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Subpart A—General
26.1 Purpose and
scope.
(a)
This part establishes requirements for support of
the continued airworthiness of and safety
improvements for transport category airplanes. These
requirements may include performing assessments,
developing design changes, developing revisions to
Instructions for Continued Airworthiness (ICA), and
making necessary documentation available to affected
persons. Requirements of this part that establish
standards for design changes and revisions to the
ICA are considered airworthiness requirements.
(b)
Except as provided in paragraph (c) of this section,
this part applies to the following persons, as
specified in each subpart of this part:
(1)
Holders of type certificates and supplemental type
certificates.
(2)
Applicants for type certificates and supplemental
type certificates and changes to those certificates
(including service bulletins describing design
changes).
(3)
Persons seeking design approval for airplane
repairs, alterations, or modifications that may
affect airworthiness.
(4)
Holders of type certificates and their licensees
producing new airplanes.
(c)
An applicant for approval of a design change is not
required to comply with any applicable airworthiness
requirement of this part if the applicant elects or
is required to comply with a corresponding amendment
to part 25 of this chapter that is adopted
concurrently or after that airworthiness
requirement.
(d)
For the purposes of this part, the word “type
certificate” does not include supplemental type
certificates.
For the purposes of this part:
AFRO-CAA Oversight Office
is the aircraft certification office with oversight
responsibility for the relevant type certificate,
supplemental type certificate, or manufacturer, as
determined by the Administrator.
Table 1 of this section provides an overview of the
applicability of this part. It provides guidance in
identifying what sections apply to various types of
entities. The specific applicability of each subpart
and section is specified in the regulatory text.
TABLE 1.—Applicability of Part 26 Rules
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Applicable sections |
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Subpart B
(EAPAS/FTS) |
Subpart E damage tolerance data |
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Effective Date of Rule |
December 10, 2007 |
January 11, 2008 |
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Existing1TC Holders |
26.11 |
26.43, 26.45, 26.49 |
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Pending1TC Applicants |
26.11 |
26.43, 26.45 |
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Existing1STC Holders |
N/A |
26.47, 26.49 |
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Pending1STC/ATC Applicants |
26.11 |
26.45, 26.47, 26.49 |
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Future2STC/ATC Applicants |
26.11 |
26.45, 26.47, 26.49 |
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Manufacturers |
N/A |
N/A |
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Persons seeking design approval of repairs |
N/A |
N/A |
1As of the effective date of the identified rule.
2Application made after the effective date of the identified rule.
(a)
Except as provided in paragraph (g) of this section,
this section applies to transport category,
turbine-powered airplanes with a type certificate
issued that have,
(1)
A maximum type-certificated passenger capacity of 30
or more or
(2)
A maximum payload capacity of 7,500 pounds or more.
(b)
Holders of, and applicants for, type certificates,
as identified in paragraph (d) of this section must
develop Instructions for Continued Airworthiness (ICA)
for the representative airplane's EWIS in accordance
with part 25, Appendix H paragraphs H25.5(a)(1) and
(b) of this subchapter in effect for each affected
type design, and submit those ICA for review and
approval by the AFRO-CAA Oversight Office. For
purposes of this section, the “representative
airplane” is the configuration of each model series
airplane that incorporates all variations of EWIS
used in production on that series airplane, and all
TC-holder-designed modifications mandated by
airworthiness directive as of the effective date of
this rule. Each person specified in paragraph (d) of
this section must also review any fuel tank system
ICA developed by that person to comply with SACAR 88
to ensure compatibility with the EWIS ICA, including
minimizing redundant requirements.
(c)
Applicants for amendments to type certificates and
supplemental type certificates, as identified in
paragraph (d) of this section, must:
(1)
Evaluate whether the design change for which
approval is sought necessitates a revision to the
ICA required by paragraph (b) of this section to
comply with the requirements of Appendix H,
paragraphs H25.5(a)(1) and (b). If so, the applicant
must develop and submit the necessary revisions for
review and approval by the AFRO-CAA Oversight
Office.
(2)
Ensure that any revised EWIS ICA remain compatible
with any fuel tank system ICA previously developed
to comply with SACAR 88 and any redundant
requirements between them are minimized.
