Section 30 Step Installation

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Page 30-2

Step 1:  Drill the F-1038 Step Support Block per the callouts in Figure 1.

Step 2: Deburr the edge of the WD-1007-L Step aw shown in Figure 2.

Step 3: Insert the round portion of the WD-1007-L Step into the WD-1008-L Step Mounting Bracket then slip the F-1038 Support Block over the end of the tube. Slide the support block inboard and rotate as required to flush the support block against the web of the F-1020-L Mid Baggage Rib.

Step 4:   Cleco the forward portion of the F-1022A-L Baggage Floor to the fuselage as shown in Figure 3. To keep the free end of the floor out of the way cleco the aft flange to the hol3s along the lower edge of the F-1034B Back Seat Brace, See section 29.

Step 5: Adjust the position of the F-1038 Support Block to make the round portion of the WD-1007-L Step  parallel to both the upper edge  and web of the F-1005A Rear Spar  Bulkhead. Match-Drill #12 at least two of the holes drilled in Step 1 into  the F-1020-L Mid Baggage Rib.

Temporarily bolt these holes to the mid baggage rib. Remove the step and match-Drill #12 the remaining holes.

Step 6:  Remove the F-1022A Baggage Floor. Mark the top, aft and outboard face in the F-1038 Support Block as shown in Figure 4. Remove the support block. Deburr the holes in the F-1020-L Mid Baggage Rib.

Step 7:  Remove the WD-1007-L Step and set it aside. Bolt the F-1038 Support Bracket to the F-1020-L Mid Baggage Rib as shown in Figure 4.

Page 30-3

Step 1:  Adjust the span wise position of the WD-1007-L Step so the weld at the top of the step in flush with the F-1070-L Mid Side Skin as shown in Figure 1.

Step 2: Use the Dimension given in Figure 2 to set the proper sweep angle of the WD-1007-L Step. The dimension given is from the lower aft edge of the F-1004B Center Section Bulkhead Stub to the leading edge of the step (not the leading edge of the step end plate).

Step 3:  Once the sweep angle of the WD-F-1007-L Step has been set use the guide hole in Figure 3 to match-drill #30 through the step, WD-1008-L Step Mounting Bracket and F-1077 Mid Bottom Skin.

Step 4: Cleco the F-1022A-L Baggage Floor to the fuselage as shown in Figure 3. Match-Drill #30 from the bottom side of the aircraft through the baggage floor using the hole drill in Step 3 as a guide. Step 3 and this step provide pilot holes that can be enlarged to gain access to the step attach hardware in the future if the WD-1007-L Step needs to be replaced. It is OK to leave the #30 hole in the bottom of the aircraft as a drain holes.

Step 5: Remove the F-1022A-L Baggage Floor and final-drill#12 the holes drilled in Step 3. through just the WD-1008-L Mounting Bracket and WD-1007-L Step.

Step 6:  Remove the WD-1007-L Step  deburr all holes drilled in Step 3 through 5. Prime the step. Paint the step if desired.

Page 30-4

Step 1: Bolt the WD-1007-L Step to the WD-1008-L Mounting Bracket as shown in Figure 1.

Step 2:  Touch-up any primer that may have been scraped off the WD-1007-L Step.