57402 Federal Register / Vol. 74, No. 214 / Friday, November 6, 2009 / Rules and Regulations 

Done at Washington, DC, this 2nd day of 

November 2009. 

Thomas J. Vilsack, 

Secretary of Agriculture. 

[FR Doc. E9–26747 Filed 11–5–09; 8:45 am] 

BILLING CODE 3410–90–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2009–1024; Directorate 

Identifier 2009–NM–182–AD; Amendment 

39–16083; AD 2008–05–18 R1] 

RIN 2120–AA64 

Airworthiness Directives; Fokker 

Model F.27 Mark 050, 200, 300, 400, 

500, 600, and 700 Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule; request for 

comments. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for the 

products listed above that would revise 

an existing AD. This AD results from 

mandatory continuing airworthiness 

information (MCAI) originated 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: 

Subsequent to accidents involving Fuel 

Tank System explosions in flight * * * and 

on ground, * * * Special Federal Aviation 

Regulation 88 (SFAR88) * * * required a 

safety review of the aircraft Fuel Tank 

System * * *. 

* * * * * 

Fuel Airworthiness Limitations are items 

arising from a systems safety analysis that 

have been shown to have failure mode(s) 

associated with an ‘unsafe condition’ * * *. 

These are identified in Failure Conditions for 

which an unacceptable probability of ignition 

risk could exist if specific tasks and/or 

practices are not performed in accordance 

with the manufacturers’ requirements. 

This AD requires actions that are 

intended to address the unsafe 

condition described in the MCAI. 

DATES: This AD becomes effective 

November 23, 2009. 

On April 16, 2008 (73 FR 13071, 

March 12, 2008), the Director of the 

Federal Register approved the 

incorporation by reference of certain 

publications listed in the AD. 

We must receive comments on this 

AD by December 21, 2009. 

ADDRESSES: You may send comments by 

any of the following methods: 

• Federal eRulemaking Portal: Go to 

http://www.regulations.gov. Follow the 

instructions for submitting comments. 

• Fax: (202) 493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–140, 1200 New Jersey 

Avenue, SE., Washington, DC 20590. 

• Hand Delivery: U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–40, 1200 New Jersey 

Avenue, SE., Washington, DC, between 

9 a.m. and 5 p.m., Monday through 

Friday, except Federal holidays. 

For service information identified in 

this AD, contact Fokker Services B.V., 

Technical Services Dept., P.O. Box 231, 

2150 AE Nieuw-Vennep, the 

Netherlands; telephone +31 (0)252–627– 

350; fax +31 (0)252–627–211; e-mail 

technicalservices.fokkerservices@

stork.com; Internet http:// 

www.myfokkerfleet.com. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http:// 

www.regulations.gov; or in person at the 

Docket Operations office between 9 a.m. 

and 5 p.m., Monday through Friday, 

except Federal holidays. The AD docket 

contains this AD, the regulatory 

evaluation, any comments received, and 

other information. The street address for 

the Docket Operations office (telephone 

(800) 647–5527) is in the ADDRESSES

section. Comments will be available in 

the AD docket shortly after receipt. 

FOR FURTHER INFORMATION CONTACT: Tom 

Rodriguez, Aerospace Engineer, 

International Branch, ANM–116, 

Transport Airplane Directorate, FAA, 

1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone 

(425) 227–1137; fax (425) 227–1149. 

SUPPLEMENTARY INFORMATION: 

Discussion 

On February 28, 2008, we issued AD 

2008–05–18, Amendment 39–15412 (73 

FR 13071, March 12, 2008). That AD 

applied to certain Fokker Model F.27 

Mark 050, 200, 300, 400, 500, 600, and 

700 airplanes. That AD required 

revising the Airworthiness Limitations 

Section (ALS) of the Instructions for 

Continued Airworthiness to incorporate 

new limitations for fuel tank systems. 

