Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-120 Series Airplanes, 5775-5776 [E8-1706]

Download as PDF Federal Register / Vol. 73, No. 21 / Thursday, January 31, 2008 / Proposed Rules on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. You can find our regulatory evaluation and the estimated costs of compliance in the AD Docket. List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Safety. The Proposed Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA proposes to amend 14 CFR part 39 as follows: PART 39—AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by adding the following new AD: Boeing: Docket No. FAA–2008–0090; Directorate Identifier 2007–NM–312–AD. Comments Due Date (a) We must receive comments by March 17, 2008. Affected ADs (b) None. Applicability (c) This AD applies to Boeing Model 747–100, 747–100B, 747–100B SUD, 747–200B, 747–200C, 747–200F, 747– 300, 747–400, 747–400D, 747–400F, 747SR, and 747SP series airplanes, certificated in any category; as identified in Boeing Alert Service Bulletin 747–28A2292, dated September 14, 2007. sroberts on PROD1PC70 with PROPOSALS Note 1: This AD requires revisions to certain operator maintenance documents to include new inspections. Compliance with these inspections is required by 14 CFR 91.403(c). For airplanes that have been previously modified, altered, or repaired in the areas addressed by these inspections, the operator may not be able to accomplish the inspections described in the revisions. In this situation, to comply with 14 CFR 91.403(c), the operator must request approval for an alternative method of compliance according to paragraph (j) of this AD. The request should include a description of changes to the required inspections that will ensure the continued operational safety of the airplane. Unsafe Condition (d) This AD results from fuel system reviews conducted by the manufacturer. We are issuing this AD to prevent electrical current from flowing through a motor operated valve (MOV) actuator into a fuel tank, which could create a VerDate Aug<31>2005 17:23 Jan 30, 2008 Jkt 214001 potential ignition source inside the fuel tank. This condition, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane. Compliance (e) Comply with this AD within the compliance times specified, unless already done. Measurement and Corrective Action (f) For all airplanes: Within 60 months after the effective date of this AD, measure the electrical bond resistance between the MOV actuators and airplane structure for the main, center, and auxiliary fuel tanks as applicable, and do all the applicable corrective actions, by accomplishing all of the applicable actions specified in the Accomplishment Instructions of Boeing Alert Service Bulletin 747–28A2292, dated September 14, 2007. The corrective actions must be accomplished before further flight. (g) For Model 747–400 series airplanes identified in paragraph 1.A of Boeing Alert Service Bulletin 747– 28A2294, dated September 21, 2007: Within 60 months after the effective date of this AD, measure the electrical bond resistance between the MOV actuators and airplane structure for the horizontal stabilizer fuel tanks, and do all the applicable corrective actions, by accomplishing all of the applicable actions specified in the Accomplishment Instructions of the service bulletin. The corrective actions must be accomplished before further flight. Maintenance Program Revision (h) For Model 747–100, 747–100B, 747–100B SUD, 747–200B, 747–200C, 747–200F, 747–300, 747SR, and 747SP series airplanes: Concurrently with accomplishing the actions required by paragraph (f) of this AD, revise the FAAapproved maintenance program by incorporating AWL No. 28–AWL–21 of Section D of the Boeing 747–100/200/ 300/SP Airworthiness Limitations (AWLs) and Certification Maintenance Requirements (CMRs), D6–13747–CMR, Revision January 2007. Accomplishing the revision in accordance with a later revision of Document D6–13747–CMR is an acceptable method of compliance if the revision is approved by the Manager, Seattle Aircraft Certification Office (ACO), FAA. (i) For Model 747–400, 747–400D, and 747–400F series airplanes: Concurrently with accomplishing the applicable actions required by paragraph (f) and (g) of this AD, revise the FAA-approved maintenance program by incorporating PO 00000 Frm 00014 Fmt 4702 Sfmt 4702 5775 AWL No. 28–AWL–27 of Subsection D of the Boeing 747–400 Maintenance Planning Data (MPD) Document, D621U400–9, Section 9, Revision December 2006 R1. Accomplishing the revision in accordance with a later revision of the MPD is an acceptable method of compliance if the revision is approved by the Manager, Seattle ACO, FAA. Alternative Methods of Compliance (AMOCs) (j)(1) The Manager, Seattle ACO, FAA, ATTN: Sulmo Mariano, Aerospace Engineer, Propulsion Branch, ANM– 140S, 1601 Lind Avenue, SW., Renton, Washington 98057–3356; telephone (425) 917–6501; fax (425) 917–6590; has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. (2) To request a different method of compliance or a different compliance time for this AD, follow the procedures in 14 CFR 39.19. Before using any approved AMOC on any airplane to which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. Issued in Renton, Washington, on January 14, 2008. Stephen P. Boyd, Assistant Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E8–1705 Filed 1–30–08; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Directorate Identifier 2000–NM–120–AD] RIN 2120–AA64 Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB–120 Series Airplanes Federal Aviation Administration, DOT. ACTION: Proposed rule; withdrawal. AGENCY: SUMMARY: This action withdraws a notice of proposed rulemaking (NPRM) that proposed a new airworthiness directive (AD), applicable to certain EMBRAER Model EMB–120 series airplanes. That action would have required repetitive calibration testing of potentiometers to detect noisy signals, replacement of only those with noisy signals, and reporting results of the E:\FR\FM\31JAP1.SGM 31JAP1 5776 Federal Register / Vol. 73, No. 21 / Thursday, January 31, 2008 / Proposed Rules calibration tests of the potentiometers and the readouts of the flight data recorder (FDR) to the airplane manufacturer. Since the issuance of the NPRM, the Federal Aviation Administration (FAA) has determined that while a noisy or defective potentiometer may hamper the ability to access certain aircraft data in support of either an accident or incident investigation or just general maintenance activities, there is no direct effect on the aircraft’s ability to be operated safely. Accordingly, the proposed rule is withdrawn. FOR FURTHER INFORMATION CONTACT: Todd Thompson, Aerospace Engineer, International Branch, ANM–116, Transport Airplane Directorate, FAA, 1601 Lind Avenue, SW., Renton, Washington 98057–3356; telephone (425) 227–1175; fax (425) 227–1149. 