FlyerTalk Forums - View Single Post - Those little holes on an airplane's rear end...

Jul 3, 2005 | 11:31 am

#6

AllanJ

Join Date: Jan 2000

Location: Nashua, NH USA

Programs: Seashore Trolley Museum "flight attendant"

Posts: 2,015

The APU on many jet planes contains a little jet engine. So a 747 has five engines and a 737, three. The exhaust comes through the hole in the rear which in turn accumulates discolored stains.

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