Autothrust und RNAV??

Erst mal das Mel Item (hier 747)

Zitat

22-31-01-01 Autothrottle System C 1 0 (O) (T) May be inoperative provided approach
minimums do not require its use.

Zitat

1. With Autothrottle System inoperative, CAT II / III operation not permitted.
2. Rolling takeoff not allowed.
3. Manual operation of thrust levers is required, adapt normal operation accordingly:
A. Takeoff:
1) Advance thrust levers to approximately 70% N1, press either TOGA switch and advance thrust
levers smoothly to approximately the reference N1, command CHECK THRUST (PF).
2) Manually adjust thrust levers to obtain takeoff N1 prior to 80 kts and report THRUST SET
(PNF).
3) At 1500’HAA, after command SET THRUST (PF): Set N1 at reference CLB N1 and report
THRUST SET (PNF).
B. Climb, Cruise, Descent and Approach: Monitor target N1 and set N1 accordingly (PF).
C. Go-Around: PF will initially advance the thrust levers. After command “CHECK THRUST” the
PNF is responsible for the correct thrust setting.
NOTE: If A/T ARM Switch is in the OFF position, the EEC engine trim function will not operate.
Small thrust asymmetry may occur even if the throttles appear aligned.

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In Limitations wird nur ueber CAT II und III app gesprochen. Also auch hier keine Limitation.

Auch RNP gibt keine Probleme. Also wird hier auch kein Vermerk unter Systems, oder item 18 gemacht

Zitat

When conducting an RNP approach using a line of minima less than RNP 0.3, no single-point-of-failure can cause the loss of guidance compliant with the RNP value associated with the approach. Typically, the aircraft must have at least dual GNSS sensors. dual flight management systems, dual air data systems, dual autopilots, and a single inertial reference unit.

Ich hatte auch mal so einen Flug. Die Crew ist nach dem Flug fertig. Denn die ganze Zeit eine feste Machzahl halten, ist schon anstraengend

Warum ATC Ihn zurueck gerufen hat moechte ich auch gerne wissen....