From c585f7f7d1f06fa9a587cbf96e6c08527549e47b Mon Sep 17 00:00:00 2001
From: James Turner <zakalawe@mac.com>
Date: Wed, 16 Dec 2015 13:02:06 -0800
Subject: [PATCH] Asserts to pin down a reported crash.

---
 src/ATC/GroundController.cxx | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/ATC/GroundController.cxx b/src/ATC/GroundController.cxx
index 17b06b340..1e25e971a 100644
--- a/src/ATC/GroundController.cxx
+++ b/src/ATC/GroundController.cxx
@@ -1024,9 +1024,13 @@ void FGGroundController::updateActiveTraffic(TrafficVectorIterator i,
                                              int& priority,
                                              time_t now)
 {
+
+    assert(i->getAircraft());
+    assert(i->getAircraft()->getPerformance());
     double length = 0;
     double vTaxi = (i->getAircraft()->getPerformance()->vTaxi() * SG_NM_TO_METER) / 3600;
     FGGroundNetwork* network = dynamics->getGroundNetwork();
+    assert(network);
 
     i->setPriority(priority++);
     int pos = i->getCurrentPosition();
-- 
2.39.5