Cessna 172

Lycoming O-320 150 HP Engine


Item #

Part #

Description

1

1754010-1

Riser OEM Cylinder #1

1

K1754010-1

Riser Cylinder #1 Knisley FAA / PMA

2

1754009-1

Riser OEM Cylinder #2

2

K1754009-1

Riser Cylinder #2 Knisley FAA / PMA

3

1754007-1

Riser OEM Cylinder #3

3

K1754007-1

Riser Cylinder #3 Knisley FAA / PMA

4

1754008-1

Riser OEM Cylinder #4

4

K1754008-1

Riser Cylinder #4 Knisley FAA / PMA

5

1754001-23

Muffler 13'' Tailpipe (no internal baffles)

5

K1754001-23

Muffler 13'' Tailpipe (no internal baffles) Knisley FAA / PMA

5

A1754001-23

Muffler 13'' Tailpipe (no internal baffles) AWI FAA / PMA ***

5

1754001-15

Muffler 13'' Tailpipe (with internal baffles)

5

1754001-25

Muffler 16'' Tailpipe (no internal baffles)

5

K1754001-25

Muffler 16'' Tailpipe (no internal baffles) Knisley FAA / PMA

5

A1754001-25

Muffler 16'' Tailpipe (no internal baffles) AWI FAA / PMA ***

5

1754001-9

Muffler 16'' Tailpipe (With internal baffles)

6*

9954100-3

Muffler Shroud (One Piece)

7*

0554001-5

Muffler Shroud (Two Piece)

8*

0552232-1

Carb Heat Box 2'' Diameter Hose Connection

8*

1750011-4

Carb Heat Box 2-1/2'' Diameter Hose Connection

9*

0750161-25

Riser Clamp Half (requires two per connection)

10*

2-hole Lycoming 77611

Exhaust Gasket (requires 4)

*Items not shown

*** 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)