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57-20 13) Visually inspect the R.H. spar for loose rivets, cracks, distortion and evidence of corrosion. 600 X
57-20 14) Visually inspect the attach fittings and check the R.H. wing front attachment for cracks and evidence of corrosion. 600 X
57-20 15) Visually inspect the attach fittings and check the R.H. wing rear attachment for cracks and evidence of corrosion. 600 X
57-20 16) Visually inspect the attach fittings and check the R.H. wing main attachment spacers for cracks and evidence of corrosion. 600 X
57-20 17) Visually inspect the R.H. wing ribs and inner skin for loose rivets, cracks, distortion and evidence of corrosion. 600 X
57-20 18) Inspect the R.H. wing upper and lower surface skins for condition, inspect the
anti-skid coating and anti-wear PTFE
located at flap/wing junction for condition. 600 X X
57-30 Wing tips
57-30 1) Visually inspect the L.H. wing tip attach fittings. 500 X X
57-30 2) Visually inspect the visible portions of the 500 X X
L.H. wing tip for loose rivets, cracks and distortion.
57-30 3) Visually inspect the R.H. wing tip attach fittings. 600 X X
57-30 4) Visually inspect the visible portions of the 600 X X
R.H. wing tip for loose rivets, cracks and distortion.
NOTE 1 : If a 100-hr. inspection has been carried out during the last 3 months, do not perform the operations identified with a "0" unless the annual inspection replaces a 100-hr. inspection. For US registered aircraft, perform all operations.
AHAA
Validity : S / N 1 - 9999 05-20 01Page 236
(IA) JUN 01
ATA OPERATIONS Area INSPECTIONS
1st
25 hrs 50
hrs 100
hrs Major Ann. Other
57-50 Wing flaps
57-50 1) Visually inspect the L.H. flap attachment and hinge. 500 X 0 NOTE 1
57-50 2) Visually inspect the visible portions of the 500 X X
L.H. flap ; in case of doubt, remove the flap and inspect for loose rivets, cracks, distortion and evidence of corrosion - refer to 57-50-00 201.
57-50 3) Visually inspect the L.H. flap hinge fittings, check the ball joints and the attach fittings. 500 X
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本文链接地址：TB 20 MAINTENANCE MANUAL 05 TIME LIMITS MAINTENANCE CHECKS TB20飞机维护手册 05 时间限制维护检查 1(89)
