AD 2004-02-02

This amendment adopts a new airworthiness directive (AD), applicable to certain EMBRAER Model EMB-135 and EMB-145 series airplanes, that requires relocating the pitot 1 and pitot 2 drain valves from the nose landing gear compartment to the forward electronic compartment, and accomplishing follow-on actions. This action is necessary to prevent ice from damaging the pitot drain valves, which could cause airspeed indication errors, resulting in display of erroneous or misleading information to the flight crew. This action is intended to address the identified unsafe condition.

Final rule.

Empresa Brasileira De Aeronautica S.A. (EMBRAER): Amendment 39- 13437. Docket 2002-NM-330-AD.

Applicability: Model EMB-135 and -145 series airplanes; as listed in EMBRAER Service Bulletin 145-34-0070, Change 03, dated July 16, 2003; and EMBRAER Service Bulletin 145LEG-34-0002, dated September 23, 2002; certificated in any category.

Compliance: Required as indicated, unless accomplished previously.

To prevent ice from damaging the pitot drain valves, which could cause airspeed indication errors, resulting in display of erroneous or misleading information to the flight crew, accomplish the following:

Relocation

(a) Within 2,000 flight hours or 12 months after the effective date of this AD, whichever occurs first: Relocate the pitot 1 and pitot 2 drain valves from the nose landing gear compartment to the forward electronic compartment; and install a plug, washers, and a nut to close the hole in the structure where the pitot 1 and pitot 2 drain valves were removed; per the Accomplishment Instructions of EMBRAER Service Bulletin 145-34-0070, Change 03, dated July 16, 2003; or EMBRAER Service Bulletin 145LEG-34-0002, dated September 23, 2002; as applicable.

Installation

(b) After accomplishment of paragraph (a) of this AD but prior to further flight: Install a new placard and apply sealant on the placard per the Accomplishment Instructions of EMBRAER Service Bulletin 145-34-0070, Change 03, dated July 16, 2003; or EMBRAER Service Bulletin 145LEG-34-0002, dated September 23, 2002; as applicable.

Actions Accomplished Per Previous Issue of Service Bulletin

(c) Actions accomplished before the effective date of this AD per EMBRAER Service Bulletin 145-34-0070, original issue, dated April 23, 2002; EMBRAER Service Bulletin 145-34-0070, Change 01, dated September 23, 2002; and EMBRAER Service Bulletin 145-34-0070, Change 02, dated December 2, 2002; are considered acceptable for compliance with the corresponding action specified in thisAD.

Alternative Methods of Compliance

(d) In accordance with 14 CFR 39.19, the Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA, is authorized to approve alternative methods of compliance for this AD.

Incorporation by Reference

(e) Unless otherwise specified in this AD, the actions shall be done in accordance with EMBRAER Service Bulletin 145-34-0070, Change 03, dated July 16, 2003; or EMBRAER Service Bulletin 145LEG-34-0002, dated September 23, 2002; as applicable. EMBRAER Service Bulletin 145-34-0070, Change 03, contains the following effective pages:

Page No.
Change level shown on page
Date shown on page
1, 2, 5, 6
3, 4, 7-15
03
01
7-16-2003
9-23-2002

This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Copies may be obtained from Empresa Brasileira de Aeronautica S.A. (EMBRAER), P.O. Box 343--CEP 12.225, Sao Jose dos Campos--SP, Brazil. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC.

Note 1: The subject of this AD is addressed in Brazilian airworthiness directive 2002-06-01R1, dated November 8, 2002.

Effective Date

(f) This amendment becomes effective on March 3, 2004.

A proposal to amend part 39 of the Federal Aviation Regulations (14 CFR part 39) to include an airworthiness directive (AD) that is applicable to certain EMBRAER Model EMB-135 and EMB-145 series airplanes was published in the Federal Register on November 14, 2003 (68 FR 64572). That action proposed to require relocating the pitot 1 and pitot 2 drain valves from the nose landing gear compartment to the forward electronic compartment, and accomplishing follow-on actions.

Comments

Interested persons have been afforded an opportunity to participate in the making of this amendment. No comments have been submitted on the proposed AD or on the determination of the cost to the public.

Conclusion

The FAA has carefully reviewed the available data and determined that air safety and the public interest require the adoption of the rule as proposed.

Cost Impact

The FAA estimates that 374 airplanes of U.S. registry will be affected by this AD, that it will take approximately 2 work hours per airplane to accomplish the required actions, and that the average labor rate is $65 per work hour. Required parts will cost approximately between $301 and $304 per airplane. Based on these figures, the cost impact of the AD on U.S. operators is estimated to be between $161,194 and $162,316, or between $431 and $434 per airplane.

The cost impact figure discussed above is based on assumptions that no operator has yet accomplished any of the requirements of this AD action, and that no operator would accomplish those actions in the future if this AD were not adopted. The cost impact figures discussed in AD rulemaking actions represent only the time necessary to perform the specific actions actually required by the AD. These figures typically do not include incidental costs, such as the time required to gain access and close up, planning time, or time necessitated by other administrative actions.

Regulatory Impact

The regulations adopted herein will not have a substantial direct effect on the States, on the relationship between the national Government and the States, or on the distribution of power and responsibilities among the various levels of government. Therefore, it is determined that this final rule does not have federalism implications under Executive Order 13132.

For the reasons discussed above, I certify that this action (1) is not a "significant regulatory action" under Executive Order 12866; (2) is not a "significant rule" under DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and (3) will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. A final evaluation has been prepared for this action and it is contained in the Rules Docket. A copy of it may be obtained from the Rules Docket at the location provided under the caption ADDRESSES.

List of Subjects in 14 CFR Part 39

Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.

Adoption of the Amendment

Accordingly, pursuant to the authority delegated to me by the Administrator, the Federal Aviation Administration amends part 39 of the Federal Aviation Regulations (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. Section 39.13 is amended by adding the following new airworthiness directive: