Item # |
Part # |
Description |
1 |
9954100-7 |
Riser OEM Cylinder #1 |
2 |
9954100-6 |
Riser OEM Cylinder #2 |
3 |
9954100-4 |
Riser OEM Cylinder #3 |
4 |
9954100-5 |
Riser OEM Cylinder #4 |
5 |
9954100-9 |
Muffler 15'' Tailpipe (no internal baffles) |
5 |
A1754001-23 |
AWI FAA / PMA Muffler certified for use on R-S model aircraft 100% 321 SS |
5 |
K1754001-23 |
Knisley FAA / PMA Muffler certified for use on R-S model aircraft 100% 321 SS |
6* |
9954100-3 |
Muffler Shroud (One Piece) |
7* |
0554001-5 |
Muffler Shroud (Two Piece) |
8* |
0750161-25 |
Riser Clamp Half (requires two per connection) |
9* |
2-hole Lycoming 77611 |
Exhaust Gasket (requires 4) |
*Items not shown
Cessna 172R Comply within the next 50 HRS ''TIS''
AD 98-02-05 Aircraft equipped with Aeroquip Muffler P/N 00624-NH4000011-10 & 71379 0554011-2 Must be replaced due to Carbon Monoxide contamination potential.
Muffler Outer rings stamped ''PT'' & ''PTT'' are NOT Areoquip mufflers.
*** AD2018-02-04 Effective February 21 2018***
AWI Mufflers P/N A1754001-23 & A1754001-25
Cracks found around U collar attachment to skin casing, possible carbon monoxide contamination into cockpit.
Affected AWI serial numbers AWI P/N A1754001-23 (33553-33557) (34728-35322) (35322-35329) (35670; 38481-38485) (38584-38586) (38723-38727)
Affected AWI serial numbers AWI P/N A1754001-25 (32795-32800) (33558-33569) (33779-33790) (34636-34653) (34968-34984) (35159-35176) (37903-37906) (38174-38193) (38502-38506) (38566-38575) (38817-38836)