Military_Maintenance_Repair_Overhaul_NAMP.pptx

MILITARY MRO Based on Naval Aviation Maintenance Program (NAMP – COMNAVAIRFORINST 4790.2D, 2021)

1. Military Maintenance, Repair and Overhaul (MRO) Based on Naval Aviation Maintenance Program (NAMP – COMNAVAIRFORINST 4790.2D, 2021) Author: Mohamed Tarmizi Ahmad Affiliation: School of Aerospace Engineering Date: October 2025

2. Introduction to NAMP Defines policies and procedures for maintenance in U.S. Naval Aviation. Sponsored by Chief of Naval Operations (CNO) and managed by Commander Naval Air Forces (CNAF). Objective: Achieve aviation material readiness and safety.

3. Purpose and Objectives Ensure standardization, efficiency, and safety in maintenance. Optimize use of resources across all maintenance levels. Continuous improvement through data collection and analysis.

4. Core Principles Adherence to quality and safety. Efficient resource use at each maintenance level. Planned maintenance to minimize degradation. Data-driven improvement and accountability.

5. Maintenance Levels Organizational (O-Level): Routine inspection and servicing. Intermediate (I-Level): Component repair and calibration. Depot (D-Level): Overhaul, rebuild, modification, and testing.

6. O-Level Maintenance Conducted by operating units. Focus on quick turnaround and operational availability. Includes servicing, lubrication, part replacement, and minor repairs.

7. I-Level Maintenance Conducted by Intermediate Maintenance Activities (IMAs). Functions: Component testing, calibration, limited manufacturing. Goal: Provide ready-for-issue (RFI) parts and support to O-Level.

8. D-Level Maintenance Performed at Depot facilities or OEM sites. Focus: Rework, overhaul, and modification of complex systems. Managed by COMNAVAIRSYSCOM (NAVAIR).

9. Maintenance Management Structure Oversight by CNO and CMC. Execution by System Commands (NAVAIR, NAVSUP). Coordination by Aircraft Controlling Custodians (ACCs) and Wings/MAWs.

10. Responsibilities by Command Level CNO/CMC: Policy, manpower, and budget allocation. NAVAIR: Technical management and lifecycle support. Wings/MAWs: Training, inspections, and readiness monitoring. Operational Commanders: Deployment and logistics oversight.

11. Maintenance Functions Inspection & Testing Calibration & Quality Assurance (QA) Configuration Management (CM) Metrology and Calibration (METCAL) Reliability-Centered Maintenance (RCM)

12. Quality Assurance and Data Systems QA ensures compliance with maintenance standards. NALCOMIS and MDS provide data reporting and analysis. Continuous feedback loop for performance improvement.

13. MRO Continuous Improvement Implementation of AIRSpeed / Continuous Process Improvement (CPI). Focus on cost efficiency, safety, and readiness. Metrics: Aircraft readiness rate, cost per flight hour, maintenance man-hours per flight hour.

14. Integration with Logistics Material management via NAVSUP. Supply chain: Spare parts, calibration, documentation. Integration between maintenance and logistics ensures operational sustainability.

15. Summary NAMP provides the framework for U.S. Navy and Marine Corps MRO operations. Ensures mission readiness, resource optimization, and safety compliance. Model for integrated military maintenance management systems.

16. References COMNAVAIRFORINST 4790.2D, Naval Aviation Maintenance Program, 2021. NAVAIR Technical Publications. OPNAV M-8000.16 (Ordnance Maintenance Manual).