27.19. Welding, Cutting and Brazing Checklist.

  • 27.19.1. Are only approved apparatuses purchased for use? Reference 27.2.1

  • 27.19.2. Do personal protective clothing and equipment meet or exceed the requirements of Chapter
    14, Personal Protective Equipment (PPE)? Reference 27.2.3

  • 27.19.3. Are contractors advised that they must comply with appropriate fire, safety and health
    requirements when welding, cutting or brazing on Air Force facilities? Reference 27.2.4

  • 27.19.4. Are acetylene cylinders used and stored in an upright position? Reference 27.3.1

  • 27.19.5. Is the fuel gas and oxygen supply to the torch shut off when left unattended or not used for
    extended periods of time, i.e., when left unattended for 30 minutes or more? Reference 27.3.3

  • 27.19.6. Are welders aware that welding on concrete floors may cause the concrete to spall and
    produce projectiles? Reference 27.3.9

  • 27.19.7. Are welders provided appropriate fall protection when working on elevated surfaces?
    Reference 27.3.10

  • 27.19.8. Does the welding operation supervisor ensure installed fire protection sprinkler systems are
    operational before the welding operation begins, or, if not, ensure other means of fire detection,
    reporting and extinguishing have been approved by the installation FES Flight? Reference

  • 27.19.9. Are welding hoses visually checked for damage once a shift, before each use? Reference

  • 27.19.10. Are warning signs posted to prevent personnel from inadvertently touching hot items when
    left unattended? Reference 27.4.4

  • 27.19.11. Have workers and other personnel adjacent to the welding areas been protected from
    radiant energy or spatter by use of noncombustible and/or flameproof screens? Reference

  • 27.19.12. Are walls, screens, and non-rigid heat and spark barriers finished to limit reflectivity?

  • 27.19.13. Have procedures been established to prevent personnel from entering an inside welding
    area and inadvertently being exposed to welding hazards? Reference

  • 27.19.14. Where floors have been wet down or damp sand applied, have rigid controls been
    established to ensure proper grounding of equipment, and are personnel protected from possible
    electrical shock? Reference

  • 27.19.15. Is a fully charged and operational fire extinguisher, appropriate for the task, kept in the
    work area at all times? Reference

  • 27.19.16. Are welding operations roped off or segregated by physical barriers to prevent
    unauthorized entry into the area? Reference

  • 27.19.17. Are outside welding operations placarded to warn bystanders that welding operations are
    in progress? Reference

  • 27.19.18. Has a written permit been obtained from the installation FES Flight prior to the start of
    welding operations? Reference

  • 27.19.19. Whenever welding activities are within 35 feet of combustible materials, are firewatcher
    procedures implemented? References and

  • 27.19.20. Has a fire watch been assigned to monitor the operation for 30 minutes after completion of
    cutting or welding operations, to detect and extinguish possible smoldering fires? References and

  • 27.19.21. Is the welding operation environment free of flammable liquids and vapors? Reference

  • 27.19.22. While welding and cutting operations are being performed, is fire extinguishing equipment
    available and ready for use? Reference

  • 27.19.23. Are approved flash arresters installed between each cylinder and the coupler block when
    acetylene cylinders are coupled? Reference 27.6.2

  • 27.19.24. Has backflow protection been provided that shall prevent oxygen from flowing into the
    fuel-gas system or fuel from flowing into the oxygen system? Reference 27.6.3

  • 27.19.25. Has flashback protection been provided by an approved device? Reference 27.6.4

  • 27.19.26. Has back-pressure protection been provided by an approved relief device, set at a pressure
    not greater than the pressure rating of the backflow or flashback device, whichever is lower?
    Reference 27.6.5

  • 27.19.27. Are clearly marked master shutoff valves provided for installed systems at points which
    are readily accessible? Reference 27.6.7

  • 27.19.28. Does clothing provide sufficient coverage to prevent skin burns? Reference 27.7.1

  • 27.19.29. Are front pockets and upturned sleeves or cuffs prohibited? Reference 27.7.1

  • 27.19.30. Are flame resistant gloves, in good condition, used to protect welder‘s hands? Reference

  • 27.19.31. When additional protection is needed, are durable flame-resistant aprons made of leather
    or suitable materials provided to protect the front of the body? Reference 27.7.3

  • 27.19.32. For heavy work, are flame-resistant leggings or other equivalent means used to give added
    protection to the legs? Reference 27.7.4

  • 27.19.33. When necessary, are cape sleeves or shoulder covers used during overhead welding,
    cutting or other operations? Reference 27.7.5

