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Air carrier captain reported the mot airport NOTAM for the runway 30 ILS does not agree with the decision height (DH) for this runway.
| Attributes | |
| ACN | 1633689 |
| Time | |
| Date | 201904 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | MOT.Airport |
| State Reference | ND |
| Aircraft 1 | |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Final Approach |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Deviation - Procedural Published Material / Policy |
Narrative:
ILS 31 mot is fdc notamed to not couple the autopilot below 2;060. That's about 400 AGL. At approximately 500 AGL the glideslope becomes unusable. It fluctuates enough that the command bars start to pitch up and down wildly. How can a flight be operated safely when the ILS at 400 AGL is rendered useless? This approach gets you down to 200 AGL. What is [company] asking us to do for these last 200 feet when the instrumentation becomes unusable? [Company] cannot use this procedure until it is fixed.
Original NASA ASRS Text
Title: Air carrier Captain reported the MOT airport NOTAM for the Runway 30 ILS does not agree with the Decision Height (DH) for this runway.
Narrative: ILS 31 MOT is FDC NOTAMed to not couple the autopilot below 2;060. That's about 400 AGL. At approximately 500 AGL the glideslope becomes unusable. It fluctuates enough that the command bars start to pitch up and down wildly. How can a flight be operated safely when the ILS at 400 AGL is rendered useless? This approach gets you down to 200 AGL. What is [Company] asking us to do for these last 200 feet when the instrumentation becomes unusable? [Company] cannot use this procedure until it is fixed.
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.