Depot Maintenance
Depot or D-level maintenance is maintenance that
requires skills and facilities beyond the O- and I-levels
of maintenance. It is performed by naval shipyards,
commercial shipyards, Naval Ship Repair Facilities,
contractor repair, the Naval Air Warfare Center
(NAWC), and by voyage repair teams (VRTs) from
specified naval aviation depots. D-level maintenance
supports the lower I- and O-levels of maintenance by
providing engineering assistance and performing
maintenance beyond the capability of lower level
maintenance activities. D-level maintenance functions
are grouped as follows:
Major overhaul and repair to ALRE
Modernization, modification, or conversion of
system components
Calibration (type III) by Navy Calibration
Laboratories
Incorporation of TDs and service changes
Manufacture of parts and/or accessory items
Technical and engineering assistance
MAINTENANCE TYPES
There are two general types of ALRE maintenance
performed without distinction as to levels of main-
tenance. They are upkeep and overhaul.
Upkeep Maintenance
Upkeep maintenance is preventive, corrective, or
additive maintenance performed by catapult and
arresting gear crewmembers. It includes servicing,
periodic inspection, functional and bench testing,
replacement, preservation, and repair of catapult and
arresting gear equipment.
Overhaul Maintenance
Overhaul
maintenance
is
the
process
of
disassembly sufficient to inspect all the operating
components. It includes the repair, replacement, or
servicing as necessary followed by reassembly and
functional testing. Upon completion of the overhaul
process the equipment will be capable of performing its
intended service. Much of this work is normally done at
naval overhaul and depot facilities, contractor plants,
and other industrial facilities.
REVIEW QUESTIONS
Q1.
List the three levels of maintenance.
Q2.
What is the concept of each level of main-
tenance?
Q3.
What are the general types of maintenance?
V-2 MAINTENANCE ORGANIZATION
STRUCTURE AND RESPONSIBILITY
LEARNING OBJECTIVES: Describe the
duties
of
maintenance
control,
quality
assurance, and maintenance support branches
of V-2 division. Describe the procedures used
to complete the ALRE maintenance action
form (MAF). Describe the operation of the
visual information display system (VIDS)
board.
Aircraft launch and recovery equipment (ALRE)
includes catapults, arresting gear and visual landing
aids
(VLA).
Since
ALRE
is
utilized
by
high
performance aircraft, safety must always be paramount
to the personnel who operate and maintain the
equipment. A properly implemented maintenance
program will improve safety, maintenance integrity,
performance, training of personnel, management, and
evaluation of maintenance performed. The aircraft
launch and recovery maintenance program (ALREMP)
is designed to maximize the effective utilization of
manpower and material to accomplish this goal.
The ALREMP provides standard maintenance
organization and procedures to be used by all V-2
divisions. This standardization relies heavily on the
maintenance control (MC), quality assurance (QA),
and maintenance support (MS) branches of the division
to establish good management practices and prevention
of maintenance defects. Figure 6-1 depicts the ALRE
maintenance organizations for aircraft carriers. You
will notice that in each of the divisions illustrated, three
distinct types of organization are identified. They are
(1) the operational organization, which depicts the lines
of authority delegated in the daily functions of a V-2
division; (2) the maintenance group, which includes the
lines of authority to be observed by all personnel
involved in the actual performance of any maintenance
action; and (3) the maintenance organization.
The
maintenance
organization
has
the
res-
ponsibility of managing the maintenance effort. This
includes the planning and performance of maintenance,
compliance with all maintenance policies and technical
directives, continued training of all maintenance
6-2
