Cessna 414 pilot reported an engine failure.

Attributes
ACN	1643151
Time
Date	201905
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Chancellor 414A / C414
Operating Under FAR Part	Part 135
Flight Phase	Descent
Route In Use	Direct
Flight Plan	IFR
Person 1
Function	Pilot Flying Captain
Qualification	Flight Crew Commercial Flight Crew Multiengine Flight Crew Instrument
Events
Anomaly	Deviation - Procedural Published Material / Policy Inflight Event / Encounter Fuel Issue

Narrative:

I began to crossfeed from the right tank to left engine to correct a 50 lb imbalance. I forgot all about it. I asked for descent to 6;000 feet due to headwind. Passing 7;000 feet both engines suffered a partial power loss. I trouble shot and tried to restore power using various throttle; mixture settings. The right engine failed and was secured. I [advised ATC]. Passing 2;000 feet I finally noticed the right tank was empty and the left engine still on the right tank. I switched the left engine back to left tank; restored full power to left engine. I diverted to mke and landed. Everything PIC could have done wrong; he did.

Original NASA ASRS Text

Title: Cessna 414 pilot reported an engine failure.

Narrative: I began to crossfeed from the right tank to left engine to correct a 50 lb imbalance. I forgot all about it. I asked for descent to 6;000 feet due to headwind. Passing 7;000 feet both engines suffered a partial power loss. I trouble shot and tried to restore power using various throttle; mixture settings. The right engine failed and was secured. I [advised ATC]. Passing 2;000 feet I finally noticed the right tank was empty and the left engine still on the right tank. I switched the left engine back to left tank; restored full power to left engine. I diverted to MKE and landed. Everything PIC could have done wrong; he did.

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.