B737-322 / B737-522 Original Aircraft Reference Guide United Airlines Maintenance Operations Training Manual consists of 1 illustrated Volume.

Volume I is tabbed: Dimensions & Areas, Air Conditioning, Electrical Power, Equipment Furnishings, Fire Protection, Flight Controls, Fuel, Hydraulic Power, and Ice & Rain Protection Landing Gear, Lights, Oxygen, Pneumatics, Water/ Waste, AIrbourne Aux Power, Doors, Windows, and Power Plant.

Manual is in great condition.  For the most part, only used during training classes.  A little bit of highlighting and/or notes could exist, but did not see any while shuffling through the pages. 

I will be selling all my manuals, so please look at my other ebay items for sale.  We do combine shipping.

Thanks,