A list of fatal helicopter crashes in the Iraq war:

— Jan. 26, 2005: A CH-53 Sea Stallion transport helicopter crashed in bad weather in western Iraq, killing at least 31 Marines aboard.

— Dec. 10, 2004: An AH-64 Apache attack helicopter collided with a UH-60 Black Hawk that was on the ground at an air base in Mosul, killing two U.S. soldiers and injuring four.

— Oct. 16, 2004: Two OH-58 Kiowa helicopters crashed in southwest Baghdad, killing two and wounding two. It was unclear whether hostile fire brought the aircraft down.

— April 11, 2004: Gunmen shot down an Apache attack helicopter in western Baghdad, killing its two crew members.

— Feb. 25, 2004: A Kiowa crashed in a river west of Baghdad, killing the two crewmembers on board. A witness saw a missile hit one of two helicopters in the area.

— Jan. 23, 2004: A Kiowa crashed near the northern town of Qayyarah, killing the two pilots. The cause of the crash was unclear.

— Jan. 8, 2004: A Black Hawk medevac helicopter crashed near Fallujah, killing all nine soldiers on board. A witness said a rocket hit the tail.

— Jan. 2, 2004: A Kiowa was shot down near Fallujah, killing its pilot and wounding another soldier.

— Nov. 15, 2003: Two Black Hawks crashed in Mosul, killing 17 soldiers and injuring five. The military said the helicopters collided during a likely rocket-propelled grenade attack.

— Nov. 7, 2003: A Black Hawk was downed near Tikrit, apparently by a rocket-propelled grenade, killing all six on board.

— Nov. 2, 2003: A Chinook transport helicopter was shot down near Fallujah, killing 16 and injuring 26. The military believed a SA-7 shoulder-fired missile struck an engine.

— May 19, 2003: A CH-46 Sea Knight transport helicopter crashed shortly after takeoff in the Shat al-Hillah Canal in Hillah, about 60 miles south of Baghdad, killing four Marines. Another Marine drowned trying to rescue them. The crash appeared to be accidental.

— May 9, 2003: A Black Hawk crashed near Samarra, killing three soldiers, in an apparent accident.

— March 20, 2003: A Sea Knight crashed in Kuwait, about nine miles from the Iraq border, killing eight British troops and four U.S. Marines. No hostile fire was reported in the area.