diff --git a/modules/icing/pirep_goes.py b/modules/icing/pirep_goes.py
index ee4df69631c5f5265e3da6a765726b5fb5a6e58f..245038e2eb05c8214f0517b0243bc13c1a1b3ff7 100644
--- a/modules/icing/pirep_goes.py
+++ b/modules/icing/pirep_goes.py
@@ -699,7 +699,7 @@ def run_daynight(filename, filename_l1b, day_night='ANY'):
 
 
 def run_qc(filename, filename_l1b, day_night='ANY'):
-    pass_thresh_frac = 0.4
+    pass_thresh_frac = 0.15
 
     f = h5py.File(filename, 'r')
     icing_alt = f['icing_altitude'][:]