manual will be kept current by revisions distributed periodically. These
revisions will supersede all previous revisions and will be complete Aerofiche card replacements and
shall supersede Aerofiche cards of the same number in the set.
Conversion of Aerofiche alpha/numeric code numbers:
Example: 2J16
=
Aerofiche card number two of a given set and grid location J16.
First number "2" is the Aerofiche card number.
Letter "J" is the horizontal line reference per card.
Second number "16" is the vertical line reference per card.
F. Identifying Revised Material
A revision to a page is defined as any change to the printed matter that existed previously. Revisions,
additions and deletions shall be identified by a vertical black line along the left-hand margin of the
page opposite only that portion of the printed matter that was changed.
A black line in the left-hand margin opposite the chapter/section/subject,
page number and date, will
indicate that the text was unchanged but the material was relocated to a different page.
For parts listings an individual code letter "R" shall be used on each line to identify revisions.
G. Alphabetical Index
The alphabetical index following this portion of the introduction is provided as an assistance in locating
the desired information. The alphabetical index provides the chapter and sub-chapter in which any
given information may be found. Reference to the Table of contents in the front of the indicated
chapter will provide the specific page(s) on which the information can be found.
H. List of Effective Pages
The list of effective pages following each Chapter Divider-Tab, lists the issue date of each page that is
effective for that chapter.
I. Serial Number Explanation
The serial numbering system used pertains to the effectivity blocks and codes and it is a three
character alpha-numeric system. The system uses the last three digits of the aircraft's serial number.
The number 999 represent the term "and up". In some cases individual aircraft are referenced and
those serial numbers will be separated by a comma. Sequential series of serial number are
represented by the first serial number separated by a dash and the last serial number of the sequence.
EFFECTIVITY:
040-999
INTRODUCTIONJan
10/90
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Chapters
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