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B787 captain reported a lack of guidance in the flight manual for a blocked or frozen static system.
| Attributes | |
| ACN | 1521848 |
| Time | |
| Date | 201802 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | B787 Dreamliner Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine |
| Experience | Flight Crew Last 90 Days 220 Flight Crew Total 24000 |
| Events | |
| Anomaly | Deviation - Procedural Published Material / Policy |
Narrative:
In preparing for my first [line operation experience] on the B787 I realized that the current 787 flight manual does not contain any procedure for a blocked static system. All the other boeing and airbus flight manuals I have flown contain specific non-normal procedures for unreliable airspeed/altitude indications resulting from a blocked/frozen static system. I personally [have] had to deal with a frozen B737 static system on a departure [in my career]. The loss of all three sets of pitot/static instruments and autoflight; autopilot and autothrottle functions as a result of the frozen static system was very challenging and without a specific procedure to help the crew deal with the multiple failures could very easily result in a hull-loss.
Original NASA ASRS Text
Title: B787 Captain reported a lack of guidance in the flight manual for a blocked or frozen static system.
Narrative: In preparing for my first [line operation experience] on the B787 I realized that the current 787 Flight Manual does NOT contain any procedure for a blocked static system. All the other Boeing and Airbus flight manuals I have flown contain specific non-normal procedures for UNRELIABLE AIRSPEED/ALTITUDE INDICATIONS resulting from a blocked/frozen static system. I personally [have] had to deal with a frozen B737 static system on a departure [in my career]. The loss of all three sets of pitot/static instruments and Autoflight; Autopilot and Autothrottle functions as a result of the frozen static system was very challenging and without a specific procedure to help the crew deal with the multiple failures could very easily result in a hull-loss.
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.