CHAPTER 6
AIRCRAFT LOGBOOKS
All activities that have reporting custody of naval
aircraft and related aeronautical equipment and
components maintain aircraft logbooks, records, and
associated forms in an up-to-date condition. In
addition, commands utilitizing Naval Aviation
Logistics Command Management Information System
(NALCOMIS) must also maintain an applicable logs
and records subsystem in a proper and up-to-date
status.
AIRCRAFT LOGBOOK ROLE
LEARNING OBJECTIVES: Define the
purpose of the aircraft logbook. Identify
procedures to correct erroneous aircraft
logbook entries.
Aircraft logbooks, records, and forms provide a
complete history of aircraft inspections, flight hours or
hours of operation, modifications, and major repairs.
These records provide maintenance personnel with a
source of information for scheduling future periodic
inspections and component replacement. In addition,
these logs, records, and forms, when maintained
properly, provide management with information
related to the aircraft’s and equipment’s service age.
Incomplete or poorly maintained records can result
in unnecessary inspections and overhaul of
aeronautical components, even loss of aircraft and pilot
or aircrew. Obvious mistakes in record keeping may be
corrected by the current custodian and initialed or
signed off without further reference to the previous
custodian. Discrepancies that require corrective action
should be researched immediately by the current
custodian. The discrepancies should be corrected after
receipt of correspondence from the previous custodian
that specifies the appropriate corrective action.
As you can see, properly maintained aircraft
logbooks and records provide a critical function in
aviation maintenance and aircrew safety. As an AZ
assigned to the logs and records section of maintenance
control, you will be responsible for maintaining
logbook accuracy. To effectively perform as logbook
clerk, you should have an in-depth working knowledge
of the technical directive (TD) compliance system,
naval correspondence formats, classified material
handling, technical manuals and directives, and the
NALCOMIS Organizational Maintenance Activity
(OMA) Logs and Records subsystem. A complete
listing of the responsibilities of the aircraft logbook
clerk can be found in The Naval Aviation Maintenance
Program (NAMP), OPNAVINST 4790.2.
Q1. What record provides a complete history of air-
craft inspections, flight hours flown, modifica-
tions, and major aircraft repairs?
Q2. What activity may make corrections to obvious
errors in aircraft logbook record keeping.
AIRCRAFT LOGBOOK DESCRIPTION
LEARNING OBJECTIVES: Identify the
activity that originates the aircraft logbook.
Identify who maintains custody of aircraft
logbooks.
The aircraft logbook is a hard-cover, loose-leaf
ring binder that contains separators and page insert
forms. The logbook contains data that is needed to
monitor an aircraft’s operation throughout its service
life. The logbook also contains historical data about the
aircraft’s rework, major repairs, and flight operational
data. In addition, the logbook contains a record of the
TDs that affect the aircraft, its components, and its
accessories.
ORIGIN
Aircraft logbooks are initiated by the activity that
originally accepts the aircraft. The original accepting
activity is defined as either the naval plant
representative office (NAVPRO), if at a contractor’s
plant, or a designated Navy representative at any other
delivery point.
Q3. When an aircraft is accepted into the Navy
inventory, what organization initiates the aircraft
logbook?
CUSTODY
The logbooks are kept in the maintenance control
office of the station, ship, squadron, or detachment to
6-1
