SPANGDAHLEMABI21-128 — Aircraft Liquid Oxygen Servicing Unit Control Procedures

SPANGDAHLEMABI21-128 governs accountability, issuing, storage, servicing, and safety procedures for aircraft liquid oxygen servicing units.

Search SPANGDAHLEMABI21-128

  • Publication number: SPANGDAHLEMABI21-128
  • Title: AIRCRAFT LIQUID OXYGEN SERVICING UNIT CONTROL PROCEDURES
  • Date: 2024-04-30

View SPANGDAHLEMABI21-128 on armypubs.army.mil


The publication assigns duties for cryogenic storage, ready and hold lines, low-use trailers, emergency fills, and servicing operations. It requires safe, functional equipment, qualified operators, protective equipment, and a two-person safety policy.

Applies to: This instruction applies to all authorized Aircraft Maintenance Units (AMU), 726th Air Mobility Squadron (AMS), support equipment maintenance organizations, and all transient alert personnel on Spangdahlem Air Base.

Topics covered

  • Aircraft liquid oxygen servicing units
  • Cryogenic storage
  • Low-use trailer servicing
  • Emergency servicing
  • Servicing safety personnel
  • Personal protective equipment

Questions and answers

Who may operate aircraft liquid oxygen servicing equipment?

Only properly qualified individuals will operate servicing equipment.

What must users check before operating servicing equipment?

The user will ensure servicing equipment is safe and functional prior to operation.

What lines must the Cryogenics Section maintain for aircraft LOX servicing units?

Establish and maintain a “ready line” for serviceable aircraft LOX servicing units. (paragraph 1)

When must a low-use trailer be filled before servicing aircraft?

When to fill a low use trailer- a low use trailer shall be filled before servicing aircraft if it was not filled during the past two calendar days. (paragraph 1)

What safety policy applies during aircraft LOX unit servicing?

A two-person safety policy will be observed during all aircraft LOX unit servicing.

Ask Reggie.Bot a question about SPANGDAHLEMABI21-128