(d)
The following persons must comply with the
requirements of paragraph (b) or (c) of this
section, as applicable.
(1)
Holders of type certificates (TC): December 10,
2009.
(2)
Applicants for TCs, and amendments to TCs (including
service bulletins describing design changes).
(3)
Unless compliance with 25.1729 of this subchapter is
required or elected, applicants for amendments to
TCs.
(4)
Applicants for supplemental type certificates (STC),
including changes to existing STCs, if the date of
application was before December 10, 2007 and the
certificate was issued on or after December 10,
2007: June 7, 2010, or the date of approval of the
certificate, whichever occurs later.
(5)
Unless compliance with 25.1729 of this subchapter is
required or elected, applicants for STCs, including
changes to existing STCs.
(e)
Each person identified in paragraphs (d)(1), (d)(2),
and (d)(4) of this section must submit to the
AFRO-CAA Oversight Office for approval a compliance
plan. The compliance plan must include the following
information:
(1)
A proposed project schedule, identifying all major
milestones, for meeting the compliance dates
specified in paragraph (d) of this section.
(2)
A proposed means of compliance with this section,
identifying all required submissions, including all
compliance items as mandated in part 25, Appendix H
paragraphs H25.5(a)(1) and (b) of this subchapter,
and all data to be developed to substantiate
compliance.
(3)
A proposal for submitting a draft of all compliance
items required by paragraph (e)(2) of this section
for review by the AFRO-CAA Oversight Office.
(4)
A proposal for how the approved ICA will be made
available to affected persons.
(f)
Each person specified in paragraph (e) must
implement the compliance plan, or later approved
revisions, as approved in compliance with paragraph
(e) of this section.
(g)
This section does not apply to the following
airplane models:
(1)
Lockheed L–188
(2)
Bombardier CL–44
(3)
Mitsubishi YS–11
(4)
British Aerospace BAC 1–11
(5) Concorde
(6) deHavilland D.H. 106 Comet 4C
(7)
VFW—Vereinigte Flugtechnische Werk VFW–614
(8) Illyushin Aviation IL 96T
(9) Bristol Aircraft Britannia 305
(10) Handley Page Herald Type 300
(11) Avions Marcel Dassault—Breguet Aviation Mercure
100C
(12) Airbus Caravelle
(13) Lockheed L–300
Affects (or Affected)
means structure has been physically repaired, altered, or
modified, or the structural loads acting on the
structure have been increased or redistributed.
Baseline structure
means structure that is designed under the original type certificate or
amended type certificate for that airplane model.
Damage Tolerance Evaluation (DTE)
means a process that leads to a determination of
maintenance actions necessary to detect or preclude
fatigue cracking that could contribute to a
catastrophic failure. As applied to repairs and
alterations, a DTE includes the evaluation both of
the repair or alteration and of the fatigue critical
structure affected by the repair or alteration.
Damage Tolerance Inspection (DTI)
means the inspection developed as a result of a DTE. A
DTI includes the areas to be inspected, the
inspection method, the inspection procedures,
including acceptance and rejection criteria, the
threshold, and any repeat intervals associated with
those inspections. The DTI may specify a time limit
when a repair or alteration needs to be replaced or
modified. If the DTE concludes that DT-based
supplemental structural inspections are not
necessary, the DTI contains a statement to that
effect.
DT data mean
DTE documentation and the DTI.
DTE documentation
means data that identify the evaluated fatigue critical structure, the
basic assumptions applied in a DTE, and the results
of a DTE.
Fatigue critical structure
means airplane structure that is susceptible to fatigue
cracking that could contribute to a catastrophic
failure, as determined in accordance with 25.571 of
this chapter. Fatigue critical structure includes
structure, which, if repaired or altered, could be
susceptible to fatigue cracking and contribute to a
catastrophic failure. Such structure may be part of
the baseline structure or part of an alteration.
Implementation schedule
consists of documentation that establishes the timing for
accomplishing the necessary actions for developing
DT data for repairs and alterations, and for
incorporating those data into an operator's
continuing airworthiness maintenance program. The
documentation must identify times when actions must
be taken as specific numbers of airplane flight
hours, flight cycles, or both.