Critical design configuration control 

limitations (CDCCLs) are limitation 

requirements to preserve a critical 

ignition source prevention feature of the 

fuel tank system design that is necessary 

to prevent the occurrence of an unsafe 

condition. The purpose of a CDCCL is 

to provide instruction to retain the 

critical ignition source prevention 

feature during configuration change that 

may be caused by alterations, repairs, or 

maintenance actions. A CDCCL is not a 

periodic inspection. 

Since we issued that AD, we have 

determined that it is necessary to clarify 

the AD’s intended effect on spare and 

on-airplane fuel tank system 

components, regarding the use of 

maintenance manuals and instructions 

for continued airworthiness. 

Section 91.403(c) of the Federal 

Aviation Regulations (14 CFR 91.403(c)) 

specifies the following: 

No person may operate an aircraft for 

which a manufacturer’s maintenance manual 

or instructions for continued airworthiness 

has been issued that contains an 

airworthiness limitation section unless the 

mandatory * * * procedures * * * have 

been complied with. 

Some operators have questioned 

whether existing components affected 

by the new CDCCLs must be reworked. 

We did not intend for the AD to 

retroactively require rework of 

components that had been maintained 

using acceptable methods before the 

effective date of the AD. Owners and 

operators of the affected airplanes 

therefore are not required to rework 

affected components identified as 

airworthy or installed on the affected 

airplanes before the required revisions 

of the ALS. But once the CDCCLs are 

incorporated into the ALS, future 

maintenance actions on components 

must be done in accordance with those 

CDCCLs. 

FAA’s Determination 

This product has been approved by 

the aviation authority of another 

country, and is approved for operation 

in the United States. This new AD 

retains the requirements of the existing 

AD, and adds a new note to clarify the 

intended effect of the AD on spare and 

on-airplane fuel tank system 

components. We have renumbered 

subsequent notes accordingly. 

Explanation of Additional Change to 

AD 

AD 2008–05–18 allowed the use of 

alternative inspections, inspection 

intervals, or CDCCLs if they are part of 

a later revision of a Fokker 50/60 Fuel 

Airworthiness Limitation Items (ALI) 

and CDCCL Report SE–671, Issue 2, 

dated December 1, 2006; or Fokker 

Service Bulletin SBF27–28–070, 

Revision 1, dated January 8, 2008. That 

provision has been removed from this 

AD. Allowing the use of ‘‘a later 

revision’’ of a specific service document 

violates Office of the Federal Register 

policies for approving materials that are 


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Federal Register / Vol. 74, No. 214 / Friday, November 6, 2009 / Rules and Regulations 57403 

incorporated by reference. Affected 

operators, however, may request 

approval to use a later revision of the 

referenced service documents as an 

alternative method of compliance, 

under the provisions of paragraph (g) of 

this AD. 

Differences Between the AD and the 

MCAI or Service Information 

We have reviewed the MCAI and 

related service information and, in 

general, agree with their substance. But 

we might have found it necessary to use 

different words from those in the MCAI 

to ensure the AD is clear for U.S. 

operators and is enforceable. In making 

these changes, we do not intend to differ 

substantively from the information 

provided in the MCAI and related 

service information. 

We might also have required different 

actions in this AD from those in the 

MCAI in order to follow FAA policies. 

Any such differences are highlighted in 

a note within the AD. 

Costs of Compliance 

This revision imposes no additional 

economic burden. The current costs for 

this AD are repeated for the 

convenience of affected operators, as 

follows: 

We estimate that this AD will affect 

about 24 products of U.S. registry. We 

also estimate that it will take about 1 

work-hour per product to comply with 

the basic requirements of this AD. The 

average labor rate is $80 per work-hour. 

Based on these figures, we estimate the 

cost of this AD to the U.S. operators to 

be $1,920, or $80 per product. 

FAA’s Justification and Determination 

of the Effective Date 

This revision merely clarifies the 

intended effect on spare and on-airplane 

fuel tank system components, and 

makes no substantive change to the 

AD’s requirements. For this reason, it is 

found that notice and opportunity for 

prior public comment for this action are 

unnecessary, and good cause exists for 

making this amendment effective in less 

than 30 days. 

