Oakland is a big hub for FedEx and they have a lot of aircraft movements through the airport on a normal day. While its use in passenger service is pretty much done, the MD-11 is still a regular on the freight circuit and FedEx is by far the largest operator. When walking along the shore in Hayward, I saw a couple of MD-11s come in. Normally, the jets are configured for landing by the time they come over you in Hayward. However, one MD-11 seemed to be coming in with a little more urgency. As it approached me, it had flaps deployed but no gear. Then, as it came over, the gear started to travel. There is a reasonable distance to go to the airport so I am not suggesting that the approach was not stabilized at the right time but it was a little late.