HOLLOMANAFBI21-190 — Dropped Object Prevention Program (DOPP)

HOLLOMANAFBI21-190 governs the Dropped Object Prevention Program for assigned and transient aircraft maintained at Holloman AFB.

Search HOLLOMANAFBI21-190

  • Publication number: HOLLOMANAFBI21-190
  • Title: Dropped Object Prevention Program (DOPP)
  • Date: 2021-05-10

View HOLLOMANAFBI21-190 on armypubs.army.mil


It defines dropped objects and establishes documentation, inspection, incident reporting, investigation, training, and program management requirements. The publication addresses aircraft panel security, maintenance actions, and responses to suspected dropped objects.

Applies to: It applies to all assigned aircraft and any transient aircraft that are maintained by the Transient Alert element at Holloman AFB.

Topics covered

  • Dropped object definition
  • Aircraft panel documentation
  • Panel security inspections
  • Dropped object incident reporting
  • Dropped object investigations
  • DOPP training

Questions and answers

What counts as a dropped object under HOLLOMANAFBI21-190?

A dropped object is any item that falls from an aircraft from the time the aircraft aligns on the runway for takeoff to engine shutdown. (paragraph 3)

When must maintenance personnel enter a Red X?

Individuals tasked to remove external panels, fairings, engine cowlings, antennas, windshields, and external light assemblies will enter a “Red X” in the Integrated Maintenance Data System (IMDS) and the aircraft forms prior to starting the removal/opening action. (paragraph 4)

When can a maintenance discrepancy be signed off?

The discrepancy will not be signed off on the forms until the panel, fairing, engine cowling, antenna, windshield, or light assembly/subassembly is properly installed/closed and inspected. (paragraph 4)

What must be documented when part of an inspection cannot be completed?

If a portion of the inspection cannot be accomplished for any reason (i.e. adverse weather or other conditions), document the areas not inspected in IMDS and on AFTO Form 781A, Maintenance Discrepancy and Work Document, on a “Red Dash”. (paragraph 4)

Who performs the dropped object prevention inspection?

The inspector for these purposes will be a qualified technician. This inspection will be accomplished along with the pre-launch walk around. (paragraph 5)

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