Federal Register / Vol. 72, No. 137 / Wednesday, July 18, 2007 / Rules and Regulations 39307 

with the first 3 being the country code 

(840 for the United States), the alpha 

characters USA, or the numeric code 

assigned to the manufacturer of the 

identification device by the 

International Committee on Animal 

Recording. 

* * * * * 

Official eartag. An identification tag 

providing unique identification for 

individual animals. An official eartag 

which contains or displays an AIN with 

an 840 prefix must bear the U.S. shield. 

The design, size, shape, color, and other 

characteristics of the official eartag will 

depend on the needs of the users, 

subject to the approval of the 

Administrator. The official eartag must 

be tamper-resistant and have a high 

retention rate in the animal. Official 

eartags must adhere to one of the 

following numbering systems: 

(1) National Uniform Eartagging 

System. 

(2) Animal identification number 

(AIN). 

(3) Premises-based number system. 

The premises-based number system 

combines an official premises 

identification number (PIN), as defined 

in this section, with a producer’s 

livestock production numbering system 

to provide a unique identification 

number. The PIN and the production 

number must both appear on the official 

tag. 

(4) Any other numbering system 

approved by the Administrator for the 

identification of animals in commerce. 

* * * * * 

Premises identification number (PIN). 

A nationally unique number assigned by 

a State, Tribal, and/or Federal animal 

health authority to a premises that is, in 

the judgment of the State, Tribal, and/ 

or Federal animal health authority, a 

geographically distinct location from 

other premises. The premises 

identification number is associated with 

an address, geospatial coordinates, and/ 

or other location descriptors which 

provide a verifiably unique location. 

The premises identification number 

may be used in conjunction with a 

producer’s own livestock production 

numbering system to provide a unique 

identification number for an animal. 

The premises identification number 

may consist of: 

(1) The State’s two-letter postal 

abbreviation followed by the premises’

assigned number; or 

(2) A seven-character alphanumeric 

code, with the right-most character 

being a check digit. The check digit 

number is based upon the ISO 7064 

Mod 36/37 check digit algorithm. 

* * * * * 

Done in Washington, DC, this 12th day of 

July 2007. 

Kevin Shea, 

Acting Administrator, Animal and Plant 

Health Inspection Service. 

[FR Doc. E7–13932 Filed 7–17–07; 8:45 am] 

BILLING CODE 3410–34–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2007–27154; Directorate 

Identifier 2006–NM–139–AD; Amendment 

39–15127; AD 2007–14–05] 

RIN 2120–AA64 

Airworthiness Directives; Airbus Model 

A310 and A300–600 Series Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for all 

Airbus Model A310 and A300–600 

series airplanes. This AD requires 

revising the Airworthiness Limitations 

section of the Instructions for Continued 

Airworthiness by incorporating new and 

revised certification maintenance 

requirements. This AD results from the 

manufacturer determining that 

additional and revised certification 

maintenance requirements are necessary 

in order to ensure continued operational 

safety of the affected airplanes. We are 

issuing this AD to prevent safetysignificant latent failures that would, in 

combination with one or more other 

specific failures or events, result in a 

hazardous or catastrophic failure 

condition of avionics, hydraulic 

systems, fire detection systems, fuel 

systems, or other critical systems. 

DATES: This AD becomes effective 

August 22, 2007. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in the AD 

as of August 22, 2007. 

ADDRESSES: You may examine the AD 

docket on the Internet at http:// 

dms.dot.gov or in person at the U.S. 

Department of Transportation, Docket 

Operations, M–30, West Building 

Ground Floor, Room W12–140, 1200 

New Jersey Avenue, SE., Washington, 

DC. 

Contact Airbus, 1 Rond Point Maurice 

Bellonte, 31707 Blagnac Cedex, France, 

for service information identified in this 

AD. 

FOR FURTHER INFORMATION CONTACT: Tom 

Stafford, Aerospace Engineer, 

International Branch, ANM–116, FAA, 

Transport Airplane Directorate, 1601 

Lind Avenue, SW., Renton, Washington 

98057–3356; telephone (425) 227–1622; 

fax (425) 227–1149. 

