All Nippon Airways (ANA) and Japan Airlines (JAL) have not received any directives from Japan's civil aviation regulator after the US Federal Aviation Administration's (FAA) decision to ground all US-registered Boeing 787s.
Both carriers say that checks on their 787s are ongoing, and that the aircraft remain grounded on 17 January. Neither has come to a decision on whether to ground the aircraft indefinitely following FAA's directive.
"We acknowledge the FAA's statement and we will work closely with Boeing and the Japanese transport ministry. The decision on whether to ground the aircraft further will have to come from the ministry," says an ANA spokesman.
A JAL spokeswoman would only say that the media will be notified "as and when" a decision is made on whether to ground the 787s in its fleet beyond today.
Both carriers' checks are focused on the batteries on the 787s.
The FAA's directive comes after two incidents involving battery failures.
An ANA 787 had to make an emergency landing on 16 January after a battery malfunction, a week after a fire erupted in the battery compartment of a parked JAL 787 in Boston.
ANA and JAL are the largest 787 operators with a combined fleet of 24 787-8s and a further 87 on order.