B737-800
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Confusion
Deviation / Discrepancy - Procedural Published Material / Policy
General None Reported / Taken
Company Policy; Manuals
I have reviewed the current 737 QRH procedure for 'AOA Disagree' for the B737-MAX 8; and find it lacking in detail and guidance. Bulletin page X contains troubleshooting guidelines for Erroneous AOA scenario; as well as procedures regarding what to do. Shouldn't this all be part of the abnormal in the QRH? The QRH is the one place where pilots can go to quickly find a procedure that aids in troubleshooting and correcting any emergency or abnormal; so it should be the only repository of this relevant information. In the event of an AOA Disagree occurrence; pilots currently have to not only consult the QRH; but Bulletin as well. This uses up precious extra time; which may not be available. In terms of the TEM (Threat and Error Management) model; it actually removes barriers and weakens the procedural backstop that we rely on for time critical responses. In fact; the AOA Disagree abnormal gives no guidance at all.I suggest that Bulletin be incorporated into the QRH AOA Disagree abnormal. Put all the guidance currently in the bulletin; into the QRH abnormal. Also; As part of the Additional Information; contrast the AOA Disagree with the IAS Disagree (Airspeed Unreliable) abnormal. There is overlap between these two abnormals that could potentially cause confusion. A hyperlink could also be added to take one to the Runaway Stabilizer checklist. I believe all these changes would streamline our response to the AOA Disagree abnormal; as well as add a stronger barrier in the procedural process.
B737 Captain reported concern that supplemental B737 Max Angle of Attack Disagree guidelines are contained within a Bulletin rather than the aircraft Quick Reference Handbook.