4.7.1 The air operator's existing reliability program must be supplemented as applicable to take account of ETOPS. The program should be designed with early identification and prevention of ETOPS related problems as the primary goal as well as ensuring that the minimum ETOPS reliability levels are maintained. The program should be event-oriented and incorporate reporting procedures for significant events detrimental to ETOPS flights. This information will be readily available for use by the air operator and the PMI to help establish that the reliability level is adequate, and to assess the air operator's competence and capability to safely continue ETOPS Operations. An ETOPS reporting program will be established by the air operator to ensure that the PMI is notified at least monthly, or more often if events reportable through this program are identified.
4.7.2 The air operator must also ensure that procedures are established and implemented that will roll back the approved ETOPS diversion time should the engine in flight shutdown rate exceed the limits specified in AppendixA of this document. The air operator's "person responsible for the maintenance control system" (PRM) must have the authority to initiate roll back of the approved ETOPS diversion time.
4.7.3 Where reliability data indicate that the "target criteria" per AppendixA of this document, Figure1, are no longer being met, the air operator must notify their PMI of the corrective measures taken. Where the "minimum criteria" are no longer being met, the air operator must roll back the ETOPS diversion time to that specified in the Appendix for the particular IFSD rate noted. If required, the PMI will consult with AARDD/P for interpretation and/or guidance on a case by case basis.
4.7.4 Failure of an air operator to roll back the maximum diversion time when required will constitute grounds for removal of ETOPS authority.
4.7.5 The following items will be included in the reporting program:
- in-flight shutdowns or flameouts;
- diversion or turn-back;
- uncommanded power changes or surges;
- inability to control the engine or obtain desired power;
- problems with systems critical to ETOPS (engine bleed air, pressurization, electrical power, etc.).
4.7.6 The report will also identify the following:
- aircraft identification;
- engine identification (make and serial number);
- total time, cycles and time since last shop visit;
- for systems, time since overhaul or last inspection of the defective unit;
- phase of flight; and
- corrective action.
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