American Champion AM 7ECA Exhaust System Itemized Parts List
| Item | Part # | Description | Condition |
|---|---|---|---|
| 01 | A099001-189 | MUFFLER - INTERNAL BAFFLES REQUIRED | NEW PMA |
| 02 | A099001-120 | RISER - STRAIGHT - 5.5" IN LENGTH | NEW PMA |
| 03 | A0750161-25 | CLAMP SET WITH HARDWARE | NEW PMA |
| N/S | 4-873 | RH SHROUD WITH 2" PORT | OVERHAUL |
| N/S | 4-874 | RH SHROUD WITH 3" PORT | OVERHAUL |
| N/S | 77611 | CYLINDER GASKET WITH HARDWARE | NEW |
AD 79-22-01 Inspect exhaust system for cracks.
O-235 Lycoming
ACA now calls it the Citabria Aurora 118 HP.
Internal Baffles are required for mufflers to be aiworthy.