I flew on Finnair business class in early November from BKK to HEL to LHR and then onto YUL. All one ticket and all coded as Finnair flights and "I" class, but the segment to Montreal was on BA. Received credit for the first and last but not for HEL to LHR. I submitted the credit online via AA website with all appropriate info. and finally today the flight shows up on my account page with no mileage and the details portions showing as ineligible. Called AA desk who tells me after looking into this that flights in the 1000 series are ineligible (flight number was 1331) . This was an A350 Finnair plane and not some regional carrier etc. The agent admitted that nothing is stated on their website under the earning miles page, with Finnair, nor on Finnair's website, and that it should be. Fortunately I earned enough to re qualify for platinum (just) and if I had counted on these miles to qualify, I would be out of luck as I do not have any travel plans this month. Anyone else had similar experience?