TM 1-1520-238-T-6
9–466
9–206. CIRCUIT PROTECTION SYSTEM (DC ESSENTIAL BUS 1 – PILOT STATION) –
9–206
MAINTENANCE OPERATIONAL CHECK (cont)
Task
Result
q. Check for 28 VDC at P2-a.
If 28 VDC is not present, go to paragraph 9–213.
r. Check for 28 VDC at P1-19.
If 28 VDC is not present, go to paragraph 9–214.
s. On electrical power distribution box, attach
P1 and P2.
2. On pilot ELEC PWR panel (fig. 9–172), set BATT/EXT PWR switch to OFF.
3. Perform EXTERNAL POWER – POWER DOWN (para 9–46).
END OF TASK
