Narrative:

While being vectored for a visual approach to runway 34L at rno; we then were given another heading. This transmission was slightly blocked; but after the captain and I confirmed to each other that the heading was 170 degrees to the best of my recollection. I then read back that clearance to ATC with no reply. At some point; we were given a descent to 7;000 ft MSL (to the best of my recollection). Approximately one minute later ATC asked us our heading. I replied '170'. Approach said we should fly 270 and climb immediately to 10;000 ft MSL since we were approaching mountainous terrain. We complied and then uneventfully joined a visual approach and landing.

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Original NASA ASRS Text

Title: An Air Carrier Crew misunderstood a RNO TRACON heading assignment and flew toward mountainous terrain before a correction was issued by ATC.

Narrative: While being vectored for a visual approach to Runway 34L at RNO; we then were given another heading. This transmission was slightly blocked; but after the Captain and I confirmed to each other that the heading was 170 degrees to the best of my recollection. I then read back that clearance to ATC with no reply. At some point; we were given a descent to 7;000 FT MSL (to the best of my recollection). Approximately one minute later ATC asked us our heading. I replied '170'. Approach said we should fly 270 and climb immediately to 10;000 FT MSL since we were approaching mountainous terrain. We complied and then uneventfully joined a visual approach and landing.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.