the aircraft is assigned. The MAP is the source of
information for most entries in the aircraft logbook; for
flight and operating hour entries, utilization reports
should be used.
Entries must be typewritten or printed in black ink,
except in those cases where temporary entries are
allowed to be made in pencil. Entries are NOT to be
made with felt-tipped pens.
In most operating activities, the logbook clerk will
make the actual aircraft logbook entries. However,
rarely will logbook clerks be authorized to sign aircraft
logbook record entries. The following personnel are
authorized to sign aircraft logbooks and records:
Organizational-level maintenance officer
Intermediate-level maintenance officer
Depot-level director of operations
Operations maintenance division (OMD)
Additional personnel may be authorized to sign
aircraft logbooks and records if they have been
designated in writing to do so by one of the personnel
listed above. When the contractor or naval aviation
depot (NADEP) field team supervisor is not authorized
or does not sign the required logbooks and records, the
reporting custodian verifies the work performed and
signs the necessary logbook and record entries.
Rubber stamp signatures are not authorized.
Signatures are not transcribed when a new logbook
is initiated or when old logbooks or records are
consolidated. The same date is used for all entries on
the Inspection and Technical Directives pages, and in
the Date Completed column of the Repair/Rework
Record. The signature that appears on the
Repair/Rework Record is certification that entries in
the Inspection and Technical Directives pages are
complete and correct as of that date. Subsequent record
changes are treated as separate line items and signed
accordingly. If logbooks or records must be
transcribed, the persons name who originally signed
the entry should be typed or printed onto the new page
preceded with /s/ to indicate that the page was
transcribed. Use original documented dates only.
Q9. Logbook entries should be made under the
direction of what officer of the station or unit to
which the aircraft is assigned?
Q10. The commanding officers, O-level maintenance
officers, I-level maintenance officers, D-level
directors of operations, and operations
maintenance division (OMD) officers have
authority to sign aircraft logs and records. What
additional personnel may be authorized to sign
aircraft logs and records?
AIRCRAFT LOGBOOK FORMS
LEARNING OBJECTIVE: Define the
purpose of each record maintained in the
An aircraft logbook is made up of forms for
recording essential data. No other pages or forms, other
than those described in OPNAVINST 4790.2, are to be
inserted, stapled, or otherwise attached to the logbook.
Additional data for which there is no designated place
in the logbook are inserted in a manila envelope. This
envelope is pasted inside the back of the logbook
binder. This envelope should not become a catchall for
data that should be an entry in the logbook, or that is not
pertinent to the purpose of the logbook.
A brief description and example of each logbook
form is contained in the following paragraphs.
Maintenance history cards (SRCs, MSR, ASR, EHRs)
should appear in the order stated in the applicable
Periodic Maintenance Information Card (PMIC).
Remember, you should always refer to the latest edition
of OPNAVINST 4790.2 for detailed instructions when
making entries in the aircraft logbook.
NOTE: The aircraft logbook is in loose-leaf form;
therefore, the model and bureau serial number (BUNO)
of the applicable aircraft should be inserted on each
page (in the spaces provided). This action ensures ready
identification when pages are removed for entries or if
logbook pages become separated from its logbook.
STRUCTURAL LIFE LIMITS (OPNAV
The Structural Life Limits form is generated at the
squadron level. This form is used to maintain a current
record of aircraft structural life-limited components
designated for depot-level replacement that do not
require SRC card or ASR documentation. These
components, with their respective life limits, are listed
in the applicable PMICs, interim rapid action changes,
TDs, and Fixed Wing Aircraft Structural Life Limits,
NAVAIRINST 13120.1, and Rotary Wing Aircraft
Structural Life Limits, NAVAIRINST 13130.1. The
record is shown in figure 6-1.