Table 4-1.—Unscheduled Aeronautical Equipment and Aircraft Inspections—Continued
TYPE OF INSPECTION
Transfer
PURPOSE OR WHAT’S INVOLVED
WHEN DONE
Inspection to include:
When a reporting custo-
An inventory of all equipment listed in the
dian transfers an aircraft or
aircraft inventory record
equipment. Includes air-
Verification of CADs and AEPSs
craft or equipment trans-
Configuration verification
fers to SDLM.
Hydraulic fluid sampling
Daily inspection required by the applicable PMS
publication
Verification of
(1) Monthly Flight Summary in the aircraft
logbook and
(2) Equipment Operating Records in the
Aeronautical Equipment Service Record
(AESR)
Conditional
More in-depth inspection when the equipment
condition indicates that such action is warranted
To inspect
for unscheduled maintenance
As required.
requirements when:
An event occurs that creates an administrative
requirement for an inspection or
And overlimit condition occurs. (Examples of
overlimit conditions are hard landing, engine
overspeed, and engine overtemp.)
(Note: Conditional inspection requirements that
specify servicing or fluid sampling do not require
logbook entries. Conditional inspection
requirements that prescribe inspections to
determine equipment condition requirements do
require associated logbook entries.)
Zonal
To detect obvious defects, such as leaks, frayed As required. (Normally in
cables, cracks, corrosion, or physical damage on a conjunction with sched-
specific area of an aircraft.
uled maintenance tasks)
tion by using the MAF. Table 4-2 lists the types of
scheduled inspections, what each involves, and when
each is done.
Deviations To Scheduled
Inspections
It may not always be possible to perform a given
inspection on the exact date or at the exact number of
hours for which the inspection is scheduled. To meet
these situations and to aid in workload scheduling, the
following inspection deviations may be applied:
For an inspection that is performed in
increments of calendar days, a deviation of plus
or minus 3 days may be applied to the authorized
inspection interval (inspections may be
performed 3 days before or 3 days after the
actual inspection induction date). The next
inspection due should be scheduled as if NO
deviation had occurred. This authorized
deviation requires no logbook entry.
For an inspection that is performed in
increments of flying hours or operating hours,
cycles, events, or rounds fired, a deviation of
plus or minus 10 percent (or any portion of 10
percent) may be applied to the authorized
inspection interval. The next inspection due
should be scheduled as if NO deviation had
occurred. For example, an equipment that has a
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