L-3 TECHNOLOGIES ESI-500 Pilot's Manual
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ESI-500Pilot’s Guide2-12OperationAttitude Degraded OperationAttitude Degraded operation occurs when the normal air data aidingsource is lost for three minutes, or if the Pitch or Roll value is greaterthan 35° for three minutes. The unit is able to continue displayingattitude information at a lesser performance. The pilot is alerted to thisdegraded mode of operation by an amber “ATT DEGRADED” indicationon the display. Note - Heading performance is also degraded for unitsusing the MAG-500.• During flight, if air data is not failed and the “ATT DEGRADED”indication is displayed, cross check the attitude with anothersource or outside reference. Return to straight and level flight untilthe message clears for full performance.• During flight, if air data is failed and the “ATT DEGRADED”indication is displayed, cross check the attitude with another sourceor outside reference.Heading Degraded OperationFor installations with a MAG-500, the Heading Degraded operationoccurs if the Roll value is greater than 11.5° for three minutes, or if the“ATT DEGRADED” indication is shown.The unit is able to continue displaying heading information at a lesserperformance. The pilot is alerted to this degraded mode of operationby an amber “HDG DEGRADED” indication on the display.• During flight, if “HDG DEGRADED” indication is displayed, crosscheck the heading with another source or outside reference. Returnto straight and level until the message clears for full performance. |
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