A320系列飞机机身下部 FUEL DRAIN/VENT MAST外形损伤标准哪里查？

fcom911

有哪位大神碰到过这个问题：如题，A320系列飞机机身下部 FUEL DRAIN/VENT  MAST外形损伤标准哪里查？在AMM：28-13-00 PB 601 CONF 00  -  WING CENTER TANK EXTERNAL VENTILATING SYSTEM - INSPECTION/CHECK和AMM：28-13-43  -  DRAIN MAST中都没有对MAST外形上的损伤或者FOD有描述，碰到外形损伤只能换件么？有没有手册支持能修理或放行标准的。
例如：B-62XX飞机航后发现该MAST上有一次损伤，长8mm，宽3mm，深2.5mm，没有造成管路堵塞，能放行么？标准在哪里找？

fcom911

AMM手册没有这个
Drain  Mast的外形损伤标准，准备到有网络的地方问问AirbusWorld

fcom911

In response to the below subject, Airbus would like to provide you with the following information:
Based on the information provided by TASK 28-13-00-200-001-A, we confirm that the damage to the drain
mast will not affect the drain function of the mast.
Provided that there is no damage to the drain mast internal pipework, it is acceptable to continue aircraft
operation with the drain mast in this condition.
However any loss or break in paint and protective treatment must be replaced at the next opportunity. We
would recommend that CSN refer to AMM chapter 51-75-00 PB 001 - PAINT REPAIRS - DESCRIPTION
AND OPERATION and in particular AMM TASK 51-75-12-300-003 Repair of Minor Paint Damage
(Topcoat Only).
空巴的意思就是排水管不能堵塞，不影响排放功能，轻微的漆层损伤可以修补，如果损坏到了结构就需要换件，AMM中没有相关的外形损伤放行标准，可以临时修复。