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Servicing aircrew Nuclear, Biological and Chemical (NBC) respirators and equipment

URN: SEMAER210
Business Sectors (Suites): Aeronautical Engineering Suite 2
Developed by: Enginuity
Approved on: 30 Mar 2017

Overview

This standard identifies the competences you need to carry out servicing activities on aircrew nuclear, biological and chemical (NBC) respirators and equipment, in accordance with approved procedures. You will be required to select the appropriate tools and equipment to use, based on the servicing activities to be carried out, and to check that they are in safe and serviceable condition. The servicing activities to be carried out will involve dismantling the equipment to the appropriate level, and cleaning the various parts using suitable solutions. You will carry out a thorough examination of the NBC equipment and associated parts, in line with the relevant schedule, identifying and replacing any `lifed' items, damaged, worn or defective parts. You will then reassemble the NBC equipment, make any required adjustments and, where appropriate, check and test the equipment operation and performance.

Your responsibilities will require you to comply with organisational policy and procedures for the servicing activities undertaken, and to report any problems with these activities that you cannot personally resolve, or that are outside your permitted authority, to the relevant people. You will be expected to work either with a high level of supervision or as a member of a team, and you will take personal responsibility for your own actions and for the quality and accuracy of the work that you carry out. Where team working is involved, you must demonstrate a significant personal contribution during the team activities in order to satisfy the requirements of this standard, and demonstrate competence in all the areas required by the standard.

Your underpinning knowledge will provide a sound basis for your work, and will provide an informed approach to applying the appropriate servicing techniques and procedures. You will have an understanding of the equipment being serviced, and its application, and will know about the servicing requirements and equipment used, in adequate depth to provide a sound basis for carrying out the activities to the required specification.

You will understand the safety precautions required when carrying out the servicing operations. You will be required to demonstrate safe working practices throughout, and will understand the responsibility you owe to yourself and others in the workplace.

Performance criteria

You must be able to:

  1. work safely at all times, complying with health and safety legislation, regulations, directives and other relevant guidelines
  2. follow the relevant servicing schedules to carry out the required work
  3. carry out the servicing activities within the limits of your personal authority
  4. carry out the servicing activities in the specified sequence and in an agreed timescale
  5. report any instances where the servicing activities cannot be fully met or where there are identified defects outside the planned schedule
  6. complete relevant servicing records accurately and pass them on to the appropriate person
  7. dispose of waste materials in accordance with safe working practices and approved procedures

Knowledge and Understanding

You need to know and understand:

  1. the specific safety precautions and procedures to be observed whilst carrying out the servicing of the aircrew NBC equipment (including any specific legislation, regulations or codes of practice relating to the activities, equipment or materials)
  2. the health and safety requirements of the work area in which you are carrying out the servicing activities, and the responsibility these requirements place on you
  3. the hazards associated with servicing aircrew NBC equipment, and how they can be minimised
  4. the personal protective equipment (PPE) that you need to use during the servicing activities, and where it can be obtained
  5. the servicing/maintenance schedules and specifications that are used during the servicing, and the importance of following the procedures listed in these documents (to include Urgent Technical Instructions (UTI), Satisfying Routine Technical Instructions (RTI), Maintenance Instructions (MI), Preliminary Warning Instructions (PWI) and Serious Defect Signals)
  6. the types of faults, defects or wear characteristics that are likely to occur with the NBC equipment
  7. how to determine when components require adjustment, repair or replacement
  8. the components to be replaced in the NBC equipment, and the method of replacement
  9. the importance of the correct securing and locking of connections
  10. how to identify the components to be used for the NBC equipment being maintained
  11. the quality control procedures to be followed during the servicing activities
  12. how to conduct any necessary checks to ensure that the equipment functions to specification
  13. the problems that can occur with the servicing of the NBC equipment, and the importance of informing appropriate people of any defects
  14. the importance of tool control, and the organisational tool control procedures to be used
  15. the tools and equipment used in the servicing activities, and their calibration/care and control procedures
  16. the importance of ensuring that, when the servicing is completed, the equipment is free from dirt, swarf and foreign objects (FOD)
  17. the disposal methods for waste and petrol, oil and lubricants (POL)
  18. the recording documentation to be completed for the activities undertaken and, where appropriate, the importance of marking and identifying specific pieces of work in relation to the documentation
  19. the extent of your own responsibility, and whom you should report to if you have problems that you cannot resolve

