Hi Godu,
Good question, I have not flown a new FADEC-EEC equipped a/c yet so I dont know, but I would say that TMD cannot indicate CLB until full CLB limit is reached ie at 19,000ft just my guess.
The engineers have been given reams of info to ensure the permissible engine/EEC/FADEC intermix combinations, some of this contains useful flight ops info which may be of interest to crew as follows:
A partial list of changes/improvements is as follows:
EEC software version 7.B.U1 (P/N 1853M78P31 (FADEC2) and 2044M25P12 (FADEC3)) was introduced most recently and feature the following improvements:
Introduce lightning stall detection logic and accommodation logic.
Introduce bodie stall margin improvement logic
Improve variable stator vane (VSV) open beta margin logic
Add compressor health calculations
Introduce water wash menu mode functions
Introduce a new ECU/EEC fuel nozzle fault message
Introduce variable bleed valve (VBV) sand ingestion logic
N1 Trim altitude increase and optimization
DAC engine instability correction
Debris Monitoring System (DMS) resistance history
EEC software part numbers 1853M78P27 (FADEC 2) and 2044M25P07 (FADEC 3) and later include several significant operational differences from previous software versions including - a higher approach idle schedule, a higher minimum in-flight idle schedule, a transient N1 redline addition, and a faster engine deceleration rate during Refused Takeoff maneuvers. These in-flight idle differences will be readily noticeable to the flight crew. Due to the different engine deceleration rate during an Refused Takeoff maneuvers, intermix of these software part numbers with earlier part numbers is not permitted.
Intermixing with an earlier version of software will cause transient
asymmetric thrust differences due to different acceleration / deceleration rates at altitude.
Intermix of one of these software versions and any prior software version currently approved for installation will result in a small difference in idle speeds for three seconds after touchdown if thrust reversers are not deployed. This difference in idle speeds is negligible and requires no change to current flight operations.
Ballyboley,
It is available for retrofit, subject to intermix restrictions.
Re full thrust climbs, they do theoretically save fuel by getting you to the more efficient higher altitudes sooner, but it is not always appropriate due to high climb rates in busy airspace (RA risk).
S&L