46334 Federal Register / Vol. 74, No. 173 / Wednesday, September 9, 2009 / Rules and Regulations 

this service information under 5 U.S.C. 

552(a) and 1 CFR part 51. 

(2) For service information identified in 

this AD, contact Boeing Commercial 

Airplanes, Attention: Data & Services 

Management, P.O. Box 3707, MC 2H–65, 

Seattle, Washington 98124–2207; telephone 

206–544–5000, extension 1; fax 206–766– 

5680; e-mail me.boecom@boeing.com; 

Internet https://www.myboeingfleet.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 August 

18, 2009. 

Stephen P. Boyd, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. E9–20838 Filed 9–8–09; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2009–0515; Directorate 

Identifier 2008–NM–071–AD; Amendment 

39–16007; AD 2009–18–11] 

RIN 2120–AA64 

Airworthiness Directives; Fokker 

Model F.28 Mark 0070 and 0100 Series 

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) 

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: 

Following a red illuminated ‘‘DOOR NOT 

LOCKED’’ status light indication on the door 

lock indication panel after lift off, the cabin 

crew operated the door lock handle. This 

resulted in inadvertent opening of the 

downward opening passenger door in flight. 

* * * 

After inspection, it was found that the false 

red light might be the result of an incorrect 

clearance between lever Part Number (P/N) 

A26997–003 and the Up-Limit Switch. If the 

Up-Limit Switch has an incorrect clearance, 

the combination with cabin differential 

pressure build-up after lift-off might result in 

a false steady illuminating red ‘‘DOOR NOT 

LOCKED’’ indication on the Door Indication 

Panel. * * * 

* * * * * 

The unsafe condition is inadvertent 

opening of the door lock handle in 

flight, which could result in rapid 

decompression of the airplane or 

ejection of a passenger or crewmember 

through the door. We are issuing this 

AD to require actions to correct the 

unsafe condition on these products. 

DATES: This AD becomes effective 

October 14, 2009. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of October 14, 2009. 

ADDRESSES: You may examine the AD 

docket on the Internet at http:// 

www.regulations.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. 

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 

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 June 9, 2009 (74 FR 27260). 

That NPRM proposed to correct an 

unsafe condition for the specified 

products. The MCAI states: 

Following a red illuminated ‘‘DOOR NOT 

LOCKED’’ status light indication on the door 

lock indication panel after lift off, the cabin 

crew operated the door lock handle. This 

resulted in inadvertent opening of the 

downward opening passenger door in flight. 

It appeared that the cabin crew was unaware 

of the content of Fokker 70/100 Service Letter 

(SL) 272. This SL informs not to operate the 

door lock handle after the aircraft has started 

to move or before it has come to a complete 

standstill. 

After inspection, it was found that the false 

red light might be the result of an incorrect 

clearance between lever Part Number (P/N) 

A26997–003 and the Up-Limit Switch. If the 

Up-Limit Switch has an incorrect clearance, 

the combination with cabin differential 

pressure build-up after lift-off might result in 

a false steady illuminating red ‘‘DOOR NOT 

LOCKED’’ indication on the Door Indication 

Panel. The original Fokker Service Bulletin 

SBF100–52–044 and the associated Aircraft 

Maintenance Manual (AMM) task mentioned 

a clearance of 1,3 mm ± 0,3 mm. Later, based 

on a trial, an improved clearance of 0,3 mm 

± 0,2 mm was introduced. Both documents 

have been revised for that reason. Later 

production serial number aircraft with 

downward opening passenger doors had the 

correct clearance introduced before delivery, 

but no action was taken to inspect and adjust 

the clearance on previously delivered or 

modified (per SBF100–52–044) serial 

numbers. 

Since an unsafe condition has been 

identified that is likely to exist or develop on 

other aircraft of the same type design, this 

[EASA] Airworthiness Directive (AD) 

requires two actions: 

—The installation of a warning placard near 

the status lights of the door lock indication 

panel, instructing the cabin crew not to 

operate the door handle during flight and 

to inform the flight crew of the ‘‘DOOR 

NOT LOCKED’’ indication; and 

—A one-time inspection of the clearance 

between lever P/N A26997–003 and the 

Up-Limit Switch. If this clearance deviates 

from the limits given in AMM task 52–71– 

01–400–814–A, which is 0,3 mm ± 0,2 mm 

(0.0118 inch ± 0.0079 inch), corrective 

actions are required. 

The unsafe condition is inadvertent 

opening of the door lock handle in 

flight, which could result in rapid 

decompression of the airplane or 

ejection of a passenger or crewmember 

through the door. The corrective action 

for improper clearance is adjusting the 

clearance between the lever and the uplimit switch. You may obtain further 

information by examining the MCAI in 

the AD docket. 

