diff --git a/src/calculation_time_constrains/flows.py b/src/calculation_time_constrains/flows.py
index cbf7e1c..da53f40 100644
--- a/src/calculation_time_constrains/flows.py
+++ b/src/calculation_time_constrains/flows.py
@@ -22,6 +22,7 @@ from .service import (create_calculation_result_service, create_param_and_data,
                       get_calculation_data_by_id, get_calculation_result,
                       get_corrective_cost_time_chart,
                       get_overhaul_cost_by_time_chart, run_simulation)
+from src.database.core import CollectorDbSession
 
 
 async def get_create_calculation_parameters(
@@ -83,6 +84,7 @@ async def create_calculation(
     *,
     token: str,
     db_session: DbSession,
+    collector_db_session: CollectorDbSession,
     calculation_time_constrains_in: CalculationTimeConstrainsParametersCreate,
     created_by: str
 ):
@@ -96,7 +98,7 @@ async def create_calculation(
     #     db_session=db_session, calculation=calculation_data, token=token
     # )
     results = await run_simulation(
-        db_session=db_session, calculation=calculation_data, token=token
+        db_session=db_session, calculation=calculation_data, token=token, collector_db_session=collector_db_session
     )
 
     return results["id"]
diff --git a/src/calculation_time_constrains/router.py b/src/calculation_time_constrains/router.py
index a026996..c65f799 100644
--- a/src/calculation_time_constrains/router.py
+++ b/src/calculation_time_constrains/router.py
@@ -18,6 +18,7 @@ from .schema import (CalculationResultsRead,
                      CalculationTimeConstrainsRead, EquipmentResult)
 from .service import (bulk_update_equipment, get_calculation_result,
                       get_calculation_result_by_day, get_calculation_by_assetnum)
+from src.database.core import CollectorDbSession
 
 router = APIRouter()
 
@@ -28,6 +29,7 @@ router = APIRouter()
 async def create_calculation_time_constrains(
     token: Token,
     db_session: DbSession,
+    collector_db_session: CollectorDbSession,
     current_user: CurrentUser,
     calculation_time_constrains_in: CalculationTimeConstrainsParametersCreate,
     scope_calculation_id: Optional[str] = Query(None),
@@ -45,6 +47,7 @@ async def create_calculation_time_constrains(
         results = await create_calculation(
             token=token,
             db_session=db_session,
+            collector_db_session=collector_db_session,
             calculation_time_constrains_in=calculation_time_constrains_in,
             created_by=current_user.name,
         )
diff --git a/src/calculation_time_constrains/service.py b/src/calculation_time_constrains/service.py
index e6a7778..0f7e28b 100644
--- a/src/calculation_time_constrains/service.py
+++ b/src/calculation_time_constrains/service.py
@@ -15,6 +15,7 @@ from src.overhaul_scope.service import get as get_scope, get_prev_oh
 from src.utils import get_latest_numOfFail
 from src.workorder.model import MasterWorkOrder
 from src.sparepart.model import MasterSparePart
+from src.database.core import CollectorDbSession
 from src.overhaul_activity.model import OverhaulActivity
 from .model import (CalculationData, CalculationEquipmentResult,
                     CalculationResult)
@@ -1317,9 +1318,9 @@ class OptimumCostModel:
 
 
 
-async def run_simulation(*, db_session: DbSession, calculation: CalculationData, token: str):
+async def run_simulation(*, db_session: DbSession, calculation: CalculationData, token: str, collector_db_session: CollectorDbSession):
     equipments = await get_standard_scope_by_session_id(
-        db_session=db_session, overhaul_session_id=calculation.overhaul_session_id
+        db_session=db_session, overhaul_session_id=calculation.overhaul_session_id, collector_db=collector_db_session
     )