NOTE: An equivalent meter can be used as long as the digital multimeter minimizes self-heating Of the sensor element. The instrument must limit the current through the sensor to less than100 Micro-amperes when set to the 10K ohms scale. If you use resistance measuring instruments Without this current-limiting feature you will get an error in resistance value due to self-heating Of the sensor element.

(1) Get access to the lavatory module.

(2) Open the shroud and access door on the lower vanity.

(3) Put the water heat switch in the off position.

(4) Turn the water shutoff valve to the OFF position.

NOTE: The water shutoff valve is below the sink（水槽） in the lavatory.

(5) On the forward lavatories, open the drain valve.NOTE: Only the forward lavatories have the Drain valve.

Faucet（水龙头） Assembly Removal

(1) Remove the setscrews [102] from the faucet assembly [101].

(2) Remove the faucet assembly [101] from the mounting plate [103]. (a) Pull the faucet assembly [101] from the mounting plate [103] until the faucet disconnects from the water inlet fittings[104].(ATA38)

航前：完成跨水工卡 XD-25-801-A， 装上三个救生筏，检查好，检查相关应急设备在位正常

航后：根据xD-05-805-A完成遭遇雷击后检查的机械部分，共发现30处烧蚀，根据SRM53-00-01

和 SRM57-20-01 判断未超标，因技术原因申请推迟维修，计划 10 个飞行循环内修复。

There is one bleed air system for each engine. The engine bleed system controls bleed air Temperature and pressure. Engine bleed air comes from the 5th and 9th stages of the high Pressure compressor. A high stage regulator and high stage valve control the flow of 9th stage Bleed air. The 5th stage check valve prevents reverse flow into the 5th stage. A bleed air regulator And the pressure regulator and shutoff valve (PRSOV)control the flow of bleed air to the Pneumatic manifold.The air conditioning accessory unit (ACAU)contains relays, and is an interface Between the air conditioning/bleed air controls panel switches and lights. (ATA36)

短停：根据 AMM32-45-11 更换右内主轮，转动检查好。大螺帽安装力矩：550-30-150 磅英

尺，防尘盖安装力矩：75 磅,英寸，轮胎气压 210psi。 计量编号：MHFM143A、MHFM132A.

航后：为证实故障，按 AMM23-42-01 将前舱手提电话与后舱手提电话对调，检查工作正常