Minor MD-11 tech questions
Thread Starter
Joined: Mar 2007
Posts: 161
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From: hungary
Minor MD-11 tech questions
Hi everyone,
I have collected some non-important ( but nice to know) questions which are not covered in the MD-11 AOM:
1. In the cockpit ceiling above the pilots’ side windows and further back in the aft cockpit roof there are small levers/knobs with the plackard: „CONDITIONED AIR”.What is the function of these controls?
2. On the outside of the aircraft in the lower cargo door operating panel there is a switch and rotary knob with the plackard: „BRAKE GUIDE”, „BRAKE SELECT”, ROLLER SELECT”. Again, what is the function of these controls? ( I assume something to do with the cargo handling system).
3. Is the forward entry door electric actuator motor fed by the direct batt bus? To be able to open it on a cold/dark unpowered a/c?
I appreciate your help.
I have collected some non-important ( but nice to know) questions which are not covered in the MD-11 AOM:
1. In the cockpit ceiling above the pilots’ side windows and further back in the aft cockpit roof there are small levers/knobs with the plackard: „CONDITIONED AIR”.What is the function of these controls?
2. On the outside of the aircraft in the lower cargo door operating panel there is a switch and rotary knob with the plackard: „BRAKE GUIDE”, „BRAKE SELECT”, ROLLER SELECT”. Again, what is the function of these controls? ( I assume something to do with the cargo handling system).
3. Is the forward entry door electric actuator motor fed by the direct batt bus? To be able to open it on a cold/dark unpowered a/c?
I appreciate your help.
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Joined: Mar 2009
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From: USA
1. In the cockpit ceiling above the pilots’ side windows and further back in the aft cockpit roof there are small levers/knobs with the plackard: „CONDITIONED AIR”.What is the function of these controls?
2. On the outside of the aircraft in the lower cargo door operating panel there is a switch and rotary knob with the plackard: „BRAKE GUIDE”, „BRAKE SELECT”, ROLLER SELECT”. Again, what is the function of these controls? ( I assume something to do with the cargo handling system).
3. Is the forward entry door electric actuator motor fed by the direct batt bus? To be able to open it on a cold/dark unpowered a/c?
2. On the outside of the aircraft in the lower cargo door operating panel there is a switch and rotary knob with the plackard: „BRAKE GUIDE”, „BRAKE SELECT”, ROLLER SELECT”. Again, what is the function of these controls? ( I assume something to do with the cargo handling system).
3. Is the forward entry door electric actuator motor fed by the direct batt bus? To be able to open it on a cold/dark unpowered a/c?
2- You are correct cargo loading and anti cargo rollout device control.
3- Fwd LH most fwd entry door is fed by the ground service A/C bus, it can be disengaged to open manually but is very heavy with the slide pack on or opened by a pneumatic motor from the inside as an emergency provision.
Last edited by muduckace; 1st May 2010 at 21:30.
Thread Starter
Joined: Mar 2007
Posts: 161
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From: hungary
Many thanks muduckace, but still curious: when you enter an unpowerd MD-11 (I know it's rare in line ops) you or the tech staff has to open the door manually? To put it in another way: if you connect external AC, is the AC GRND SERV BUS powered without switching ext pwr on in the cockpit?
best rgds
b
best rgds
b
Joined: Jan 2003
Aviation Qualifications: ATPL
Posts: 279
Likes: 17
From: Europe
if you connect external AC, is the AC GRND SERV BUS powered without switching ext pwr on in the cockpit?
