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An large transport aircraft descending into las is cleared for a visual approach during nighttime and receives a GPWS warning during the descent.
| Attributes | |
| ACN | 409463 |
| Time | |
| Date | 199807 |
| Day | Mon |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : las |
| State Reference | NV |
| Altitude | msl bound lower : 4200 msl bound upper : 5300 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tower : las |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent other |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 240 flight time total : 11000 flight time type : 1400 |
| ASRS Report | 409463 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | other anomaly other other spatial deviation |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : took evasive action flight crew : regained aircraft control other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
Narrative:
On a downwind leg to runway 1R at las, an aircraft was pointed out on final approach to runway 1R. We reported aircraft in sight. We were cleared to 5000 ft and then cleared for a visual approach behind that aircraft. After turning a right base leg and descending below 5000 ft to follow that traffic, we received a GPWS alert of 'terrain, terrain.' we applied maximum thrust and climbed to 5300 ft. When alert halted we continued to a normal landing to runway 1R. Contributing factors: I believe that lack of familiarity with the area to the south of the airport and being cleared for a visual approach without any altitude advisories until turning final approach allowed us to get lower than we should have been.
Original NASA ASRS Text
Title: AN LGT ACFT DSNDING INTO LAS IS CLRED FOR A VISUAL APCH DURING NIGHTTIME AND RECEIVES A GPWS WARNING DURING THE DSCNT.
Narrative: ON A DOWNWIND LEG TO RWY 1R AT LAS, AN ACFT WAS POINTED OUT ON FINAL APCH TO RWY 1R. WE RPTED ACFT IN SIGHT. WE WERE CLRED TO 5000 FT AND THEN CLRED FOR A VISUAL APCH BEHIND THAT ACFT. AFTER TURNING A R BASE LEG AND DSNDING BELOW 5000 FT TO FOLLOW THAT TFC, WE RECEIVED A GPWS ALERT OF 'TERRAIN, TERRAIN.' WE APPLIED MAX THRUST AND CLBED TO 5300 FT. WHEN ALERT HALTED WE CONTINUED TO A NORMAL LNDG TO RWY 1R. CONTRIBUTING FACTORS: I BELIEVE THAT LACK OF FAMILIARITY WITH THE AREA TO THE S OF THE ARPT AND BEING CLRED FOR A VISUAL APCH WITHOUT ANY ALT ADVISORIES UNTIL TURNING FINAL APCH ALLOWED US TO GET LOWER THAN WE SHOULD HAVE BEEN.
Data retrieved from NASA's ASRS site as of July 2007 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.