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Medium large transport aircraft on night approach and cleared visual for runway 28R while another air carrier was cleared for runway 28L. Because of high terrain close to the approach path to the right runway, flight crew received a GPWS terrain warning after commencing a descent for the visual approach. Took evasive action, notified the controller who provided vectors for runway 28L.
| Attributes | |
| ACN | 347610 |
| Time | |
| Date | 199609 |
| Day | Mon |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : boi |
| State Reference | ID |
| Altitude | msl bound lower : 6400 msl bound upper : 8000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : boi |
| 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 : approach |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time total : 7500 flight time type : 4000 |
| ASRS Report | 347610 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | other anomaly other other spatial deviation |
| Independent Detector | other flight crewa other other : unspecified cockpit |
| Resolutory Action | controller : issued new clearance flight crew : took evasive action flight crew : exited adverse environment |
| Consequence | Other |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other |
Narrative:
Approaching boi from east under approach control at night. Approximately 12 DME on the 90 degree radial at 7000 ft MSL we were given a visual to runway 28R after reporting it in sight. Started our descent. At approximately 6400 ft received terrain warning, climbed to 8000 ft advised ATC. Given a right turn to 150 degrees then a visual to runway 28L. Landing normal. How the problem arose. Another air carrier flight was on our left, rather than one of us going first, approach cleared both aircraft to land runway 28L for him and runway 28R for us. Need an area chart depicting radials and DME from boi VOR at which you don't go below unless day VFR regardless of any ATC clearance.
Original NASA ASRS Text
Title: MLG ACFT ON NIGHT APCH AND CLRED VISUAL FOR RWY 28R WHILE ANOTHER ACR WAS CLRED FOR RWY 28L. BECAUSE OF HIGH TERRAIN CLOSE TO THE APCH PATH TO THE R RWY, FLC RECEIVED A GPWS TERRAIN WARNING AFTER COMMENCING A DSCNT FOR THE VISUAL APCH. TOOK EVASIVE ACTION, NOTIFIED THE CTLR WHO PROVIDED VECTORS FOR RWY 28L.
Narrative: APCHING BOI FROM E UNDER APCH CTL AT NIGHT. APPROX 12 DME ON THE 90 DEG RADIAL AT 7000 FT MSL WE WERE GIVEN A VISUAL TO RWY 28R AFTER RPTING IT IN SIGHT. STARTED OUR DSCNT. AT APPROX 6400 FT RECEIVED TERRAIN WARNING, CLBED TO 8000 FT ADVISED ATC. GIVEN A R TURN TO 150 DEGS THEN A VISUAL TO RWY 28L. LNDG NORMAL. HOW THE PROB AROSE. ANOTHER ACR FLT WAS ON OUR L, RATHER THAN ONE OF US GOING FIRST, APCH CLRED BOTH ACFT TO LAND RWY 28L FOR HIM AND RWY 28R FOR US. NEED AN AREA CHART DEPICTING RADIALS AND DME FROM BOI VOR AT WHICH YOU DON'T GO BELOW UNLESS DAY VFR REGARDLESS OF ANY ATC CLRNC.
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.