Text in force at CS29-12: from CS29-0, effective 14 Nov 2003.
(a) Compliance with CS 29.955 m ust not be jeopardised by failure of:
(1) Any one pum p except pum ps that are approved and i nstalled as part s of a t ype certificated engine; or
(2) Any com ponent requi red for pump operation except the engi ne served by t hat pump.
(b) The fol lowing fuel pum p i nstallation requirements apply:
(1) When n ecessary to m aintain th e proper fuel pressure:
(i) A connect ion m ust be provided t o t ransmit t he carburet tor ai r intake static pressure to th e p roper fu el pump relief valve connection; and
(ii) The gauge bal ance l ines m ust be i ndependently connect ed t o t he carburettor inlet p ressure to av oid incorrect fuel pressure readings.
(2) The i nstallation of fuel pum ps having seals or di aphragms that may leak must have means for draining leaking fuel.
(3) Each drain line must discharge where it will not create a fire hazard.
ED Decision 2003/016/RM · Source