<prompt> Translate the following text to EnglishKwa mfano, utoaji wa fuselage nyuma - sehemu ya nyuma ya mwili wa ndege - ilikuwa marehemu kwa ndege kadhaa za majaribio na vitu viwili vya majaribio ya ardhi kwa sababu ya sehemu za marehemu na ugumu na mchakato wa kulehemu.  <response>: For example, delivery of the aft fuselage-the rear aircraft body section-was late for several of the test aircraft and two ground test articles because of late parts and difficulties with the welding process. 