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ac 91-006 srvsop - ICAO

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SRVSOP AC <strong>91</strong>-<strong>006</strong><br />

21 Subpart G) or equivalent documents). A LOA recognises the data supplier as one whose data<br />

quality, integrity and quality management pr<strong>ac</strong>tices are consistent with the criteria of DO-200A/ED-<br />

76. The database supplier of an operator must have a Type 2 LOA and its respective suppliers must<br />

have a Type 1 or 2 LOA. The CAA may <strong>ac</strong>cept a LOA issued to navigation data suppliers or issue its<br />

own LOA.<br />

6. AIRCRAFT MODIFICATIONS (DATABASE UPDATE)<br />

If an aircraft system necessary for Basic-RNP 1 operations is modified (e.g., change of<br />

software), the operator is responsible for validating the Basic-RNP 1 procedures, SIDs, and STARs<br />

with the navigation database and the modified system. This can be done without any direct<br />

assessment if the manuf<strong>ac</strong>turer confirms that the modification has no effect on the navigation<br />

database or on path calculation. If there is no such confirmation by the manuf<strong>ac</strong>turer, the operator<br />

must perform an initial validation of the navigation data with the modified system.<br />

26

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