Comments Invited 

This AD is a final rule that involves 

requirements affecting flight safety, and 

we did not precede it by notice and 

opportunity for public comment. We 

invite you to send any written relevant 

data, views, or arguments about this AD. 

Send your comments to an address 

listed under the ADDRESSES section. 

Include ‘‘Docket No. FAA–2009–1024; 

Directorate Identifier 2009–NM–182– 

AD’’ at the beginning of your comments. 

We specifically invite comments on the 

overall regulatory, economic, 

environmental, and energy aspects of 

this AD. We will consider all comments 

received by the closing date and may 

amend this AD because of those 

comments. 

We will post all comments we 

receive, without change, to http:// 

www.regulations.gov, including any 

personal information you provide. We 

will also post a report summarizing each 

substantive verbal contact we receive 

about this AD. 

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 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 this AD: 

1. Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866; 

2. Is not a ‘‘significant rule’’ under the 

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. 

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 FAA amends § 39.13 by 

removing amendment 39–15412 (73 FR 

13071, March 12, 2008) and adding the 

following new AD: 

2008–05–18 R1 Fokker Services B.V.: 

Amendment 39–16083. Docket No. 

FAA–2009–1024; Directorate Identifier 

2009–NM–182–AD. 

Effective Date 

(a) This airworthiness directive (AD) 

becomes effective November 23, 2009. 

Affected ADs 

(b) This AD revises AD 2008–05–18, 

Amendment 39–15412. 

Applicability 

(c) This AD applies to Fokker Model F.27 

Mark 050 airplanes, all serial numbers; and 

Fokker F.27 Mark 200, 300, 400, 500, 600, 

and 700 airplanes, serial numbers 10102 

through 10692 inclusive; certificated in any 

category. 

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 (g)(1) 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. 

Subject 

(d) Air Transport Association (ATA) of 

America Code 28: Fuel. 

Reason 

(e) The mandatory continuing 

airworthiness information (MCAI) states: 

Subsequent to accidents involving Fuel 

Tank System explosions in flight * * * and 

on ground, the FAA published Special 

Federal Aviation Regulation 88 (SFAR 88) in 

June 2001. SFAR 88 required a safety review 

of the aircraft Fuel Tank System to determine 

that the design meets the requirements of 

FAR (Federal Aviation Regulation) § 25.901 

and § 25.981(a) and (b). 

A similar regulation has been 

recommended by the JAA (Joint Aviation 


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57404 Federal Register / Vol. 74, No. 214 / Friday, November 6, 2009 / Rules and Regulations 

Authorities) to the European National 

Aviation Authorities in JAA letter 04/00/02/ 

07/03–L024 of 3 February 2003. The review 

was requested to be mandated by NAA’s 

(National Aviation Authorities) using JAR 

(Joint Aviation Regulation) § 25.901(c), 

§ 25.1309. 

In August 2005 EASA published a policy 

statement on the process for developing 

instructions for maintenance and inspection 

of Fuel Tank System ignition source 

prevention (EASA D 2005/CPRO, http:// 

www.easa.eu.int/home/cert_policy

_statements_en.html) that also included the 

EASA expectations with regard to 

compliance times of the corrective actions on 

the unsafe and the not unsafe part of the 

harmonised design review results. On a 

global scale the TC (type certificate) holders 

committed themselves to the EASA 

published compliance dates (see EASA 

policy statement). The EASA policy 

statement has been revised in March 2006: 

the date of 31–12–2005 for the unsafe related 

actions has now been set at 01–07–2006. 

Fuel Airworthiness Limitations are items 

arising from a systems safety analysis that 

have been shown to have failure mode(s) 

associated with an ‘unsafe condition’ as 

defined in FAA’s memo 2003–112–15 ‘SFAR 

88—Mandatory Action Decision Criteria’. 

These are identified in Failure Conditions for 

which an unacceptable probability of ignition 

risk could exist if specific tasks and/or 

practices are not performed in accordance 

with the manufacturers’ requirements. 

