Document ID: chunk:federal_register_of_legislation:F2006L01606:body:0:p2
Version: federal_register_of_legislation:F2006L01606
Segment Type: other
Provision Reference: 
Character Range: 2829–5443

rods, P/N AEL11750.

                 If the connecting rods are not ECi, P/N AEL11750, no further action is required.

                 If the connecting rods are ECi, P/N AEL11750, and if the serial number is 54/7 or higher, no further action is required.

                 Note 1:  54 is the lot number and 7 is the serial number of the ECi connecting rod.

                 2. If the connecting rods are ECi, P/N AEL11750, having forging P/N AEL11488 in raised letters on the web of the beam, and if the serial number is 54/6 or lower, do the following:

                   (a) If the connecting rod has 2,000 or more hours time-in- service (TIS), replace the connecting rod with a connecting rod that has a lot number 55 or higher, or that has a P/N not specified in this AD.

                   (b) If the connecting rod has fewer than 2,000 hours TIS, replace the connecting rod with a connecting rod that has a lot number 55 or higher, or that has a P/N not specified in this AD.

                 3. Do not install any ECi connecting rod, P/N AEL11750, that has SN 54/6 or lower into any engine.

              Note 2:  FAA AD 2006-10-21 Amdt 39-14604 dated 12 May 2006 refers.
Compliance:      1. Before further flight, after the effective date of this AD.

                   2. (a) Within 50 hours TIS after the effective date of this AD.

                   2. (b) At the next engine overhaul, or next accessibility of the connecting rod, but no later than 2,000 hours TIS on the connecting rod.

              For the purpose of this AD, connecting rod accessibility is defined as any maintenance action in which a cylinder assembly is removed for maintenance.

                 3. After the effective date of this AD.
              This Airworthiness Directive becomes effective on 31 May 2006.

Background:  The Airmotive Engineering Corp, Division of Engine Components Incorporated (ECi), holds the Parts Manufacturer Approval (PMA) for the affected parts, and markets the parts as ECi parts.  This AD requires replacing certain lot and serial numbered connecting rods, P/N AEL11750, having forging part number AEL11488.  This AD would also prohibit installing certain ECi connecting rods, P/N AEL11750, into any Lycoming 360 or 540 series reciprocating engines.  This AD results from reports of connecting rods with excessive variation in circularity of the journal bores.  The intent of this AD is to prevent fatigue failure of the connecting rod and a possible uncommanded shutdown of the engine.

James Coyne
Delegate of the Civil Aviation Safety Authority

24 May 2006