TM 1-1520-238-T-4 4–72 4–14. POWER PLANTS – WIRING INTERCONNECT DIAGRAM (cont) 4–14 GS570 J J GS574 28 VDC 26 25 23 P39 3 1 J21 P21 RTN RTN J P448 A14 A13 A12 A11 J448 1 20 24 17 19 18 J21 17 P21 19 18 RTN P39 P/O ENGINE ANTI - ICE J448 P448 J22 P22 P40 26 4 3 A15 1 2 23 24 4 19 P40 18 19 P45 20 18 J22 P22 P46 E3 P/O ENGINE 1 BLEED START VALVE IGNITION DISABLE (NOTE 10) IGNITION 125 VAC IN T3 28 VDC IN 2 RTN REGULATOR VALVE 25 L3 IN 28 VDC RTN ENGINE STARTER 1 GS542 (NOTE 10) IGNITION (NOTE 10) T3 17 125 VAC OUT BLEED START VALVE P/O ENGINE STARTER P/O ENGINE ANTI - ICE P/O ENGINE 2 17 E3 IGNITION DISABLE T3 (NOTE 10) L4 REGULATOR VALVE M58-018-2B SHEET 2 OF 21 W165 W119 W119 W118 W166 W119 W118 G(1) B(1) H(1) C(1) ENGINE 2 START LIGHT SWITCH ENGINE STARTER REGULATOR VALVE IN ENGINE 1 START LIGHT SWITCH ENGINE STARTER REGULATOR VALVE 28 VDC IN T3 P(6) S(6) R(6) M(5) N(7) L(7) K(5) J(5) AAG ABC W119 (NOTE 26) (NOTE 26) (NOTE 26) (NOTE 26)