SUPPLEMENTARY INFORMATION: 

Examining the Docket 

You may examine the airworthiness 

directive (AD) docket on the Internet at 

http://dms.dot.gov or in person at the 

Docket Operations office between 9 a.m. 

and 5 p.m., Monday through Friday, 

except Federal holidays. The Docket 

Operations office (telephone (800) 647–

5527) is located on the ground floor of 

the West Building at the street address 

stated in the ADDRESSES section. 

Discussion 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an AD that would 

apply to all Airbus Model A310 

airplanes and Model A300–600 series 

airplanes. That NPRM was published in 

the Federal Register on February 6, 

2007 (72 FR 5362). That NPRM 

proposed to require revising the 

Airworthiness Limitations section of the 

Instructions for Continued 

Airworthiness by incorporating new and 

revised certification maintenance 

requirements (CMRs). 

Comments 

We provided the public the 

opportunity to participate in the 

development of this AD. We have 

considered the comments received. 

Request for Transition Period/Grace 

Period for Certain Maintenance 

Significant Item (MSI) Tasks 

Airbus requests that we give a 

transition/grace period of approximately 

2,000 flight hours (or twelve months) for 

the tasks specified in MSI 78.30.00 of 

the CMRs, ‘‘thrust reverser actuation 

and cowling for airplanes that have 

installed a third line of defense 

(TLOD).’’ Airbus states that the service 

bulletins that introduce the TLOD have 

been available since 2001. Airbus notes 

that this means that some airplanes 

might have exceeded the 7,000-flighthour threshold for doing the MSI 

requirements and, per the NPRM, the 

actions specified in the MSI would be 

required for those airplanes within 3 

months after the effective date of the 

AD. Based upon approximate annual 

utilization data, Airbus proposes a 

transition period of 2,000 flight hours or 

12 months. 

We agree to add a transition/grace 

period for the MSI 78.30.00 tasks for the 


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39308 Federal Register / Vol. 72, No. 137 / Wednesday, July 18, 2007 / Rules and Regulations 

reasons Airbus stated. We have 

determined that providing this period 

for the tasks specified in MSI 78.30.00, 

as recommended by the manufacturer, 

will not adversely affect safety. We have 

added a new paragraph (g) to this AD 

that gives a transition/grace period for 

MSI 78.30.00 tasks, and we have revised 

paragraph (f) of this AD to refer to that 

new paragraph. 

Request To Allow for Adjustments of 

Two Star CMRs 

FedEx requests that the NPRM 

include a mechanism to allow for 

adjustments of two star CMRs in 

accordance with an operator’s approved 

escalation practices or by an approved 

reliability program. FedEx states that the 

NPRM would require that operators 

request an alternative method of 

compliance (AMOC) in order to escalate 

compliance times specified in the CMRs 

and this would increase the burden for 

operators. In addition, FedEx believes 

that any adjustments should be able to 

be granted by the FAA, and not the 

Direction Generale de l’Aviation Civile 

(DGAC), which is the airworthiness 

authority for France, as specified in the 

CMRs. 

We partially agree with the 

commenter. As discussed in advisory 

circular AC 25–19, task intervals for two 

star CMRs may be adjusted using an 

operator’s approved escalation practice 

or an approved reliability program. 

However, two star CMRs require an 

FAA-approved letter for any tasks to be 

changed or deleted. This AD allows 

adjustments to intervals as specified in 

Section 4 of the CMRs, ‘‘Handling of 

Certification Maintenance 

Requirements’’ and requires that the 

task may not be changed or deleted 

without prior approval from the aircraft 

certification office (ACO) of the FAA. 

Therefore, an AMOC is required for 

changes to a task but not for adjustments 

of the task intervals. 

We agree that adjustments should be 

granted by the FAA. We have revised 

paragraph (f) of this AD to clarify that 

‘‘where the CMRs specify to contact the 

DGAC, operators are required to contact 

the FAA for such approvals.’’

