Patch17839156 failed

Hi,

While applying patch 17839156, below is the error encountered.

Problem Description
---------------------------------------------------
FAILED: file pa_projects_all.xdf on worker 46 for product pa username APPS.


      FAILED: file pa_projects_all.xdf on worker 1.
      FAILED: file pa_bc_balances.xdf on worker 2.

adwork001 log
The table PA_PROJECTS_ALL is missing the column BILL_LABOR_ACCRUAL

Executing statement

ALTER TABLE PA.PA_PROJECTS_ALL ADD ( BILL_LABOR_ACCRUAL VARCHAR2(1) DEFAULT 'N' NULL )

Start time for statement above is Fri Jun 20 10:30:17 EDT 2014
End time for statement above is Fri Jun 20 10:30:17 EDT 2014
Error in executing statement ALTER TABLE PA.PA_PROJECTS_ALL ADD ( BILL_LABOR_ACCRUAL VARCHAR2(1) DEFAULT 'N' NULL )