Published repair data
mean instructions for accomplishing repairs, which are
published for general use in structural repair
manuals and service bulletins (or equivalent types
of documents).
(a)
Applicability. Except as specified in
paragraph (g) of this section, this section applies
to transport category, turbine powered airplane
models with a type certificate issued after January
1, 1958, that as a result of original type
certification or later increase in capacity have—
(1)
A maximum type certificated passenger seating
capacity of 30 or more; or
(2)
A maximum payload capacity of 7,500 pounds or more.
(b)
List of fatigue critical baseline structure.
For airplanes specified in paragraph (a) of this
section, the holder of or applicant for a type
certificate must—
(1)
Identify fatigue critical baseline structure for all
airplane model variations and derivatives approved
under the type certificate; and
(2)
Develop and submit to the AFRO-CAA Oversight Office
for review and approval, a list of the structure
identified under paragraph (b)(1) of this section
and, upon approval, make the list available to
persons required to comply with 26.47 and 121.1109
and 129.109 of this chapter.
(c)
Existing and future published repair data.
For repair data published by a holder of a type
certificate that is current and for all later
published repair data, the holder of a type
certificate must—
(1)
Review the repair data and identify each repair
specified in the data that affects fatigue critical
baseline structure identified under paragraph (b)(1)
of this section;
(2)
Perform a DTE and develop the DTI for each repair
identified under paragraph (c)(1) of this section,
unless previously accomplished;
(3)
Submit the DT data to the AFRO-CAA Oversight Office
or its properly authorized designees for review and
approval; and
(4)
Upon approval, make the DTI available to persons
required to comply with 121.1109 and 129.109 of this
chapter.
(d)
Future repair data not published. For repair
data developed by a holder of a type certificate
that are approved and are not published, the type
certificate holder must accomplish the following for
repairs specified in the repair data that affect
fatigue critical baseline structure:
(1)
Perform a DTE and develop the DTI.
(2)
Submit the DT data required in paragraph (d)(1) of
this section for review and approval by the AFRO-CAA
Oversight Office or its properly authorized
designees.
(3)
Upon approval, make the approved DTI available to
persons required to comply with 121.1109 and 129.109
of this chapter.
(e)
Repair Evaluation Guidelines . The holder of
a type certificate for each airplane model subject
to this section must—
(1)
Develop repair evaluation guidelines for operators'
use that include—
(i)
A process for conducting surveys of affected
airplanes that will enable identification and
documentation of all existing repairs that affect
fatigue critical baseline structure identified under
paragraph (b)(1) of this section and 26.45(b)(2);
(ii) A process that will enable operators to obtain
the DTI for repairs identified under paragraph
(e)(1)(i) of this section; and
(iii) An implementation schedule for repairs covered
by the repair evaluation guidelines. The
implementation schedule must identify times when
actions must be taken as specific numbers of
airplane flight hours, flight cycles, or both.
(2)
Submit the repair evaluation guidelines to the
AFRO-CAA Oversight Office for review and approval.
(3)
Upon approval, make the guidelines available to
persons required to comply with 121.1109 and 129.109
of this chapter.
(4)
If the guidelines direct the operator to obtain
assistance from the holder of a type certificate,
make such assistance available in accordance with
the implementation schedule.
(f)
Compliance times. Holders of type
certificates must submit the following to the
AFRO-CAA Oversight Office or its properly authorized
designees for review and approval by the specified
compliance time:
(1)
The identified list of fatigue critical baseline
structure required by paragraph (b)(2) of this
section must be submitted or before issuance of the
type certificate, whichever occurs later.
(2)
For published repair data that are current, the DT
data required by paragraph (c)(3) of this section
must be submitted.
(3)
For repair data published ry 11, 2008, the DT data
required by paragraph (c)(3) of this section must be
submitted before AFRO-CAA approval of the repair
data.
(4)
For unpublished repair data developed, the DT data
required by paragraph (d)(1) of this section must be
submitted within 12 months of the airplane's return
to service or in accordance with a schedule approved
by the AFRO-CAA Oversight Office.
(5)
The repair evaluation guidelines required by
paragraph (e)(1) of this section must be submitted.
(g)
Exceptions. The requirements of this section
do not apply to the following transport category
airplane models:
(1)
Convair CV–240, 340, 440, if modified to include
turbine engines.
