439AWI21-103 — Accounting For Aircraft Flying Hours

439AWI21-103 governs procedures for accounting for aircraft flying hours in the Maintenance Information System.

Search 439AWI21-103

  • Publication number: 439AWI21-103
  • Title: ACCOUNTING FOR AIRCRAFT FLYING HOURS
  • Date: 2025-07-17

View 439AWI21-103 on armypubs.army.mil


It establishes processes for reviewing AFTO Form 781 documents, entering flight data, and verifying Aircraft Utilization Reports. It requires reconciliation, auditing, filing, and monthly reporting of flying-hour information.

Applies to: It applies to the 439th Maintenance Group (439 MXG), 337th Airlift Squadron (337 AS) and the 439th Operations Support Squadron (439 OSS).

Topics covered

  • Aircraft flying hours
  • AFTO Form 781 documents
  • Maintenance Information System data entry
  • Aircraft Utilization Reports
  • Flying hour reconciliation
  • Aviation Resource Tool Enterprise Mission Information System

Questions and answers

Who must provide the completed AFTO Form 781 after sortie generation?

After the completion of each sortie generation, the aircraft commander will provide accurate and completed Air Force Technical Order (AFTO) Form 781, Arms Aircrew/Mission Flight Data Document to the de-briefer. (paragraph 1)

What does the maintenance de-briefer do with AFTO Form 781 errors?

The maintenance de-briefer will review all AFTO Form 781(s) for completeness and identify any missing information or errors for immediate correction. (paragraph 1)

How is AFTO Form 781 data entered into the Maintenance Information System?

The MOC will enter all required data from the AFTO 781 into the Field Maintenance Command and Control (FMxC2), 9020 program (detailed aircraft flying hour input).

How must the Aircraft Utilization Report be verified?

The printed Aircraft Utilization Report (AUR) will be verified to assure that 781 entries match the mission numbers and flight times listed on the AFTO Form 781 from the previous day.

What must the SARM office do with flying hour data?

Enter and audit the flying hour data utilizing the Aviation Resource Tool Enterprise Mission Information System (ARTEMIS).

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