Piper PA-34-200T Seneca II, Руководство по обслуживанию

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PIPER SENECA II SERVICE MANUAL
01/01/09 IV - STRUCTURES
1E25
4-62. STRUCTURAL REPAIRS.
WARNING: NO ACCESS HOLES ARE PERMITTED IN ANY CONTROL SURFACE.
WARNING: USE OF PATCH PLATES FOR REPAIRS OF ALL MOVABLE TAIL SURFACES IS
PROHIBITED. USE OF ANY FILLER MATERIAL NORMALLY USED FOR REPAIR
OF MINOR DENTS AND/OR MATERIALS USED FOR FILLING INSIDE OF
SURFACES IS ALSO PROHIBITED ON ALL MOVABLE TAIL SURFACES.
CAUTION: CONTROL SURFACE SKINS MUST BE REPLACED IF THEY SUSTAIN DAMAGE
OR EXHIBIT CRACKS.
Structural repair methods used must be in accordance with FAA Advisory Circular 43.13-1, latest
revision. To assist in making repairs, Figure 4-9 identifies type and thickness of various skin material
used. Never make a skin replacement or patch plate from material other than type of original skin, or of a
different thickness than original skin. Repair must be as strong as original skin. However, flexibility
must be retained so surrounding areas will not receive extra stress.
Repairs to areas defined in FAR Part 43, Appendix A, must be shown (using approved data) to not
diminish the Life of the component, if a life limit is stated herein (see Section I). Temporary repairs,
when required, must add Instructions for Continued Airworthiness (ICA) to the maintenance record. Any
such ICA must be based on approved data.
4-62a. METAL WIRE STITCHING REPAIR. (See Figure 4-8a.)
(PIR-PPS20024, Rev. A.)
CAUTION: METAL/WIRE STITCHING (AND THE ALTERNATE METHOD OF JOINING
DESCRIBED BELOW) SHALL ONLY BE USED FOR NON-STRUCTURAL, NON-
LOAD CARRYING APPLICATIONS.
A metal/wire stitching process is used to staple fabric and rubber seal materials to engine baffles and
some composite materials. The following alternate method of joining is approved for field use when
replacing these fabric and rubber seal materials.
Alternate (Rivet) Method of Joining.
1. Substitute two rivets in lieu of each staple where stitching was previously used or is specified.
Maintain a minimum of .75 inch spacing between rivets.
2. When materials being joined include Stainless Steel, Galvanized Steel or Steel, use:
a. MS20615M4 Rivet (Monel) and NAS1149CN432R Washer (See Figure 4-8a.)
b. Install with manufactured (factory) head against hardest material. Install washer against
opposite side of joint and upset rivet (bucktail) against washer.
3. When materials being joined include only aluminum and nonmetallic materials, use:
a. MS20470A4 Rivet and NAS1149DN432H Washer (See Figure 4-8a.)
b. Install with manufactured (factory) head against hardest material. Install washer against
opposite side of joint and upset rivet (bucktail) against washer.