UTX United Technologies Corporation

By Andy Pasztor 

U.S. air-safety experts expect to have only a limited role, focused strictly on engine-related technical issues, as they assist the Egypt-led probe into the crash of a Russian jet in the Sinai Peninsula two weeks ago, according to a senior U.S. accident investigator.

Since the Oct. 31 crash that killed all 224 aboard the Airbus A321, Egyptian authorities have received some routine technical help from the U.S. National Transportation Safety Board regarding software required to retrieve information from the cockpit voice recorder.

But the safety board expects its future participation to be restricted to examining performance of the plane's engines, the senior NTSB official said Friday. The engines were manufactured by the Pratt & Whitney unit of United Technologies Corp.

At this point, U.S. crash experts don't expect to gain access to the crash site, according to the official, or to participate in examining any of the wreckage or analysis of the black box recorders. It isn't clear whether the safety board will get a draft copy of formal accident reports prepared by Egyptian authorities in conjunction with representatives from four other countries that are full-fledged participants in the continuing probe.

Based on preliminary examination of the wreckage and data retrieved from the plane's recorders, the engines aren't suspected of causing the crash, according to people familiar with the matter.

Write to Andy Pasztor at andy.pasztor@wsj.com

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(END) Dow Jones Newswires

November 13, 2015 16:40 ET (21:40 GMT)

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