Request To Allow Short-Term 

Extensions 

FedEx requests that we allow for 

exceptional short-term flight-hour or 

flight-cycle extensions for specific tasks. 

FedEx states that the CMRs specify 

these extensions are to be submitted to 

the DGAC for approval, but believes that 

these extensions should be granted by 

the FAA. 

We partially agree with the 

commenter’s request. We already allow 

for short-term extensions as specified in 

the CMRs. The short-term extension 

mechanism is clearly stated in Section 

5 of the CMRs, ‘‘Exceptional Short-Term 

Extensions.’’ It is further stated in 

Section 5, that short-term extensions up 

to the maximum values may be granted 

without consultation with the DGAC. 

Therefore, only extensions in excess of 

those defined in Section 5 require 

further FAA approval. In this case, 

operators will need to request an AMOC 

from the FAA. We have not revised this 

AD in this regard. 

However, as stated previously, we 

have revised paragraph (f) of this AD to 

clarify that where the CMRs specify to 

contact the DGAC, the operators must 

contact the FAA. 

Request To Revise Model Designations 

Air Transport Association (ATA) and 

UPS request that we revise the model 

designations in the NPRM. ATA notes 

that because we have called out all the 

Model A300–600 designations earlier in 

the NPRM, we should refer to only the 

Model A300–600 series aircrafts in 

paragraph (f) of the NPRM. UPS points 

out that the model designations for the 

CMRs in paragraph (f) of the NPRM 

need to be revised. 

We agree to revise the model 

designations. Since the NPRM was 

issued, the type certificate data sheet for 

the affected models has been revised. 

We have revised the applicability and 

model designations specified in the AD 

to identify model designations as 

published in the most recent type 

certificate data sheet for the affected 

models. 

Request for Clarification of Proposed 

Requirements 

FedEx requests that we clarify the 

proposed requirements. FedEx 

questions whether revision of an 

operator’s approved maintenance 

program to include the latest CMR 

revision would be all that is required by 

the NPRM, or if individual CMR 

inspections would be deemed 

mandatory and therefore would require 

repetitive tracking. 

Concerning FedEx’s request for 

clarification, we infer that the 

commenter is wondering if, after 

revising its copy of the Airworthiness 

Limitation section, there are other 

required actions such as ensuring that 

the operator’s maintenance program is 

updated to incorporate the actions 

specified in the revised Airworthiness 

Limitations. Ensuring that one’s 

maintenance program and the actions of 

its maintenance personnel are in 

accordance with the Airworthiness 

Limitations is required but not by the 

AD. Section 91.403(c) of the Federal 

Aviation Regulations (14 CFR 91.403(c)) 

specifies that no person may operate an 

aircraft for which airworthiness 

limitations have been issued unless 

those limitations have been complied 

with. Therefore, there is no need to 

further expand the requirements of the 

AD beyond that which was proposed 

because section 91.403(c) already 

imposes the appropriate required action 

after the airworthiness limitations are 

revised. We have not revised this AD in 

this regard. 

Request To Reference Later Approved 

Revisions 

FedEx and UPS request that we refer 

to later approved revisions of the CMRs. 

FedEx notes that the CMRs seem to be 

revised regularly. 

We cannot use the phrase ‘‘or later 

FAA-approved revisions’’ in an AD 

when referring to the service document 

because doing so violates Office of the 

Federal Register (OFR) regulations for 

approval of materials ‘‘incorporated by 

reference’’ in rules. In general terms, we 

are required by these OFR regulations to 

either publish the service document 

contents as part of the actual AD 

language, or submit the service 

document to the OFR for approval as 

‘‘referenced’’ material—in which case 

we may only refer to such material in 

the text of an AD. Since later approved 

revisions do not exist when the rule is 

issued, they cannot be submitted to the 

OFR for approval. To allow operators to 

use later revisions of the referenced 

document (issued after publication of 

the AD), either we must revise the AD 

to refer to specific later revisions, or 

operators must request approval to use 

later revisions as an alternative method 

of compliance with this AD under the 

provisions of paragraph (h) of this AD. 

