WHITEMANAFBI91-109 — B-2 Dock Operations

WHITEMANAFBI91-109 governs B-2 dock operation procedures and policies, including aircraft servicing, equipment use, and facility safety.

Search WHITEMANAFBI91-109

  • Publication number: WHITEMANAFBI91-109
  • Title: B-2 DOCK OPERATIONS
  • Date: 2022-04-14

View WHITEMANAFBI91-109 on armypubs.army.mil


It covers motorized hangar doors, electrical pit power, CASS, fueling, compressed air, nitrogen, fall arrestors, hoists, grounding, lighting, and facility access. It also establishes operating restrictions, emergency eye wash requirements, and procedures for ventilation, temperature control, and vapor detection.

Applies to: This instruction applies to all individuals that are involved with the 509th Bomb Wing (509 BW) docks approved for the B-2 aircraft, including Air National Guard (ANG), except where otherwise noted.

Topics covered

  • Motorized hangar doors
  • Electrical pit power
  • CASS low point pits
  • Refuel and defuel operations
  • Compressed air and vacuum systems
  • Nitrogen servicing systems
  • Fall arrestor systems
  • Dock and hangar operating restrictions

Questions and answers

Is hearing protection required near operating hangar doors?

Hearing protection is required within 10ft of operating hangar doors. (paragraph 91-203)

How far must hangar doors be opened?

Hangar doors shall be opened a minimum of 10ft. (paragraph 91-203)

Who is authorized to operate the hangar doors?

Only qualified personnel approved by the squadron commander or designated representative will be authorized to operate the hangar doors. (paragraph 91-203)

When must CASS not be used because of water in the pit?

Signs of water at or above the lower grate indicate the sump pump is not working efficiently; CASS will NOT BE USED. (paragraph 6)

When is eye protection required for compressed air systems?

Eye protection shall be worn while making and breaking of any compressed air connection or when compressed air is used for cleaning. (paragraph 1-14)

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