A320
Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 240; Flight Crew Total 14000; Flight Crew Type 1327
Aircraft Equipment Problem Less Severe
General Maintenance Action
Aircraft
At cruise began getting nacelle overheat indications on number one engine. Suspected hot air leak and temps ranged from 320 to 385c. No other engine indications. Decided to proceed to [destination] for landing. Upon landing shut left engine down; inspected by ground fire and maintenance crews. Taxied to gate on right engine.
Upon reaching our cruising altitude of FL220 my Captain and I observed the engine system page continuously popping up and then disappearing; and upon bringing up the engine page noticed the NAC temperature on the #1 engine fluctuating between normal and very high. The fluctuation continued with temperature indications reaching as high as 385c. Both my Captain and I agreed that the safest course of action would be to [divert to an alternate]. We decided the most suitable airport would still be [destination] since there were no other real good airports along our route of flight. We continued to [destination] whereupon landing we had personnel meet the aircraft to inspect the left engine. The engine was observed normal so we continued to the gate single engine using the #2 engine.
A320 flight crew reported continuing to destination after noting high nacelle temperature indication on #1 engine.