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Air carrier first officer of a large turbojet reported descending below an MSA during a visual approach to okc.
| Attributes | |
| ACN | 1529746 |
| Time | |
| Date | 201803 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | OKC.TRACON |
| State Reference | OK |
| Aircraft 1 | |
| Make Model Name | Large Transport |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Flight Plan | IFR |
| Person 1 | |
| Function | Pilot Flying First Officer |
| Qualification | Flight Crew Instrument Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Deviation - Procedural Published Material / Policy Inflight Event / Encounter CFTT / CFIT |
Narrative:
During flight to okc CRM used to intervene with an altitude restriction which inadvertently was going to put us below the charted 3;800 MSA around the okc airport from our current position.on initial check-in we were given direct to the artec intersection at 4;000 feet and subsequently the hangs intersection which the captain (ca) had requested and input into the mcdu. Shortly there after we requested and were granted a visual approach to the field and a descent to 3;000 feet was established.as the pilot flying (PF) I immediately realized that the 3;000 feet clearance was below our MSA altitude for our current position. Okc airport has an antenna farm whose many towers were in very close proximity to our position that of which some are as high as 2;749 feet. As a result; I immediately disconnected the autopilot and climbed to 3;800 feet.shortly there afterwards; we then intercepted the ILS for [the] runway and landed uneventfully.
Original NASA ASRS Text
Title: Air carrier First Officer of a large turbojet reported descending below an MSA during a visual approach to OKC.
Narrative: During flight to OKC CRM used to intervene with an altitude restriction which inadvertently was going to put us below the charted 3;800 MSA around the OKC Airport from our current position.On initial check-in we were given Direct to the ARTEC intersection at 4;000 feet and subsequently the HANGS intersection which the Captain (CA) had requested and input into the MCDU. Shortly there after we requested and were granted a visual approach to the field and a descent to 3;000 feet was established.As the Pilot Flying (PF) I immediately realized that the 3;000 feet clearance was below our MSA altitude for our current position. OKC Airport has an Antenna farm whose many towers were in very close proximity to our position that of which some are as high as 2;749 feet. As a result; I immediately disconnected the autopilot and climbed to 3;800 feet.Shortly there afterwards; we then intercepted the ILS for [the] Runway and landed uneventfully.
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.