Group 1 - On November 19, 2023, the flight HO1338 operated by Juneyao Airlines experienced a delay of over 6 hours due to mechanical failure [1][3] - The flight was originally scheduled to arrive in Shanghai at 23:45 GMT+8 but was delayed and eventually landed at 06:00 GMT+8 on November 20 [3] - A replacement Boeing 787-9 aircraft was dispatched to pick up the passengers after the initial aircraft encountered issues [3] Group 2 - Juneyao Airlines confirmed the delay was caused by a mechanical fault, but specific details regarding the fault have not been disclosed [3]

Core Points - On November 19, 2023, multiple users reported that the Juneyao Airlines flight HO1338 was delayed for over 6 hours [2] - The flight was originally scheduled to arrive in Shanghai at 23:45 on November 19 but eventually arrived 6 hours and 15 minutes late [2] - The aircraft initially assigned to the flight was a Boeing 787-9, which experienced a mechanical failure, leading to the delay [2] - A replacement Boeing 787-9 took off from Shanghai Pudong Airport at 00:38 on November 20 and arrived at Osaka Kansai Airport 1 hour and 35 minutes later to pick up the passengers [2] - Juneyao Airlines confirmed the delay was due to mechanical issues but did not disclose specific details about the fault [2]