Scope/range

Scope Performance

​

  1. Carry out all of the following during the servicing of the aircrew NBC equipment:

    1. use the correct issue of the servicing or maintenance schedule
    2. adhere to procedures or systems in place for risk assessment, COSHH, personal protective equipment and other relevant safety regulations
    3. check the calibration dates of tools and equipment to be used
    4. use approved servicing and maintenance techniques at all times
    5. return all tools and equipment to the correct location on completion of the activities
    6. leave the work area in a safe and tidy condition

  2. Carry out all of the following servicing activities, using appropriate methods and techniques:

    1. dismantling equipment to an appropriate level (such as removal of velveteen cover and valves, ice guard, cover and filtration canisters)
    2. cleaning the equipment (such as respirator assembly and valves, drinking facility) using appropriate solutions
    3. monitoring the condition/deterioration of components

Plus three more from the following:
4. replacing all `lifed' components
5. replacing all damaged or defective components
6. reassembling the equipment
7. carrying out any required modifications to the equipment
8. carrying out adjustments to components and connections
9. checking equipment operation and performance
10. testing equipment in accordance with the relevant air publication (AP)

  1. Examine thoroughly the aircrew respirator/portable ventilator, to include checking all of the following:

    1. mask support and deflector plate, mask face-piece and mask tubing, for damage deterioration and security of attachment
    2. faceplate for abrasion, crazing at ports and housings, optical areas for blemish, faceplate sealing for security of bonding, and faceplate rip facility for bonded joints and security of rip release toggle
    3. all screws, nuts and fasteners for security of attachment
    4. nose occluder assembly, drinking facility for damage, puncture, cut or abrasion or deterioration of rubber
    5. chain toggle harness and chain harness - examine all links for damage and security of attachment
    6. inspiratory valve, ice guard filter, stepped expiratory valve, for deterioration and damage
    7. apron, neck seal, bellows and cowl for damage, deterioration and security of bonded joints
    8. manifold assembly, hoses and connectors for wear, damage, deterioration and security of attachment
    9. microphone lead assembly for damage, deterioration or fraying
    10. microphone switch for free movement without slackness
    11. portable ventilator case, cover, carrying strap and hose socket, for damage, wear and security of attachment, and electrical wiring for signs of overheating, dry/broken soldered joints and condition of battery
    12. canisters, canister mount seals, emergency inlet valve, and pressure relief valve for damage, deterioration, freedom of movement and security of attachment

  2. Replace a range of NBC equipment components, to include four of the following:

    1. ice guard                                    
    2. hood outlet and shut-off valve      
    3. protective sleeves
    4. inspiratory valve                          
    5. hood inlet adapter                       
    6. canister
    7. compensated expiratory valve      
    8. angled inlet adapter                     
    9. canister mount seals
    10. stepped expiratory valve             
    11. hood tube                                   
    12. battery
    13. velveteen cover                           
    14. mask tube                                   
    15. case
    16. microphone lead assembly          
    17. chain toggle harness                   
    18. cover
    19. mask                                          
    20. manifold                                      
    21. nut connecting cover

* *

  1. Carry out servicing requirements, in accordance with one of the following types of instructions:

    1. Urgent Technical Instructions (UTI)
    2. Satisfying Routine Technical Instructions (RTI)
    3. Maintenance Instructions (MI)
    4. Preliminary Warning Instructions (PWI)
    5. Serious Defect Signals

* *

  1. Carry out servicing work which complies with one of the following standards:

    1. Civil Aviation Authority (CAA)
    2. Ministry of Defence (MoD)
    3. Federal Aviation Authority (FAA)
    4. customer standards and requirements
    5. company standards and procedures

* *

  1. Complete the relevant servicing records, to include one from the following, and pass it to the appropriate people:

    1. service/maintenance schedule/log
    2. job cards
    3. aircraft service/flight log

Scope Knowledge

Values

Behaviours

​Additional Information

You will be able to apply the appropriate behaviours required in the workplace to meet the job profile and overall company objectives, such as:

  • strong work ethic
  • positive attitude
  • team player
  • dependability
  • responsibility
  • honesty
  • integrity
  • motivation
  • commitment

Skills

Glossary

Links To Other NOS

External Links

Version Number

2

Indicative Review Date

31 Mar 2020

Validity

Current

Status

Original

Originating Organisation

Semta

Original URN

SEMAER2-10

Relevant Occupations

Engineering, Engineering and Manufacturing Technologies, Engineering Professionals, Science and Engineering Technicians

SOC Code

5234

Keywords

Aeronautical; Engineering; nuclear; biological and chemical (NBC) respirators and equipment; policy and procedures; job cards; aircraft service/flight log