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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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| Attributes | |
| ACN | 1176088 |
| Time | |
| Date | 201405 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ORD.Airport |
| State Reference | IL |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Large Transport Low Wing 2 Turbojet Eng |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Route In Use | SID ORD8 |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | MCP |
| Person 1 | |
| Function | Pilot Flying Captain |
| Events | |
| Anomaly | Deviation - Altitude Excursion From Assigned Altitude Deviation - Altitude Overshoot Deviation - Procedural Published Material / Policy Deviation - Procedural Clearance |
Narrative:
Departing on the ORD8 SID; we leveled off at 4;000 ft after meeting the crossing restriction at 8 DME. ATC called us and the preceding flight and told us to continue the climb to 5;000 ft. We had briefed the SID and both agreed on all facets of the procedure; including the wrong altitude of 4;000 ft in the MCP window. We'd both read the SID; had briefed the DME/altitude restrictions; 'at or above' 4;000 ft at 8 NM; etc.; had the procedure out for reference and never noticed we'd misinterpreted the final altitude. Upon reflection on how this happened; a few things come to mind. The crossing restriction of 4;000 ft at 8 DME; the verbiage has maintain 4;000 ft; then the final altitude of 5;000 ft after the fold in the paper chart. Also; as the missed approach altitude is 4;000 ft; it's already in the MCP window from the previous arrival; alluding that is the 'proper' setting (we brought the plane in). I have been told by others in the last two days that this same occurrence was briefed but corrected by a crew member who had experienced the mistake first hand. As professionals; we strive for SOP adherence. This seems a perfect storm of circumstances that align to challenge proper understanding of what on the surface appears to be a straight forward procedure.
Original NASA ASRS Text
Title: An Air Carrier Captain departed on the ORD8 with a 4;000 FT MCP constraint. After the 8 DME at 4;000 FT; ATC cleared him to 5;000 FT and asked another flight and he why they had leveled at 4;000 FT verses the 5;000 FT assigned on the SID. Many aircraft were making the same error.
Narrative: Departing on the ORD8 SID; we leveled off at 4;000 FT after meeting the crossing restriction at 8 DME. ATC called us and the preceding flight and told us to continue the climb to 5;000 FT. We had briefed the SID and both agreed on all facets of the procedure; including the wrong altitude of 4;000 FT in the MCP window. We'd both read the SID; had briefed the DME/altitude restrictions; 'at or above' 4;000 FT at 8 NM; etc.; had the procedure out for reference and never noticed we'd misinterpreted the final altitude. Upon reflection on how this happened; a few things come to mind. The crossing restriction of 4;000 FT at 8 DME; the verbiage has maintain 4;000 FT; then the final altitude of 5;000 FT after the fold in the paper chart. Also; as the missed approach altitude is 4;000 FT; it's already in the MCP window from the previous arrival; alluding that is the 'proper' setting (we brought the plane in). I have been told by others in the last two days that this same occurrence was briefed but corrected by a crew member who had experienced the mistake first hand. As professionals; we strive for SOP adherence. This seems a perfect storm of circumstances that align to challenge proper understanding of what on the surface appears to be a straight forward procedure.
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.