of the aircraft for flight, verify proper servicing, and
to detect degradation that may have occurred during
the previous flight. The turnaround inspection is valid
for a period of 24 hours, provided that no flight and no
maintenance other than servicing occur during this
period. The accomplishment of the daily inspection
does not satisfy the turnaround requirements. On
aircraft that are furnished turnaround inspection
requirements, the preflight and postflight
requirements do not apply.
Phase inspection. The phase maintenance concept
divides the total scheduled maintenance requirements
into small packages or phases of approximately the
same work content. These are done sequentially at
specified intervals. Completion of all required phases
at their specified intervals completes the phase
inspection cycle. The cycle is repetitive for the service
life of the aircraft and is not interrupted during SDLM.
Phase inspections are not included in the SDLM
specifications, and are not done during the SDLM
process. Aircraft returning from SDLM/special
rework have the next phase due upon expiration of the
authorized interval from the last phase inspection
Special inspection. A special inspection is a
scheduled inspection with a prescribed interval other
than daily or phase. These intervals are specified in the
applicable PMS publication and are based on elapsed
calendartime, flight hours, operating hours, or number
of cycles/events; for example, 7, 28 days; 50, 100, 200
hours; 10, 100 arrestments; or 5,000 rounds fired.
Zonal inspection. A zonal inspection is a general
inspection of a specific area of an aircraft. These
inspections are for obvious defects, such as leaks,
frayed cables, cracks, corrosion, or physical damage.
Zonal inspections are normally performed in
conjunction with other scheduled maintenance tasks
by the rating assigned, such as an Aviation Electronics
Technician (AT) rating assigned to perform an
inspection on a radar antenna may also be assigned a
zonal inspection of the compartment for obvious
NOTE: You should refer to the Naval Aviation
Maintenance Program (NAMP), OPNAVINST
4790.2, for added information about the maintenance
program and the forms and records used in the
What type inspection is performed at the time a
reporting custodian accepts a newly assigned
What type inspection is performed to check
equipment that requires a daily verification of
What type inspection is required as the result of
a specific overlimit condition?
A preflight inspection is valid for a period of how
What type inspection consists of checking the
aircraft for fright readiness by performing visual
examinations and operational tests to discover
defects and maladjustments that, if not corrected,
would cause accidents or aborted missions?
What type inspections are normally performed in
conjunction with other scheduled maintenance
tasks by the rating assigned?
This chapter identified the organization of the line
division. Responsibilities and qualification of a plane
captain were covered but were not all inclusive.
Special safety requirements and safety precautions for
aircraft ashore and afloat were also mentioned. Special
programs covered in this chapter touch on the basics.
The information contained in these programs is more
than any individual could be expected to memorize or
be solely responsible for. You should keep informed
of changes to programs at your command that might
affect your work center.