DEPARTMENT OF THE AIR FORCE - static.e-publishing.af.mil

BY ORDER OF THE SECRETARY OF THE AIR FORCE

AIR FORCE INSTRUCTION 21-101

16 JANUARY 2020 Maintenance

AIRCRAFT AND EQUIPMENT MAINTENANCE MANAGEMENT

COMPLIANCE WITH THIS PUBLICATION IS MANDATORY

ACCESSIBILITY: Publications and forms are available for downloading or ordering on the e-Publishing website at e-publishing.af.mil.

RELEASABILITY: There are no releasability restrictions on this publication.

OPR: AF/A4LM

Supersedes:

AFI 21-101, 1 May 2015;

AFI 21-110, 16 Jun 2016;

AFI 21-123, 3 Feb 2017; AFI 21-124, 12 Jan 2017; and AFI 21-136, 3 Feb 2017

Certified by: SAF/AQD (Ms. Angela L. Tymofichuk)

Pages: 332

This publication implements Air Force Policy Directive (AFPD) 21-1, Maintenance of Military Materiel. It is the basic Air Force Instruction (AFI) for all weapon system and support equipment maintenance management guidance. It provides the minimum essential guidance and procedures to safely and effectively maintain, service, and repair weapon systems and support equipment. This publication applies to all military and civilian members of the Regular Air Force (RegAF), Air Force Reserve (AFR) and Air National Guard (ANG) and those with contractual obligation to comply with Air Force publications. Supplements and addendums are written in accordance with (IAW) AFI 33-360, Publication and Forms Management. Supplements must identify and document Major Command (MAJCOM), AFR, and ANG required deviations (applicability, variance, exception and differences in organizational placement of responsibilities/processes) in their supplement and addendums with the abbreviation "(DEV)". Place the "DEV" entry after the Paragraph number and directly preceding the affected text, such as (AMC) (DEV) Use the... or (ADDED-AMC) (DEV) Use the...). All supplements and addendums are submitted to the Air Force Maintenance Division (AF/A4LM) @ usaf.pentagon.af-a4.mbx.a4lm-maintenancepolicy@mail.mil for approval and are published in the e-Publishing website. The authorities to waive wing and unit level requirements in this publication are identified with a Tier ("T-0, T-1, T-

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AFI21-101 16 JANUARY 2020

2, T-3") number following the compliance statement. See AFI 33-360 for a description of the authorities associated with the Tier numbers. Submit requests for waivers through the chain of command to the appropriate Tier waiver approval authority, or alternately, to the requestor's commander for non-tiered compliance items. For questions on interpreting this instruction, first contact your MAJCOM maintenance functional activity. Refer recommended changes and questions about this publication through your MAJCOM, AFR or ANG, to the Office of Primary Responsibility (OPR) using the Air Force (AF) Form 847, Recommendation for Change of Publication; route AF Forms 847 from the field through the appropriate functional chain of command. Ensure all records created as a result of processes prescribed in this publication are maintained in accordance with Air Force Manual 33-363, Management of Records, and disposed of in accordance with the Air Force Records Disposition Schedule located in the Air Force Records Information Management System. The use of the name or mark of any specific manufacturer, commercial product, commodity, or service in this publication does not imply endorsement by the AF.

SUMMARY OF CHANGES

This publication has been substantially revised and must be completely reviewed in its entirety. Significant changes include the addition of Maintenance Cyber Discipline requirements, Decentralized Materiel Support, incorporation of four AFIs superseded above and establishes a Wing Avionics Manager Position requirement. Additionally, eTool and World Wide Identification (WWID) management procedures were expanded to provide standardized enterprise requirements. MAJCOMs/ANG designated to establish Special Certification Roster (SCR) prerequisites to optimize workforce alignment to mission requirements.

Chapter 1--MANAGEMENT OVERVIEW, SUPPORTING CONCEPTS AND

REQUIREMENTS.

11

1.1. Introduction. ............................................................................................................

11

1.2. Organization. ........................................................................................................... 11

1.3. Maintenance Concept. ............................................................................................

11

1.4. Aircraft Maintenance Tactics, Techniques and Procedures (TTP). ........................

12

1.5. Aircraft and Equipment Readiness. ........................................................................

12

1.6. Maintenance Discipline. .........................................................................................

13

1.7. Communications Security (COMSEC)/Controlled Cryptographic Item (CCI)

Accountability. ........................................................................................................

14

Table 1.1. Tiered Interface Examples. ...................................................................................... 14

1.8. Environmental Compliance. ...................................................................................

16

1.9. Publications. ............................................................................................................