  • 27.19.34. When necessary, are flame-resistant caps worn under helmets to prevent head burns?
    Reference 27.7.6

  • 27.19.35. Is only approved respirator equipment used when working in atmospheres of hazardous
    concentrations of airborne contaminants? Reference 27.7.7

  • 27.19.36. Do all welding helmets meet 29 CFR 1910.252, Welding, Cutting, and Brazing - General
    Requirements, requirements? Reference

  • 27.19.37. When two or more welders are exposed to each other's arc, are filter lens goggles worn
    under the welders‘ helmets to protect them from the harmful rays? Reference

  • 27.19.38. Are goggles or other suitable eye protection used during all gas welding or oxygen cutting
    operations? Reference

  • 27.19.39. Is eye protection in the form of suitable tinted goggles or spectacles provided for brazing
    operations? Reference

  • 27.19.40. Are workers trained to arrange helmets to protect the face, neck and ears from the arc's
    radiant energy? Reference

  • 27.19.41. Are ventilated goggles used to prevent fogging of the lenses? Reference

  • 27.19.42. Are hand-held shields, designed to shield the face and eyes, prohibited from use?

  • 27.19.43. Does the commander ensure workers who handle, use or are potentially exposed to
    hazardous materials provided training IAW the AFHCP? Reference 27.8.2

  • 27.19.44. Do welders check gas line connections after assembly and before lighting the torch?
    Reference 27.9.1

  • 27.19.45. Is the tungsten-arc welding machine's power supply always disconnected before changing
    electrodes? Reference 27.10.5

  • 27.19.46. Are welders trained to never change tungsten-arc electrodes with bare hands or wet
    gloves? Reference

  • 27.19.47. Is welding on aircraft accomplished outside of hangars whenever possible? Reference

  • 27.19.48. Does the welding supervisor ensure the senior flight line supervisor is thoroughly briefed
    on the planned welding operation? Reference

  • 27.19.49. Prior to the start of welding operations, are fuel tank and engine fuel vents closed/plugged
    on any aircraft within 50 feet of the welding operation? Reference

  • 27.19.50. Does the welder rope off or segregate the welding operation by a physical barrier prior to
    starting the welding operation? Reference

  • 27.19.51. Is the fireguard informed to stop the welding operation if a hazardous condition develops?

  • 27.19.52. Do aircraft welding operations performed in hangars conform to the requirements of
    Chapter 6 of this standard and NFPA 410, Standard on Aircraft Maintenance? Reference

  • 27.19.53. Has the tank, cylinder, or other container which is to be cut, welded or have other hot work
    performed on it been purged or inert? Reference

  • 27.19.54. Are new containers inert or purged prior to cutting, welding or other hot processes being
    applied to it? Reference

  • 27.19.55. Are welding or cutting operations only conducted in vehicle maintenance approved by the
    installation FES Flight? Reference 27.12

  • 27.19.56. Does maintenance shop supervision evaluate each welding or cutting task to determine if
    batteries need to be removed or fuel tanks require removal and/or need to be made inert? Reference

  • 27.19.57. Do cylinders of compressed gas have pressure-reducing regulators installed? Reference

  • 27.19.58. Are oxygen cylinders and fittings kept free of grease and oil at all times? Reference

  • 27.19.59. Have circuits been de-energized before testing? Reference 27.14.1

  • 27.19.60. Are power cables and electrode holders inspected prior to every use? Reference 27.14.4

  • 27.19.61. Before starting operations, has the work lead been firmly attached to the work? Reference

  • 27.19.62. Have cables with damaged insulation or exposed conductors been repaired or replaced?

  • 27.19.63. Are electrode holders, when not in use, placed where they cannot make electrical contact
    with personnel, conducting objects, fuel or compressed gas cylinders? Reference 27.15.4

  • 27.19.64. Does the welding supervisor ensure all welders meet the requirements of Chapter 23,
    Confined Spaces, prior to entry into confined spaces? Reference 27.17.1

  • 27.19.65. Has a written permit (AF Form 592) been obtained from the FES Flight, with
    coordination by the installation Ground Safety office and BE, prior to starting welding operations in
    a confined space? Reference 27.17.1

  • 27.19.66. When welding or cutting operations are conducted in confined spaces, is there adequate
    ventilation to prevent the accumulation of toxic materials or possible oxygen deficiency? Reference

  • 27.19.67. Before operations are started, is heavy portable equipment mounted on wheels securely
    blocked? Reference 27.17.2

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