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Boi controller reported vectoring below the MVA because of a slow climbing GA aircraft. The reporter listed the recent elimination of the dva as a contributing factor.
| Attributes | |
| ACN | 1028279 |
| Time | |
| Date | 201208 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | BOI.Airport |
| State Reference | ID |
| Aircraft 1 | |
| Make Model Name | Skylane 182/RG Turbo Skylane/RG |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Initial Climb |
| Flight Plan | IFR |
| Person 1 | |
| Function | Approach Departure |
| Qualification | Air Traffic Control Developmental |
| Events | |
| Anomaly | ATC Issue All Types Deviation - Procedural Published Material / Policy |
Narrative:
A C182 departed boise airport; runway 10L; on the 'boise 2 departure (BOI2).' approximately 5 miles off departure end; it appeared that the aircraft was straying north of the BOI2 SID track. I asked the pilot to verity she was established on the BOI2 departure. The pilot responded that she was; but she was having difficulty meeting the required climb gradient. I responded with 'roger.' she then told me she wasn't going to make it over the hill in front of her. I immediately vectored the aircraft 20 degrees right to avoid terrain (while below the MVA); and asked her to 'do her best through 067;' which is the published MVA. She was able to climb to her filed altitude and had no problems. Boise ATCT had; until approximately 1 month ago; a diverse vector area (dva) that allowed us to vector aircraft south of the airport below the MVA. The dva was especially useful for smaller/slower IFR aircraft. We could vector the slow aircraft south for faster; succeeding; departures. Further; aircraft were not required to meet an ATC climb rate of 420 ft/NM when being vectored below the MVA (while in the dva). I believe it is necessary to expedite the implementation of a new dva for boise ATCT.
Original NASA ASRS Text
Title: BOI Controller reported vectoring below the MVA because of a slow climbing GA aircraft. The reporter listed the recent elimination of the DVA as a contributing factor.
Narrative: A C182 departed Boise Airport; Runway 10L; on the 'Boise 2 Departure (BOI2).' Approximately 5 miles off departure end; it appeared that the aircraft was straying north of the BOI2 SID track. I asked the pilot to verity she was established on the BOI2 departure. The pilot responded that she was; but she was having difficulty meeting the required climb gradient. I responded with 'roger.' She then told me she wasn't going to make it over the hill in front of her. I immediately vectored the aircraft 20 degrees right to avoid terrain (while below the MVA); and asked her to 'do her best through 067;' which is the published MVA. She was able to climb to her filed altitude and had no problems. Boise ATCT had; until approximately 1 month ago; a Diverse Vector Area (DVA) that allowed us to vector aircraft south of the airport below the MVA. The DVA was especially useful for smaller/slower IFR aircraft. We could vector the slow aircraft south for faster; succeeding; departures. Further; aircraft were not required to meet an ATC climb rate of 420 FT/NM when being vectored below the MVA (while in the DVA). I believe it is necessary to expedite the implementation of a new DVA for Boise ATCT.
Data retrieved from NASA's ASRS site as of July 2013 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.