 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
CRJ900 flight crew report getting very slow at FL360 during an FMC discussion. The captain increases thrust but not enough and the stick shaker activates and the autopilot disengages. The captain starts descending to gain airspeed and ATC is advised. The captain appears unresponsive during the descent and the first officer is assigned flying duties for the landing. A fatigue call is made by the captain after block in.
| Attributes | |
| ACN | 1167986 |
| Time | |
| Date | 201404 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Regional Jet 900 (CRJ900) |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Pilot Not Flying First Officer |
| Events | |
| Anomaly | Deviation - Altitude Excursion From Assigned Altitude Deviation - Procedural Published Material / Policy Deviation - Speed All Types |
Narrative:
While demonstrating a function of the FMS to my first officer I looked up to check on the airplane and noticed the airspeed was getting slow. I increased thrust to increase the airspeed before it reached the rattlesnake. Over the next couple of minutes the airspeed still continued to slowly decrease. I don't remember if I disengaged the autopilot or if the stick shaker disengaged the autopilot. Either way I got the stick shaker and with the autopilot off I started a descent to increase airspeed. I told my first officer to inform center that we were in a descent to increase our airspeed. ATC did not seem too concerned and incrementally descended us for our arrival. After being nonrespondent to some ATC instructions it became apparent that I was fatigued. I transferred the controls to my first officer who continued the flight without incident. After the shutdown checklist was completed I called in fatigued. Recognizing fatigue and the factors leading up to my being fatigued and calling in fatigued when I really needed to would have prevented this event from happening.
Original NASA ASRS Text
Title: CRJ900 flight crew report getting very slow at FL360 during an FMC discussion. The Captain increases thrust but not enough and the stick shaker activates and the autopilot disengages. The Captain starts descending to gain airspeed and ATC is advised. The Captain appears unresponsive during the descent and the First Officer is assigned flying duties for the landing. A fatigue call is made by the Captain after block in.
Narrative: While demonstrating a function of the FMS to my First Officer I looked up to check on the airplane and noticed the airspeed was getting slow. I increased thrust to increase the airspeed before it reached the rattlesnake. Over the next couple of minutes the airspeed still continued to slowly decrease. I don't remember if I disengaged the autopilot or if the stick shaker disengaged the autopilot. Either way I got the stick shaker and with the autopilot off I started a descent to increase airspeed. I told my First Officer to inform Center that we were in a descent to increase our airspeed. ATC did not seem too concerned and incrementally descended us for our arrival. After being nonrespondent to some ATC instructions it became apparent that I was fatigued. I transferred the controls to my First Officer who continued the flight without incident. After the Shutdown Checklist was completed I called in fatigued. Recognizing fatigue and the factors leading up to my being fatigued and calling in fatigued when I really needed to would have prevented this event from happening.
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.