Maven repository failure - cannot build project

Cannot build project based on RH PAM 7.7 due to RedHat maven repository error. Below message from maven build:

[ERROR] Failed to execute goal on project etl3-bpm-workitems-core: Could not resolve dependencies for project com.mycompany.bpm:etl3-bpm-workitems-core:jar:2.66.11-SNAPSHOT: Failed to collect dependencies at org.kie.server:kie-server-services-jbpm:jar:7.33.0.Final-redhat-00002 > org.kie:kie-ci:jar:7.33.0.Final-redhat-00002 -> org.kie.soup:kie-soup
maven-integration:jar:7.33.0.Final-redhat-00002 -> org.eclipse.sisu:org.eclipse.sisu.plexus:jar:0.3.2.redhat-00002 -> org.codehaus.plexus:plexus-utils:jar:3.0.17.redhat-00001: Failed to read artifact descriptor for org.codehaus.plexus:plexus-utils:jar:3.0.17.redhat-00001: Could not transfer artifact org.codehaus.plexus:plexus-utils:pom:3.0.17.redhat-00001 from/to maven.repository.redhat.com.ga (https://maven.repository.redhat.com/ga): Failed to transfer file https://maven.repository.redhat.com/ga/org/codehaus/plexus/plexus-utils/3.0.17.redhat-00001/plexus-utils-3.0.17.redhat-00001.pom with status code 503 -> [Help 1]