Got a visual error. Was strafing trucks and took a hit and a 1/4 section out of the center of the upper wing disappeared! My little pilot guy pooped his simulated drawers and was about to bail out when I noticed the plane was still flying good! It seems the wing section just turned invisible but was still providing lift!
To fix this, replace the relevant section of the hier.him by the following:
[WingLOut_D0]
Mesh WingLOut_D0
Parent WingLMid_D0
Separable
Attaching 1 0 0 0 1 0 0 0 1 2.348272 -0.001461 0.122223
CollisionObject xwinglout
CollisionObject .xxsparlo1
CollisionObject .xxsparlo2
[WingROut_D0]
Mesh WingROut_D0
Parent WingRMid_D0
Separable
Attaching 1 0 0 0 1 0 0 0 1 -2.348272 -0.001461 0.122223
CollisionObject xwingrout
CollisionObject .xxsparro1
CollisionObject .xxsparro2
[AntennaL_D0]
Mesh AntennaL_D0
Parent WingLOut_D0
Attaching 1 0 0 0 1 0 0 0 1 -3.183636 1.585953 -0.853041
[AntennaR_D0]
Mesh AntennaR_D0
Parent WingROut_D0
Attaching 1 0 0 0 1 0 0 0 1 3.156082 1.591448 -0.853724