We have not revised this AD in this 

regard. 

Request To Revise the Instructions in 

Paragraph (f) of the NPRM 

UPS requests that we revise the 

instructions in paragraph (f) of the 

NPRM. UPS notes that paragraph (f) 

specifies to revise the Airworthiness 

Limitations Section (ALS) of the 

Instructions for Continued 

Airworthiness. UPS states that this 

document is controlled by the 

manufacturer and cannot be revised by 

the operator. UPS concludes that 

operators cannot comply with this 

proposed requirement and suggests 

rewording the requirement to state, 

‘‘revise the Operators Maintenance 

Program.’’

We do not agree. The intent is to have 

all airworthiness limitations, regardless 


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Federal Register / Vol. 72, No. 137 / Wednesday, July 18, 2007 / Rules and Regulations 39309 

whether imposed by original type 

certification or by later AD, located in 

one immediately recognizable 

document. In 1980, the FAA identified 

the Airworthiness Limitations section of 

the Instructions for Continued 

Airworthiness as the appropriate 

document. We consider that not having 

all airworthiness limitations in one 

document could lead to confusion as to 

what is or is not a mandatory 

maintenance action as identified in 

Federal Aviation Regulation, part 25, 

Appendix H, section H25.4. This is the 

basis of our requirement to have each 

operator maintain a current copy of the 

Airworthiness Limitations section. Each 

operator is provided with a copy of the 

Airworthiness Limitations section of the 

Instructions for Continued 

Airworthiness and it is the operator’s 

copy that this AD requires to be revised 

to incorporate the latest revisions 

provided by the manufacturer. We have 

not revised this AD in this regard. 

Clarification of AMOC Paragraph 

We have revised this action to clarify 

the appropriate procedure for notifying 

the principal inspector before using any 

approved AMOC on any airplane to 

which the AMOC applies. 

Conclusion 

We have carefully reviewed the 

available data, including the comments 

received, and determined that air safety 

and the public interest require adopting 

the AD with the changes described 

previously. We have determined that 

these changes will neither increase the 

economic burden on any operator nor 

increase the scope of the AD. 

Costs of Compliance 

The following table provides the 

estimated costs for U.S. operators to 

comply with this AD. 

ESTIMATED COSTS

Action Work hours 

Average 

labor rate 

per hour 

Cost per 

airplane 

Number of 

U.S.- 

registered 

airplanes 

Fleet cost 

Revision of maintenance program ....................................... 1 $80 $80 203 $16,240 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 

Section 106, describes the authority of 

the FAA Administrator. Subtitle VII, 

Aviation Programs, describes in more 

detail the scope of the Agency’s 

authority. 

We are issuing this rulemaking under 

the authority described in Subtitle VII, 

Part A, Subpart III, Section 44701, 

‘‘General requirements.’’ Under that 

section, Congress charges the FAA with 

promoting safe flight of civil aircraft in 

air commerce by prescribing regulations 

for practices, methods, and procedures 

the Administrator finds necessary for 

safety in air commerce. This regulation 

is within the scope of that authority 

because it addresses an unsafe condition 

that is likely to exist or develop on 

products identified in this rulemaking 

action. 

Regulatory Findings 

We have determined that this AD will 

not have federalism implications under 

Executive Order 13132. This AD 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. 

For the reasons discussed above, I 

certify that this AD: 

(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. 

We prepared a regulatory evaluation 

of the estimated costs to comply with 

this AD and placed it in the AD docket. 

See the ADDRESSES section for a location 

to examine the regulatory evaluation. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

Adoption of the Amendment 

■ Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA amends 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 Federal Aviation 

Administration (FAA) amends § 39.13 

by adding the following new 

airworthiness directive (AD): 

2007–14–05 Airbus: Amendment 39–15127. 

