B737 maximum 8 captain reported this aircraft could tip on its tail at the gate since a tail stand i...

Narrative:

We were scheduled for a maximum 8. We arrived at [the] gate and noticed from looking at aircraft from the terminal that nose gear was very extended. I walked down jetway and as I was standing in the jetway (greeting passengers as they exited the aircraft) I noticed the aircraft literally bouncing up to the point where the fuselage was hitting the cushions on the cover from the jetway that goes over the forward entry door. The first officer got back from doing his walk around and told me the tail stand was not installed. I called ops and asked them to install the tail stand; the response I got back was that it was not required. [Apparently] tail stands are only required on -800s. I believe this is an oversight that needs to be remedied immediately. I witnessed a very near tipping incident. Had it not been for the cover over the forward entry door holding the aircraft down; I believe the aircraft would have tipped. We have the tail stands why wouldn't we use them on the maximum 8s? Are we going to wait for a maximum 8 to tip on its tail before we change our ground ops procedures?

Original NASA ASRS Text

Title: B737 MAX 8 Captain reported this aircraft could tip on its tail at the gate since a tail stand is not currently required to be used on the aircraft.

Narrative: We were scheduled for a MAX 8. We arrived at [the] gate and noticed from looking at aircraft from the terminal that nose gear was very extended. I walked down jetway and as I was standing in the jetway (greeting passengers as they exited the aircraft) I noticed the aircraft literally bouncing up to the point where the fuselage was hitting the cushions on the cover from the jetway that goes over the forward entry door. The First Officer got back from doing his walk around and told me the tail stand was not installed. I called Ops and asked them to install the tail stand; the response I got back was that it was not required. [Apparently] tail stands are only required on -800s. I believe this is an oversight that needs to be remedied immediately. I witnessed a very near tipping incident. Had it not been for the cover over the forward entry door holding the aircraft down; I believe the aircraft would have tipped. We have the tail stands why wouldn't we use them on the MAX 8s? Are we going to wait for a MAX 8 to tip on its tail before we change our Ground Ops procedures?

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.

Attributes
ACN	1614351
Time
Date	201901
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Flight Phase	Parked
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 432
Events
Anomaly	No Specific Anomaly Occurred All Types

B737 maximum 8 captain reported this aircraft could tip on its tail at the gate since a tail stand is not currently required to be used on the aircraft.