Dan Fouts passed for 284 yards and three touchdowns and Chuck Muncie rushed for 93 yards and two more scores as San Diego defeated Kansas City, 42-31, today. The victory gave the Chargers sole possession of first place in the AFC West.

The San Diego defense forced seven turnovers. With San Diego leading, 35-31, the defense put the game away when end Leroy Jones intercepted a Bill Kenney pass at the Kansas City 11, returned it to the five and lateraled it to tackle Gary Johnson who took it the rest of the way for an insurance touchdown with 1:53 left.

Fouts completed 22 of 43 passes but failed to break his NFL record for consecutive 300-yard passing games. He had tied it at four last week. He had 281 yards through three quarters but only completed one of his final six passes in the last period. He also threw three interceptions.

Fouts threw touchdown passes of 13 yards to Kellen Winslow, 29 yards to James Brooks and 12 yards to Eric Sievers as the Chargers built a 28-7 lead late in the first half.

Muncie added a one-yard touchdown run in the second quarter and a three-yard scoring run in the third in his 17 carries. He also caught nine passes for 91 yards as the Chargers beat Kansas City for the fifth straight time.

Kenney connected with Al Dixon on a seven-yard pass with 1:19 left in the first half to cut the San Diego lead to 28-14. The Chiefs pulled to within a touchdown on a three-yard scoring run by Ted McKnight at 4:22 of the third period.

Muncie restored the 14-point lead with his three-yard scoring run three minutes later. Kansas City again cut the deficit to seven on a four-yard run by rookie Billy Jackson late in the third period.

The Chiefs moved to the San Diego 18 on their first possession of the final quarter but two incomplete Kenney passes forced them to settle for a 37-yard field goal by Nick Lowery.

Kansas City's next two chances ended in interceptions by Jones and Willie Buchanon. Buchanon finished the day with two interceptions and a fumble recovery.

The loss offset a brilliant showing by Kansas City wide receiver J.T. Smith, who caught nine passes for 140 yards.