LOS ANGELES, California (CNN) -- Landings were almost back to normal Monday at Los Angeles International Airport an hour after the instrument landing system failed, air traffic control officials said.

The failure initially forced air traffic controllers to line up arriving flights in single file on one of two runways.

Controllers eventually restored both runways to use by reversing the direction of approach for landings, according to Federal Aviation Administration spokesman Allen Kenitzer.

With planes approaching from the west -- over the Pacific Ocean -- the guidance system is not needed since the visibility is better, Kenitzer said. The usual approach to the Los Angeles airport is from the east, he said.

With the adjustment, about 54 planes can land each hour, near the normal flow of 58 an hour, Kenitzer said.

No major delays in plane arrivals have been reported, according to airport terminal operations manager Lee Hatayama.

The landing system, which guides pilots to runways when visibility is poor, failed just before 9:15 a.m. PT (12:15 p.m. ET), Kenitzer said.

It was not immediately known what caused the guidance system to fail or how long repairs are expected to take.

Teen accidentally kills mom during driving lesson

FRANKLIN TOWNSHIP, New Jersey (AP) -- -- A 15-year-old girl accidentally struck and killed her mother while being taught how to parallel park, police said.

Investigator: Troops drank, golfed before Iraqi killings

BAGHDAD, Iraq (AP) -- U.S. soldiers accused of raping and murdering an Iraqi female drank alcohol and hit golf balls before the attack, and one of them grilled chicken wings afterward, an investigator told a U.S. military hearing Monday, citing a soldier's sworn statement.

South still sizzling

OKLAHOMA CITY, Oklahoma (AP) -- The heat wave that snapped last week for much of the nation is still cooking parts of the South and Southeast and heat advisories were issued Monday for Arkansas, Tennessee and Mississippi.

Large Alaskan oil field shut down

ANCHORAGE, Alaska (AP) -- In a sudden blow to the nation's oil supply, half the production on Alaska's North Slope was being shut down Sunday after BP Exploration Alaska, Inc. discovered severe corrosion in a Prudhoe Bay oil transit line.

Astronaut Glenn, wife leave hospital

COLUMBUS, Ohio (AP) -- Former senator and astronaut John Glenn and his wife, Annie, were discharged Sunday from a hospital where they had been recovering from what he called a "very serious" car accident.