紅孩症

红 = 工 + 纟 : Mnemonic symbol: a little red book.

Helga Horse (hu) is reading the little red book (红) in the engine's kitchen ((e)ng2), when she discovers that it is being eaten by a silk worm (纟). She overreacts a little and wants to beat the silk worm with a steel beam (工).

孩 = 孑 + 亥 : Just inside the airplane's kitchen Hamlet is quite annoyed by the love child of the boar and the mosquito.

症 = 正 + 疒 : The stick figure (正) is visiting James II of England (zh) in the engine's bathroom ((e)ng4) to have him investigate his colorful rash (疒). Unfortunately James II of England has to tell him that he has cancer (症).