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(Refer to Chapter 12-20).
x x x
15. Visually examine the condition of the axles.
Look especially for cracks and corrosion.
x
16. Visually examine the struts and shims in the
outboard brackets. Check for the correct fit
of the components.
x
17. Remove, disassemble and clean the brake
cylinders (4x) and calipers (2x).
x
18. Replace the O-Rings and assemble the
brake cylinders (4x) and calipers (2x).
x
19. Examine the brake lining. Look especially
for wear.
Minimum thickness 3.0 mm (0.12 in)
x x x x
20. Examine the brake disks. Look especially
for wear.
Minimum thickness 3.8 mm (0.15 in)
x* x x x
21. Install the main wheels.
(Refer to Chapter 32-40).
x x x
22. Remove the main landing-gear struts
(Refer to Chapter 32-10).
x
23. Examine the main landing gear.
- Inspect for cracks and deformation.
- Inspect the strut for distortion, corrosion
and paint condition.
x x x x
DA20-C1 AMM
Time Limits and
Maintenance Checks
Doc # DA201-C1
Rev. 13 05-20-00 Page 17
30 Apr 2008
Interval (Flight Hours)
Inspection Items 50 100 200 1000 6000 Initials.
24. Measure the maximum deflection of the
main landing-gear struts.
Lay a straight rod on the upper side of the
strut and measure the maximum value of the
gap.
- Up to 3 mm: Check the main gear for
corrosion and cracks (particularly at the
(0.12 in) curvatures)
- More than 3 mm (0.12 in) gap: Replace
the strut.
x
25. Replace all of the aircraft attachment
hardware to the main landing gear.
x
26. Install the main landing-gear struts
(Refer to Chapter 32-10).
x
27. Do a test for toe-in and camber.
(Refer to Chapter 32-10).
x x
28. Examine the nose-wheel assembly. Look
especially for correct attachment, cracks and
deformation.
x x x x
29. Remove the nose landing-gear strut
(Refer to Chapter 32-20).
x
30. Visually examine the NLG strut condition.
Look especially for distortion, corrosion and
condition of the paint.
x
31. Visually examine the NLG strut pivots.
- Look especially for cracks in the radius of
the assembly, corrosion and wear. Any
corrosion needs to be assessed, treated
and/or the component replaced.
- Inspect the threads of the lower end of
the strut for cracks.
x x x
32. Visually examine the NLG strut upper attach
bolt. Look especially for cracks and
corrosion.
x
33. Do a visual inspection of the NLG bushings
in the T-panel on the bottom of fuselage.
- Check for the security of the bushing in
the T-panel.
- Do a tap test to check for the condition of
the surrounding laminate.
- Check the bond of the T-panel to the
floor panel and to the fuselage skin.
x
Time Limits and
Maintenance Checks
DA20-C1 AMM
Page 18
30 Apr 2009 05-20-00 Doc # DA201-C1
Rev. 15
Interval (Flight Hours)
Inspection Items 50 100 200 1000 6000 Initials.
34. Examine the nose-gear journal-bearings in
the bottom of the fuselage. Look especially
for play.
x* x x x
35. Examine the bearing in the shock absorber
retainer. Look especially for play.
x* x x
36. Examine the nose landing gear shock
absorber assembly. Look especially for
damage and tighten if necessary.
x* x x
37. Replace the nose landing gear shock
absorber assembly (Refer to Chapter 32-20).
Check the telescopic rod for corrosion and
excessive wear.
x x
38. Visually examine the NLG fork.
Look especially for cracks and corrosion.
x
39. Install the nose landing-gear strut
(Refer to Chapter 32-20).
x
40. Examine the nose-wheel fork. Do a test for
play and caster friction.
(Refer to Chapter 32-20).
The friction should be 3 - 5 N (6.75 -
11.25lbs) at the axle.
x x x
41. Lubricate the spherical bearing at the top of
the shock absorber assembly.
(Refer to Chapter 12-20).
x x
42. Lower the airplane off jacks.
(Refer to Chapter 07-10).
x x x x
43. Install the wheel fairings. x x x x
44. Examine the exterior placards. Make sure
that they are not damaged and that none are
missing.
Replace any that are damaged or missing.
(Refer to Chapter 11-20).
x x x
* Not applicable at 25 hour inspection
DA20-C1 AMM
Time Limits and
Maintenance Checks
Doc # DA201-C1
Rev. 13 05-20-00 Page 19
30 Apr 2008
C. Cockpit
All items performed, the findings, as well as their correction must be recorded in accordance with
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钻石20系列AMM 1(27)
