ASRS CALLBACK includes excerpts from ASRS incident reports with supporting commentary. In addition, CALLBACK may contain summaries of ASRS research studies and related aviation safety information. CALLBACK is one of the ASRS's most effective tools for improving the quality of human performance in the National Aviation System (NAS) at the grass roots level.

Wednesday, January 19, 2011

NASA ASRS CALLBACK Issue 372

CALLBACK
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From NASA's Aviation Safety Reporting System

Issue 372

January 2011
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PIREPS: Pilot Reports Revisited

At the beginning of their flying careers, most pilots quickly learn the value of PIREPS – "pilot reports" of actual inflight weather conditions that are provided by pilots, for other pilots. These near real-time weather reports help pilots anticipate inflight conditions, verify forecasts, and fill in the weather picture while en route.

PIREPS provide information on cloud tops and layers, precipitation, turbulence, icing, visibility, temperature, wind speed and direction, and other weather-related conditions. They are generally given to FSS, Flight Watch (122.0), or ATC for quick dissemination, but may also be transmitted through Dispatchers and other aircraft.

This month we'll take a look at how PIREPS can help pilot decision-making when they are in the system and available—and how the absence of timely PIREPS, or failure to request them for a weather briefing, can lead to unpleasant or hazardous flight experiences.

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