[Federal Register Volume 60, Number 176 (Tuesday, September 12, 1995)]
[Proposed Rules]
[Page 47314]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 95-22592]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. 95-NM-40-AD]
Airworthiness Directives; Boeing Model 737 Series Airplanes
Equipped With BFGoodrich Main Landing Gear Brake Assemblies
AGENCY: Federal Aviation Administration, DOT.
ACTION: Proposed rule; withdrawal.
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SUMMARY: This action withdraws a notice of proposed rulemaking (NPRM)
that proposed a new airworthiness directive (AD), applicable to certain
Boeing Model 737 series airplanes. That action would have required
inspection of certain brake assemblies to determine the part number of
the torque plates, measurement of the amount of wear remaining on the
brake wear pin indicator, and removal of brake assemblies on which
misidentified torque plates were installed and replacement with
serviceable brakes. Since the issuance of the NPRM, the Federal
Aviation Administration (FAA) has received new data indicating that all
misidentified torque plates have been removed from airplanes and spare
part inventories. Accordingly, the proposed rule is withdrawn.
FOR FURTHER INFORMATION CONTACT: David M. Herron, Aerospace Engineer,
Systems and Equipment Branch, ANM-130S, FAA, Transport Airplane
Directorate, Seattle Aircraft Certification Office, 1601 Lind Avenue,
SW., Renton, Washington; 98055-4056; telephone (206) 227-2672; fax
(206) 227-1181.
SUPPLEMENTARY INFORMATION: A proposal to amend part 39 of the Federal
Aviation Regulations (14 CFR part 39) to add a new airworthiness
directive (AD), applicable to certain Boeing Model 737 series
airplanes, was published in the Federal Register as a Notice of
Proposed Rulemaking (NPRM) on April 17, 1995 (60 FR 19181). The
proposed rule would have required a one-time inspection of certain
brake assemblies to determine the part number of the torque plates,
measurement of the amount of wear remaining on the brake wear pin
indicator, and removal of brake assemblies on which misidentified
torque plates were installed and replacement with serviceable brakes.
That action was prompted by a report indicating that certain torque
plates were misidentified and installed on certain brake assemblies.
The proposed actions were intended to prevent decreased brake
performance during a rejected takeoff or landing when these brakes are
at or near their indicated wear limit.
Since the issuance of that NPRM, Boeing and BFGoodrich have
initiated an aggressive inspection program to ensure that the
misidentified torque plates are removed from airplanes and spare part
inventories. These manufacturers have provided substantiating data to
the FAA to account for all misidentified torque plates. (Boeing
submitted a letter dated May 3, 1995, and BFGoodrich transmitted a fax
memorandum dated May 17, 1995, which account for each misidentified
torque plate.)
Based upon the FAA's review of the data submitted by these
manufacturers, the FAA has determined that the previously identified
unsafe condition no longer exists. Accordingly, the proposed rule is
hereby withdrawn.
Withdrawal of this notice of proposed rulemaking constitutes only
such action, and does not preclude the agency from issuing another
notice in the future, nor does it commit the agency to any course of
action in the future.
Since this action only withdraws a notice of proposed rulemaking,
it is neither a proposed nor a final rule and therefore, is not covered
under Executive Order 12866, the Regulatory Flexibility Act, or DOT
Regulatory Policies and Procedures (44 FR 11034, February 26, 1979).
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Safety.
The Withdrawal
Accordingly, the notice of proposed rulemaking, Docket 95-NM-40-AD,
published in the Federal Register on April 17, 1995 (60 FR 19181), is
withdrawn.
Issued in Renton, Washington, on September 6, 1995.
Darrell M. Pederson,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 95-22592 Filed 9-11-95; 8:45 am]
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