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Crj-200 flight crew reported experiencing a stick shaker during approach due to an inaccurate landing weight caused by the omission of the ZFW entry into the FMC during preflight. A go-around is initiated and the landing weight is corrected.
| Attributes | |
| ACN | 1433034 |
| Time | |
| Date | 201703 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ORD.Airport |
| State Reference | IL |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Regional Jet 200 ER/LR (CRJ200) |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | FMS/FMC |
| Person 1 | |
| Function | First Officer Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Pilot Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Deviation - Procedural Weight And Balance Deviation - Procedural Published Material / Policy Deviation - Speed All Types Inflight Event / Encounter Unstabilized Approach |
Narrative:
Our flight into ord was short and busy; but seemed to be going good. As we descended via the ILS 27L approach we were assigned 180 to the FAF; as we continued to slow to our vref speeds; we encountered a stick shaker event. As the auto-pilot disengaged; the captain quickly lowered the aoa (slightly); and as a precaution executed a go around. It was then the captain noticed I had put the wrong landing weight (36;000lbs instead of 46;000lbs) for the landing. We reset as a crew and setup of for the ILS 27R; after getting sequenced in for that approach we landed without event.while setting up the FMS for descent into ord; I entered the fuel on board (fob); and then entered the fuel remaining at landing into the FMS to attain the landing weight; I then re-entered the fob in the FMS. I forgot to enter the ZFW into the FMS; and continued setting up the 'box'; thus entering the incorrect landing weight into the ACARS.I need to remember to make sure I enter the ZFW when doing my descent planning; and then double check that my fuel remaining at landing added to my ZFW number (on my yoke) equals the speed card and landing data I have entered and calculated into ACARS. Possibly consider a verbal/visual check with the pilot flying; as a double check to ensure proper landing data is set.
Original NASA ASRS Text
Title: CRJ-200 flight crew reported experiencing a stick shaker during approach due to an inaccurate landing weight caused by the omission of the ZFW entry into the FMC during preflight. A go-around is initiated and the landing weight is corrected.
Narrative: Our flight into ORD was short and busy; but seemed to be going good. As we descended via the ILS 27L approach we were assigned 180 to the FAF; as we continued to slow to our Vref speeds; we encountered a stick shaker event. As the auto-pilot disengaged; the Captain quickly lowered the AOA (slightly); and as a precaution executed a go around. It was then the Captain noticed I had put the wrong landing weight (36;000lbs instead of 46;000lbs) for the landing. We reset as a crew and setup of for the ILS 27R; after getting sequenced in for that approach we landed without event.While setting up the FMS for descent into ORD; I entered the Fuel On Board (FOB); and then entered the fuel remaining at landing into the FMS to attain the landing weight; I then re-entered the FOB in the FMS. I forgot to enter the ZFW into the FMS; and continued setting up the 'box'; thus entering the incorrect landing weight into the ACARS.I need to remember to make sure I enter the ZFW when doing my descent planning; and then double check that my fuel remaining at landing added to my ZFW number (on my yoke) equals the speed card and landing data I have entered and calculated into ACARS. Possibly consider a verbal/visual check with the pilot flying; as a double check to ensure proper landing data is set.
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.