Recognising an ICAO standard in a foreign repair station approval
An ANAC team assesses whether to accept a foreign repair station as an approved maintenance organisation for work on Brazilian-operated aircraft. The station holds approval from its national authority for airframe and avionics work, and the national authority states that its rules are based on ICAO Annex 6 and Annex 8. The station's manual references 'ICAO standards' but does not distinguish between Standards and Recommended Practices. The team finds that the station's human factors training is a one-hour induction, that its occurrence reporting goes only to its own national authority and not to the operator, and that its record retention is 12 months, while the Brazilian requirement is longer for major repairs. The station argues that because it follows ICAO, it should be accepted without further conditions. The team must decide whether to accept, conditionally accept, or reject.
1. Explain the difference between ICAO Standards and Recommended Practices and why it matters for this assessment.
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ICAO Standards are binding on member States that have not filed a difference; Recommended Practices are desirable but not mandatory. A State's regulations implement these, and the State may file differences. The station's claim to 'follow ICAO' is therefore too vague: it does not show which provisions are implemented and which differences exist.
The assessment must compare the station's actual arrangements with the Brazilian requirement, not with a general reference to ICAO. The team should obtain the national authority's difference filings and the station's approval scope, then map each relevant requirement: maintenance program, human factors training, occurrence reporting, record retention, and quality system.
Accepting on the basis of an ICAO reference alone would be a failure of the equivalence assessment, because ICAO sets the framework, not the detailed compliance evidence.
2. Assess the three specific deficiencies: human factors training, occurrence reporting, and record retention.
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Human factors training: a one-hour induction is unlikely to meet the intent of human factors training requirements, which expect training on error management, fatigue, communication, and the organisation's safety culture, proportionate to the role. This is a deficiency requiring a structured program.
Occurrence reporting: reporting only to the national authority is insufficient for the operator's continuing airworthiness. The operator needs defect and occurrence information to manage its fleet, and the arrangement must ensure that information flows to the operator and, where required, to ANAC. This is a significant deficiency.
Record retention: 12 months is shorter than the Brazilian requirement for major repairs. The station must retain records for the required period and make them available to the operator and ANAC. This is a clear nonconformity.
Each deficiency should be documented with the specific requirement it fails, not just a general observation.
3. Recommend a decision and the conditions, explaining the reasoning.
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Conditional acceptance is the defensible decision, provided the deficiencies can be corrected and verified. Rejection would be justified only if the station refused to correct them or if the scope could not be verified.
The conditions should be:
- Submit a human factors training program meeting the applicable requirement, with records.
- Establish a documented occurrence and defect reporting path to the operator and to ANAC as required.
- Extend record retention to the required period, including retrospective records for work already done.
- Provide the national authority's difference filings and a mapping of its rules to the Brazilian requirement.
- Accept a follow-up audit before any work on Brazilian-operated aircraft beyond non-critical tasks.
The reasoning is that the station's approval is a starting point, not proof of equivalence. Acceptance must rest on verified evidence against each requirement, and the operator must be informed of the conditions.