Hey fellow TriStar fans,

I’ve been deep-diving into the new IniBuilds L-1011 for MSFS 2024 since release day, testing it thoroughly against the real Delta Airlines L-1011 Pilots Operating Manual (normal, abnormal & emergency sections).

I’m sharing this as constructive feedback so the community knows exactly what to expect right now. This detailed list should help highlight areas that still need attention. If any of the IniBuilds team or beta testers see this and want screenshots, more context from the Delta POH, or a walk-through of the real procedures, feel free to reach out — I’d be happy to share everything I’ve found.

Quick note: I had planned to start filming a full expert-level procedural tutorial series on this aircraft tomorrow on my youtube channel Joshua757, but with so many systems not behaving as they should per the real Delta manual, I am not sure if I should. 

Unfortunately, I’m quite disappointed with the current systems depth. The visuals and flight model are solid, but it feels like the release may have been rushed. The aircraft was clearly not ready in my opinion. Here’s the full list of discrepancies I found (all verified against the Delta POH):

Electrical / APU / Standby Power

• Battery condition light does not illuminate when the battery is the only source for standby power
• APU low oil pressure light doesn't seem to be modelled – should extinguish when APU power is turned on
• APU Logic Incorrect – “Don’t Load” illuminates before and during doors in transit. Actual sequence is doors in transit for 10 seconds then “Don’t Load”
• No option for APU field and gen flow bars to automatically illuminate as in the real aircraft
• APU KW/KVAR gauge reads zero all the time
• Engine Gen KW/KVAR gauge reads zero the whole time regardless of load

Fuel System

• APU starts even with Engine 2 tank valve unlatched and Emergency Shut off doesn't work
• Low pressure warning lights not simulated when tank boost pumps are on
• Fuel quantity test – total fuel and Gross WT indicator does not increase when test is pressed
• Blue disagreement lights for tanks 1A and 3A XFR, their backup gravity XFR, the cross feeds and tank valves are not modelled
• Tank 1A and 3A low lights don’t work during the test
• Fuel (low) pressure lights do not illuminate when tank pumps are unlatched
• Fuel switch enrich is not modelled

Pneumatics / Air Systems

• Pack flow bars and Hot air when latched illuminate even with APU bleed off
• High press flow bars illuminate regardless of whether there’s a pneumatic supply or not
• Avionics Air should read OVBD OVBD when on the ground
• Wing anti ice manual test with pneumatic pressure – does not produce expected OPEN indication

Fire / Smoke / Warning Systems

• S/O Panel Lights test incorrect – Fire detection loop test and wheel well fire test should not illuminate
• No APU fault flags remain after S/O panel lights test
• Engine TURB Cooling air test incorrect – pressing A and B test switches individually should not illuminate the lights
• Nacelle Pylon test does not cause the corresponding warning 'NACELLE OVHT' to display on the pilots Annun Panel
• Cargo compartment fire test button does not cause aural tone
• Smoke detection panel not modelled
• Galley smoke test not modelled
• Fault isolation data display not modelled

Hydraulics / Flight Controls / Other Systems

• Hydraulic ATM test position does appear to work
• With no hydraulics: 4 STABILIZER INOP, 2 YAW SAS FAIL and HYDRAULIC LIMITER PUSH lights should illuminate
• Brake Accum lights don’t appear to work
• Engine gen field close switches and generator breaker close switches can’t be armed beforehand for auto paralleling on start as in the real aircraft
• PRESS IND test – press pointers do not drive to the 9 o’clock position
• Engine VIB FLTR press light (pilots annun panel) does not illuminate when vibration monitor test button is pressed
• FLT recorder trip date not modelled
• Cabin pressure control fault light does not illuminate during manual outflow valve test
• Anti skid test norm and alt does not indicate test pattern
• Stall test does not work
• Glareshield DME test does not cause the fail flag/four dashes/four zeros test pattern
• Autopilot test – wailer does not automatically silence after two seconds
• Flight director mode FD synch is not modelled
• CVR test doesn't work
• Can’t do altitude alert test
• Pitch and roll disconnect levers do not light up when pulled
• Disabling the autospoiler by pressing the button on the spoiler does not cause the DLC fail lights to illuminate on the overhead
• Slat lock doesn't depressurize the servo that controls the slats
• Hydraulics – when engine driven pump depressurized, the ATMs even on auto don’t takeover to restore hydraulic pressure

What has your experience been with the systems so far? Feel free to drop your thoughts below.

Cheers,

Joshua757

Aeronautical Engineering 1st Class Honors Graduate and Flight Simmer 

Attatched below is one example of when the ATM's are in Auto but do not restore Hydraulic Pressure when the Engine Driven Pumps are shut off.

Also 
 

• Mechanical Gear release compartment – not modelled

Hello, a lot of these are logged and known about for the team, I saw that you left a question for other users but for the sake of keeping this thread cleanly focused on the list you provided, I will be locking this thread, however you are welcome to ask fellow users in either the Tristar "Other" Section, or the General Discussion section that way I'll be able to keep this area focused. Thank you for understanding and I appreciate you gathering all of this info.