A319 captain reported an uncommanded climb during approach to cle airport.

Attributes
ACN	1695759
Time
Date	201910
Local Time Of Day	1201-1800
Place
Locale Reference	CLE.Tower
State Reference	OH
Environment
Flight Conditions	IMC
Aircraft 1
Make Model Name	A319
Operating Under FAR Part	Part 121
Flight Phase	Initial Approach
Flight Plan	IFR
Component
Aircraft Component	FMS/FMC
Person 1
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Instrument
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Altitude Excursion From Assigned Altitude Deviation - Procedural Clearance

Narrative:

I'm not sure what caused the aircraft to start climbing; but wanted to submit a report for tracking purposes in case there is an aircraft specific issue or something related to how the flight management system flies this particular arrival and transition.

Original NASA ASRS Text

Title: A319 Captain reported an uncommanded climb during approach to CLE airport.

Narrative: I'm not sure what caused the aircraft to start climbing; but wanted to submit a report for tracking purposes in case there is an aircraft specific issue or something related to how the flight management system flies this particular arrival and transition.

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.