Aircraft on ground, engines stopped, ECU’s powered.

If this alert triggers at engine start, apply the following procedures:

1. Aircraft on ground.

2. Set ENG MASTER SW (affected) to off.

3. Confirm ENG (FADEC) GND PWR (affected) pb-sw to OFF. Wait appprox 1 minute in order to have N2 below 5%.

4. Cycle/Reset above affected C/B's.

5. After ECU power-up sequence, consider a engine dry crank (if applicable).

6. Restart the engine.

2 seconds.

Pass: Fault Clears

Fail: Fault remains.

HPTCC VLV(POS), HMU or TCC faults not confirmed on FADEC test are spurious.

AMM73-22-00-710-040.