115 NAVAL AVIATION MAINTENANCE PROGRAM (NAMP) FUNDAMENTALS
115.1 State the objective of the Naval Aviation Maintenance Program (NAMP).
The objective of the NAMP is to meet and exceed aviation readiness and safety standards established by CNO. This is accomplished by optimizing the use of manpower, material, facilities and financial resources in accordance with policy guidance and technical direction provided by this instruction and by related implementing directives. The methodology for meeting the objective is "continuous process improvement" as detailed in Volume I, Chapter 2. The NAMP provides for the maintenance, manufacture and calibration of aeronautical equipment and material at the level of maintenance which will ensure optimum use of resources. It further provides for the protection of weapon systems from corrosive elements through an active corrosion control program, and the application of a systematic planned maintenance program. Finally, it provides for the collection, analysis, and use of pertinent data to continuously improve material readiness and safety at the least possible cost.
115.2 State the titles and briefly describe the five volumes of the NAMP:
- Vol. I- Concepts, Policies, Organizations, Maintenance Support Procedures,
and Organizational/Intermediate Level Maintenance
- Vol. II - Depot Level Maintenance.
- Vol. III- Maintenance Data Systems (MDS).
- Vol. IV- Data processing requirements.
- Vol. V -Standard Operating Procedures
115.3 Describe the three levels of aviation maintenance:
- Organizational- Maintenance which is performed by an operating unit on a day-by-day basis in support of its own operations. The O-level mission is to maintain assigned aircraft and aeronautical equipment in a full mission capable status while continually improving the local maintenance process. Some O-level functions include servicing, inspections, handling, on-equipment corrective and preventive maintenance, record keeping, reports preparation, etc.
- Intermediate- Maintenance which is the responsibility of, and performed by, designated maintenance activities in support of using organizations. Their mission is to enhance and sustain the combat readiness and mission capability of supported activities by providing quality and timely material support at most approximate location with the lowest practical resource expenditure. I-level maintenance consists of on and off equipment material support.
- Depot - Maintenance performed at naval aviation industrial establishments to ensure continued flying integrity of airframes and flight systems during subsequent operational service periods or Special Depot Level Maintenance (SDLM) induction. They perform what is commonly referred to as "overhaul" maintenance. They also perform maintenance on material requiring major overhaul, rebuilding of parts, assemblies, subassemblies, and end items. They provide rework and repair of engines, components, weight and balance, etc.
115.4 Discuss the general responsibilities of the following personnel:
- Maintenance Officer (MO) - The Maintenance Officer is responsible for the accomplishment of the department mission. He or she shall administer procedures in accordance with the NAMP, employ sound management practices in handling of personnel, facilities, and material. He/she shall define and assign responsibilities, functions, and operations.
- Aircraft Maintenance Officer (AMO) - Assistant head of the maintenance department. He/she shall assist the MO in the performance of duties and keep the MO fully informed of matters concerning the department. He receives the same training, and is qualified under the same guidelines as the MO.
- Maintenance/Material Control Officer (MMCO)- Responsible for the overall production and material support of the department. General responsibilities include coordinating and monitoring the department workload, maintaining liaison between supported activities and supply, reviewing Maintenance Data Reports, etc.
- Material Control Officer- Supply corps officers assigned to a deployable squadron will be assigned as the MCO. Responsible to the Maintenance Material Control Officer for managing the Tool Control Program. Supports and disseminates information to command personnel on the BOSS III Program and Price Challenge Hotline. The BOSS Program is a partnership in which the Navy seeks to reduce supply support costs by improving reliability and maintainability of NAVICP managed items in fielded weapon or support systems. Used to reduce costs and improve readiness.
115.5 State the basic responsibilities of maintenance/production control.
Maintenance control will strive to maintain full mission capable aircraft. Production Control will strive to process items received to keep all non-mission capable and partial-mission-capable parts processed and back to the respective command in a timely fashion.
115.6 Discuss the basic responsibilities of the maintenance administration division.
Maintenance Administration will provide all administrative functions of the Maintenance Department including the preparation of messages, processing of incoming messages and reports, maintaining Instructions, etc.
115.7 Describe the difference between scheduled and unscheduled maintenance.
Scheduled maintenance is the program for formally ensuring timely discovery and correction of defects. These are periodic prescribed inspections and servicing of equipment, done on hours, cycles or landings, calendar or mileage basis.
Unscheduled maintenance is maintenance on discrepancies and deficiencies found during operations. It consists of fault isolation or troubleshooting, repair, replacement, test, and calibration.
115.8 Discuss the purpose of the following inspections:
- Daily- Conducted to inspect for defects to a greater depth than the turnaround or post-flight inspections. It is valid for 72 hours, provided that no flight occurs during this period and no maintenance other than servicing is performed.
- Turnaround- Conducted between flights to ensure the integrity of the aircraft for flight, verify proper servicing, and detect degradation that may have occurred during the previous flight. Good for 24 hours, provided that no flight occurs during this period and no maintenance other than servicing was performed.
- Special-Inspection with a prescribed interval other than daily, calendar or phase. Special inspections always have a number in them; i.e., 14 day, 2000 landing, 2000 hour inspection, etc. These intervals are specified in the Periodic Maintenance Information Card deck.
