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Personnel required for gaseous oxygen servicing

Aviation Mechanic General (AMG) practice question 8 of 26 on Ground Operations and Servicing. ACS element AM.I.F.K8 · difficulty: recall. Want to answer it in a timed quiz? Use the Aviation Mechanic General (AMG) practice mode.

Question bank updated 2026-09-22

QUESTIONHow many personnel are required to service an aircraft with gaseous oxygen?

  1. ATwo persons
  2. BOne person
  3. CThree persons
Show the answer and explanation

Correct answer: A. Two persons

  • A — correct The handbook requires two people: one at the control valves of the servicing equipment and one where the aircraft system pressure can be observed.
  • B — incorrect A single person cannot both operate the servicing valves and watch the aircraft system pressure, which is why two are required.
  • C — incorrect The handbook specifies two persons, not three.

BACKGROUND

Before servicing any aircraft with oxygen, the specific maintenance manual is consulted for the proper equipment. Two personnel are required to service an aircraft with gaseous oxygen: one is stationed at the control valves of the servicing equipment, and one is stationed where the pressure in the aircraft system can be observed. Communication between the two is required in case of an emergency. Oxygen is not to be serviced during fueling, defueling, or other work that could provide an ignition source, and servicing is accomplished outside hangars.

STUDY TIP

Know both the number of people and where each is stationed; either detail can be asked.

KEY POINTS

  • Two people are required for gaseous oxygen servicing.
  • One person works the servicing valves; the other watches aircraft system pressure.
  • Never service oxygen during fueling or defueling, and do it outside the hangar.

SOURCES

  • FAA-H-8083-30B ch01 "Oxygen Servicing Equipment"
Practice the Aviation Mechanic General (AMG) test →Timed 60-question exam, by ACS area, or review your misses. Free.
MORE ON GROUND OPERATIONS AND SERVICING

SkyDrill is not affiliated with the FAA. This is an original practice item based on FAA-H-8083-30B Aviation Maintenance Technician Handbook – General, 14 CFR part 43 and part 65. Regulations and handbooks are revised; confirm details against the current edition.