352SOWI21-100 — Aircraft Sealing Procedures

352SOWI21-100 governs aircraft sealing procedures, including aircraft preparation, seal controls, and required documentation.

Search 352SOWI21-100

  • Publication number: 352SOWI21-100
  • Title: Aircraft Sealing Procedures
  • Date: 2021-04-14

View 352SOWI21-100 on armypubs.army.mil


It addresses applicability, aircraft preparation, preflight inspections, boxcar seals, access to sealed aircraft, and documentation. It requires specific inspections, seal verification, AFTO Form 781A entries, and approvals for breaking seals.

Applies to: It applies to all agencies within the 352d Special Operations Wing.

Topics covered

  • Aircraft sealing procedures
  • Aircraft preparation
  • Preflight inspections
  • Boxcar seals
  • Sealed aircraft access
  • AFTO Form 781A entries

Questions and answers

When may aircraft be sealed?

Aircraft may be sealed to ensure readiness and maximize crew duty day for contingencies, deployments, or exercises. These instructions are applicable to both home station and deployed operations. (paragraph 1)

When is aircraft sealing prohibited during normal operations?

Aircraft will not be sealed for maintenance or aircrew convenience during normal home station local flying and training operations. (paragraph 1)

What inspections are required before an aircraft is sealed?

Maintenance preparation of aircraft for sealing will include completion of all aircraft prior-to-flight inspections. (paragraph 2)

What information must be recorded after the Dash 1 preflight inspection?

Record (in black ink) the seal number, fuel load, Liquid Oxygen (LOX) quantity, date, local time, -1/-9 preflight completion, and any pertinent information (i.e. top of aircraft inspection not completed due to high winds, etc.) in the AFTO Form 781A. (paragraph 3)

When is work allowed on a sealed aircraft?

Once sealed, work will only be accomplished if an emergency occurs (I.E. catastrophic operational, maintenance, or weather event, etc.). Breaking a seal to perform routine maintenance is not authorized. (paragraph 3)

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