
[Federal Register: March 30, 2009 (Volume 74, Number 59)]
[Proposed Rules]               
[Page 14097-14099]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr30mr09-19]                         

=======================================================================
-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2009-0284; Directorate Identifier 2009-CE-016-AD]
RIN 2120-AA64

 
Airworthiness Directives; DORNIER LUFTFAHRT GmbH Models Dornier 
228-100, Dornier 228-101, Dornier 228-200, Dornier 228-201, Dornier 
228-202, and Dornier 228-212 Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Notice of proposed rulemaking (NPRM).

-----------------------------------------------------------------------

SUMMARY: We propose to adopt a new airworthiness directive (AD) for the 
products listed above that would supersede an existing AD. This 
proposed 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:

    The manufacturer reported findings of missing primer on the 
internal of the elevator and rudder of aircraft S/N 8200. The 
aircraft S/N 8200 was with RUAG for maintenance purposes. 
Investigation performed by RUAG showed that the paint removal 
procedure for the rudder and elevator was changed from a paint 
stripping with brush and scraper to a procedure where the parts were 
submerged in a tank filled with hot liquid stripper. The stripper is 
called TURCO 5669 from Henkel Surface Technologies. The stripping 
process is described in the Technical Process Bulletin No. 238799 
dated 09/01/1999. This paint stripping process change was not 
communicated to and not approved by the TC-Holder.

The proposed AD would require actions that are intended to address the 
unsafe condition described in the MCAI.

DATES: We must receive comments on this proposed AD by April 29, 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

[[Page 14098]]

W12-140, 1200 New Jersey Avenue, SE., Washington, DC 20590, between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.

Examining the AD Docket

    You may examine the AD docket on the Internet at http://
www.regulations.gov; or in person at the Docket Management Facility 
between 9 a.m. and 5 p.m., Monday through Friday, except Federal 
holidays. The AD docket contains this proposed AD, the regulatory 
evaluation, any comments received, and other information. The street 
address for the Docket 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: Greg Davison, Aerospace Engineer, FAA, 
Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 
64106; telephone: (816) 329-4130; fax: (816) 329-4090.

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposed AD. Send your comments to an address 
listed under the ADDRESSES section. Include ``Docket No. FAA-2009-0284; 
Directorate Identifier 2009-CE-016-AD'' at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of this proposed AD. We 
will consider all comments received by the closing date and may amend 
this proposed AD because of those comments.
    We will post all comments we receive, without change, to http://
regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this proposed AD.

Discussion

    On April 4, 2008, we issued AD 2008-08-15, Amendment 39-15467 (73 
FR 21220; April 21, 2008). That AD required actions intended to address 
an unsafe condition on the products listed above.
    Since we issued AD 2008-08-15, we have received new MCAI that 
changes the applicability and accomplishment instructions.
    The Luftfahrt-Bundesamt (LBA), which is the airworthiness authority 
for Germany, has issued AD D-2007-350R1, dated January 30, 2009 
(referred to after this as ``the MCAI''), to correct an unsafe 
condition for the specified products. The MCAI states:

    The manufacturer reported findings of missing primer on the 
internal of the elevator and rudder of aircraft S/N 8200. The 
aircraft S/N 8200 was with RUAG for maintenance purposes. 
Investigation performed by RUAG showed that the paint removal 
procedure for the rudder and elevator was changed from a paint 
stripping with brush and scraper to a procedure where the parts were 
submerged in a tank filled with hot liquid stripper. The stripper is 
called TURCO 5669 from Henkel Surface Technologies. The stripping 
process is described in the Technical Process Bulletin No. 238799 
dated 09/01/1999. This paint stripping process change was not 
communicated to and not approved by the TC-Holder.

The MCAI requires a detailed visual inspection of the inner structure 
of the rudder and elevator for signs of corrosion, de-bonded primer 
(yellow-green), and any deviation of surface protection. If the 
inspection results show corrosion beyond the acceptable level or areas 
with de-bonded primer, the inspection results have to be reported to 
RUAG Aerospace Services GmbH for further decisions. If necessary, 
repair the affected parts in accordance with the applicable repair 
instruction obtained from RUAG Aerospace Services GmbH. You may obtain 
further information by examining the MCAI in the AD docket.

Relevant Service Information

    RUAG Aerospace Defence Technology Dornier 228 Service Bulletin No. 
SB-228-270, Rev. No. 1, dated November 28, 2008. The actions described 
in this service information are intended to correct the unsafe 
condition identified in the MCAI.

FAA's Determination and Requirements of the Proposed AD

    This product has been approved by the aviation authority of another 
country, and is approved for operation in the United States. Pursuant 
to our bilateral agreement with this State of Design Authority, they 
have notified us of the unsafe condition described in the MCAI and 
service information referenced above. We are proposing this AD because 
we evaluated all information and determined the unsafe condition exists 
and is likely to exist or develop on other products of the same type 
design.

Differences Between This Proposed 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 proposed 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 proposed AD.

