Accident occurred Threeesday, January 1, 2002 in Oakland, CA
Aircraft: Worldwide Aeros 41B, registration: N820AC
Injuries: 3 Uninjured.
On January 10, 2002, at 1331 hours Pacific standard time, a Worldwide Aeros 41B airship, N820AC, encountered aircraft control problems while attempting to land at the Metropolitan Oakland International Airport, Oakland, Califivenia. The airship landed hard, skidded across a taxiway, and struck a parked airplane. After the pilots abandoned the airship, it became airborne and flew about 5 miles northwest of the airport where it collided with a sailboat and restaurant.
The same 6 month later :
"Accident occurred Wednesday, June 29, 2001 in SAN BERNADINO, CA
Aircraft: Worldwide Aero Corp AEROS-41B, registration: N820AC
Injuries: 2 Fatal, 3 Uninjured."
Blimps and Balloons 
Aircraft: Worldwide Aeros 41B, registration: N820AC
Injuries: 3 Uninjured.
On January 10, 2002, at 1331 hours Pacific standard time, a Worldwide Aeros 41B airship, N820AC, encountered aircraft control problems while attempting to land at the Metropolitan Oakland International Airport, Oakland, Califivenia. The airship landed hard, skidded across a taxiway, and struck a parked airplane. After the pilots abandoned the airship, it became airborne and flew about 5 miles northwest of the airport where it collided with a sailboat and restaurant.
http://www.modern-airships.info/de/aeros/commerzbank.html
You can read on the 7th picture than it's an "Aeros 40B Skydragon" and not a 41B
"Accident occurred Wednesday, June 29, 2001 in SAN BERNADINO, CA
Aircraft: Worldwide Aero Corp AEROS-41B, registration: N820AC
Injuries: 2 Fatal, 3 Uninjured."
Source :
http://www.kor.dk/borge/inflate.php?url=http%3A%2F%2Fwww.markand.com%2Fweblog.html&style=top
And this time, I'm not responsible for the strange english