- Conditional- Unscheduled conditions requiring an inspection such as a bird strike inspection, lightening strike inspection, hard-landing inspection, Foreign Object Damage (FOD) inspection, etc.
- Phase- This inspection divides the total scheduled maintenance requirement into smaller packages, or phases of the same work content. These are done sequentially and at specified intervals. The cycle is repetitive for the service life of the aircraft and is not interrupted during SDLM induction.
- Acceptance- Performed at the time a reporting custodian accepts a newly assigned aircraft, from any source, and on return of an aircraft from SDLM or other major depot level maintenance. Includes an inventory of equipment listed in the Aircraft Inventory Record (AIR), verification of cartridge actuated devices (CADs), escape propulsion systems, configuration verification, hydraulic fluid sampling, daily inspection, and complete functional check flight.
- Transfer- Performed at the time a reporting custodian transfers an aircraft or support equipment. It includes an inventory of all items listed on the AIR, configuration verification, hydraulic fluid sampling, and daily inspection.
- Aircraft Service Period Adjustment (ASPA)- A depot level evaluation of the aircraft's general material condition. Performed by certified ASPA evaluators and consists of record and logbook analysis, and physical examination of the aircraft.
115.9 State the purpose of the Functional Check Flight (FCF).
Used to determine whether the airframe, power-plant, accessories and equipment are functioning in accordance with predetermined standards which subjected to the intended operating environment. Conducted at the completion of SDLM, acceptance, after engine system installation, reinstallation, flight control surface component replacement, attitude system component replacement/adjustment, certain Phase inspections, or for any time the aircraft has not flown for 30 days or more regardless of the reason. Other conditions are determined necessary by the Commanding Officer.
115.10 State the purpose of the Weight and Balance Program.
Provides service activities with a standard system of field weight and balance control. It also gives the maximum operating weights, center of gravity restrictions and method of loading that is satisfactory for safe flight. Modifications are utilized in updating aircraft records. Provides flight crews with accurate base line weight and center of gravity data.
115.11 State the purpose of the aircraft logbook.
The logbook is a hard cover, loose-leaf binder containing the history of the aircraft and includes the following sections: Non-aging record, flight time, inspection records, repair and rework sections, Technical Directive section, Miscellaneous history, preservation and depreservation record, installed explosive devices section, inventory record, assembly service record, equipment history record, scheduled removal components cards (SRCs), aviation life support equipment records, seat survival kit records, and Aeronautical Equipment Service Records (AESRs). AESR records are kept on items that have their own inspections, etc, such as engines, auxiliary power units, propeller assemblies, etc.
115.12 State who is authorized to sign aircraft logbook entries.
Anyone designated in writing by the Commanding Officer. Usually the Maintenance Officer, Maintenance Senior Chief Petty Officer, Maintenance Chief Petty Officer.
115.13 State who is authorized to release aircraft safe for flight.
The signature and rank rate of the Maintenance Officer, Maintenance Material Control Officer, or maintenance control officer certifying safe for flight condition of the aircraft.
Other persons may sign the record if authorized and designated in writing by the CO. The material condition of an aircraft which, considering mission requirements and environmental conditions, permits it to be launched, flown, and safely landed, and ensures the aircrew has the operable equipment for safe flight requirements.
115.14 Discuss the following Planned Maintenance System (PMS) publications:
- Maintenance Requirement Cards (MRCs)- Provides instructions required for the efficient performance of scheduled maintenance tasks. Each card contains tasks related to a particular system, subsystem, area, or component using a logical sequence for accomplishment. Identifies the recommended rating of the person to perform the maintenance, performance time, and work area or zone involved. List what support equipment is needed, consumables, replacement parts, and assistance requirements for task performance. MRCs do not include instructions for repair, adjustment, calibration, or procedures for correcting defects.
- Periodic Maintenance Information Cards (PMICs)- The use of PMICs is to identify scheduled or forced removal items and their replacement intervals. They contain component or assembly removal and replacement, airframe structural life limits, maintenance requirements system indexes such as MRCs, conditional inspections, phase change implementation cards, etc.
115.15 Define the following as applied to aviation maintenance:
- Illustrated Parts Breakdown (IPB)- Contains illustrations and part numbers for all parts of the aircraft or equipment on which it is issued. The IPB contains information required for ordering parts, and for identifying parts and arrangements of parts in assemblies.
- Maintenance Instruction Manuals (MIMs)- Contains instructions for "O" and "I" level maintenance and servicing of a specific model aircraft. Identifies each maintenance task to the responsible maintenance level.
115.16 Discuss the Workcenter Supervisor's responsibilities.
Primary job of the W/C supervisor is the hour-by-hour maintenance situation. This requires constant communication between the work center and Maintenance Control. Keep Maintenance Control constantly notified.
115.17 Define the concept of Quality Assurance (QA).
The concept of QA is that of the prevention of the occurrence of defects. The achievement of QA depends on prevention, knowledge, and special skills.
