2023 SCBA Course – Airpack Cylinder and Administration


Classroom 1

Experiential and Constructive Learning Environment: Air Cylinder

Terminal Objective: Each firefighter will receive instruction regarding the construction type, valve type and use, capacities, maintenance requirements, filling and logging procedures, storage, and fireground and training use of the Worthington Industries SCBA cylinders to be used with the Scott AP50 4.5 airpacks.

Enabling Objectives: As listed below


  1. Describe the specific construction materials and capacities of the Worthington Industries 30-minute carbon fiber SCBA cylinder.
  2. Describe the Scott valve and how it differs from the Survive Air valves currently in use.
  3. Perform Visual checks of cylinders for damage or faults which are a requirement each day and when filled.
  4. Review the Cozumel Fire Department Cylinder filling and inspection log.
  5. Define what pressure in psi a full cylinder is required to be showing (4500 psi) on the cylinder valve gauge in terms of storage or use on the apparatus, and during incidents which requiring refilling of cylinders.
  6. Full cylinder is 4500 psi.  Can drop to 4000 as the cylinder is checked each day over a period of time during daily checks. 
  7. Daily check cylinder pressures below 4000 psi require a replacement bottle and the cylinder removed to be filled. 
  8. Logging of cylinders each time they are filled: Any cylinder filled should be logged in a filling station log with serial number of the cylinder, date, and any observations relating to the cylinder.
  9. Explain why slow filling is desired to limit heat and resulting low cylinder pressures when cool. Filling of cylinders should not have hot cylinders when complete as the air pressure will lessen once the air cools. 
  10. All low cylinders should be filled daily and stored as available with spares at station 1 station 2. 
  11. Discussion: Determine who fills cylinders at station 2 and what the current process is.
  12. Establish filling best practices through discussion and final outline to be submitted to the fire chief for approval.
  13. Review with students for lessons learned and questions.
  14. Evaluation in the form of instructor’s observations of each student’s proper understanding and use, documenting, filling, and storing SCBA cylinders. Each student will perform a cylinder inspection, describe filling procedures, and install and remove cylinders from a SCBA with 100% efficacy.


Consulting: Business, Emergency Services, Education, Philanthropy