Falcon 900 captain reported that a thrust reverser was disabled without the proper documentation.

Attributes
ACN	1471175
Time
Date	201708
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Falcon 900
Operating Under FAR Part	Part 91
Flight Phase	Taxi
Flight Plan	IFR
Component
Aircraft Component	Turbine Reverser
Person 1
Function	Captain
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Instructor Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 60 Flight Crew Total 5690 Flight Crew Type 500
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural FAR Deviation - Procedural Published Material / Policy

Narrative:

After checking all maintenance logs and MEL log for open items; I determined the aircraft was airworthy for a dispatched reposition flight. While taxiing and performing a thrust reverser (TR) check; the TR was discovered to have been disabled and placarded inop even though there was no related paperwork for that item. We proceeded with the flight and after landing discovered that the work had been performed but was undocumented maintenance. I alerted our maintenance department to the discrepancy.

Original NASA ASRS Text

Title: Falcon 900 Captain reported that a thrust reverser was disabled without the proper documentation.

Narrative: After checking all maintenance logs and MEL log for open items; I determined the aircraft was airworthy for a dispatched reposition flight. While taxiing and performing a Thrust Reverser (TR) check; the TR was discovered to have been disabled and placarded inop even though there was no related paperwork for that item. We proceeded with the flight and after landing discovered that the work had been performed but was undocumented maintenance. I alerted our maintenance department to the discrepancy.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.