YEAH ..... that's one of the errors.
The base pack B737-400 AIR.FILE name should read as follows ....
HJG_737-400
HJG_737-400.air .... depending on file naming conventions/protocols on your pC ... .whether or not the extension "dot air" is displayed, so, adjust the SIM= data line for your [FLTSIM.3] section .... for the BMI texture.
Another detail I've note (and notes this caused problems for someone wise recently too) is in regard to the TITLE= data line for your [FLYSIM.0] section .... for the BA texture. Yours currently reads as follows ....
title=HJG B737-4S3 British Airways (1994)
.... but should be edited to read as follows ....
title=HJG B737-
400 British Airways (1994)
If you have too many different variations in the naming of "the aircraft type" among the TITLE= data lines of the [FLTSIM.XX] entries then this can confuse FS and some textures might not then be displayed
SO ,,,, I've copied & pasted your entire FLTSIM.XX section below ... .and I've "hilited and bold typed in red" each of the changes I recommend you apply and which should resolve you problem completely.
Let me know please
Mark C
AKL/NZ
[fltsim.0]
title=HJG B737-
400 British Airways (1994)
sim=HJG_737-400
model=
panel=
sound=
texture=hjg_b737-400_ba_g-bvno_1994
visual_damage=1
kb_checklists=Boeing737-400_check
kb_reference=Boeing737-400_ref
atc_id=G-BVNO
atc_airline=SPEEDBIRD
atc_flight_number=734
ui_manufacturer=Boeing
ui_type=737-400
ui_variation=British Airways (1994)
description=From the most successful family of jetliners ever built comes the 737-400. This can be your entry into virtual airline flying. Whether you're making short-haul or longer domestic flights, the 737-400 is a versatile and efficient airplane. See the Aircraft Information section of Help for tips on flying this aircraft. Model PaulHaak Paint Tony Madge
[fltsim.1]
title=HJG B737-400 LOT POlish Airlines ("80th Anniversary") 2010
sim=HJG_737-400
model=
panel=
sound=
texture=lot_polish_80th_2010_45d_sp-llc
kb_checklists=
ui_manufacturer=Boeing
ui_type=737-400
ui_variation=LOT POlish Airlines - "80th Annoversary" (2010)
atc_heavy=0
atc_id=SP-LLC
atc_airline=LOT
atc_flight_number=734
atc_type=Boeing
atc_model=734
description=From the most successful family of jetliners ever built comes the 737-400. This can be your entry into virtual airline flying. Whether you're making short-haul or longer domestic flights, the 737-400 is a versatile and efficient airplane. See the Aircraft Information section of Help for tips on flying this aircraft. Textures by Paul HAAK
[fltsim.2]
title=HJG B737-400 VARIG Brasilan Airlines 2005
sim=HJG_737-400
model=
panel=
sound=
texture=varig_2005_48e_pp-vtn
kb_checklists=
ui_manufacturer=Boeing
ui_type=737-400
ui_variation=VARIG Brasilan Airlines 2005
atc_heavy=0
atc_id=PP-VTN
atc_airline=VARIG
atc_flight_number=734
atc_type=Boeing
atc_model=734
description=From the most successful family of jetliners ever built comes the 737-400. This can be your entry into virtual airline flying. Whether you're making short-haul or longer domestic flights, the 737-400 is a versatile and efficient airplane. See the Aircraft Information section of Help for tips on flying this aircraft. Textures by Paul HAAK
[fltsim.3]
title=HJG B737-400 British Midland (1988)
sim=
HJG_737-400model=
panel=
sound=
texture=hjg_b737-400_bmi_g-obme_1988
visual_damage=1
kb_checklists=Boeing737-400_check
kb_reference=Boeing737-400_ref
atc_id=G-OBME
atc_airline=MIDLAND
atc_flight_number=734
ui_manufacturer=Boeing
ui_type=737-400
ui_variation=British Midland (1988)
description=From the most successful family of jetliners ever built comes the 737-400. This can be your entry into virtual airline flying. Whether you're making short-haul or longer domestic flights, the 737-400 is a versatile and efficient airplane. See the Aircraft Information section of Help for tips on flying this aircraft. Model PaulHaak Paint Tony Madge
[fltsim.4]
title=HJG B737-400 KLM (1990)
sim=HJG_737-400
model=
panel=
sound=
texture=hjg_b737-406_klm_ph-bdr_1990
visual_damage=1
kb_checklists=Boeing737-400_check
kb_reference=Boeing737-400_ref
atc_id=PH-BDR
atc_airline=KLM
atc_flight_number=734
ui_manufacturer=Boeing
ui_type=737-400
ui_variation=KLM (1990)
description=One should hardly be surprised that the world's most prolific manufacturer of commercial aircraft is also the producer of the world's most popular jetliner. The 737 became the best-selling commercial jetliner worldwide when orders for it hit 1,831 in June 1987 (surpassing Boeing's own 727 as the previous champ). However, it wasn't always that way\s in the first few years of production, there were so few orders that Boeing considered canceling the program. They didn't, and the airplane has more than proven itself in over three decades of service. Model PaulHaak Paint Tony Madge
