SUBJECT： | B737 airplane tire replacement criteria中国名吃 | ||||||||||
题目： | B737飞机的轮胎更换标准 | ||||||||||
分类/CAT.光荣的英语： | CAD/AD | 使用和维护信息 | 维护和放行标准 | 部件信息 | 其它信息 | ||||||
DESCRIPTION： 内容： | |||||||||||
本通告适用机型: | |||||||||||
73C,73J,73N | |||||||||||
本通告适用飞机: | |||||||||||
ALL | |||||||||||
参考资料: | |||||||||||
BOEING MESSAGE HNA-HAK-03-00179/00180H；737-SL-32-077；AMM32-45-00。 | |||||||||||
改版原因: | |||||||||||
采用新模板；修改胎面磨损更换标准；修改图1和图4。 New template ud,update the tire spot wear removal criteria,change FIG1 and FIG4. | |||||||||||
以前相关通告处理: | |||||||||||
本通告完全代替TAMULT-CHH32-001R0。 The TA suspends TAMULT-CHH32-001史上最难的绕口令R0. | |||||||||||
背景BACKGROUND： 为了使维护人员在日常维护工作中能够准确地、迅速地判断轮胎是否需要更换，特颁发本技术通告。 This TA provides tire removal criteria for mechanic to make a quick judgement well and truly in daily maintenance. 正文ACTION： 一 轮胎在使用中出现下列情况之一必须拆下作报废处理，不得继续装机： Remove the tire from the aircraft and discard it if the one of the followings exists: A）轮胎局部磨损露出胎体帘线层。 The spot wear reaches the carcass ply. B）轮胎割伤穿过胎体帘线层。 处女男天蝎女Cuts reach the carcass ply. C）轮胎侧壁帘线层受损伤。 Sidewall cords are expod or damaged. D）胎圈上有过热熔化变软迹象。 Melting of the rubber at the bead at or toe/heel areas. E）胎圈钢索折断、弯曲或暴露出来。 Wire bead broken, bend or expod. F）一条轮胎在使用中爆破，同一起落架上的另一条轮胎要报废。 The tire with another tire burst in the same LG. 二 在使用中出现下列情况之一更换轮胎： Remove the tire from the aircraft if the one of the followings exists: 注意：当下列标准有矛盾时，以严格为准 CAUTION：When the standards below are different with each other, you should choo The strict one. A）胎面磨损(图一，图九) TREAD WEAR(ref fig1 and fig 9) 1）主轮胎面均匀磨损，胎面沟槽深度小于0.79mm(1/32英寸)。 Even tread wear and the remaining groove depth is less than 0.79mm(1/32inch) . | |||||||||||
2）局部磨损露出第三层线(即第一层胎体帘线层)。 ------放行标准和安全要求。 Spot wear expo the third cord(the first carcass ply). ------as dispatch criteria and safty requirement. | |||||||||||
3）所有航站航后检查，和海口、西安、北京航站过站检查，局部磨损露出第一层线(即第一层加强层)。 ------仅为维护便利。 AF check in All stations, and transit check in Haikou/Xi’An/Beijing stations, the spot wear expo the first cord(the first reinforcing fabric ). ------for maintenance conveniency only. | |||||||||||
B）胎肩磨损SHOULDER WEAR 在轮胎勤务中，应针对轮胎胎肩磨损的实际情况，根据图十和图十一所示标准更换轮胎。 Refer to the tire removal criteria provided in Figures 10 and 11 during the tire rvice just for different shoulder wear. C）割伤或裂纹(图二，图三，图四，图六)CUT OR CRACKING(Figures 2, 3, 4 and 6) 1）胎面或侧壁割伤露出胎体帘线层。 Carcass ply are expod or damaged in the tread or sidewall. 大姨妈来了吃什么好 2）胎面割伤从一个胎面沟槽达到另一个胎面沟槽。 Cuts that extend across a rib from one groove to groove. 3）侧壁割伤长度大于150mm(5.9英寸）或深度大于2mm(0.08英寸)。 Cuts in sidewall with length more than 150mm(5.9inch）or depth 2mm(0.08inch). 4）割伤或裂纹延伸进入胎面橡胶底部。 Rib undercutting. 龙岩洞 5）V型割伤露出加强层或从一个胎面沟槽连续达到另一个胎面沟槽。 CHEVRON cuts with reinforcing fabric expod or extending across a rib from one groove to groove. 