CFR
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91.503—Production line testing by the manufacturer.
(a)
Manufacturers of marine SI engines shall test production line engines from each engine family according to the provisions of this subpart.
(b)
Production line engines must be tested using the test procedure specified in subpart E of this part that was used in certification unless an alternate procedure is approved by the Administrator. Any adjustable engine parameter must be set to values or positions that are within the range recommended to the ultimate purchaser, unless otherwise specified by the Administrator. The Administrator may specify values within or without the range recommended to the ultimate purchaser.
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