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 EMBRAER Model EMB–120 series airplanes, was published in the Federal Register as a second supplemental Notice of Proposed Rulemaking (NPRM) on February 1, 2005 (70 FR 5070). The proposed rule would have required repetitive calibration testing of potentiometers to detect noisy signals, replacement of only those with noisy signals, and reporting results of the calibration tests of the potentiometers and the readouts of the flight data recorder (FDR) to the airplane manufacturer. The proposed actions were intended to prevent the potentiometers that provide information on the positions of the primary flight controls to the FDR from transmitting noisy signals or becoming improperly calibrated, resulting in the transmission of incomplete or inaccurate data to the FDR. ailerons, elevators, and rudder of the subject airplanes, which is part of the manufacturer’s recommended maintenance program. FAA’s Conclusions Upon further consideration, the FAA has determined that no unsafe condition exists. Accordingly, the proposed rule is hereby withdrawn. Withdrawal of this second supplemental NPRM constitutes only such action, and does not preclude the agency from issuing another action in the future, nor does it commit the agency to any course of action in the future. Regulatory Impact 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 second supplemental notice of proposed rulemaking, Directorate Identifier 2000– NM–120–AD, published in the Federal Register on February 1, 2005 (70 FR 5070), is withdrawn. Issued in Renton, Washington, on January 15, 2008. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E8–1706 Filed 1–30–08; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION sroberts on PROD1PC70 with PROPOSALS Actions That Occurred Since the Second Supplemental NPRM Was Issued Federal Aviation Administration Since the issuance of the second supplemental NPRM, the FAA has determined that while a noisy or defective potentiometer may hamper the ability to access certain aircraft data in support of either an accident or incident investigation or just general maintenance activities, there is no direct effect on the aircraft’s ability to be operated safely. On December 7, 2007, we issued Special Airworthiness Information Bulletin (SAIB) NM–08/10 to recommend calibrating, testing, and replacing certain potentiometers to the [Docket No. FAA–2007–29260; Airspace Docket 07–ASO–24] VerDate Aug<31>2005 17:23 Jan 30, 2008 Jkt 214001 14 CFR Part 71 Proposed Establishment of Class E Airspace; Winona, MS Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking. AGENCY: SUMMARY: This action proposes to establish Class E airspace at Winona, MS. An Area Navigation (RNAV) Global Positioning System (GPS) Standard Instrument Approach Procedures (SIAP) Runways (RWY) 03–21 has been PO 00000 Frm 00015 Fmt 4702 Sfmt 4702 developed for Winona-Montgomery County Airport. As a result, controlled airspace extending upward from 700 feet Above Ground Level (AGL) is needed to contain the SIAP and for Instrument Flight Rule (IFR) operations at Winona-Montgomery County Airport. The operating status of the airport will change from Visual Flight Rules (VFR) to include IFR operations concurrent with the publication of the SIAP. This action enhances the safety and airspace management of Winona-Montgomery County Airport. DATES: Comments must be received on or before March 17. 2008. ADDRESSES: Send comments on this proposal to the Docket Management Facility, U.S. Department of Transportation, Docket Operations, M– 30, 1200 New Jersey Ave., SE. West Building, Ground Floor, Room W12– 140, Washington, DC 20590; telephone: 1–800–647–5527. You must identify the docket number FAA–2007–29260; Airspace Docket 07–ASO–24, at the beginning of your comments. You may also submit comments on the Internet at https://www.regulations.gov. You may review the public docket containing the proposal, any comments received, and any final disposition in person in the Dockets Office between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. An informal docket may also be examined during normal business hours at the office of the Eastern Service Center, Federal Aviation Administration, Room 210, 1701 Columbia Avenue, College Park, Georgia 30337. FOR FURTHER INFORMATION CONTACT: Melinda Giddens, System Support, Eastern Service Center, Federal Aviation Administration, P.O. Box 20636, Atlanta, Georgia 30320; telephone (404) 305–5610. SUPPLEMENTARY INFORMATION: Comments Invited Interested parties are invited to participate in this proposed rulemaking by submitting such written data, view or arguments as they may desire. Comments that provide the factual basis supporting the views and suggestions presented are particularly helpful in developing reasoned regulatory decisions on the proposal. Comments are specifically invited on the overall regulatory, aeronautical, economic, environmental, and energy-related aspects of the proposal. Communications should identify both docket numbers and be submitted in triplicate to the address listed above. Those wishing the FAA to acknowledge E:\FR\FM\31JAP1.SGM 31JAP1