115.18 Explain the responsibilities of the following QA personnel:
- Quality Assurance Representative (QAR)- When performing inspections, they are considered to be the direct representative of the CO for ensuring safety of flight of the item concerned. They certify that the work involved has been personally inspected by them, that it has been properly completed, and is in accordance with current instructions and directives.
- Collateral Duty QAR (CDQAR)- Assigned on a temporary or permanent basis in accordance with OPNAV 4790.2 series. Temporary CDQARs may be assigned when temporary severe shortages of skills will not support the assignment of a QAR in one of the billets or to relieve QARs during short periods of absence such as leave, temporary assigned duty periods, hospitalization, etc.
Permanent CDQARs may be assigned for Aircrew Personal Protective or Survival Equipment billet, and Armament billet when the activity has a minimal ordnance delivery in the assigned mission, for Egress/Environmental Systems when the activity does not have ejection seats, to supplement multiple work shifts, and on certain detachments or activities with 4 or less planes.
- Collateral Duty Inspector (CDI)- Assigned to production work centers to inspect all work and comply with the QA inspections required during all maintenance actions performed by their respective work centers. They will spot check all work in progress. They are monitored by QA and QA will establish minimum qualifications for personnel selected for CDI. They are given a written exam. An oral exam may be used.
115.19 Explain the purpose of the following QA audits.
- Special- Conducted to evaluate specific maintenance tasks, processes, procedures and programs. They may be requested by the work center at any time or when a new work center supervisor is assigned. Maintained copies of audits are held for one year.
- Quarterly/work center- conducted quarterly to evaluate the overall quality performance of each work center. All areas of the work center are evaluated including personnel, monitored and managed programs, logs and records, licenses, etc.
115.20 Discuss the two functions of the Central Technical Publications Library (CTPL).
QA manages the CTPL program. This function includes the determination of technical manuals required to support the maintenance organization, receipt and distribution control of manuals, and for ensuring manuals are updated throughout the maintenance organization. Internal control and distribution of the NAMP is a responsibility of the CTPL.
115.21 Discuss the elements of a successful Foreign Object Damage (FOD) Program.
The FOD prevention program identifies, corrects, and eliminates causal factors which are a command responsibility and must be a part of the maintenance program. QA will monitor the FOD program. All work centers will institute procedures for compliance.
115.22 State the primary objective of the Tool Control Program.
This program provides a means to rapidly account for all tools after completing a maintenance task, thus reducing the potential for FOD. A secondary benefit is reduced tool loss.
115.23 Explain the purpose of the following programs:
- Fuel Surveillance- Free water and foreign contaminants in aircraft fuel systems, singularly or in combination, constitute a hazard in naval aircraft. Harmful affects of water, particles, and microbiological growth include erratic or incorrect fuel quantity indications, icing of filters, valves and other fuel system components. Fuel samples will be monitored and sampled. QA will monitor this program. A record of when and which fuel tanks were sampled will be maintained.
- Navy Oil Analysis- Provides a diagnostic technique to monitor aeronautical equipment without removal or extensive disassembly. QA will ensure samples are taken from engines and accessories at intervals established in appropriate MRCs and MIMs. Results will be maintained and trends highlighted.
- Aviators Breathing Oxygen (ABO) Surveillance- All persons in the ABO program will be thoroughly familiar with the characteristics of ABO, Liquid Oxygen (LOX), gaseous hazards, and the need for quality standards. Operations involving the handling of LOX or gaseous oxygen will be preformed by 2 or more qualified persons. They shall be thoroughly trained and monitored.
- Hydraulic Contamination Control- The prime objective of this program is to achieve and maintain a satisfactory level of fluid purity in hydraulic systems, thereby providing for safe and efficient operation of naval aircraft and support equipment. Navy standard class 5 (aircraft) and Navy standard class 3 (support equipment) classes or cleaner contamination levels will be maintained.
- Tire and Wheel Maintenance Safety- Persons handling tires and wheels shall be properly trained and aware of the safety hazards. They shall handle tires and wheels with the same care as that given to live ordnance. All persons trained will be familiar with all applicable manuals.
115.24 State the purpose of the Maintenance Training Improvement Program (MTIP).
A training management system which evaluates the technical knowledge levels of aviation technicians. Comprehensive diagnostic testing in specific systems or subsystems identifies deficiencies which are targeted for refresher training. Training is concentrated on technical knowledge, deficiencies, and overall activity capabilities.
115.25 Explain the purpose of the Monthly Maintenance Plan (MMP).
Provides a schedule of predictable maintenance work. It is prepared and distributed by the 25th of each month. It is used by supervisors to be aware of upcoming requirements. It includes the following minimum information: flight hours, dates of scheduled inspections, training, qualifications, chain-of-command, calibration schedules, Technical Directive compliance dates, etc.
115.26 Discuss the importance of the Electro-Static Discharge (ESD) Program.
ESD is the transfer of electrostatic charge between objects at different potentials caused by direct contact or induced by an electrostatic field. The ESD program provides protected areas for material, equipment, and procedures required to control and minimize electrostatic discharges. ESD protected areas are required when handling ESD parts, assemblies, and equipment outside of their ESD protective covering or packaging.
OPNAVINST 4790.2G (NAMP)