AFI21-101_HILLAFBSUP — Aircraft And Equipment Maintenance Management

AFI21-101_HILLAFBSUP governs Joint Oil Analysis Program support and related maintenance of support equipment at Hill Air Force Base.

Search AFI21-101_HILLAFBSUP

  • Publication number: AFI21-101_HILLAFBSUP
  • Title: AIRCRAFT AND EQUIPMENT MAINTENANCE MANAGEMENT
  • Date: 2025-03-20

View AFI21-101_HILLAFBSUP on armypubs.army.mil


It establishes procedures and responsibilities for obtaining, documenting, monitoring, and authorizing direct support of the Joint Oil Analysis Program. It also addresses aircraft grounding, initial investigations, munitions serviceability tags, and approval authority.

Topics covered

  • Joint Oil Analysis Program
  • Support equipment maintenance
  • Aircraft grounding
  • Munitions serviceability tags
  • Maintenance cyber discipline
  • Decentralized materiel support
  • eTool management
  • World Wide Identification management

Questions and answers

Who can approve maintenance-related actions under AFI21-101_HILLAFBSUP?

Operations Officer/MX SUPT may delegate approval authority to the AMU OIC/SUPT or Flight CC/SUPT. (paragraph 3)

Who can annotate serviceability tags for munitions items?

Munitions inspectors who are trained and certified may annotate serviceability tags for munitions items (TO 11A-1-10). (paragraph 4)

What is aircraft grounding?

Aircraft grounding is an administrative action taken to prohibit aircraft from flying because of a specific condition related to the aircraft or based on requirements of a directive. (paragraph 5)

How must a grounding be communicated to deployed weapon systems?

Communication of a grounding, or a potential grounding event (TCTO, OTI, PM event) to weapon systems operating in a deployed environment and/or under the authority of an operational command must follow the grounding procedures outlined in AFI 11-401 and 63-101/20-101. (T-1). (paragraph 5)

Who directs the initial investigation after an aircraft grounding condition?

The owning MXG/CC or equivalent will direct QA to develop a local OTI IAW TO 00-20-1 and this instruction. (T-1). (paragraph 5)

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