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. 

Differences Between This 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. 


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Federal Register / Vol. 74, No. 173 / Wednesday, September 9, 2009 / Rules and Regulations 46335 

We might also have required different 

actions in this AD from those in the 

MCAI in order to follow our FAA 

policies. Any such differences are 

highlighted in a Note within the AD. 

Costs of Compliance 

We estimate that this AD will affect 

10 products of U.S. registry. We also 

estimate that it will take about 4 workhours per product to comply with the 

basic requirements of this AD. The 

average labor rate is $80 per work-hour. 

Required parts will cost about $20 per 

product. Where the service information 

lists required parts costs that are 

covered under warranty, we have 

assumed that there will be no charge for 

these parts. As we do not control 

warranty coverage for affected parties, 

some parties may incur costs higher 

than estimated here. Based on these 

figures, we estimate the cost of this AD 

to the U.S. operators to be $3,400, or 

$340 per product. 

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. 

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 the NPRM, 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. 

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 adding 

the following new AD: 

2009–18–11 Fokker Services B.V.: 

Amendment 39–16007. Docket No. 

FAA–2009–0515; Directorate Identifier 

2008–NM–071–AD. 

Effective Date 

(a) This airworthiness directive (AD) 

becomes effective October 14, 2009. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to Fokker Model F.28 

Mark 0070 and 0100 series airplanes, 

certificated in any category, equipped with a 

downward-opening ‘‘airstair’’ type passenger 

door. 

Subject 

(d) Air Transport Association (ATA) of 

America Codes 11 and 52: Placards and 

Markings, and Doors, respectively. 

Reason 

(e) The mandatory continuing 

airworthiness information (MCAI) states: 

‘‘Following a red illuminated ‘‘DOOR NOT 

LOCKED’’ status light indication on the door 

lock indication panel after lift off, the cabin 

crew operated the door lock handle. This 

resulted in inadvertent opening of the 

downward opening passenger door in flight. 

It appeared that the cabin crew was unaware 

of the content of Fokker 70/100 Service Letter 

(SL) 272. This SL informs not to operate the 

door lock handle after the aircraft has started 

to move or before it has come to a complete 

standstill. 

‘‘After inspection, it was found that the 

false red light might be the result of an 

incorrect clearance between lever Part 

Number (P/N) A26997–003 and the Up-Limit 

Switch. If the Up-Limit Switch has an 

incorrect clearance, the combination with 

cabin differential pressure build-up after liftoff might result in a false steady illuminating 

red ‘‘DOOR NOT LOCKED’’ indication on the 

Door Indication Panel. The original Fokker 

Service Bulletin SBF100–52–044 and the 

associated Aircraft Maintenance Manual 

(AMM) task mentioned a clearance of 1,3 mm 

± 0,3 mm. Later, based on a trial, an 

improved clearance of 0,3 mm ± 0,2 mm was 

introduced. Both documents have been 

revised for that reason. Later production 

serial number aircraft with downward 

opening passenger doors had the correct 

clearance introduced before delivery, but no 

action was taken to inspect and adjust the 

clearance on previously delivered or 

modified (per SBF100–52–044) serial 

numbers. 

‘‘Since an unsafe condition has been 

identified that is likely to exist or develop on 

other aircraft of the same type design, this 

[EASA] Airworthiness Directive (AD) 

requires two actions: 

—The installation of a warning placard near 

the status lights of the door lock indication 

panel, instructing the cabin crew not to 

operate the door handle during flight and 

to inform the flight crew of the ‘‘DOOR 

NOT LOCKED’’ indication; and 

—A one-time inspection of the clearance 

between lever P/N A26997–003 and the 

Up-Limit Switch. If this clearance deviates 

from the limits given in AMM task 52–71– 

01–400–814–A, which is 0,3 mm ± 0,2 mm 

(0.0118 inch ± 0.0079 inch), corrective 

actions are required.’’ 

The unsafe condition is inadvertent 

opening of the door lock handle in flight, 

which could result in rapid decompression of 

the airplane or ejection of a passenger or 

crewmember through the door. The 

corrective action for improper clearance is 

adjusting the clearance between the lever and 

the up-limit switch. 

Actions and Compliance 

(f) Unless already done, do the following 

actions: 

(1) Within 500 flight cycles or 4 months 

after the effective date of this AD, whichever 

occurs first, install a new warning placard 

near the status lights of the panel of the door 

lock indication, in accordance with the 

Accomplishment Instructions of Fokker 

Service Bulletin SBF100–11–025, Revision 1, 

dated December 13, 2007. 

