NCA - Nippon Cargo Airlines (KZ, Tokyo Narita) has delayed its proposed resumption of flight operations beyond the originally anticipated date of June 24.

The Japnese freight carrier suspended all flights last weekend to allow it to verify the maintenance logs for its entire fleet of eight B747-8(F)s and three B747-400(FSCD)s. The move came after discrepancies in the maintenance logs for B747-8(F) JA14KZ (msn 37394) were uncovered during a routine inspection.

In an update issued June 22, NCA said the verification process was taking longer than anticipated and that the first aircraft may only return to service in several weeks' time.

"With regard to our aircraft whose operations were temporarily suspended on June 17, 2018, we are currently checking their operational soundness," it said.

"Regarding our work's compliance, it will take more time than initially expected to complete a detailed due diligence. We anticipate it will take at least several weeks to check the operational soundness of the first aircraft and return it to operation. As for the remaining planes, as soon as their soundness is confirmed, we plan to return them to service sequentially."