Docket No. FAA–2007–27154; 

Directorate Identifier 2006–NM–139–AD. 

Effective Date 

(a) This AD becomes effective August 22, 

2007. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to all Airbus Model 

A310 series airplanes and Model A300–600 

series airplanes, certificated in any category. 

Note 1: This AD requires revisions to 

certain operator maintenance documents to 

include new inspections. Compliance with 

these actions 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 (h) of this AD. The request 

should include a description of changes to 

the required inspections that will ensure the 

continued damage tolerance of the affected 

structure. The FAA has provided guidance 

for this determination in Advisory Circular 

(AC) 25.1529–1. 

Unsafe Condition 

(d) This AD results from the manufacturer 

determining that additional and revised 

certification maintenance requirements are 

necessary in order to ensure continued 

operational safety of the affected airplanes. 

We are issuing this AD to prevent safetysignificant latent failures that would, in 

combination with one or more other specific 

failures or events, result in a hazardous or 

catastrophic failure condition of avionics, 

hydraulic systems, fire detection systems, 

fuel systems, or other critical systems. 

Compliance 

(e) You are responsible for having the 

actions required by this AD performed within 

the compliance times specified, unless the 

actions have already been done. 


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39310 Federal Register / Vol. 72, No. 137 / Wednesday, July 18, 2007 / Rules and Regulations 

Revise the Airworthiness Limitations 

Section of the Instructions for Continued 

Airworthiness 

(f) Within three months after the effective 

date of this AD, revise the Airworthiness 

Limitations section of the Instructions for 

Continued Airworthiness by incorporating 

Airbus A300–600 Certification Maintenance 

Requirements (CMRs) AI/ST5/829/85, Issue 

12, dated February 2005 (for Model A300–

600 series airplanes); or Airbus A310 CMR 

AI/ST5/849/85, Issue 12, dated February 

2005 (for Model A310 series airplanes); as 

applicable. Accomplish the actions specified 

in the applicable CMRs at the intervals 

specified in the applicable CMRs, except as 

provided by paragraph (g) of this AD. Where 

the CMRs specify to contact the Direction 

Ge ́ne ́rale de l’Aviation Civile (DGAC), 

operators are required to contact the 

Manager, International Branch, ANM–116, 

Transport Airplane Directorate, FAA, for 

such approvals. The actions must be 

accomplished in accordance with the 

applicable CMRs. 

Transition/Grace Period for Maintenance 

Significant Item (MSI) 78.30.00 Tasks 

(g) For tasks identified in MSI 78.30.00, 

‘‘Thrust Reverser Actuation and Cowling,’’ of 

Section 2, ‘‘CMR ‘Two Star’ Tasks,’’ of Airbus 

A300–600 CMR AI/ST5/829/85, Issue 12, 

dated February 2005; and Airbus A310 CMR 

AI/ST5/849/85, Issue 12, dated February 

2005: The initial compliance time is within 

2,000 flight cycles or 12 months after the 

effective date of this AD, whichever occurs 

later. Thereafter, actions identified in MSI 

78.30.00 must be accomplished within the 

repetitive interval specified in the applicable 

CMRs. Where the CMRs specify to contact 

the DGAC, operators are required to contact 

the Manager, International Branch, ANM–

116, for such approvals. The actions must be 

accomplished in accordance with the 

applicable CMRs. 

Alternative Methods of Compliance 

(AMOCs) 

(h)(1) The Manager, International Branch, 

ANM–116, Transport Airplane Directorate, 

FAA, has the authority to approve AMOCs 

for this AD, if requested in accordance with 

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. 

Related Information 

(i) French airworthiness directive F–2005–

123, dated July 20, 2005, also addresses the 

subject of this AD. 

Material Incorporated by Reference 

(j) You must use Airbus A300–600 

Certification Maintenance Requirements AI/ 

ST5/829/85, Issue 12, dated February 2005; 

or Airbus A310 Certification Maintenance 

Requirements AI/ST5/849/85, Issue 12, dated 

February 2005; as applicable; to perform the 

actions that are required by this AD, unless 

the AD specifies otherwise. The Director of 

the Federal Register approved the 

incorporation by reference of these 

documents in accordance with 5 U.S.C. 