(2) Within 4,000 flight cycles after the 

effective date of this AD, do a one-time 


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46336 Federal Register / Vol. 74, No. 173 / Wednesday, September 9, 2009 / Rules and Regulations 

inspection of the clearance between lever P/ 

N A26997–003 and the up-limit switch, in 

accordance with the Accomplishment 

Instructions of Fokker Service Bulletin 

SBF100–52–086, dated November 1, 2007. 

(3) If any clearance is found outside the 

range defined in Fokker Service Bulletin 

SBF100–52–086, dated November 1, 2007, 

during the inspection required by paragraph 

(f)(2) of this AD, before further flight, correct 

the clearance in accordance with the 

Accomplishment Instructions of Fokker 

Service Bulletin SBF100–52–086, dated 

November 1, 2007. 

(4) If done before the effective date of this 

AD, installing the warning placard near the 

status lights of the panel of the door lock 

indication, in accordance with Fokker 

Service Bulletin SBF100–11–025, dated 

November 1, 2007, is acceptable for 

compliance with the requirements of 

paragraph (f)(1) of this AD. 

(5) Modifying the airplane in accordance 

with Fokker Service Bulletin SBF100–52– 

044, Revision 1, dated November 1, 2007, 

terminates the requirements of paragraph 

(f)(2) of this AD. 

FAA AD Differences 

Note 1: This AD differs from the MCAI 

and/or service information as follows: 

Note 1 of the ‘‘Compliance’’ section of 

European Aviation Safety Agency (EASA) 

Airworthiness Directive 2008–0020, dated 

January 28, 2008, states that any airplane that 

has not yet been modified in accordance with 

Fokker Service Bulletin SBF100–52–069, 

dated December 3, 2001, must be modified 

prior to or concurrently with paragraph (f)(1) 

of this AD. However, all U.S. airplanes have 

met this requirement with the issuance of AD 

2006–03–07, amendment 39–14471; 

therefore, modification in accordance with 

Fokker Service Bulletin SBF100–52–069, 

dated December 3, 2001, is not applicable. 

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, Transport Airplane 

Directorate, 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, International Branch, 

ANM–116, Transport Airplane Directorate, 

FAA, 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. 

(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 FAAapproved if they are approved by the State 

of Design Authority (or their delegated 

agent). You are required to assure 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, 

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 EASA Airworthiness 

Directive 2008–0020, dated January 28, 2008; 

Fokker Service Bulletin SBF100–11–025, 

Revision 1, dated December 13, 2007; and 

Fokker Service Bulletin SBF100–52–086, 

dated November 1, 2007; for related 

information. 

Material Incorporated by Reference 

(i) You must use Fokker Service Bulletin 

SBF100–11–025, Revision 1, dated December 

13, 2007; and Fokker Service Bulletin 

SBF100–52–086, dated November 1, 2007; as 

applicable; to do the actions required by this 

AD, unless the AD specifies otherwise. If you 

accomplish the optional modification 

specified in paragraph (f)(5) of this AD, you 

must use Fokker Service Bulletin SBF100– 

52–044, Revision 1, dated November 1, 2007, 

to perform that modification, unless the AD 

specifies otherwise. 

(1) The Director of the Federal Register 

approved the incorporation by reference of 

this service information under 5 U.S.C. 

552(a) and 1 CFR part 51. 

(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 August 

18, 2009. 

Stephen P. Boyd, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. E9–20834 Filed 9–8–09; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2009–0786; Directorate 

Identifier 2009–NM–145–AD; Amendment 

39–16014; AD 2009–18–18] 

RIN 2120–AA64 

Airworthiness Directives; ATR Model 

ATR42 and ATR72 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. 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: 

A recent event occurred during which the 

LH [left-hand] forward side glass window of 

an ATR 72–212 aeroplane blew out while 

performing a ground pressure test. 

The investigation revealed some anomalies 

on the forward side window at the level of 

the Z-bar on the windows external side and 

at the level of the inner retainer on the 

windows internal side. These anomalies are 

considered as precursors of this failure. 

* * * * * 

An in-flight loss of a forward side window 

could have catastrophic consequences for the 

aeroplane and/or cause injuries to people on 

the ground. The loss of the forward side 

window while the aeroplane is on the ground 

with a positive differential cabin pressure 

could also cause injuries to people inside or 

around the aeroplane. 

* * * * * 

This AD requires actions that are 

intended to address the unsafe 

condition described in the MCAI. 

DATES: This AD becomes effective 

September 24, 2009. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in the AD 

as of September 24, 2009. 

We must receive comments on this 

AD by October 9, 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 


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