Air China flight CA-4414 had to return and make an emergency landing in Kunming, China, on February 26th.
The plane took off for Chengdu, China, but had to return shortly afterwards after the crew reported unusual noises coming from a cargo hold.
The plane landed uneventfully. Everyone aboard remained safe.
The cargo hold was thoroughly inspected but no indication of any movement or noise was found.
The plane was cleared to depart again.