GRUMMAN AA1A & AA1B Exhaust System Itemized Parts List
| Item | Part # | Description | Condition |
|---|---|---|---|
| 01 | A099001-137 | MUFFLER | NEW PMA |
| 02 | A099001-102 | RISER – STRAIGHT – 4.5″ OVERALL LENGTH | NEW PMA |
| 03 | A0750161-25 | CLAMP – RISER – 1.75″ – HALF – ORDER 2 FOR SET | NEW PMA |
| 04 | 503005-504 | SHELL – CARB HEAT – INBOARD | N/A |
| 05 | 503005-1 | SHELL – CARB HEAT – OUTBOARD – NO HOLES | N/A |
Details
3″ tailpipe with 6 straps
Check for loose muffler baffles by sticking a broom handle up the tailpipe to see if the baffles are attached to the muffler.
Lycoming O-235