This EASA Airworthiness Directive 

mandates the Fuel System Airworthiness 

Limitations, comprising maintenance/ 

inspection tasks and Critical Design 

Configuration Control Limitations (CDCCL) 

for the type of aircraft, that resulted from the 

design reviews and the JAA recommendation 

and EASA policy statement mentioned 

above. 

The corrective action includes revising the 

Airworthiness Limitations Section (ALS) of 

the Instructions for Continued Airworthiness 

to incorporate new limitations for fuel tank 

systems. 

Restatement of Requirements of AD 2008– 

05–18, With Changes to Compliance Method 

Actions and Compliance 

(f) Unless already done, do the following 

actions. 

(1) Within 3 months after April 16, 2008 

(the effective date of AD 2008–05–18), revise 

the ALS of the Instructions for Continued 

Airworthiness to incorporate the limits 

(inspections, thresholds, and intervals) 

specified in Fokker 50/60 Fuel Airworthiness 

Limitation Items (ALI) and Critical Design 

Configuration Control Limitations (CDCCL) 

Report SE–671, Issue 2, dated December 1, 

2006; or Fokker Service Bulletin SBF27–28– 

070, Revision 1, dated January 8, 2008; as 

applicable. For all tasks identified in Report 

SE–671 or Service Bulletin SBF27–28–070, 

the initial compliance times are as specified 

in Table 1 or Table 2 of this AD, as 

applicable. The repetitive inspections must 

be accomplished thereafter at the intervals 

specified in Report SE–671 or Service 

Bulletin SBF27–28–070, as applicable, except 

as provided by paragraphs (f)(3) and (g)(1) of 

this AD. 

TABLE 1—INITIAL COMPLIANCE TIMES FOR ALS REVISION FOR MODEL F.27 MARK 050 AIRPLANES

For— The later of— 

Task 280000–01 ................................... 102 months after April 16, 2008; or 102 months after the date of issuance of the original Dutch standard airworthiness certificate or the date of issuance of the original Dutch export certificate of airworthiness. 

Task 280000–02 ................................... 30 months after April 16, 2008; or 30 months after the date of issuance of the original Dutch standard 

airworthiness certificate or the date of issuance of the original Dutch export certificate of airworthiness. 

TABLE 2—INITIAL COMPLIANCE TIMES FOR ALS REVISION FOR MODEL F.27 MARK 200, 300, 400, 500, 600, AND 700 

AIRPLANES

For— The later of— 

Task 280000–01 ................................... 78 months after April 16, 2008; or 78 months after the date of issuance of the original Dutch standard 

airworthiness certificate or the date of issuance of the original Dutch export certificate of airworthiness. 

Task 280000–02 ................................... 18 months after April 16, 2008; or 18 months after the date of issuance of the original Dutch standard 

airworthiness certificate or the date of issuance of the original Dutch export certificate of airworthiness. 

(2) Within 3 months after April 16, 2008, 

revise the ALS of the Instructions for 

Continued Airworthiness to incorporate the 

CDCCLs as defined in Fokker 50/60 Fuel 

Airworthiness Limitations Items (ALI) and 

Critical Design Configuration Control 

Limitations (CDCCL) Report SE–671, Issue 2, 

dated December 1, 2006; or Fokker Service 

Bulletin SBF27–28–070, Revision 1, dated 

January 8, 2008; as applicable. 

(3) Where Fokker 50/60 Fuel Airworthiness 

Limitation Items (ALI) and Critical Design 

Configuration Control Limitations (CDCCL) 

Report SE–671, Issue 2, dated December 1, 

2006; or Fokker Service Bulletin SBF27–28– 

070, Revision 1, dated January 8, 2008; as 

applicable; allow for exceptional short-term 

extensions, an exception is acceptable to the 

FAA if it is approved by the appropriate 

principal inspector in the FAA Flight 

Standards Certificate Holding District Office. 

(4) After accomplishing the actions 

specified in paragraphs (f)(1) and (f)(2) of this 

AD, no alternative inspections, inspection 

intervals, or CDCCLs may be used, unless the 

inspections, inspection intervals, or CDCCLs 

are approved as an alternative method of 

compliance (AMOC) in accordance with the 

procedures specified in paragraph (g)(1) of 

this AD. 

