GEN 2 or GEN 3, GEN 4 or APU GEN OFF light on.
Use reset procedure, or place associated BUS MONITORING switch ON. If an engine‐driven generator light remains on steady throughout reset procedures, or goes out momentarily and comes back on, mission should be aborted.
If the APU generator control circuit breaker is out, the APU GEN OFF light will be on. Automatic APU load monitoring above 8,000 feet will be disabled; however, the generator will assume the load.
- Generator supervisory panels shall not be exchanged until appropriate maintenance actions are performed.
- Ensure GEN 4 AUX CONT and GEN 4 TRANS circuit breakers are set appropriately.