Costs of Compliance

    Based on the service information, we estimate that this proposed AD 
will affect 17 products of U.S. registry. We also estimate that it 
would take about 3 work-hours per product to comply with the basic 
requirements of this proposed AD. The average labor rate is $80 per 
work-hour.
    Based on these figures, we estimate the cost of the proposed AD on 
U.S. operators to be $4,080, or $240 per product.
    We have no way of determining the number of airplanes or the 
associated costs of any follow-on repairs or replacements that might be 
required by this proposed 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 proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would 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.

[[Page 14099]]

    For the reasons discussed above, I certify this proposed 
regulation:
    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 proposed 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.

The Proposed Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA proposes to amend 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.


Sec.  39.13  [Amended]

    2. The FAA amends Sec.  39.13 by removing Amendment 39-15467 (73 FR 
21220; April 21, 2008), and adding the following new AD:

DORNIER LUFTFAHRT GmbH: Docket No. FAA-2009-0284; Directorate 
Identifier 2009-CE-016-AD.

Comments Due Date

    (a) We must receive comments by April 29, 2009.

Affected ADs

    (b) This AD supersedes AD 2008-08-15, Amendment 39-15467 (73 FR 
21220; April 21, 2008).

Applicability

    (c) This AD applies to Dornier 228-100, Dornier 228-101, Dornier 
228-200, Dornier 228-201, Dornier 228-202, and Dornier 228-212 
airplanes, all serial numbers, that:
    (1) Are certificated in any category; and
    (2) Have had the rudder and/or elevator replaced or repaired at 
Fairchild Dornier or RUAG between the year 2000 and 2005. The 
concerned rudder and elevator part numbers and serial numbers are 
listed on page 7 of RUAG Aerospace Defence Technology Dornier 228 
Service Bulletin No. SB-228-270, Rev. No. 1, dated November 28, 
2008.

Subject

    (d) Air Transport Association of America (ATA) Code 51: Standard 
Practices/Structures.

Reason

    (e) The mandatory continuing airworthiness information (MCAI) 
states:
    The manufacturer reported findings of missing primer on the 
internal of the elevator and rudder of aircraft S/N 8200. The 
aircraft S/N 8200 was with RUAG for maintenance purposes. 
Investigation performed by RUAG showed that the paint removal 
procedure for the rudder and elevator was changed from a paint 
stripping with brush and scraper to a procedure where the parts were 
submerged in a tank filled with hot liquid stripper. The stripper is 
called TURCO 5669 from Henkel Surface Technologies. The stripping 
process is described in the Technical Process Bulletin No. 238799 
dated 09/01/1999. This paint stripping process change was not 
communicated to and not approved by the TC-Holder.

Corrosion damage can occur through insufficient surface protection. 
Consequently, the MCAI requires a detailed visual inspection of the 
inner structure of the rudder and elevator for signs of corrosion, 
de-bonded primer (yellow-green), and any deviation of surface 
protection. If the inspection results show corrosion beyond the 
acceptable level or areas with de-bonded primer, the inspection 
results have to be reported to RUAG Aerospace Services GmbH for 
further decisions. If necessary, repair the affected parts in 
accordance with the applicable repair instruction obtained from RUAG 
Aerospace Services GmbH.

Actions and Compliance

    (f) Unless already done, do the following actions:
    (1) Within 2 months after the effective date of this AD, do a 
detailed visual inspection on the inner structure of the rudder and 
elevator for signs of corrosion, debonded primer (yellow-green), and 
any other deviation of surface protection following RUAG Aerospace 
Defence Technology Dornier 228 Service Bulletin No. SB-228-270, Rev. 
No. 1, dated November 28, 2008.
    (2) If you find corrosion or areas with debonded primer as a 
result of the inspection required by paragraph (f)(1) of this AD, 
before further flight, do the following:
    (i) Report the inspection results to RUAG Aerospace Services 
GmbH, Dornier 228 Customer Support, P.O. Box 1253, 82231 Wessling, 
Federal Republic of Germany, telephone: +49 (0) 8153-30-2280; fax: 
+49 (0) 8153-30-3030 and request FAA-approved repair instructions 
following RUAG Aerospace Defence Technology Dornier 228 Service 
Bulletin No. SB-228-270, Rev. No. 1, dated November 28, 2008.
    (ii) Repair corrosion following FAA-approved repair instructions 
obtained from RUAG Aerospace Services GmbH.

FAA AD Differences

    Note: This AD differs from the MCAI and/or service information 
as follows: No differences.

Other FAA AD Provisions

    (g) The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, 
Standards Office, 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: Greg Davison, Aerospace Engineer, FAA, Small 
Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 
64106; telephone: (816) 329-4130; fax: (816) 329-4090. 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.
    (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 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 (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 German AD D-2007-350R1, dated January 30, 
2009; and RUAG Aerospace Defence Technology Dornier 228 Service 
Bulletin No. SB-228-270, Rev. No. 1, dated November 28, 2008, for 
related information.

    Issued in Kansas City, Missouri, on March 24, 2009.
John Colomy,
Acting Manager, Small Airplane Directorate, Aircraft Certification 
Service.
 [FR Doc. E9-6984 Filed 3-27-09; 8:45 am]

BILLING CODE 4910-13-P