6）横向切口在胎面凸缘内切口长度超过1英寸。 Tansvers cut length is more than 1 inche in tread rib. 7）斜向割伤切口长度超过了305mm(12英寸)，或深度超过胎面沟槽，或切口两端横向 距离大于12.7mm(0.5英寸)，或切口宽度大于3.2mm(0.125英寸)。 Diagonal cut with length up to 305mm(12inch), or deep than the groove, or the cut in tranrs Direction length is more than 12.7mm(0.5质量体inch), or the width up to 3.2mm(0.125inch). 8）圆周向割伤切口长度超过了50.8mm(2英寸)，或切口两端横向距离大于12.7mm(0.5英寸)，或切口宽度大于3.2mm(0.125英寸)。 Circumferental cut with length up to 50.8mm(2inch), or the cut in tranrs 扒杆Direction length is more than 12.7mm(0.5inch), or the width up to 3.2mm(0.125inch). 9）胎面沟槽内的裂纹露出胎体帘线层。 The groove cracking expos the carcass ply. 10）轮胎侧壁裂纹露出胎体帘线层。 The sidewall cracking expos the carcass ply. D）其他损伤(图三，图四，图五，图七，图八)other damage(Figures 3, 4, 5, 7 and 8) 1）拖胎滞动造成平面磨损和烧伤使加强层露出或剩余沟槽深度小于0.79mm(1/32英寸)， 或导致在使用中发生振动。 Skid burns and spot wear result from brake malfunctions or locking of the wheel cau the reinforcing fabric expod or remaining groove depth is less than 0.79mm(1/32inch)，or vibration report in u. 2）轮胎受油类等污染后膨胀变软。 The surface of the tire appears soft, spongy due to oil contaminants. 3）轮胎老化露出胎体帘线层。 Aging tire with carcass ply expod. 4）轮胎表面鼓包。 Bulges and blisters. 5）胎面橡胶掉块脱落达到沟槽底部或从一个沟槽达到另一个沟槽或使加强层露出。 A tread rib partially or totally peels off is deeper than thetread groove or extends across a rib from groove to groove or reinforcing fabric expod. 11 6）胎面橡胶分层剥落。 Delaminaiton of a tread rib away from the tire carcass. 7）轮胎扎伤孔洞直径超过9.53mm(0.375英寸) ，或扎伤孔的深度达到胎体帘线层。 Hole of puncture diameter is more than 9.53mm(0.375inch),or deep into the carcass ply. 注意note： 胎面沟槽底部到第一层线（第一层加强层）厚度约为3mm。胎面沟槽底部到第三层线（第一层胎体帘线层）厚度约为6.0mm。如果扎伤孔洞开口较小，不能看到帘线层，可以依据此数据进行判断是否达到了第三层线（胎体帘线层）。 The groove bottom to first reinforcing fabric is about 3mm. Tread Groove Bottom to the First Casing Ply is about 6mm. If the cut open is too small to expo the carcass ply you can adjuge the depth to carcass ply or not by caculuting. 8）装机的机轮组件轮胎胎体与轮毂组件之间沿周向相对滑动超过20度（详细信息参考TAMULT-32-002 -在轮胎上喷涂防滑标志带以及轮胎与轮毂组件之间发生相对滑动的说明）。 Tire and wheel assmbly with circumfental slippage up to 20 degree.(ref to TAMULT-32-002) 9）胎体靠近轮毂处有熔化变软现象。 Tire area near the wheel was melt and soften. 10）大于正常着陆速度下采用高能刹车中断起飞。 High energy brake RTO at high landing speed. 11）可能引起轮胎故障的其他情况。 Other faulty condition. 三 以上为轮胎装机充气状态下的检查标准。工作中不得以螺丝刀等工具检查损伤深度，以防轮胎爆炸伤人。 The check criteria above is for inflation tire.Do not probe cuts by sharp tools like screwdriver to avoid the explotation and injury. 注意：如需要检查损伤深度，可以使用没有尖角的保险丝进行测量。 Note: To measure the depth of damage,using the safty wire without sharp dege. 受影响的相关手册affected manual:[n/a] 受影响的相关工卡affected card:[ n/a] | |||||||||||
FIG 1 | |||||||||||
FIG 2 | |||||||||||
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