ITT drop indication

Decrease in ITT prior to planned maintenance work, helps find unexpected part failure and optimises downtime.

The aircraft was due in maintenance for two weeks during which the Honeywell Service Bulletin SB 76-5121 (Replacement/Upgrade of the DEEC’s) was to be embodied.  Prior to the work being carried out, the SB requires that a DEEC download is carried out.

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