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IRS limitations question

Started by delcom, Mon, 10 May 2010 20:21

delcom

Hi everybody,
It's been about IRU's for the last few days anyway. Please, allow me to ask a question.

Is it possible to align the IRS if the parking position of the aircraft is outside of the magvar N73-S60 (or extended magvar N82-S82) table?

sincerely,
d

Qavion

#1
One airline's AMM says you can't align the IRU's above 78.2deg north and below 78.2deg south (See Maintenance Practices). Perhaps it won't even align in the extended magvar region?