(2)
Vickers Armstrong Viscount, TCDS No. A–814.
(3)
Douglas DC–3, if modified to include turbine
engines, TCDS No. A–618.
(4)
Bombardier CL–44, TCDS No. 1A20.
(5)
Mitsubishi YS–11, TCDS No. A1PC.
(6)
British Aerospace BAC 1–11, TCDS No.
A5EU.
(7) Concorde, TCDS No. A45EU.
(8)
deHavilland D.H. 106 Comet 4C, TCDS No. 7A10.
(9)
deHavilland DHC–7, TCDS No. A20EA.
(10) VFW-Vereinigte Flugtechnische Werk VFW–614,
TCDS No.
A39EU.
(11) Illyushin Aviation IL 96T, TCDS No.
A54NM.
(12) Bristol Aircraft Britannia 305, TCDS No. 7A2.
(13) Handley Page Herald Type 300, TCDS No.
A21N.
(14) Avions Marcel Dassault—Breguet Aviation Mercure
100C, TCDS No. A40EU.
(15) Airbus Caravelle, TCDS No. 7A6.
(16) Lockheed L–300, TCDS No. A2S0.
(17) Boeing 707–100/–200, TCDS No. 4A21.
(18) Boeing 707–300/–400, TCDS No. 4A26.
(19) Boeing 720, TCDS No. 4A28.
(a)
Applicability. This section applies to
transport category airplanes subject to 26.43.
(b) Fatigue critical alteration structure.
For
existing and future alteration data developed by the
holder of a type certificate, the holder must—
(1)
Review existing alteration data and identify all
alterations that affect fatigue critical baseline
structure identified under 26.43(b)(1);
(2)
For each alteration identified under paragraph
(b)(1) of this section, identify any fatigue
critical alteration structure;
(3)
Develop and submit to the AFRO-CAA Oversight Office
for review and approval a list of the structure
identified under paragraph (b)(2) of this section;
and
(4)
Upon approval, make the list required in paragraph
(b)(3) of this section available to persons required
to comply with 121.1109 and 129.109 of this chapter.
(c)
DT Data. For existing and future alteration
data developed by the holder of a type certificate
that affect fatigue critical baseline structure
identified under 26.43(b)(1), unless previously
accomplished, the holder must—
(1)
Perform a DTE and develop the DTI for the alteration
and fatigue critical baseline structure that is
affected by the alteration;
(2)
Submit the DT data developed in accordance with
paragraphs (c)(1) of this section to the AFRO-CAA
Oversight Office or its properly authorized
designees for review and approval; and
(3)
Upon approval, make the DTI available to persons
required to comply with 121.1109 and 129.109 of this
chapter.
(d)
DT Data for Repairs Made to Alterations. For
existing and future repair data developed by a
holder of a type certificate, the type certificate
holder must—
(1)
Review the repair data, and identify each repair
that affects any fatigue critical alteration
structure identified under paragraph (b)(2) of this
section;
(2)
For each repair identified under paragraph (d)(1) of
this section, unless previously accomplished,
perform a DTE and develop DTI;
(3)
Submit the DT data developed in accordance with
paragraph (d)(2) of this section to the AFRO-CAA
Oversight Office or its properly authorized
designees for review and approval; and
(4)
Upon approval, make the DTI available to persons
required to comply with 121.1109 and 129.109 of this
chapter.
(e)
Compliance times. Holders of type
certificates must submit the following to the
AFRO-CAA Oversight Office or its properly authorized
designees for review and approval by the specified
compliance time:
(1)
The list of fatigue critical alteration structure
identified under paragraph (b)(3) of this section
must be submitted.
(2)
For alteration data developed and approved before,
the DT data required by paragraph (c)(2) of this
section must be submitted.
(3)
For alteration data approved DT data required by
paragraph (c)(2) of this section must be submitted
before initial approval of the alteration data.
(4)
For repair data developed and approved the DT data
required by paragraph (d)(2) of this section must be
submitted by.
(5)
For repair data developed and approved the DT data
required by paragraph (d)(2) of this section must be
submitted within 12 months after initial approval of
the repair data and before making the DT data
available to persons required to comply with
121.1109 and 129.109 of this chapter.
