diff --git a/src/calculation_time_constrains/service.py b/src/calculation_time_constrains/service.py
index a4e54ae..7f27d42 100644
--- a/src/calculation_time_constrains/service.py
+++ b/src/calculation_time_constrains/service.py
@@ -18,7 +18,6 @@ from src.overhaul_scope.service import get as get_scope, get_prev_oh
 from src.sparepart.service import get_spareparts_paginated, load_sparepart_data_from_db
 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,