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Old 16th February 2007 | 18:03
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Paris Hilten
 
Joined: Jan 2007
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Altimeter accuracy?

Just overflew an A/C on same airway 2,000ft below. TCAS showed -20 as normal. But the radalt showed 1800 ft all the time when overhead. And radalt don't lie.

Can anyone explain this?
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