Nippon Cargo Airlines (NCA) has said that it will ground its fleet of aircraft for at least one more week.
The entire grounding of flights started on June 17 after discrepancies in the maintenance logs for one of its eight B747-8F aircraft were uncovered during a routine inspection.
NCA had anticipated that the suspension would last at least one week. However, the carrier has extended the suspension of flights as the verification of maintenance records will reportedly take longer than originally expected.
The Japanese cargo specialist said in a statement that an inspection on June 14 showed a mismatch between the amount of lubricating oil present onboard flight JA14KZ and that recorded in the aircraft's maintenance logs. The event was immediately reported to the Japanese Ministry of Land, Infrastructure, Transport and Tourism (MLITT).
In a customer update, NCA said: “Since we will not restart the network until we can conclude the record checking process, the first aircraft will resume operation in more than another week. The rest of the aircraft operation will resume in sequence as soon as the aircraft safety is confirmed.
“We sincerely apologise for the inconvenience and worries that we caused our customers. We will do our utmost effort to check safety for resuming operation as quickly as possible.”