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BE200 first officer reported misinterpreting a NOTAM and found more equipment out of service than expected.
| Attributes | |
| ACN | 1583835 |
| Time | |
| Date | 201810 |
| Place | |
| Locale Reference | ZMP.ARTCC |
| State Reference | MN |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Super King Air 200 |
| Operating Under FAR Part | Part 135 |
| Flight Phase | Initial Approach |
| Flight Plan | IFR |
| Person 1 | |
| Function | First Officer |
| Qualification | Flight Crew Commercial Flight Crew Multiengine Flight Crew Instrument |
| Experience | Flight Crew Last 90 Days 99 Flight Crew Total 613 Flight Crew Type 55 |
| Events | |
| Anomaly | Deviation - Procedural Published Material / Policy Inflight Event / Encounter Other / Unknown |
Narrative:
During mission planning for a flight; my captain and I saw the NOTAM in foreflight for 'navigation ILS runway 31 localizer/distance measuring equipment out of service'. He and I both understood the NOTAM to mean only the DME was not working for the approach. We requested direct filta to set up for a straight-in approach to runway 31. Shortly before reaching filta we were cleared by the ZMP controller for the approach. When the GPS showed we had reached filta; the CDI had not moved off the 'wall'. We immediately advised the ZMP controller the NAVAID was not working and requested vectors for the RNAV 31 approach. He gave us vectors and read us the NOTAM. My captain and I realized at that time; the NOTAM was for the entire NAVAID being out of service. After landing we checked the dins NOTAM website; and the verbiage was not much clearer: 'navigation ILS runway 31 localizer/DME U/south.'the lesson learned for my captain and I was not to assume anything when reading NOTAMS. A possible solution to future confusion would be to delineate that each component is out of service. Example: 'navigation ILS runway 31 G/south U/south & localizer/DME U/south.'
Original NASA ASRS Text
Title: BE200 First Officer reported misinterpreting a NOTAM and found more equipment out of service than expected.
Narrative: During mission planning for a flight; my Captain and I saw the NOTAM in Foreflight for 'NAVIGATION ILS RUNWAY 31 LOC/DISTANCE MEASURING EQUIPMENT OUT OF SERVICE'. He and I both understood the NOTAM to mean only the DME was not working for the approach. We requested direct FILTA to set up for a straight-in approach to runway 31. Shortly before reaching FILTA we were cleared by the ZMP controller for the approach. When the GPS showed we had reached FILTA; the CDI had not moved off the 'wall'. We immediately advised the ZMP controller the NAVAID was not working and requested vectors for the RNAV 31 approach. He gave us vectors and read us the NOTAM. My Captain and I realized at that time; the NOTAM was for the entire NAVAID being out of service. After landing we checked the DINS NOTAM website; and the verbiage was not much clearer: 'NAV ILS RWY 31 LOC/DME U/S.'The lesson learned for my Captain and I was not to assume anything when reading NOTAMS. A possible solution to future confusion would be to delineate that each component is out of service. Example: 'NAV ILS RWY 31 G/S U/S & LOC/DME U/S.'
Data retrieved from NASA's ASRS site 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.