B737 MAX 9
Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine
Confusion; Situational Awareness
Deviation / Discrepancy - Procedural Published Material / Policy; Ground Event / Encounter Ground Equipment Issue
Flight Crew Overcame Equipment Problem
Company Policy; Human Factors; Manuals
On pushback; the tow bar shear pin failed. Given the angle the tug was to the airplane it wasn't a surprise and no damage was suspected or reported. I recalled that we could do an information only write up in the logbook if no damage was suspected. Since this was the 737 MAX; I called maintenance control through dispatch to make sure we could still do that. Maintenance control said yes; we could do an information only write up. The fleet Captain contacted [me] today to let me know we can't do this on the MAX yet and that an inspection was required per our manual. I was used to the guidance for the NG and missed the note for the MAX requiring an inspection for shear pin failure. Since it was the MAX; I did take the extra step to obtain guidance from maintenance control but unfortunately that didn't trap this error.  Perhaps a quick note or bulletin highlighting this change to the pilot group would help.
B737 MAX 9 Captain reported the shear pin broke during pushback and they failed to have maintenance inspect the aircraft as required.