All codes
Service call
SC366
HDD bad sector maximum (older)
BController / HDD
Level B — stop, power-cycle may clear
First check
Same as SC865 on current machines. Replace the disk this visit.
What it means
HDD bad sector maximum (older). Confirm the exact subcode against the FSM for this serial — meaning can shift by generation.
Likely causes
- Same as SC865 on current machines. Replace the disk this visit.
On-site steps
Parts to have on the truck
- HDD/SSD
Related codes
Confirm the subcode and part number in the FSM for this serial. Raicoh is a field companion, not a replacement for the book.