 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
ZLC controller reported observing that an aircraft had descended to 12;000 feet in an area where the minimum IFR altitude is 12;900 feet.
| Attributes | |
| ACN | 1371628 |
| Time | |
| Date | 201607 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZLC.ARTCC |
| State Reference | UT |
| Environment | |
| Flight Conditions | Marginal |
| Aircraft 1 | |
| Make Model Name | Small Transport |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Descent |
| Route In Use | Direct |
| Flight Plan | IFR |
| Person 1 | |
| Function | Enroute |
| Qualification | Air Traffic Control Fully Certified |
| Experience | Air Traffic Control Time Certified In Pos 1 (yrs) 4 |
| Events | |
| Anomaly | Deviation - Altitude Overshoot Deviation - Procedural Clearance Inflight Event / Encounter CFTT / CFIT |
Narrative:
I accepted the handoff on aircraft X. I descended the aircraft to 13;000 feet and then advised him that 13;000 feet was as low as I could take him IFR until he got to the airport. I became occupied with other things in the sector and then during my scan I noticed aircraft X level at 12;000 feet in a 12;900 minimum IFR altitude area. I asked the aircraft what his altitude was to which he responded 12;000 feet. I issued a low altitude alert to the aircraft to which he responded with a climb back up to 13;000 feet. The pilot then told me that he thought he was cleared for a visual approach. I asked him if he had the field in sight. He responded with a 'negative'. I told him I could not clear him for a visual approach without having the field in sight.the MSAW alert didn't go off because the aircraft was within 25 miles of the destination airport.
Original NASA ASRS Text
Title: ZLC Controller reported observing that an aircraft had descended to 12;000 feet in an area where the Minimum IFR Altitude is 12;900 feet.
Narrative: I accepted the handoff on Aircraft X. I descended the aircraft to 13;000 feet and then advised him that 13;000 feet was as low as I could take him IFR until he got to the airport. I became occupied with other things in the sector and then during my scan I noticed Aircraft X level at 12;000 feet in a 12;900 Minimum IFR Altitude area. I asked the aircraft what his altitude was to which he responded 12;000 feet. I issued a low altitude alert to the aircraft to which he responded with a climb back up to 13;000 feet. The pilot then told me that he thought he was cleared for a Visual Approach. I asked him if he had the field in sight. He responded with a 'negative'. I told him I could not clear him for a Visual Approach without having the field in sight.The MSAW alert didn't go off because the aircraft was within 25 miles of the destination airport.
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.