Is that the case nitpicker... Please bear in mind that the company myself i_like_tea and pizza express work for expressly forbid flyby's.
Which items are you going to perform from the Landing with abnormal L/G QRH?
- Nose or Main Gear?
- if Main gear, one or both?
Will you reset the handcrank system which the abnormal l/g QRH tells you to do baring in mind that the gravity gear extend checklist says:
Do not reset the free-fall system: This will avoid such undesirable effects as further loss of fluid, in the event of a leak, or possible landing gear unlocking, in the event of a gear selector valve jamming in the UP position.
How will you determine if the gravity extend was a success Or failure? Using the belts and braces method of doing the abnormal l/g procedure might just get you into the position of an unlocked l/g.
Are you going to turn the antiskid nosewheelsteering OFF (our aircraft have NWS on yellow system so it remains functional after gravity extend) and go to alternate braking 1000psi max while loosing directional control capability?
Please consider that with LGCIU 1+2 Fault you will have NO reversers! In addition you will have no wing anti-ice which could lead to ice accretion which will increase your approach speed.
Which actions will you perform in the flare? Nose, 1 main gear, both main gear?
Bear in mind that they all tell you to shut engines at a different time, from in the flare to just before nose touchdown.
Do you want to create a stopping problem???
I don't know the answer... But nitpicking (no pun intended) items from checklists could leave you out in the cold... The system and checklists are not very well designed at all, A330 system seems much better.
I would prepare the cabin for an emergency landing though.