Receiving Inspection of Aircraft Parts under 145.A.42

Start with the item in front of you

A delivery can contain a component, standard parts, consumable material and a calibrated tool. They need different evidence. Use the Avioverse Receiving inspection form when an item arrives, while its packaging, identification and accompanying documents can still be examined together.

The maintenance data and performance guide explains the classifications in 145.A.42(a). This guide follows the physical receipt and the decision about what happens next.

Inspect the delivery and its evidence together

GM1 145.A.42(b)(i)(c) gives typical physical checks: damage to the item or packaging, shelf-life expiry, packaging appropriate to the item, and protective plugs and caps. It specifically includes packaging for electrostatic sensitive devices where necessary. It also warns that adhesive residues from tape used over electrical connections or fluid openings can cause contamination or insulation problems.

Make the check against the actual item. An intact outer carton does not settle whether an inner package is damaged, the shelf life has expired or a required cap is missing. Record any discrepancy and the evidence needed to resolve it. Storage instructions collected at receipt also help the storekeeper put the item in the right conditions; ongoing checks are in the parts storage guide.

For batches, GM1 145.A.42(b)(i)(d) describes the specification or standard, part number, batch and quantity on the packaging, with those details and manufacturing sources in the accompanying documentation. GM1 recommends acceptance documentation for each batch when material is acquired from different batches. Compare the physical identifiers with the documents before treating a delivery as one batch.

The component release guide explains the document acceptance routes. Selecting a document name in the form records what was received; it does not establish that the document meets the applicable criteria for that item.

Customer-supplied items and calibrated tools

A customer-supplied component goes through the receiving decision too. Appendix IV to AMC1 CAMO.A.315(c), point 2.12, says the maintenance contract should identify who supplies parts and make clear the maintenance organisation's responsibility for the component meeting the relevant data or standard and being in satisfactory condition for installation.

Use the customer's statement of modification and airworthiness directive information as an evidence reference. Check the supporting records and record the inspection result independently. For example, ExampleAir's CAMO can provide a component's supporting history to ExampleMRO; the receiving inspector still resolves a serial-number mismatch. The operations team can use the resulting hold decision when planning aircraft availability.

For a calibrated tool, use the tool branch of the form. Under 145.A.40(b), the relevant duty is appropriate control and calibration to an officially recognised standard, at a frequency ensuring serviceability and accuracy, with calibration and traceability records retained. Match the record to the individual tool and check its interval under the organisation's procedure. A laboratory's accreditation claim alone does not supply that evidence. The tool-control guide covers the register and calibration management.

Why the form asks what it asks

The form groups a receipt into evidence that can be checked and a decision that can be followed. Its questions are shown below the guide; use these reasons to decide what a meaningful answer needs.

Identity and delivery references connect the object on the bench to its order, supplier and records. Serial numbers distinguish individual components; batch and quantity distinguish material lots. The conformity and traceability requirements for standard parts and materials are in 145.A.42(a)(iv)–(v). Using one response per identifiable item or homogeneous batch is a practical way to keep that connection clear, rather than a prescribed form format.

Customer and supplier information establishes where the evidence came from. The customer statement helps the inspector find the supporting history. The supplier-acceptance answer records whether the supply meets the organisation's evaluation procedure, which AMC1 145.A.42(b)(i)(b) includes within acceptance. The supplier evaluation guide explains that wider review.

Condition, release and technical history help establish whether the item meets the applicable 145.A.42(a)–(b) criteria. The modification and airworthiness directive prompts bring relevant evidence into the review; an unchecked declaration is not a resolved discrepancy. A missing document or uncertain condition needs an explanation and a decision, not an assumed positive answer.

Packaging, shelf life and protection turn the typical checks in GM1 145.A.42(b)(i)(c)–(d) into a recorded inspection. They explain why a correct part number and a release document can coexist with a damaged, expired or poorly protected item. Storage requirements tell the next person how its condition must be preserved.

Calibration evidence serves the separate 145.A.40(b) duty for tools. Use it where relevant and explain a Not applicable answer for an item outside that branch.

Identification, result and remarks tell stores whether the item can enter usable stock or needs controlled segregation and a further decision. They support 145.A.42(c)'s segregation of unserviceable and unsalvageable components. Remarks should identify the discrepancy, evidence reference and unresolved condition so another person can act on them.

Accept, quarantine or reject

Use Accepted when the relevant receiving conditions have been resolved. Use Quarantined – awaiting decision while an uncertainty remains. Use Rejected when the receiving decision is negative, with its reason and disposition recorded. These are the form's practical recording choices.

145.A.42(c)(i) requires segregation of unserviceable and unsalvageable components from serviceable components, standard parts and materials. Point (c)(ii) prevents unsalvageable components re-entering the supply system unless the stated life-extension or repair conditions are met. Keep an unresolved receipt identifiable and controlled while deciding its classification and disposition.

That is why accepting a delivery does not settle the later installation decision. Match the intended installation to the applicable maintenance data as well as the item's condition and acceptance evidence.

In Avioverse, assign the form's written Quarantine decision follow-up to the maintenance manager who is a workspace member. Record the disposition, conditions, responsible person and evidence of action. The assignee records Approve or Request changes with a comment, or Not required with a reason when no follow-up is needed. That comment records the decision; it does not automatically release a component for installation. Suppliers and customers outside the workspace do not complete the form or its assigned step.

Where to read it yourself

The source is 145.A.42, AMC1, GM1 and GM3 145.A.42(b)(i), 145.A.40(b), and Appendix IV to AMC1 CAMO.A.315(c), point 2.12, in the EASA Easy Access Rules for Continuing Airworthiness, 2025-09-02 revision. Continue with supplier evaluation for the supply relationship and parts storage for the item after receipt.