Monthly Flight Summary (4790/21A)
The reporting custodian maintains the
Monthly Flight Summary. This form (fig. 6-3) is
designed to permit the monthly compilation of
significant flight operational data throughout the
service life of the aircraft. Reporting custodians
ensure that all monthly totals have been entered
on this form before induction into rework.
Rework activities make monthly entries on this
form during the time an aircraft is in their
reporting or physical custody. This form is a
permanent part of the aircraft logbook.
The Monthly Flight Summary form is a single-
page form divided into four parts. Monthly entries
are made on part IV of the form, with all months
accounted for in chronological order. Entries are
typewritten or printed in ink, with one exception.
The form may be closed out in pencil when the
aircraft is transferred.
Inspection Record (OPNAV 4790/22A)
The purpose of the Inspection Record form
is to reflect periodic and conditional inspections
performed on the aircraft. Routine preflight,
postflight, turnaround, daily, and special
inspections as well as servicing, engine wash, and
oil sampling are not logged in any logbook.
Phased, calendar, and conditional inspections
are maintained on separate pages. The form,
illustrated in figure 6-4, provides space for
identification as to whether the listed inspections
are periodic or conditional. The left column on
the form is titled TYPE OR DESCRIPTION OF
INSPECTION to facilitate proper descriptive
entries for individual inspections.
Calendar inspections refer to a stipulated
number of calendar days, and phased inspections
refer to a stipulated number of flight hours.
Records of these inspections are removed from
the aircraft logbook at the time of standard
depot-level maintenance (SDLM), and a new
record is initiated.
Conditional inspections are unscheduled
events required as a result of a specific overlimit
condition (hot start, overtemp, hard landing,
etc.), or as a result of circumstances or events
that create an administrative requirement
Figure 6-3.-Monthly Flight Summary.