Service Instruction No. 1521

Reprint of Precision Service Information Letter No. SIL RS-35 Revision 1

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DATE: November 19, 2008

MODELS AFFECTED

All Lycoming new, overhauled, rebuilt, or repaired (L)IO, AIO, HIO, IGO, IVO, (L)TIO, AEIO series engine with either a Precision Airmotive RS or RSA series fuel injection servo.

TIME OF COMPLIANCE

Same as required for Precision Airmotive Service Information Letter No. SIL RS-35 Revision 1.

This reprint is current at the time Lycoming Service Instruction No. 1521 is issued. However, when complying with this Service Instruction, insure that compliance is in accordance with the latest revision of Precision Service Information Letter No. SIL RS-35.

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