AD 94-08-14

This amendment adopts a new airworthiness directive (AD), applicable to all Corporate Jets Model BAe 125-1000A series airplanes, that requires replacement of the white 'EMERG CONTCTRS' annunciator screen on roof panel 'CG' of the flight deck with an amber screen. This amendment is prompted by a report that the annunciator screen currently installed on these airplanes is not a color that would alert the flight crew that corrective action may be necessary. The actions specified by this AD are intended to ensure that the flight crew is alerted to conditions when standby electrical power is not available.

Final rule.

94-08-14 CORPORATE JETS LIMITED (FORMERLY BRITISH AEROSPACE): Amendment 39-8886. Docket 93-NM-69-AD.

Applicability: All Model BAe 125-1000A series airplanes, certificated in any category.

Compliance: Required as indicated, unless accomplished previously.

To ensure that the flight crew is aware that standby electrical power is not available, accomplish the following:

(a) Within 105 days after the effective date of this AD, replace the white 'EMERG CONTCTRS' annunciator screen on roof panel 'CG' of the flight deck with an amber screen in accordance with Corporate Jets Limited Service Bulletin SB.31-44-3645A, dated January 15, 1993.

(b) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector,who may add comments and then send it to the Manager, Standardization Branch, ANM-113.

NOTE: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Standardization Branch, ANM-113.

(c) Special flight permits may be issued in accordance with sections 21.197 and 21.199 Federal Aviation Regulations (14 CFR 21.197 and 21.199) to operate the airplane to a location where the requirements of this AD can be accomplished.

(d) The replacement shall be done in accordance with Corporate Jets Limited Service Bulletin SB.31-44-3645A, dated January 15, 1993. (NOTE: The issue date of that service bulletin is indicated only on "page 1 of 5"; no other page of the document is dated.) 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 Corporate Jets, Inc., 22070 Broderick Drive, Sterling, Virginia20166. 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.

(e) This amendment becomes effective on May 20, 1994.

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 all Corporate Jets Model BAe 125-1000A series airplanes was published in the Federal Register on November 29, 1993 (58 FR 62557). That action proposed to require replacement of the white 'EMERG CONTCTRS' annunciator screen on roof panel 'CG' of the flight deck with an amber screen.

Interested persons have been afforded an opportunity to participate in the making of this amendment. No comments were submitted in response to the proposal or the FAA's determination of the cost to the public. The FAA has determined that air safety and the public interest require the adoption of the rule as proposed.

The FAA estimates that 13 airplanes of U.S. registry will be affected by this AD, that it will take approximately 1 work hour per airplane to accomplish the required actions, and that the average labor rate is $55 per work hour. Required parts will be supplied by the manufacturer to operators at no cost. Based on these figures, the total cost impact of the AD on U.S. operators is estimated to be $715, or $55 per airplane.

The total 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 regulations adopted herein will not have substantial direct effects 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, in accordance with Executive Order 12612, it is determined that this final rule does not have sufficient federalism implications to warrant the preparation of a Federalism Assessment.

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 14 CFR part 39 of the Federal Aviation Regulations as follows:

PART 39 - AIRWORTHINESS DIRECTIVES
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. App. 1354(a), 1421 and 1423; 49 U.S.C. 106(g); and 14 CFR 11.89.

39.13 - [Amended]
2. Section 39.13 is amended by adding the following new airworthiness directive: