Join Date: Oct 2006
Location: London, UK
Programs: BA Gold, VS Silver, SQ Silver, IHG Plat Amb, Hilton Gold, Marriott Plat, Accor Silver, Radisson Prem
Posts: 16,872
Definitely print off the oneworld rules and argue your case at the desk. The JAL First Class lounge at FRA is most definitely a oneworld lounge, and therefore if you are flying on a oneworld carrier and are Emerald you should be allowed access.