Must disagree. Raytheon does have a Configuration Deviation List for the 1900D, and though it's a short and not very helpful list, it does exist. May I present the Beechcraft 1900D CDL in it's entirety. Drumroll, please:
Secondary External Airframe Parts
Environmental/ Air Conditioning:
1. Airframe-mounted louvers across the inlet to the Air Cycle Machine P/N 114-120052-67
Installed 9 Required 7
Remarks, Exceptions, and Limitations:
Two intake louvers may be missing provided no exhaust louvers are missing. One intake louver may be missing with zero or one exhaust louver missing.
2. Airframe-mounted louvers across the exhaust to the Air Cycle Machine. P/N 114-550120-17
Installed 4 Required 2
Remarks, Exceptions, and Limitations:
Two exhaust louvers may be missing provided no intake louvers are missing. One exhaust louver may be missing with zero or one intake louver missing.
3. Condenser Blower Aft Inlet Screen. P/N 114-550211-1, 114-550211-7
Installed 1 Required 0
Remarks, Exceptions, and Limitations:
The aft screen may be missing provided the forward screen is installed.
Lights:
1. Taxi Light Window. P/N 114-820063-47
Installed 1 Required 0