B737-222 / B737-291 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. 

Aircraft type is marked in black sharpie on the front and spine showing the correct aircraft designation for the manual.

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

Thanks,