WHITEMANAFBI21-117 — Equipment Maintenance Classified Data Purge And Upload Of Avionics Line Replaceable Units(lru’s)

WHITEMANAFBI21-117 governs classified data purge, software upload, handling, custody, and disposition of avionics LRUs.

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  • Publication number: WHITEMANAFBI21-117
  • Title: EQUIPMENT MAINTENANCE CLASSIFIED DATA PURGE AND UPLOAD OF AVIONICS LINE REPLACEABLE UNITS(LRU’S)
  • Date: 2024-06-28

View WHITEMANAFBI21-117 on armypubs.army.mil


It identifies LRU types and sub-system nomenclature, software requirements, and two types of classified data purge. It requires classification evaluation, documented custody, escort procedures, checklists, temporary storage, and disposition actions.

Applies to: The following type of LRUs, in Table 1. General LRUs, may require software upload prior to installation on aircraft.

Topics covered

  • Avionics line replaceable units
  • Classified data purge
  • Software upload requirements
  • LRU classification levels
  • Top Secret asset handling
  • Classified LRU temporary storage
  • Deployed operations

Questions and answers

What determines an LRU's classified data purge or software upload requirement?

The specific classified data purge or software upload requirement for each unit will depend on the type of unit, position in which it is installed, mission load, and failure mode. (paragraph 2)

What must happen if the software classification of an LRU cannot be determined after a flight?

If unable to determine the specific software classification after an aircraft flight, the LRU is to be handled at the highest classification level. (paragraph 3)

How must Top Secret LRUs be escorted?

Two personnel of appropriate clearance will escort the LRU to the CDP and remain in place until the LRU's custody is transferred to the CDP Engineer. (paragraph 3)

What checklist must maintenance personnel complete for an LRU requiring classified data purge?

Maintenance personnel will also complete the Classified Data Purge checklist. (paragraph 3)

Where are classified parts requiring classified data purge stored?

Classified parts requiring classified data purge will be stored in room 137 until they have been purged. (paragraph 3)

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