Federal Aviation Administration, DOT

Section 26.35

model listed in Table 1 of this section,
and each person subject to paragraph
(a)(3)(iii) of this section, must submit
for approval to the responsible Aircraft
Certification Service office an assessment of the fuel tank system, as modified by their design change. The assessment must identify any features of the
design change that compromise any
critical design configuration control
limitation (CDCCL) applicable to any
airplane on which the design change is
eligible for installation.
(1) Holders of supplemental type certificates and field approvals: Before
June 26, 2011.
(2) Applicants for supplemental type
certificates and for amendments to
type certificates: Before June 26, 2011
or before the certificate is issued,
whichever occurs later.
TABLE 1
Model - Boeing
747
737
777
767
757

Series
Series
Series
Series
Series
Model - Airbus

spaschal on DSK3GDR082PROD with CFR

A318, A319, A320, A321 Series
A300, A310 Series
A330, A340 Series
(d) Design Changes and Service Instructions. By the times specified in paragraph (e) of this section, each person
subject to this section must meet the
requirements of paragraphs (d)(1) or
(d)(2) of this section, as applicable.
(1) For holders and applicants subject
to paragraph (a)(1) or (a)(3)(iii) of this
section, if the assessment required by
paragraph (c) of this section identifies
any features of the design change that
compromise any CDCCL applicable to
any airplane on which the design
change is eligible for installation, the
holder or applicant must submit for approval by the responsible Aircraft Certification Service office design changes
and service instructions for Flammability
Impact
Mitigation
Means
(FIMM) that would bring the design
change into compliance with the

CDCCL. Any fuel tank modified as required by this paragraph must also be
evaluated as required by paragraph (b)
of this section.
(2) Applicants subject to paragraph
(a)(2), or (a)(3)(i) of this section must
comply with the requirements of 14
CFR 25.981, in effect on December 26,
2008.
(3) Applicants subject to paragraph
(a)(3)(ii) of this section must comply
with the requirements of 14 CFR 26.33.
(e) Compliance Times for Design
Changes and Service Instructions. The
following persons subject to this section must comply with the requirements of paragraph (d) of this section
at the specified times.
(1) Holders of supplemental type certificates and field approvals: Before December 26, 2012.
(2) Applicants for supplemental type
certificates and for amendments to
type certificates: Before December 26,
2012, or before the certificate is issued,
whichever occurs later.
(f) Compliance Planning. By the applicable date specified in Table 2 of this
section, each person subject to paragraph (a)(1) of this section must submit
for approval by the responsible Aircraft
Certification Service office compliance
plans for the flammability exposure
analysis required by paragraph (b) of
this section, the impact assessment required by paragraph (c) of this section,
and the design changes and service instructions required by paragraph (d) of
this section. Each person-s compliance
plans must include the following:
(1) A proposed project schedule for
submitting the required analysis or impact assessment.
(2) A proposed means of compliance
with paragraph (d) of this section.
(3) For the requirements of paragraph
(d) of this section, a proposal for submitting a draft of all design changes, if
any are required, and Airworthiness
Limitations (including CDCCLs) for review by the responsible Aircraft Certification Service office not less than
60 days before the compliance time
specified in paragraph (e) of this section.
(4) For the requirements of paragraph
(d) of this section, a proposal for how
the approved service information and

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