Piper Aircraft Corporation Malibu Mirage PA-46-350P, Airplane Maintenance Manual

Page: 1539 / 1956

PAGE 7
Feb 28/07 7K21
81-20-00
PIPER AIRCRAFT, INC.
PA-46-350P, MALIBU MIRAGE
MAINTENANCE MANUAL
Adding Intercooler Clips to Left Engine Baffle
Figure 3
Effectivity
4636001 thru 4636194 only
B. Intercooler Attachment Clips Inspection/Replacement ( S/N’s 4636001 thru 4636194 only. )
The factory installed clips which hold the intercoolers to the engine baffles in these aircraft may
occasionally fracture. An improved intercooler clip (P/N 89082-005) is available and should be
installed as required to provide longer service life. Additionally, flange support shims (P/N 89082-
010) should be installed on both intercoolers and two more intercooler clips should be added to the
left intercooler (See latest revision Piper Service Letter No. 1018).
To coincide with any event inspection or at owner/operator discretion:
(1) Remove the engine cowling.
(2) Remove and inspect the left and right intercooler clips for evidence of cracks or damage.
(3) Replace any damaged intercooler clips, as required, with the improved P/N 89082-005 clips.
(4) Install four flange support shims (P/N 89082-010), one under each intercooler flange as shown
in Figure 2. Ensure that the radius side of the shim faces the intercooler flange.
(5) Install intercooler clips and tighten screws to standard torque.
NOTE: When installing the clips, tightening the screws will tend to twist the clip leaving gaps.
Ensure that the flat side of the intercooler hold down clip lays flat against the
intercooler wall with no gap visible on either side of the clip.
(6) On the left (pilot’s side) intercooler, install two new clips (P/N 89082-005) in between the
existing clips as shown in Figure 3. Locate the existing holes in the engine baffle (see Figure 4)
and drill a .191 inch hole through the intercooler flange at those locations.
(7) Re-install the engine cowling and make an appropriate logbook entry.