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A controller described an event when an IFR aircraft being vectored for an approach repeatedly failed to follow altitude and vector instructions resulting in multiple MVA infractions.
| Attributes | |
| ACN | 883742 |
| Time | |
| Date | 201004 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZOB.ARTCC |
| State Reference | OH |
| Aircraft 1 | |
| Make Model Name | Small Aircraft High Wing 1 Eng Fixed Gear |
| Flight Phase | Descent |
| Route In Use | Other Instrument Approach |
| Flight Plan | IFR |
| Person 1 | |
| Qualification | Air Traffic Control Fully Certified |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Altitude Excursion From Assigned Altitude Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types Inflight Event / Encounter CFTT / CFIT |
Narrative:
I was controlling aircraft X coming from washington center landing at jst. Washington center called on the line and told me that his mode-C was inoperable. The pilot checked on level at 7;000 ft. I then descended the pilot to 6;000 ft and told him to report reaching. He descended and reported reaching 6;000 ft. His altitude showed him level at 6;000 ft. I then gave him a heading towards the localizer for jst. Then I descended him to 4;600 ft and told him to report reaching. Then he was about 5 miles south of the localizer and he appeared to be heading southwest bound and his altitude was showing 3;800 ft. I asked him what his heading was and he said it was hard to tell. I asked him what his altitude was and he said he was at 3;200 ft so I immediately climbed him to 4;600 ft; which is our MVA in that area. When his mode-C showed him close to 4;600 ft I asked him his altitude he said he was at 4;600 ft so I turned him back towards the localizer. Then his altitude showed him at 3;800 ft so I asked him what his altitude was and he said he was at 4;000 ft and turning to a 330 heading. I then told him to climb to 4;600 ft again and he did and reported level at 4;600 so I turned him again back towards the localizer. When I saw that he was established on the heading and appeared to be holding altitude I cleared him for the approach at jst. He then appeared to be flying through the localizer but then turned on and then his altitude was showing 4;000 ft so I asked him what his altitude was and he said he was at 4;000 ft so I told him that he needs to maintain 4;600 ft until rumml which is the IAF for the approach and I told him to report established on the approach. He reported established on the approach so I terminated radar and switched him to jst tower. The tower then called and asked if we were still talking to the pilot so I tried to reach him and he didn't reply. He then contacted the tower on about a one mile final. The pilot did land safely.
Original NASA ASRS Text
Title: A Controller described an event when an IFR aircraft being vectored for an approach repeatedly failed to follow altitude and vector instructions resulting in multiple MVA infractions.
Narrative: I was controlling Aircraft X coming from Washington Center landing at JST. Washington Center called on the line and told me that his Mode-C was inoperable. The pilot checked on level at 7;000 FT. I then descended the pilot to 6;000 FT and told him to report reaching. He descended and reported reaching 6;000 FT. His altitude showed him level at 6;000 FT. I then gave him a heading towards the localizer for JST. Then I descended him to 4;600 FT and told him to report reaching. Then he was about 5 miles south of the localizer and he appeared to be heading southwest bound and his altitude was showing 3;800 FT. I asked him what his heading was and he said it was hard to tell. I asked him what his altitude was and he said he was at 3;200 FT so I immediately climbed him to 4;600 FT; which is our MVA in that area. When his Mode-C showed him close to 4;600 FT I asked him his altitude he said he was at 4;600 FT so I turned him back towards the localizer. Then his altitude showed him at 3;800 FT so I asked him what his altitude was and he said he was at 4;000 FT and turning to a 330 heading. I then told him to climb to 4;600 FT again and he did and reported level at 4;600 so I turned him again back towards the localizer. When I saw that he was established on the heading and appeared to be holding altitude I cleared him for the approach at JST. He then appeared to be flying through the localizer but then turned on and then his altitude was showing 4;000 FT so I asked him what his altitude was and he said he was at 4;000 FT so I told him that he needs to maintain 4;600 FT until RUMML which is the IAF for the approach and I told him to report established on the approach. He reported established on the approach so I terminated RADAR and switched him to JST Tower. The Tower then called and asked if we were still talking to the pilot so I tried to reach him and he didn't reply. He then contacted the Tower on about a one mile final. The pilot did land safely.
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.