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- NATION, Page 20New Qualms About the DC-10In the wake of the Sioux City disaster, another jet crashes
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- If airline passengers during this busy traveling summer had
- qualms about flying aboard a DC-10, last week's drumbeat of new
- troubles gave them no consolation. Eight days after United Airlines
- Flight 232 crash-landed in Sioux City, Iowa, killing 111 of its 286
- passengers and crew, a Korean Air Lines DC-10 carrying 199 people
- plowed into an olive grove near Tripoli, Libya. As was the case in
- Sioux City, a majority of those aboard the KAL flight survived, but
- as many as 80 were killed. The same day in Los Angeles a United
- DC-10 had another close call: though the pilot reported a hydraulic
- leak, he managed to bring in his plane without incident. One day
- later in Toronto, a Canadian International Airlines DC-10 en route
- from Rio de Janeiro landed safely after losing one of its ten
- landing wheels.
-
- Though the DC-10 had suffered no serious problems since a
- string of crashes in the late 1970s, superstitious air travelers
- were beginning to wonder if the plane was now simply too spooked
- to fly. No less troubled was the International Airline Passengers
- Association, a Dallas-based consumer group that claims 110,000
- members. After the Sioux City crash, the I.A.P.A. demanded that the
- Federal Aviation Administration investigate possible design flaws
- in the DC-10 and ground the nation's fleet if necessary.
-
- The I.A.P.A. pointed out that at least 17 DC-10s have been
- wrecked since the plane began flying 18 years ago; that amounts to
- 3.8% of the 445 DC-10s built by McDonnell Douglas, a higher
- percentage than that recorded by comparable superjets like the
- Lockheed L-1011 (1.2%). Both the FAA and McDonnell Douglas rejected
- the I.A.P.A.'s request. Said FAA spokesman John Leyden: "There's
- nothing that's come out of the Sioux City accident indicating a
- basic design flaw that would warrant such an action."
-
- The Tripoli crash may not have been caused by a mechanical
- malfunction. Flight 803 left Seoul and made trouble-free stops in
- Thailand and Saudi Arabia. Approaching Tripoli's airport in a dense
- morning fog, the pilot decided to land, even though only an hour
- earlier an arriving Soviet Aeroflot jet had prudently detoured to
- Malta. The KAL plane missed the runway by more than a mile,
- cartwheeled and slammed into two cars and two farmhouses.
-
- The Toronto and Los Angeles scares were the sort of mishaps
- that have always plagued air travel; pilot error, leaks, blown
- tires and engine shutdowns are frequent occurrences. But the Flight
- 232 disaster was of a different order altogether: a loss of all
- three of the plane's redundant hydraulic systems at the same
- moment, rendering it almost impossible to control. FAA
- investigators are combing a 16-sq.-mi. area of Iowa cornfields for
- pieces of a fan disk of the plane's No. 2 engine, which was mounted
- high on the DC-10's tail. They hope that examining the fan disk
- will help them determine what caused an explosion that sent shards
- of metal through the plane's tail section, severing all three
- hydraulic lines.
-
- The nagging possibility of an inherent design flaw in the DC-10
- remains. In 1979 an American Airlines DC-10 taking off from Chicago
- lost its left-wing engine, tearing out its hydraulic lines; the
- plane crashed, killing 273. The I.A.P.A. won a federal court order
- that forced the FAA to ground the entire DC-10 fleet for
- inspection. The planes were inspected and sent aloft again five
- weeks later.