AIRCRAFT MAINTENANCE MANUAL
DFE-AMM-AR1
Rev. 1 – 07/24/2014
3-6
3.3.2. Instructions for Authorized Maintenance, Repair or Alterations
3.3.2.1. Wing to Fuselage Assembly
The wing assembly procedure for an aircraft is the following: (3 persons are needed to accomplish
this task):
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Tools needed: Light Hammer, Metric Wrenches, Torque Meter, Screwdriver
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Parts needed: Bolts, nuts, washers and grease.
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Type of maintenance: Heavy
•
Level of Certification needed:
−
Repairman (LS-M) or Mechanic (A&P) – both with the minimum level of certification to
perform heavy maintenance of SLSA in the U.S.
−
FAA approved Part 145 Repair station
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Instructions:
1. Thoroughly clean and lubricate all the wing suspensions and bolts with a suitable lubricant
before the assembly. Also lubricate the flap root groove.
2. The first person holds the wing tip, the second person holds the wing root leading edge,
while the third holds the wing root trailing edge.
Take care of the pitot-static tube(s) when handling the wings.
3. Set the wing carefully on the wing attachments on the fuselage in such a way that the
wing flap is set with the slot on the control pin. When sliding the wings on the attachments
take increased care so that damage to hoses of pitot-static system (left half of the wing)
and electric system cables cannot occur.
4. Set the wing so that the attachments on the wing and on the fuselage are concentric.
5. The person keeping the wing on the leading edge will insert the bolts into the upper main
attachment (the bolt head is in flight direction). Shift bolt by means of slight hammering to
the stop (shifting can be facilitated by slight moving the wing tip up and down). Thereafter
insert the bolt into the lower main attachment and shift it by slight hammering to the stop.
Insert other 4 bolt into the holes.
6. Insert the bolt into the rear attachment of the wing (the bolt head is in flight direction) and
push it by slight hammering to the stop. Put the washer on the bolt and screw the nut on
it.
7. Put on the washers on the wing main attachment bolts and screw the nuts on them. Apply
torque as per table 1.14 on Section 1.
8. Connect the aileron control pull rod, secure the joint.
9. Connect fuel hoses through the holes in the fuselage and join the fuel hoses to the
opposite parts and secure them with hose clip.
10. Connect wiring.
11. Install pitot-static system hoses and carry out leakage test of the pitot-static system.
12. Install wing fairings.