37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 1642922 |
Time | |
Date | 201905 |
Aircraft 1 | |
Make Model Name | B737-700 |
Operating Under FAR Part | Part 121 |
Person 1 | |
Function | Other / Unknown |
Events | |
Anomaly | Deviation - Procedural Published Material / Policy |
Narrative:
B737NG QRH errors. Threat: aircrew will use incorrect QRH procedures resulting in possible loss of airframe. Background: while looking up QRH unreliable airspeed power and pitch settings; I noted the performance table for the 737-700 CFM56 holding flaps up unreliable airspeed (table x.x) was incorrect as the lighter gross weights had higher airspeeds and N1s than the heavier gross weights. I submitted a [report] flight ops publication feedback form on it. The response was quick; but noted the correction had been put out via bulletin on (date from seven months ago) that the table was incorrect and it had also noted the speedbrake 'do not arm' procedure was in error. I remembered reading the bulletin; but honestly thought it was letting me know the QRH was going to be updated. It has now been six plus months; and the QRH still contains inaccurate information. I have spoken to a half dozen pilots; including a chief pilot and a separate check airman; none knew the QRH was still incorrect nor recalled the bulletin. Recommend that if the QRH cannot be updated due to processes; finding a different way to remind aircrew the QRH is in error. A note to review the bulletin (or even the correct table and procedures) could be added to the front page of the weather packets or dispatcher note regarding the bulletin could be added to all releases.
Original NASA ASRS Text
Title: Air carrier reporter stated there are QRH errors in the performance table accompanying the B737NG Unreliable Airspeed Non-Normal procedure.
Narrative: B737NG QRH Errors. Threat: aircrew will use incorrect QRH procedures resulting in possible loss of airframe. Background: while looking up QRH unreliable airspeed power and pitch settings; I noted the performance table for the 737-700 CFM56 holding flaps up unreliable airspeed (table x.x) was incorrect as the lighter gross weights had higher airspeeds and N1s than the heavier gross weights. I submitted a [report] Flight Ops publication feedback form on it. The response was quick; but noted the correction had been put out via bulletin on (date from seven months ago) that the table was incorrect and it had also noted the speedbrake 'Do Not Arm' procedure was in error. I remembered reading the bulletin; but honestly thought it was letting me know the QRH was going to be updated. It has now been six plus months; and the QRH still contains inaccurate information. I have spoken to a half dozen pilots; including a Chief Pilot and a separate Check Airman; none knew the QRH was still incorrect nor recalled the bulletin. Recommend that if the QRH cannot be updated due to processes; finding a different way to remind aircrew the QRH is in error. A note to review the bulletin (or even the correct table and procedures) could be added to the front page of the weather packets or dispatcher note regarding the bulletin could be added to all releases.
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.