Federal Aviation Administration, DOT

Section 34.11

aircraft or engine if such aircraft or engine has been exempted from such
standard under this part.
[Doc. No. 25613, 55 FR 32861, Aug. 10, 1990, as
amended by Amdt. 34-5, 77 FR 76850, Dec. 31,
2012]

Section 34.9 Exceptions.
(a) Spare engines. Certain engines
that meet the following description are
excepted:
(1) This exception allows production
of an engine for installation on an inservice aircraft. A spare engine may
not be installed on a new aircraft.
(2) Each spare engine must be identical to a sub-model previously certificated to meet all applicable requirements.
(3) A spare engine may be used only
when the emissions of the spare do not
exceed the certification requirements
of the original engine, for all regulated
pollutants.
(4) No separate approval is required
to produce spare engines.
(5) The record for each engine excepted under this paragraph (c) must
indicate that the engine was produced
as an excepted spare engine.
(6) Engines produced under this exception must be labeled  - EXCEPTED
SPARE -  in accordance with Section 45.13 of
this chapter.
(b) On and after July 18, 2012, and before August 31, 2013, a manufacturer
may produce up to six Tier 4 compliant
engines that meet the NOX standards of
paragraph (d)(1)(vi) of this section
rather than Section 34.23(a)(2). No separate approval is required to produce these engines. Engines produced under this exception are to be labeled  - COMPLY -  in
accordance with Section 45.13 of this chapter.
[Doc. No. FAA-2012-1333, 77 FR 76850, Dec. 31,
2012]

spaschal on DSK3GDR082PROD with CFR

Subpart B - Engine Fuel Venting
Emissions (New and In-Use
Aircraft Gas Turbine Engines)
Section 34.10 Applicability.
(a) The provisions of this subpart are
applicable to all new aircraft gas turbine engines of classes T3, T8, TSS, and
TF equal to or greater than 36 kN (8,090
lb) rated output, manufactured on or
after January 1, 1974, and to all in-use

aircraft gas turbine engines of classes
T3, T8, TSS, and TF equal to or greater
than 36 kN (8,090 lb) rated output manufactured after February 1, 1974.
(b) The provisions of this subpart are
also applicable to all new aircraft gas
turbine engines of class TF less than 36
kN (8,090 lb) rated output and class TP
manufactured on or after January 1,
1975, and to all in-use aircraft gas turbine engines of class TF less than 36 kN
(8,090 lb) rated output and class TP
manufactured after January 1, 1975.
[Doc. No. FAA-2012-1333, 77 FR 76850, Dec. 31,
2012]

Section 34.11 Standard for fuel venting emissions.
(a) No fuel venting emissions shall be
discharged into the atmosphere from
any new or in-use aircraft gas turbine
engine subject to the subpart. This
paragraph is directed at the elimination of intentional discharge to the
atmosphere of fuel drained from fuel
nozzle manifolds after engines are shut
down and does not apply to normal fuel
seepage from shaft seals, joints, and
fittings.
(b) Conformity with the standard set
forth in paragraph (a) of this section
shall be determined by inspection of
the method designed to eliminate these
emissions.
(c) As applied to an airframe or an
engine, any manufacturer or operator
may show compliance with the fuel
venting and emissions requirements of
this section that were effective beginning February 1, 1974 or January 1,
1975, by any means that prevents the
intentional discharge of fuel from fuel
nozzle manifolds after the engines are
shut down. Acceptable means of compliance include one of the following:
(1) Incorporation of an FAA-approved
system that recirculates the fuel back
into the fuel system.
(2) Capping or securing the pressurization and drain valve.
(3) Manually draining the fuel from a
holding tank into a container.

749

VerDate Sep<11>2014

12:50 Apr 30, 2019

Jkt 247046

PO 00000

Frm 00759

Fmt 8010

Sfmt 8010

Y:\SGML\247046.XXX

247046