Agencies

[Federal Register Volume 73, Number 21 (Thursday, January 31, 2008)]
[Proposed Rules]
[Pages 5775-5776]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E8-1706]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Directorate Identifier 2000-NM-120-AD]
RIN 2120-AA64


Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. 
(EMBRAER) Model EMB-120 Series Airplanes

AGENCY: Federal Aviation Administration, DOT.

ACTION: Proposed rule; withdrawal.

-----------------------------------------------------------------------

SUMMARY: This action withdraws a notice of proposed rulemaking (NPRM) 
that proposed a new airworthiness directive (AD), applicable to certain 
EMBRAER Model EMB-120 series airplanes. That action would have required 
repetitive calibration testing of potentiometers to detect noisy 
signals, replacement of only those with noisy signals, and reporting 
results of the

[[Page 5776]]

calibration tests of the potentiometers and the readouts of the flight 
data recorder (FDR) to the airplane manufacturer. Since the issuance of 
the NPRM, the Federal Aviation Administration (FAA) has determined that 
while a noisy or defective potentiometer may hamper the ability to 
access certain aircraft data in support of either an accident or 
incident investigation or just general maintenance activities, there is 
no direct effect on the aircraft's ability to be operated safely. 
Accordingly, the proposed rule is withdrawn.

FOR FURTHER INFORMATION CONTACT: Todd Thompson, Aerospace Engineer, 
International Branch, ANM-116, Transport Airplane Directorate, FAA, 
1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425) 
227-1175; fax (425) 227-1149.

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 EMBRAER Model EMB-120 series 
airplanes, was published in the Federal Register as a second 
supplemental Notice of Proposed Rulemaking (NPRM) on February 1, 2005 
(70 FR 5070). The proposed rule would have required repetitive 
calibration testing of potentiometers to detect noisy signals, 
replacement of only those with noisy signals, and reporting results of 
the calibration tests of the potentiometers and the readouts of the 
flight data recorder (FDR) to the airplane manufacturer. The proposed 
actions were intended to prevent the potentiometers that provide 
information on the positions of the primary flight controls to the FDR 
from transmitting noisy signals or becoming improperly calibrated, 
resulting in the transmission of incomplete or inaccurate data to the 
FDR.

Actions That Occurred Since the Second Supplemental NPRM Was Issued

    Since the issuance of the second supplemental NPRM, the FAA has 
determined that while a noisy or defective potentiometer may hamper the 
ability to access certain aircraft data in support of either an 
accident or incident investigation or just general maintenance 
activities, there is no direct effect on the aircraft's ability to be 
operated safely.
    On December 7, 2007, we issued Special Airworthiness Information 
Bulletin (SAIB) NM-08/10 to recommend calibrating, testing, and 
replacing certain potentiometers to the ailerons, elevators, and rudder 
of the subject airplanes, which is part of the manufacturer's 
recommended maintenance program.

FAA's Conclusions

    Upon further consideration, the FAA has determined that no unsafe 
condition exists. Accordingly, the proposed rule is hereby withdrawn.
    Withdrawal of this second supplemental NPRM constitutes only such 
action, and does not preclude the agency from issuing another action in 
the future, nor does it commit the agency to any course of action in 
the future.

Regulatory Impact

    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 second supplemental notice of proposed rulemaking, 
Directorate Identifier 2000-NM-120-AD, published in the Federal 
Register on February 1, 2005 (70 FR 5070), is withdrawn.

    Issued in Renton, Washington, on January 15, 2008.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
 [FR Doc. E8-1706 Filed 1-30-08; 8:45 am]
BILLING CODE 4910-13-P
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