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- distortions, impacts, cracks and evidence of corrosion between the rib and the skin, - loose rivets, - impacts, cracks and evidence of corrosion between the spar and the skin, Sealed areas - coating of the spar flanges and the flanged edges of the ribs with sealant (TB 09-001A), Non-sealed areas from N1 rib to N4 rib S / N 1607, 1615 - 1626, 1628 - 9999 I - coating of the spar flanges with sealant (TB 09-013A) or (TB 09-918), All areas - security and condition of the fuel tube support and the electrical wiring on N1 rib, - correct routing of the fuel tube from N4 rib to the filter selector, - if installed, correct passage of the deicing hoses through N1 and N2 ribs and presence of protection strips on the clearing holes, - distortions, loose rivets, cracks and evidence of corrosion of the roll control bellcranck support between N3 and N4 ribs, AAAA Validity : S / N 1 - 9999 57 00-00Page 605 (EA) SEP 04 - presence of protection edgings on the clearing holes and the sharp edges at cable passages, - condition and security of the tank vent tube/hose and presence and condition of the grommets, - if installed, correct passage of the deicing hoses through N9 and N 10 ribs, their attachment to the vent tube/hose and the presence of protection strips on the clearing holes, - security and routing of the wires with clamps or wire retainers and tie-wraps, - if installed, condition, security and sealing of the low level detector, - condition, security and sealing of the fuel gages, - distortions, loose rivets, cracks and evidence of corrosion of the roll control bellcrank support between N8 and N9 ribs. D. Final steps 1) Make sure all the tools and materials are removed and the work area is clean and free from debris. 2) Bond the anti-skid coating - refer to Page 301. 3) Install the roll control rods as marked during removal. 4) Make sure the roll control moves freely. 5) Install the wing inspection doors - refer to 52-40-00. 6) Install the wing tips - refer to 57-30-00. 7) Install the cowlings under hull 218A and 218F. 8) Install junction fairing 217L [217R]. Post-MOD. 151 9) Install footstep fairing 2111L [211113]. All 10) Remove the warning sign prohibiting main switch-breaker operation. 11) Retract the flaps. 12) Replenish the fuel tanks - refer to 12-11-01. 13) Perform a test run-up - refer to 05-30-02. 2. CORROSION INSPECTION OF THE SPAR / SKINS INTERFACE FROM N1 RIB TO N4 RIB (Figures 601, 602, 603, 604, 605, 606 and 607) A. Tools and consumable materials - Corrosion inspection ruler TB81105Z TB20 11990003 or metrology ruler - Feeler gage set - 6 x magnifying glass 中国通航网 www.ga.cn 通航翻译 www.aviation.cn 本文链接地址：TB20 MAINTENANCE MANUAL 57 机翼 TB20飞机维护手册(13) |
