AD/TURBO/1 - Roto-Master (Rajay Industries, Inc.) Turbochargers - Inspection and Replacement (Cth)

Turbochargers

AD/TURBO/1 Roto-Master (Rajay Industries, Inc.) Turbochargers - Inspection and Replacement

3/83

Applicability: Rajay Model 325E10 and 3AT6EE10J2 turbochargers, installed on but not limited to: Continental Engine Models TSIO-360, O-470, IO-470, IO-520, TIO-520; Lycoming Engine Models O-320, IO-320, LIO-320, O-360, IO-360, TO-360, O-540, IO-540, TIO-540. These engines are installed on, but not limited to the following Aircraft: Piper PA-28R-201T, PA-28-RT-201T, PA-28-201T series; PA-34-200, PA-34-200T series; PA-30 and -39 series; Mooney M-20A thru K series; Lake LA-4, LA-4A and LA-200 Series.

Requirement: PART 1: Inspect the engine turbocharger exhaust systems and determine whether or not the turbine housing Rajay P/N TC-60-11 or Rajay P/N 600510, 600510-01, 600510-02 or TCM P/N 643930 of turbocharger model 325E10 or 3AT6EE10J2 is installed.

PART 2: If any of the part numbers listed in Part 1 are installed, or if the turbine housing part number cannot be determined, carry out the following inspections:

(a) Remove the turbocharger turbine housing exhaust coupling V-Band and tailpipes (see Figure 1).

(b) Visually inspect the turbocharger turbine housing for cracks using a dye penetrant inspection method.

Note: The suspect area can be viewed through the exhaust port to ascertain possible presence of cracks penetrating through the outer wall as shown in Figure 2.

(c) Inspect coupling V-Band clamp for cracks by spreading the band segments and checking for failed spot welds and for indication of exhaust flanges bottoming in coupling V-Band (see Figure 1) and clamp bolt for bending, overstress, thread damage, and cracks (see Figure 1).

(d) Inspect turbochargers and tailpipe flanges for cracks and distortion (see Figure 1). Remove all carbon deposits from mating flanges before reassembly.