(a)
Applicability. This section applies to
transport category airplanes subject to 26.43.
(b) Fatigue critical alteration structure.
For
existing structural alteration data approved under a
supplemental certificate, the holder of the
supplemental certificate must—
(1)
Review the alteration data and identify all
alterations that affect fatigue critical baseline
structure identified under 26.43(b)(1);
(2)
For each alteration identified under paragraph
(b)(1) of this section, identify any fatigue
critical alteration structure;
(3)
Develop and submit to the AFRO-CAA Oversight Office
for review and approval a list of the structure
identified under paragraph (b)(2) of this section;
and
(4)
Upon approval, make the list required in paragraph
(b)(3) of this section available to persons required
to comply with 121.1109 and 129.109 of this chapter.
(c)
DT Data. For existing and future alteration
data developed by the holder of a supplemental type
certificate that affect fatigue critical baseline
structure identified under 26.43(b)(1), unless
previously accomplished, the holder of a
supplemental type certificate must—
(1)
Perform a DTE and develop the DTI for the alteration
and fatigue critical baseline structure that is
affected by the alteration;
(2)
Submit the DT data developed in accordance with
paragraphs (c)(1) of this section to the AFRO-CAA
Oversight Office or its properly authorized
designees for review and approval; and
(3)
Upon approval, make the DTI available to persons
required to comply with 121.1109 and 129.109 of this
chapter.
(d)
DT Data for Repairs Made to Alterations. For
existing and future repair data developed by the
holder of a supplemental holder of a supplemental
type certificate, the holder of a supplemental type
certificate must—
(1)
Review the repair data, and identify each repair
that affects any fatigue critical alteration
structure identified under paragraph (b)(2) of this
section;
(2)
For each repair identified under paragraph (d)(1) of
this section, unless previously accomplished,
perform a DTE and develop DTI;
(3)
Submit the DT data developed in accordance with
paragraph (d)(2) of this section to the AFRO-CAA
Oversight Office or its properly authorized
designees for review and approval; and
(4)
Upon approval, make the DTI available to persons
required to comply with 121.1109 and 129.109 of this
chapter.
(e)
Compliance times. Holders of supplemental
type certificates must submit the following to the
AFRO-CAA Oversight Office or its properly authorized
designees for review and approval by the specified
compliance time:
(1)
The list of fatigue critical alteration structure
required by paragraph (b)(3) of this section must be
submitted.
(2)
For alteration data developed and approved before
January 11, 2008, the DT data required by paragraph
(c)(2) of this section must be submitted.
(3)
For alteration data developed, the DT data required
by paragraph (c)(2) of this section must be
submitted before approval of the alteration data and
making it available to persons required to comply
with 121.1109 and 129.109 of this chapter.
(4)
For repair data developed and approved, 2008, the DT
data required by paragraph (d)(2) of this section
must be submitted by.
(5)
For repair data developed and approved, the DT data
required by paragraph (d)(2) of this section, must
be submitted within 12 months after initial approval
of the repair data and before making the DT data
available to persons required to comply with
121.1109 and 129.109 of this chapter.
(a)
Compliance plan. Except for applicants for
type certificates and supplemental type certificates
whose applications are submitted after, each person
identified in 26.43, 26.45, and 26.47, must submit a
compliance plan consisting of the following:
(1)
A project schedule identifying all major milestones
for meeting the compliance times specified in
26.43(f), 26.45(e), and 26.47(e), as applicable.
(2)
A proposed means of compliance with 26.43, 26.45,
and 26.47, as applicable.
(3)
A plan for submitting a draft of all compliance
items required by this subpart for review by the
AFRO-CAA Oversight Office not less than 60 days
before the applicable compliance date.
(b)
Compliance dates for compliance plans. The
following persons must submit the compliance plan
described in paragraph (a) of this section to the
AFRO-CAA Oversight Office for approval on the
following schedule:
(1)
For holders of type certificates.
(2)
For holders of supplemental type certificates.
(3)
For applicants for changes to type certificates
whose application are submitted before January 11,
2008.
(c)
Compliance Plan Implementation. Each affected
person must implement the compliance plan as
approved in compliance with paragraph (a) of this
section.
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