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Fai air traffic controller supervisor states discrepancies in magnetic variation use in the development of procedures at fairbanks has lead to faulty procedures.
| Attributes | |
| ACN | 834682 |
| Time | |
| Date | 200905 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | FAI.Airport |
| State Reference | AK |
| Aircraft 1 | |
| Make Model Name | No Aircraft |
| Person 1 | |
| Function | Approach |
| Qualification | Air Traffic Control Fully Certified |
| Events | |
| Anomaly | Deviation - Procedural Published Material / Policy |
Narrative:
The us terminal procedures effective 07may2009 to 02jul2009 depict fairbanks international runways heading 195.3 and 015.3 derived from a magnetic variable of 22.8 based on january 2005 magnetic variable calculation. The current magnetic variable for fairbanks international is 21.3. Terminal procedures are being published using out-of-date calculations and resulting in false data being published. Additionally in the same us terminal procedures publication missed approach procedures for RNAV (GPS) runway 2R and RNAV (GPS) X runway 1L depict flying runway heading (017) climbing to 4900 direct falux/divny (respectively) and hold. Due to terrain a diverse vectoring area has been established at fairbanks international airport of heading 032 clockwise through 197. The published missed approach procedures off these approaches are not consistent with the diverse vectoring area for the airport. I believe that the data being used to terps-out approach procedures; minimum vectoring altitudes; and diverse vectoring areas for fairbanks international airport are inaccurate; out of date and misinterpreted.
Original NASA ASRS Text
Title: FAI Air Traffic Controller Supervisor states discrepancies in magnetic variation use in the development of procedures at Fairbanks has lead to faulty procedures.
Narrative: The U.S. Terminal Procedures effective 07MAY2009 to 02JUL2009 depict Fairbanks International runways heading 195.3 and 015.3 derived from a magnetic variable of 22.8 based on January 2005 magnetic variable calculation. The current magnetic variable for Fairbanks International is 21.3. Terminal procedures are being published using out-of-date calculations and resulting in false data being published. Additionally in the same U.S. Terminal Procedures publication missed approach procedures for RNAV (GPS) RWY 2R and RNAV (GPS) X RWY 1L depict flying runway heading (017) climbing to 4900 direct FALUX/DIVNY (respectively) and hold. Due to terrain a diverse vectoring area has been established at Fairbanks International Airport of heading 032 clockwise through 197. The published missed approach procedures off these approaches are not consistent with the diverse vectoring area for the airport. I believe that the data being used to TERPS-out approach procedures; minimum vectoring altitudes; and diverse vectoring areas for Fairbanks International Airport are inaccurate; out of date and misinterpreted.
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.