PA-23 pilot reported landing gear extension issue and engine failure on short final.

Narrative:

Upon my arrival into ZZZ; I attempted to lower my landing gear and noticed my front nose wheel did not extend fully in the mirror and I was not getting an indication light. I was on final and waited until a minute to see if it would eventually lock in place. I advised ZZZ tower that I needed to conduct a right 360 after they already issued me a clearance to land and informed them that I was having a gear issue. While conducting a 360 steep turn; I was able to get the front nose wheel to lock and a green indication light came on. After returning to final and tower issuing me another clearance to land; I reduced my throttles and set them for landing but noticed my RPM gauges were stuck and I was unable to see what my power settings were. I reduced my throttles to idle as I was approximately 300 yards away from runway xx at which time my right engine failed. I was able to get the aircraft safely into ground effect and taxied to the local FBO. I am not sure what caused the engine failure; after talking with a mechanic he believes it is a fuel/mixture ratio; however; I do believe the gear issue is most likely low hydraulic pressure which needs to be addressed.

Original NASA ASRS Text

Title: PA-23 Pilot reported landing gear extension issue and engine failure on short final.

Narrative: Upon my arrival into ZZZ; I attempted to lower my landing gear and noticed my front nose wheel did not extend fully in the mirror and I was not getting an indication light. I was on final and waited until a minute to see if it would eventually lock in place. I advised ZZZ tower that I needed to conduct a right 360 after they already issued me a clearance to land and informed them that I was having a gear issue. While conducting a 360 steep turn; I was able to get the front nose wheel to lock and a green indication light came on. After returning to final and tower issuing me another clearance to land; I reduced my throttles and set them for landing but noticed my RPM gauges were stuck and I was unable to see what my power settings were. I reduced my throttles to idle as I was approximately 300 yards away from Runway XX at which time my right engine failed. I was able to get the aircraft safely into ground effect and taxied to the local FBO. I am not sure what caused the engine failure; after talking with a mechanic he believes it is a fuel/mixture ratio; however; I do believe the gear issue is most likely low hydraulic pressure which needs to be addressed.

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.

Attributes
ACN	1658539
Time
Date	201906
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	PA-23-250 Aztec
Operating Under FAR Part	Part 91
Flight Phase	Final Approach
Route In Use	Visual Approach Direct
Flight Plan	VFR
Component
Aircraft Component	Engine
Person 1
Function	Captain Pilot Flying Single Pilot
Qualification	Flight Crew Commercial Flight Crew Flight Instructor Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 191 Flight Crew Total 900 Flight Crew Type 170
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy