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Upskill / Aviation Standards and Regulations / What Part-145 is, Part 2: release, audits and approval

What Part-145 is, Part 2: release, audits and approval

How an approved organisation does the work, releases it, records it, and keeps its approval

By Aerospace Garage Desk · Introductory · 45 minutes · 24 narrated pages · Updated October 2026

What you will be able to do

  • ✓ Follow a maintenance task from the operator's work order, through planning and task cards, to the work itself and the handling of any defects found.
  • ✓ Explain who may sign a certificate of release to service, what it confirms, when it must not be signed, how incomplete work is handled, and how components are released on EASA Form 1.
  • ✓ Explain which maintenance records are kept, for how long and how they are protected, and how occurrences and internal safety reports are handled under a just culture.
  • ✓ Recognise the common causes of maintenance error, and explain error capture on critical tasks, independent inspection, shift handovers and tool control.
  • ✓ Explain compliance monitoring, safety risk management, the authority's oversight cycle, level 1 and level 2 findings, and what follows if they are not corrected.
  • ✓ Compare FAA Part 145 repair stations, the EU–US maintenance arrangements and dual release, UK Part-145 and the UAE and Indian 145 rules, and recap both parts of the course.

Course content

Session 1 · From work order to aircraft

2.1

  1. Accepting the work order · free preview
  2. Planning the work
  3. Doing the work, and what to do with defects
  4. From the investigation file: the fan cowls left unlatched on G-EUOE
Session 2 · Certificate of release to service

2.2

  1. The signature that ends the job
  2. When not to sign
  3. Open items and component releases
  4. Worked example: releasing an aircraft with a deferred defect and an open task
Session 3 · Records and reporting

2.3

  1. Maintenance records
  2. Reporting occurrences
  3. Internal safety reporting and just culture
  4. Worked example: two clocks after a crack is found
Session 4 · Human factors and critical tasks

2.4

  1. Why good people make mistakes
  2. Critical tasks and independent inspection
  3. Handovers and tool control
  4. Worked example: a control cable change and its independent inspection
Session 5 · Audits, findings and oversight

2.5

  1. Checking ourselves: compliance monitoring
  2. Looking ahead: safety risk management
  3. Authority oversight and findings
  4. Worked example: a level 2 finding from audit to closure
Session 6 · Beyond Europe

2.6

  1. FAA Part 145 repair stations
  2. The EU–US arrangements and dual release
  3. Other national rules, and the whole course in one view
  4. Worked example: checking a Form 1 and a dual release at goods-in

Who this course is for

Upskill courses are for professional development and are not approved by any aviation authority. Learner Terms

Course content © Aerospace Garage Limited. All rights reserved.