All Corner Station H1 ISI Coil Driver chassis were removed from their racks and modified in trhe EE lab as per ECRs E1100821 & E1300535 .   These mods also include the swapping of a wire on the temp reset switch from the "normally closed" position to the "normally open" position. Also, a number of the surface mount +15VDC indicator LEDs were installed incorrectly and would not illuminate.

Chassis S1103566 in SEI rack C1 doesn't have the "keyed" 24VDC connector. It has the typical +/- 18VDC config and associated power cable.

Chassis S1103363 (HAM2) in SEI rack C2 was noted as having a -15V led not illuminated. Upon further investigation it was found to have a bad 7915 regulator which is what E1300535 was implemented to prevent.

All chassis were re-installed and are powered up. SEI team was informed. E-travelers will be updated.