It looks like a power path circuit having a P-type pass element (PNP transistor or P-type MOSFET). The missing resistor is between the Emitter and Base (or Source and Gate) to ensure that the pass element is off when the Base (or Gate) is not pulled down (by the other transistor in the picture). Marking 427 does not sound correct (would suggest 420Mohm value, which certainly is not used in that circuit). Could it be 472? What is the marking on the adjacent resistor?
The copper route from the rightmost black box (transistor) going under the diode (barrel shaped black component) looks “brown”. Is it dirt or is it the actual color of the track? If it is not dirt, that suggests that there has been a short circuit, which means that also the transistor is most probably broken (and something else, which caused the short circuit). You could try some generic P-FET and a, say, 100kohm resistor ( DMG2305UX-13DICT-ND, RR08P100KDCT-ND, assuming the transistor is in SOT-23 package and the resistor in 0603 package, cannot say sure from the photo).