AFTER STARTING APU (CONT)

TM 1-1520-238-MTF 2-15 Change 1 PROCEDURE TROUBLESHOOTING REFERENCE AFTER STARTING APU (CONT) 1. External power (if used) – Disconnect. Verify EXT PWR caution/warning segment extinguished. *2. Generator system – Check as follows: NOTE During the following checks the BUCS fail lamp will illuminate on BUCS equipped air- craft. This is normal and will be cleared dur- ing the BUCS self test or by cycling the ASE pitch, roll, or yaw switches. a. GEN 1 switch – TEST. Verify GEN 1 caution/warning segment extinguished. **b. GEN 1 switch – GEN. Verify GEN 1, RECT 1, RECT 2 and SDC caution/warning segments extinguished, CPG ELEC SYS FAIL caution/warning segment extinguished. NOTE The TADS, PNVS, ASE and ADS caution/ warning segments will illuminate and remain illuminated until the respective system switches are turned on. c. GEN 2 switch – TEST. Verify GEN 2 caution/warning segment extinguished; RECT 2 and HOT BAT caution/warning segments illuminated. A9