Your aircraft cfg has some lines thats not correct.did you put new textures in that plane and change the cfg file?.if so then open that cfg file and look at the lines i have listed below.there from the dc3 cfg file.


[fltsim.0]
title=Douglas DC-3
sim=Douglas_DC3
model=
panel=
sound=
texture=1
kb_checklists=Douglas_DC3_check
kb_reference=Douglas_DC3_ref
atc_id=N36644
ui_manufacturer=Douglas
ui_type="DC-3"
ui_variation="World Travel Airlines"
description="The Douglas DC-3 revolutionized air transportation and airline service during the 1930s and 1940s. It was a luxury airliner that boasted cabin heat and running water in its on-board lavatory. With the right balance of efficiency, range, speed, and payload, the DC-3 was the first aircraft to earn a profit for its owners just by carrying passengers. The hero of early airlines, a handful of DC-3s are still at work today."

[fltsim.1]
title=Douglas DC-3 Paint1
sim=Douglas_DC3
model=
panel=
sound=
texture=2
kb_checklists=Douglas_DC3_check
kb_reference=Douglas_DC3_ref
atc_id=N849EH
ui_manufacturer=Douglas
ui_type="DC-3"
ui_variation="Emerald Harbor Air"
description="The Douglas DC-3 revolutionized air transportation and airline service during the 1930s and 1940s. It was a luxury airliner that boasted cabin heat and running water in its on-board lavatory. With the right balance of efficiency, range, speed, and payload, the DC-3 was the first aircraft to earn a profit for its owners just by carrying passengers. The hero of early airlines, a handful of DC-3s are still at work today."

[fltsim.2]
title=Douglas DC-3 Paint2
sim=Douglas_DC3
model=
panel=
sound=
texture=
kb_checklists=Douglas_DC3_check
kb_reference=Douglas_DC3_ref
atc_id=N47DAC
ui_manufacturer=Douglas
ui_type="DC-3"
ui_variation="Cargo"
description="The Douglas DC-3 revolutionized air transportation and airline service during the 1930s and 1940s. It was a luxury airliner that boasted cabin heat and running water in its on-board lavatory. With the right balance of efficiency, range, speed, and payload, the DC-3 was the first aircraft to earn a profit for its owners just by carrying passengers. The hero of early airlines, a handful of DC-3s are still at work today."

[fltsim.3]
title=Douglas DC-3 Paint3
sim=Douglas_DC3
model=
panel=
sound=
texture=3
kb_checklists=Douglas_DC3_check
kb_reference=Douglas_DC3_ref
atc_id=N347DC
atc_id_color=0xffffffff
ui_manufacturer=Douglas
ui_type="DC-3"
ui_variation="Red and yellow"
description="The Douglas DC-3 revolutionized air transportation and airline service during the 1930s and 1940s. It was a luxury airliner that boasted cabin heat and running water in its on-board lavatory. With the right balance of efficiency, range, speed, and payload, the DC-3 was the first aircraft to earn a profit for its owners just by carrying passengers. The hero of early airlines, a handful of DC-3s are still at work today."


Now it looks messed up but this is the default file check yours out with these lines and see if it matches up.cause all my textures loads just fine with no problems.and dont forget the number 1 rule in changeing files all ways back up the file your changeing in case of  mistakes.