Most of you seem to imply c/b resets are the exclusive domain of maintenance. Below is a the C/B reset discussion in the FCOM and from the discussion it seems to me to be pretty clear - on the ground, with a few obvious exceptions, flt crew can do a c/b reset of most any computer.
COMPUTER RESET
The normal purpose of a circuit breaker (C/B) is to protect wiring against short circuits, and to isolate equipment for maintenance.
Another C/B function involves digital computers : The reset function. When a digital computer behaves abnormally due to an electrical transient, for example, the abnormal behavior can be stopped by briefly interrupting the power supply to its processor.
The flight crew can reset most of this aircraft's computers with a normal cockpit control (selector or pushbutton). However, for some systems, the only way to cut off electrical power is to pull the associated C/B.
PROCEDURE
To perform a computer reset:
- Set the related normal cockpit control to OFF, or pull the corresponding reset pushbutton or circuit breaker
- Wait 3 seconds if normal cockpit control is used, or 5 seconds if a circuit breaker is used (unless a different time is indicated)
- Set the related normal cockpit control to ON, or push the corresponding reset pushbutton or circuit breaker
- Wait 3 seconds for the end of the reset.
WARNING
do not reset more than one computer at the same time, unless instructed to do so.
.........
- On ground, almost all computers can be reset, and are not limited to the ones indicated in the table. Following computers are not allowed to be reset in all circumstances :
ECU (Engine Control Unit on CFM engines) or EEC (Electronic Engine Control on IAE engines) and EIU (Engine Interface Unit) while the engine is running.
BSCU (Brake Steering Control Unit) if the aircraft is not stopped. (Refer to 3.04.32).
- In flight, as a general rule, the crew must restrict computer resets to those listed in the table, or to those in applicable TRs or OEBs. Before taking any action on other computer the flight crew must consider and fully understand the consequences.
CAUTION
Do not pull the following circuit breakers :
- SFCC (could lead to SLATS/FLAPS locked)
- ECU or EEC, EIU.
Again, it seems pretty clear to me that the above would provides for crew to do c/b resets for simple faults if the crew only new which c/bs to cycle.
If maint come out to the aircraft, they first refer to the troubleshooting manual and if the reset procedure in there doesn't work then it's RTG for further evaluation and/or pull it out of service. All I want to do is put those TSM reset procedures in the flight deck so crew can refer to them and thus save the delay of calling maint to do the same thing.
Nobody does that?