(5) Actions done before April 16, 2008, in 

accordance with Fokker 50/60 Fuel 

Airworthiness Limitation Items (ALI) and 

Critical Design Configuration Control 

Limitations (CDCCL) Report SE–671, Issue 1, 

dated January 31, 2006; and Fokker Service 

Bulletin SBF27/28–070, dated June 30, 2006; 

are acceptable for compliance with the 

corresponding requirements of this AD. 

New Information: 

Explanation of CDCCL Requirements 

Note 2: Notwithstanding any other 

maintenance or operational requirements, 

components that have been identified as 

airworthy or installed on the affected 

airplanes before the revision of the ALS of 

the Instructions for Continued Airworthiness, 

as required by paragraphs (f)(1) and (f)(2) of 

this AD, do not need to be reworked in 

accordance with the CDCCLs. However, once 

the ALS has been revised, future 

maintenance actions on these components 

must be done in accordance with the 

CDCCLs. 

FAA AD Differences 

Note 3: This AD differs from the MCAI 

and/or service information as follows: No 

differences. 


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Federal Register / Vol. 74, No. 214 / Friday, November 6, 2009 / Rules and Regulations 57405 

Other FAA AD Provisions 

(g) The following provisions also apply to 

this AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, International 

Branch, ANM–116, FAA, has the authority to 

approve AMOCs for this AD, if requested 

using the procedures found in 14 CFR 39.19. 

Send information to ATTN: Tom Rodriguez, 

Aerospace Engineer, 1601 Lind Avenue, SW., 

Renton, Washington 98057–3356; telephone 

(425) 227–1137; fax (425) 227–1149. Before 

using any approved AMOC on any airplane 

to which the AMOC applies, notify your 

principal maintenance inspector (PMI) or 

principal avionics inspector (PAI), as 

appropriate, or lacking a principal inspector, 

your local Flight Standards District Office. 

The AMOC approval letter must specifically 

reference this AD. 

(2) Airworthy Product: For any requirement 

in this AD to obtain corrective actions from 

a manufacturer or other source, use these 

actions if they are FAA-approved. Corrective 

actions are considered FAA-approved if they 

are approved by the State of Design Authority 

(or their delegated agent). You are required 

to ensure the product is airworthy before it 

is returned to service. 

(3) Reporting Requirements: For any 

reporting requirement in this AD, under the 

provisions of the Paperwork Reduction Act 

(44 U.S.C. 3501 et seq.), the Office of 

Management and Budget (OMB) has 

approved the information collection 

requirements and has assigned OMB Control 

Number 2120–0056. 

Related Information 

(h) Refer to MCAI European Aviation 

Safety Agency Airworthiness Directive 2006– 

0207, dated July 12, 2006; EASA 

Airworthiness Directive 2006–0209, dated 

July 12, 2006 (corrected September 1, 2006); 

Fokker 50/60 Fuel Airworthiness Limitation 

Items (ALI) and Critical Design Configuration 

Control Limitations (CDCCL) Report SE–671, 

Issue 2, dated December 1, 2006; and Fokker 

Service Bulletin SBF27–28–070, Revision 1, 

dated January 8, 2008; for related 

information. 

Material Incorporated by Reference 

(i) You must use Fokker 50/60 Fuel 

Airworthiness Limitation Items (ALI) and 

Critical Design Configuration Control 

Limitations (CDCCL) Report SE–671, Issue 2, 

dated December 1, 2006; and Fokker Service 

Bulletin SBF27–28–070, Revision 1, dated 

January 8, 2008; as applicable; to do the 

actions required by this AD, unless the AD 

specifies otherwise. 

(1) The Director of the Federal Register 

previously approved the incorporation by 

reference of Fokker 50/60 Fuel Airworthiness 

Limitation Items (ALI) and Critical Design 

Configuration Control Limitations (CDCCL) 

Report SE–671, Issue 2, dated December 1, 

2006; and Fokker Service Bulletin SBF27– 

28–070, Revision 1, dated January 8, 2008; on 

April 16, 2008 (73 FR 13071, March 12, 

2008). 

