compass calibration method B737 all

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compass calibration method B737 all

Postby vortex » 19 Jun 2017, 20:58

How many ways exist to calibrate (or "swing") an aircraft compass ?
Vortex
vortex
 
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Joined: 25 Jul 2010, 01:42

Re: compass calibration method B737 all

Postby maro12 » 23 Jun 2017, 11:21

Hello Vortex,

As far as I know there are two ways (included in AMM):

-Calibrator procedure (TASK 34-23-00-820-801),

-Taxi/Tow Around procedure (TASK 34-23-00-820-802).

You need to do calibration in "compass swing area" (isolated from electromagnetic fields).

Personally I never done "Calibrator Procedure", I always go with aircraft to compass swing area and we tow or taxi it around through adjustment points.

I never came across any other procedures not included in AMM, but it might be possible that such procedures exist (like compass manufacturer documentation as reference).

Remember to use non magnetic screwdriver when You adjust compass screws. I seen people going close to compass with "snap-on" screw driver, very bad, compass jumps around than needs a lot of time to stabilise, adjustment like this is pointless and can damage the compass.

Hope this helps.

Best Regards,
Maro12
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Re: compass calibration method B737 all

Postby vortex » 23 Jun 2017, 14:40

Thanks maro12 for you information, it works.

regards vortex :D :D :D
vortex
 
Posts: 114
Joined: 25 Jul 2010, 01:42


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