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Old Sep 24, 2023 | 3:47 pm
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lincolnjkc
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Originally Posted by mfirst
Now you have me really curious, please, elaborate if you know more details
Technically it is a combination of operator and individual airplane: The operator (e.g. United) needs to be granted ETOPS authority and then each individual ETOPS aircraft required approval and must meet certain maintenance provisions and there are limitations on how an aircraft can be dispatched on an ETOPS mission -- some of the specifics depend on the length of ETOPS operation (e.g. 120 minute ETOPS is a bit looser than 180 minutes which are a bit looser than 240 minute -- with the number of minutes being, roughly, maximum time from any point on the route to a suitable diversion airport)

The majority of the FAA's minimum requirements are in Part 121 Appendix P—Requirements for ETOPS and Polar Operations (https://www.law.cornell.edu/cfr/text...-P_to_part_121)

And the CAMP requirements for ETOPS operations are in 14 CFR 121.374 ( https://www.law.cornell.edu/cfr/text/14/121.374)

§ 121.374 Continuous airworthiness maintenance program (CAMP) for two-engine ETOPS.In order to conduct an ETOPS flight using a two-engine airplane, each certificate holder must develop and comply with the ETOPS continuous airworthiness maintenance program, as authorized in the certificate holder's operations specifications, for each airplane-engine combination used in ETOPS. The certificate holder must develop this ETOPS CAMP by supplementing the manufacturer's maintenance program or the CAMP currently approved for the certificate holder. This ETOPS CAMP must include the following elements:

(a) ETOPS maintenance document. The certificate holder must have an ETOPS maintenance document for use by each person involved in ETOPS.

(1) The document must—

(i) List each ETOPS significant system,

(ii) Refer to or include all of the ETOPS maintenance elements in this section,

(iii) Refer to or include all supportive programs and procedures,

(iv) Refer to or include all duties and responsibilities, and

(v) Clearly state where referenced material is located in the certificate holder's document system.

(b) ETOPS pre-departure service check. Except as provided in Appendix P of this part, the certificate holder must develop a pre-departure check tailored to their specific operation.

(1) The certificate holder must complete a pre-departure service check immediately before each ETOPS flight.

(2) At a minimum, this check must—

(i) Verify the condition of all ETOPS Significant Systems;

(ii) Verify the overall status of the airplane by reviewing applicable maintenance records; and

(iii) Include an interior and exterior inspection to include a determination of engine and APU oil levels and consumption rates.
Perhaps most interestingly, also:


(c) Limitations on dual maintenance.

(1) Except as specified in paragraph (c)(2), the certificate holder may not perform scheduled or unscheduled dual maintenance during the same maintenance visit on the same or a substantially similar ETOPS Significant System listed in the ETOPS maintenance document, if the improper maintenance could result in the failure of an ETOPS Significant System.
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