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b) Inspection after rigging

Walk around the aircraft

1. All parts of the airframe

a) check for flaws such as bubbles, holes, bumps

and cracks in the surface

b) check leading -and trailing edges of the wings and control surfaces for

cracks

2. Cockpit area

a) check the canopy locking mechanism

b) check the canopy emergency release see section 7.15 flight manual

c) check the main pin securing

Check especially the headrest securing ropes in the rear cockpit according

to "Working instruction No. 1 for TN348/20 issue 3" (attached to this

manual) for correct assembly and for wear.

d) check all controls for wear and function, incl. positive control check

e) check the tow release system for wear and function incl. cable release

check

f) check for foreign objects

g) check the instrumentation and radio for wear and function

h) check the brake fluid level

i) check the fuel filter for dirt and sludge

j) check the engine controls

k) check all fuses including the battery fuse

l) check the extension-retraction mechanism by operating it in both

directions. The extension time should not exceed 13 seconds!

Note: If the mechanism can't be operated with the ignition switch or with the

manual switch, check the circuit breaker.

m) extend the engine with the manual switch

3. C.G. Tow hook

a) check the ring muzzle of the C.G. hook for wear and function

b) check for cleanliness and corrosion

4. Main landing gear and nose wheel

a) check the struts, the gear box, the gear doors and the tyre for wear; dirt in

the struts can hinder the landing gear from locking over center the next time!

Issued: September 2011

Manual valid with the up-to-date cover page only

Maintenance Manual DG-500M

TN500/05

2.3