[Federal Register Volume 77, Number 21 (Wednesday, February 1, 2012)]
[Rules and Regulations]
[Pages 4890-4891]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-2170]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Parts 27 and 29
[Docket No. FAA-2009-0660; Amdt. Nos. 27-47A, 29-54A; and Docket No.
FAA-2009-0413; Amdt. No. 29-55A]
RIN 2120-AJ52, 2120-AJ51
Damage Tolerance and Fatigue Evaluation for Composite Rotorcraft
Structures, and Damage Tolerance and Fatigue Evaluation for Metallic
Structures; Correction
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule; correction.
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SUMMARY: The FAA is correcting two final rules, ``Damage Tolerance and
Fatigue Evaluation for Composite Rotorcraft Structures'' (76 FR 74655),
published December 1, 2011, and ``Damage Tolerance and Fatigue
Evaluation for Metallic Structures'' (76 FR 75435), published December
2, 2011. In the ``Composite Rotorcraft Structures'' rule, the FAA
amended its regulations to require evaluation of fatigue and residual
static strength of composite rotorcraft structures using a damage
tolerance evaluation, or a fatigue evaluation if the applicant
establishes that a damage tolerance evaluation is impractical. In the
``Metallic Structures'' rule, the FAA amended its regulations to
address advances in structural fatigue substantiation technology for
metallic structures to provide an increased level of safety by avoiding
or reducing the likelihood of the catastrophic fatigue failure of a
metallic structure. This document corrects errors in the preamble of
those two documents by adding a statement advising that affected
parties do not need to comply with the information collection
requirements until the Office of Management and Budget (OMB) approves
the collections.
DATES: This correction is effective February 1, 2012. The ``Composite
Rotorcraft Structures'' final rule becomes effective January 30, 2012.
The ``Metallic Structures'' final rule becomes effective January 31,
2012.
FOR FURTHER INFORMATION CONTACT: For technical questions concerning
this action, contact Sharon Y. Miles, Regulations and Policy Group,
Rotorcraft Directorate, ASW-111, Federal Aviation Administration, 2601
Meacham Boulevard, Fort Worth, Texas 76137; telephone (817) 222-5122;
facsimile (817) 222-5961; email
[[Page 4891]]
sharon.y.miles@faa.gov. For legal questions concerning this action,
contact Steve C. Harold, Directorate Counsel, ASW-7G, Federal Aviation
Administration, 2601 Meacham Boulevard, Fort Worth, Texas 76137,
telephone (817) 222-5099; facsimile (817) 222-5945, email
steve.c.harold@faa.gov.
SUPPLEMENTARY INFORMATION:
Background
On December 1, 2011, the FAA published the final rule entitled,
``Damage Tolerance and Fatigue Evaluation for Composite Rotorcraft
Structures'' (76 FR 74655). On December 2, 2011, the FAA published the
final rule entitled, ``Damage Tolerance and Fatigue Evaluation for
Metallic Structures'' (76 FR 75435).
In the ``Composite Rotorcraft Structures'' final rule, the FAA
amended its regulations to require evaluation of fatigue and residual
static strength of composite rotorcraft structures using a damage
tolerance evaluation, or a fatigue evaluation if the applicant
establishes that a damage tolerance evaluation is impractical.
In the ``Metallic Structures'' final rule, the FAA amended its
regulations to address advances in structural fatigue substantiation
technology for metallic structures. This provides an increased level of
safety by avoiding or reducing the likelihood of the catastrophic
fatigue failure of a metallic structure. These increased safety
requirements help ensure that should serious accidental damage occur
during manufacturing or within the operational life of the rotorcraft,
the remaining structure could withstand, without failure, any fatigue
loads that are likely to occur, until the damage is detected or the
part is replaced.
Both final rules included information collection requirements.
However, the FAA inadvertently neglected to include a statement
advising affected parties that they are not required to comply with
these portions of the regulations until the Office of Management and
Budget (OMB) approves the collections and assigns control numbers under
the Paperwork Reduction Act of 1995. The FAA will publish in the
Federal Register a notice of the control numbers assigned by OMB when
these information collection requirements are approved.
Corrections
In FR Doc. 2011-30945, beginning on page 74655 in the Federal
Register of December 1, 2011, make the following correction:
On page 74655, in the second column, after ``Dates: Effective
January 30, 2012.'', insert ``Affected parties, however, are not
required to comply with the information collection requirement in
Sec. Sec. 27.573 and 29.573 until the Office of Management and Budget
(OMB) approves the collection and assigns a control number under the
Paperwork Reduction Act of 1995. The FAA will publish in the Federal
Register a notice of the control number assigned by the Office of
Management and Budget (OMB) for this information collection
requirement.''
In FR Doc. 2011-30941, beginning on page 75435 in the Federal
Register of December 2, 2011, make the following correction:
On page 75435, in the second column, after ``Dates: Effective
January 31, 2012.'', insert ``Affected parties, however, are not
required to comply with the information collection requirement in Sec.
29.571 until the Office of Management and Budget (OMB) approves the
collection and assigns a control number under the Paperwork Reduction
Act of 1995. The FAA will publish in the Federal Register a notice of
the control number assigned by the Office of Management and Budget
(OMB) for this information collection requirement.''
Issued in Washington, DC, on January 26, 2012.
Pamela Hamilton-Powell,
Director, Office of Rulemaking.
[FR Doc. 2012-2170 Filed 1-27-12; 8:45 am]
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