(2) For service information identified in 

this AD, contact Fokker Services B.V., 

Technical Services Dept., P.O. Box 231, 2150 

AE Nieuw-Vennep, the Netherlands; 

telephone +31 (0)252–627–350; fax +31 

(0)252–627–211; e-mail technicalservices.

fokkerservices@stork.com; Internet http:// 

www.myfokkerfleet.com. 

(3) You may review copies of the service 

information at the FAA, Transport Airplane 

Directorate, 1601 Lind Avenue, SW., Renton, 

Washington. For information on the 

availability of this material at the FAA, call 

425–227–1221 or 425–227–1152. 

(4) You may also review copies of the 

service information that is incorporated by 

reference 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/

code_of_federal_regulations/ibr_locations.

html. 

Issued in Renton, Washington, on October 

26, 2009. 

Stephen P. Boyd, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. E9–26382 Filed 11–5–09; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2009–0910; Directorate 

Identifier 2009–NM–175–AD; Amendment 

39–16046; AD 2008–09–06 R1] 

RIN 2120–AA64 

Airworthiness Directives; Saab AB, 

Saab Aerosystems Model SAAB 340A 

(SAAB/SF340A) and SAAB 340B 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule; request for 

comments. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for the 

products listed above that would revise 

an existing AD. This AD results from 

mandatory continuing airworthiness 

information (MCAI) originated 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: 

Subsequent to accidents involving Fuel 

Tank System explosions in flight * * * and 

on ground, * * * Special Federal Aviation 

Regulation 88 (SFAR88) * * * required a 

safety review of the aircraft Fuel Tank 

System * * *. 

* * * * * 

Fuel Airworthiness Limitations are items 

arising from a systems safety analysis that 

have been shown to have failure mode(s) 

associated with an ‘unsafe condition’ * * *. 

These are identified in Failure Conditions for 

which an unacceptable probability of ignition 

risk could exist if specific tasks and/or 

practices are not performed in accordance 

with the manufacturers’ requirements. 

This AD requires actions that are 

intended to address the unsafe 

condition described in the MCAI. 

DATES: This AD becomes effective 

November 23, 2009. 

On June 2, 2008 (73 FR 22789, April 

28, 2008), the Director of the Federal 

Register approved the incorporation by 

reference of a certain publication listed 

in the AD. 

We must receive comments on this 

AD by December 21, 2009. 

ADDRESSES: You may send comments by 

any of the following methods: 

• Federal eRulemaking Portal: Go to 

http://www.regulations.gov. Follow the 

instructions for submitting comments. 

• Fax: (202) 493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue, SE., 

Washington, DC 20590. 

• Hand Delivery: U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–40, 1200 New Jersey Avenue, SE., 

Washington, DC, between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

For service information identified in 

this AD, contact Saab Aircraft AB, 

SAAB Aerosystems, SE 581 88, 

Linko ̈ping, Sweden; telephone +46 13 

18 5591; fax +46 13 18 4874; e-mail 

saab2000.techsupport@saabgroup.com; 

Internet http://www.saabgroup.com. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http:// 

www.regulations.gov; or in person at the 

Docket Operations office between 9 a.m. 

and 5 p.m., Monday through Friday, 

except Federal holidays. The AD docket 

contains this AD, the regulatory 

evaluation, any comments received, and 

other information. The street address for 

the Docket Operations office (telephone 

(800) 647–5527) is in the ADDRESSES

section. Comments will be available in 

the AD docket shortly after receipt. 

FOR FURTHER INFORMATION CONTACT: 

Shahram Daneshmandi, Aerospace 

Engineer, International Branch, ANM– 

116, Transport Airplane Directorate, 

FAA, 1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone 

(425) 227–1112; fax (425) 227–1149. 

SUPPLEMENTARY INFORMATION: 

Discussion 

On April 15, 2008, we issued AD 

2008–09–06, Amendment 39–15487 (73 


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