Text in force at CS29-12: from CS29-0, effective 14 Nov 2003.
(a) For the purpose of t his C ode, t he powerplant installation includes each part of the rotorcraft (o ther th an th e main an d auxiliary rotor structures) that:
(1) Is necessary for propulsion;
(2) Affects the control of the m ajor propulsive units; or
(3) Affects the safety of the m ajor propulsive units between normal inspections or overhauls.
(b) For each powerplant installation:
(1) The installation must comply with:
(i) The in stallation in structions provided under CS–E; and
(ii) The applicable provi sions of this Subpart.
(2) Each component of t he i nstallation must be const ructed, arranged, and i nstalled t o ensure i ts cont inued safe operat ion between normal i nspections or overhaul s for t he range of tem perature an d altitu de fo r wh ich approval is requested.
(3) Accessibility m ust b e p rovided to allow any in spection an d m aintenance necessary for continued airworthiness.
(4) Electrical interconnections m ust be provided t o prevent di fferences of potential between m ajor com ponents of t he i nstallation and the rest of the rotorcraft.
(5) Axial and radi al expansi on of turbine engines m ay not affect the safety of the installation; and
(6) Design precautions must be taken to minimise th e p ossibility o f incorrect assembly of com ponents and equi pment essent ial t o safe operation of the rotorcraft, except where operation with th e in correct assem bly can b e shown to be extremely improbable.
(c) For each powerplant and auxiliary power unit in stallation, it m ust b e estab lished th at n o single fai lure or m alfunction or probabl e combination o f failu res will j eopardise th e safe operation o f th e ro torcraft ex cept that the failure of structural elem ents n eed not be consi dered i f the p robability o f an y su ch failu re is extremely remote.
(d) Each au xiliary p ower u nit installation must meet t he appl icable provi sions of t his Subpart.
ED Decision 2003/016/RM · Source