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} Instructions A-3

Use with GLAP
Part # 2051

Piper PA-24, 30, and 39
STC'd 1 Piece Windshield Installation

STC Information
Materials Needed List
Installation Procedure
Other Pages:
Go to: Glues, Adhesives & Sealants Page
Go to: Trimming Instructions

This File as PDF:
26 KB

STC Number: Model Numbers
STC# SA208GL PA-24


Materials List:
  1. Windshield - part # as shown above.
  2. 4 pcs.  #4-1/4 PTA sheet metal screws.
  3. 11 pcs. MS27039-8R12 or AN-525-8R12 screws.
  4. 24 pcs. MS27039-8R8 or AN-525-8R8 screws.
  5. 35 pcs. AN 364-832 nuts.
            -    NOTE: the number of fasteners may vary between aircraft    -
  6. Bracket part # M-1003 or cover part # M-1002. as required.
  7. Sealant - dichromate putty or RTV 100% silicone rubber (NOT supplied)

Installation Procedure

  1. Remove Compass ( if mounted on center post ) and Outside Air Temp gauge (OAT).
  2. Remove old windshield by removing center outer strip and lower farings.  The windshield is removed by pulling it down from the upper channel.
  3. Remove side retainer strips by drilling out the rivets ( approx. 12 ea. side ).  This step may be done before removing old windshield if desired.
  4. Cover the top of the instrument panel to prevent foreign material from entering radios and instruments ( masking tape may be used to seal the top if desired ).
  5. If compass is to be located other than on center top of windshield remove center post and brackets by drilling out the rivets (see fig 1 below).  If compass is to be located center top of windshield drill out the bottom rivets and cut center post as shown on (see fig 2 below).
    Fig. 1
      Use this construction ONLY if the compass is not to be located at the top of the windshield
    Fig 2
    location of rivits to be removed
  6. Clean the old sealant from the windshield mounting area and carefully inspect and repair the mounting surface to remove nicks, burrs and distorted metal as required.
  7. Remove the edge of the protective paper as shown on Fig 3.
    Fig 3 

    Remove about 1 1/2 inces of paper from the edge (Both sides) and use masking toapt to hold the edges of the paper.  This Procedure will help prevent scratching on the Major part of the windshield
  8. Fit the new one piece windshield to the opening by trimming - use a disk sander or a belt sander - be careful not to remove too much material ( you can not put any back on, but you can always remove a little more ).  When the windshield fits properly, chamfer the edges so the contour fits the fairings nicely.  Mark and notch the 6 holes at the top ( See Fig 4)
    Fig 4
     Notch Detail Ref step 8
  9. Smooth all edges with fine sandpaper to remove all notches.
  10. Apply sealant to all mounting surfaces and reinstall windshield in opening.
  11. Reinstall lower outer fairing and side post retainers using the related hardware ( See fig 5 )
    Fig 5
     Side skins may be bent slightly to provide a tighter fit to the windshield
  12. Clean the excess sealant and windshield ( VM&P Naphtha or lighter fluid will not harm the Plexiglas but most other solvents will ).  Use a good grade of aircraft windshield cleaner to remove the thin film that will remain after cleaning the sealant with the VM&P Naphtha.
  13. Reinstall the O.A.T. - it may be installed thru the windshield but it is desirable to relocate it elsewhere.
  14. Reinstall compass as shown in Fig 6 or relocate as desired - A C2400L4P may be mounted on top of the instrument panel.
    Fig 6
    Compass mount relocation
  15. Repair painted areas as required.
  16. Fill out 337 form.
For instructions dealing with drilling holes in acrylic see Drilling and trimming instructions.


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