552(a) and 1 CFR part 51. Contact Airbus, 1 

Rond Point Maurice Bellonte, 31707 Blagnac 

Cedex, France, for a copy of this service 

information. You may review copies at the 

FAA, Transport Airplane Directorate, 1601 

Lind Avenue, SW., Renton, Washington; or at 

the National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, call 

202–741–6030, or go to: http:// 

www.archives.gov/federal-register/cfr/ibrlocations.html. 

Issued in Renton, Washington, on June 26, 

2007. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. E7–13322 Filed 7–17–07; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2007–27861 Directorate 

Identifier 2007–CE–035–AD; Amendment 

39–15130; AD 2007–15–01] 

RIN 2120–AA64 

Airworthiness Directives; British 

Aerospace Regional Aircraft Jetstream 

HP.137 Jetstream Mk.1, Jetstream 

Series 200, Jetstream Series 3101, and 

Jetstream Model 3201 Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final Rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for the 

products listed above. This AD results 

from mandatory continuing 

airworthiness information (MCAI) 

issued by an aviation authority of 

another country to identify and correct 

an unsafe condition on an aviation 

product. The MCAI describes the unsafe 

condition as: 

In-service reports have been received by 

BAE of failed bolts fitted to frame 199 wing 

spigot post assembly. If left uncorrected 

failure of these bolts will severely 

compromise the structural integrity of the 

wing to fuselage attachment. Failure of which 

would lead to loss of the aircraft. 

We are issuing this AD to require 

actions to correct the unsafe condition 

on these products. 

DATES: This AD becomes effective 

August 22, 2007. 

On August 22, 2007, the Director of 

the Federal Register approved the 

incorporation by reference of certain 

publications listed in this AD. 

ADDRESSES: You may examine the AD 

docket on the Internet at http:// 

dms.dot.gov or in person at Document 

Management Facility, U.S. Department 

of Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–140, 1200 New Jersey 

Avenue, SE., Washington, DC 20590. 

FOR FURTHER INFORMATION CONTACT: 

Taylor Martin, Aerospace Engineer, 

FAA, Small Airplane Directorate, 901 

Locust, Room 301, Kansas City, 

Missouri 64106; telephone: (816) 329–

4138; facsimile: (816) 329–4090. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an AD that would 

apply to the specified products. That 

NPRM was published in the Federal 

Register on May 18, 2007 (72 FR 28005). 

That NPRM proposed to correct an 

unsafe condition for the specified 

products. The MCAI states: 

In-service reports have been received by 

BAE of failed bolts fitted to frame 199 wing 

spigot post assembly. If left uncorrected 

failure of these bolts will severely 

compromise the structural integrity of the 

wing to fuselage attachment. Failure of which 

would lead to loss of the aircraft. To address 

these concerns, BAE issued SB 57–JA020740 

original issue in February 2003 mandated by 

CAA AD 006–02–2003. Recently received 

additional information has caused BAE to 

raise the Service Bulletin to revision 2. 

Revision 2 of the SB introduces various 

changes. One is substantive, it relates to the 

need to check for correct washer installation. 

Incorrect installation could lead to fretting 

and fatigue crack initiation in the fitting 

followed by failure or bending loads in the 

bolt leading to failure of the affected bolts. If 

left uncorrected failure of these bolts or a 

wing fitting will severely compromise the 

structural integrity of the wing to fuselage 

attachment. Failure of which would lead to 

loss of the aircraft. This substantive change 

to the service bulletin necessitates the raising 

of this superseding AD. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

received no comments on the NPRM or 

on the determination of the cost to the 

public. 

Conclusion 

We reviewed the available data and 

determined that air safety and the 

public interest require adopting the AD 

as proposed. 


cprice-sewell on PROD1PC71 with RULES