Air Transport World

Waiting for TAWS.

There is good news and bad news for Regional airlines that continue to question the need for an Enhanced Terrain Alerting and Warning System (TAWS). The good news is that the final rule requiring TAWS retrofit within four years for all 6-passenger and larger turbine-powered aircraft won't come out until March 2000, according to sources at FAA. The agency uses the acronym TAWS instead of the more commonly-accepted GPWS (Ground Proximity Warning System). Such a delay most likely will increase the time allowed for retrofit beyond the proposed deadline of 2005.

FAA Administrator Jane Garvey had promised a final rule in early 1999. But comments from operators and avionics manufacturers about the cost of the system, the requirement that even small aircraft comply, and the fact that the rule was based on the only system certificated to date have caused the agency to rethink its proposal. …

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