16

1.10. Maintenance Training. ............................................................................................

17

AFI21-101 16 JANUARY 2020

3

1.11. Modification Management. ..................................................................................... 17

1.12. Maintenance Information Systems (MIS). .............................................................. 17

1.13. General Safety Guidance. ....................................................................................... 18

1.14. Duty Shifts and Rest Periods. ................................................................................. 18

1.15. Communications. .................................................................................................... 19

1.16. Maintenance Repair Priorities. ................................................................................ 19

Table 1.2. Maintenance Repair Priority Designators................................................................ 20

1.17. Associate Unit Program/Total Force Integration (TFI). ......................................... 21

1.18. Performance-Based Activities. ............................................................................... 22

1.19. Changes to Technical Orders. ................................................................................. 22

Chapter 2--ROLES AND RESPONSIBILITIES

23

2.1. General. ................................................................................................................... 23

2.2. Wing Commander (WG/CC) Responsibilities. ....................................................... 23

2.3. Wing Vice Commander (WG/CV) Responsibilities. .............................................. 24

2.4. Maintenance Group Commander (MXG/CC) Responsibilities. ............................. 24

2.5. Deputy Maintenance Group Commander (MXG/CD). ........................................... 30

2.6. MXG Superintendent Responsibilities. .................................................................. 30

2.7. Wing Weapons Manager (WWM). ......................................................................... 31

2.8. Squadron Commander (SQ/CC) Responsibilities. .................................................. 35

2.9. Maintenance Supervision Responsibilities. ............................................................ 36

2.10. Flight Supervision. .................................................................................................. 38

2.11. Production Superintendent (Pro Super). ................................................................. 41

2.12. Section NCOIC/Chief. ............................................................................................ 41

Chapter 3--AIRCRAFT MAINTENANCE SQUADRON (AMXS).

44

3.1. General. ................................................................................................................... 44

3.2. Maintenance Supervision Responsibilities. ............................................................ 44

3.3. Aircraft Maintenance Unit (AMU). ........................................................................ 44

3.4. AMU OIC/SUPT Responsibilities. ......................................................................... 44

3.5. Production Superintendent (Pro Super). ................................................................. 44

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AFI21-101 16 JANUARY 2020

3.6. Flightline Expediter. ...............................................................................................

45

3.7. Aircrew and Maintenance Debrief Section. ............................................................

46

Table 3.1. Landing Status Codes. ............................................................................................. 48

Table 3.2. System Capability Codes ......................................................................................... 48

Table 3.3. Deviation Cause Codes ............................................................................................ 49

3.8. Aircraft Section. ......................................................................................................

49

3.9. Specialist Section. ...................................................................................................

50

3.10. Weapons Section. .................................................................................................... 51

3.11. Support Section. ......................................................................................................

58

3.12. AMU Decentralized Materiel Support (DMS). ....................................................... 58

Chapter 4--MAINTENANCE SQUADRON (MXS)

60

4.1. General. ...................................................................................................................

60

4.2. Maintenance Supervision Responsibilities. ............................................................

60

4.3. MXS Production Superintendent (Pro Super). ........................................................ 60

4.4. Accessories Flight. ..................................................................................................

61

4.5. Aerospace Ground Equipment (AGE) Flight. ......................................................... 66

4.6. Armament Flight. ....................................................................................................

68

4.7. Avionics Flight. ......................................................................................................

70

4.8. Fabrication Flight. ...................................................................................................

71

4.9. Maintenance Flight. ................................................................................................

74

4.10. Munitions Flight. ....................................................................................................

78

4.11. Propulsion Flight. .................................................................................................... 78

4.12. Test, Measurement, and Diagnostic Equipment (TMDE) Flight. ........................... 86

Chapter 5--MAINTENANCE OPERATIONS (MXO).

88

5.1. General. ...................................................................................................................

88

5.2. Maintenance Operations. ........................................................................................

88

5.3. Maintenance Training (MT). ..................................................................................

98

5.4. Programs and Resources (P&R). ............................................................................

99

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Chapter 6--QUALITY ASSURANCE (QA)

101

6.1. General. ................................................................................................................... 101

6.2. Responsibilities. ...................................................................................................... 101

6.3. QA Superintendent (QA SUPT) Responsibilities. .................................................. 102

6.4. Chief Inspector Responsibilities. ............................................................................ 104

6.5. Quality Assurance Inspector Responsibilities. ........................................................ 105

6.6. Quality Assurance Inspector Training. ................................................................... 105

6.7. Maintenance Standardization and Evaluation Program (MSEP). ........................... 106

6.8. LEAP QA Database. ............................................................................................... 116

6.9. QA Product Improvement Programs (PIP). ............................................................ 118

6.10. Technical Order Distribution Office (TODO). ....................................................... 119

6.11. One-Time Inspections (OTI) program. ................................................................... 122

6.12. Functional Check Flights (FCFs) to include Operational Check Flights (OCFs). ... 122

6.13. Inflight Operational Checks. ................................................................................... 124

6.14. High Speed Taxi Checks. ........................................................................................ 124

6.15. Weight and Balance (W&B) Program. ................................................................... 124

Chapter 7--IMPOUNDMENT PROCEDURES

126

7.1. Aircraft and Equipment Impoundment. .................................................................. 126

7.2. Specific Guidance. .................................................................................................. 126

7.3. Impoundment Authorities. ....................................................................................... 126

7.4. Impoundment Official Responsibilities. ................................................................. 127

7.5. Mandatory Impoundments. ..................................................................................... 127

7.6. Impoundment Procedures. ....................................................................................... 128

7.7. Rules of Impoundment Specifically for Explosive-Related Events/Mishaps. ........ 129

Chapter 8--TOOL AND EQUIPMENT MANAGEMENT

131

8.1. Tool and Equipment Management. ......................................................................... 131

8.2. Guidelines for Program Management. .................................................................... 131

8.3. General Program Guidelines.................................................................................... 132

8.4. TMDE Management Guidelines. ............................................................................ 135

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