[Federal Register Volume 83, Number 227 (Monday, November 26, 2018)]
[Proposed Rules]
[Pages 60374-60376]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2018-25495]



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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2018-0964; Product Identifier 2018-NM-127-AD]
RIN 2120-AA64


Airworthiness Directives; Saab AB, Saab Aeronautics (Formerly 
Known as Saab AB, Saab Aerosystems) Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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SUMMARY: We propose to adopt a new airworthiness directive (AD) for all 
Saab AB, Saab Aeronautics Model SAAB 2000 airplanes. This proposed AD 
was prompted by reports that certain fuel probes indicated misleading 
fuel quantities on the engine indicating and crew alerting system 
(EICAS). This proposed AD would require a functional check of certain 
fuel probes, and replacement with a serviceable part if necessary. We 
are proposing this AD to address the unsafe condition on these 
products.

DATES: We must receive comments on this proposed AD by January 10, 
2019.

ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, 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: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    For service information identified in this NPRM, contact Saab AB, 
Saab Aeronautics, SE-581 88, Link[ouml]ping, Sweden; telephone +46 13 
18 5591; fax +46 13 18 4874; email [email protected]; 
internet http://www.saabgroup.com. You may view this service 
information at the FAA, Transport Standards Branch, 2200 South 216th 
St., Des Moines, WA. For information on the availability of this 
material at the FAA, call 206-231-3195.

Examining the AD Docket

    You may examine the AD docket on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2018-
0964; or in person at Docket Operations between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays. The AD docket contains 
this NPRM, the regulatory evaluation, any comments received, and other 
information. The street address for Docket Operations (phone: 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 Section, Transport Standards Branch, FAA, 2200 
South 216th St., Des Moines, WA 98198; telephone and fax 206-231-3220.

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposal. Send your comments to an address listed 
under the ADDRESSES section. Include ``Docket No. FAA-2018-0964; 
Product Identifier 2018-NM-127-AD'' at the beginning of your comments. 
We specifically invite comments on the overall regulatory, economic, 
environmental, and energy aspects of this NPRM. We will consider all 
comments received by the closing date and may amend this NPRM 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 NPRM.

Discussion

    The European Aviation Safety Agency (EASA), which is the Technical 
Agent for the Member States of the European Union, has issued EASA 
Airworthiness Directive 2018-0187, dated August 29, 2018 (referred to 
after this as the Mandatory Continuing Airworthiness Information, or 
``the MCAI''), to correct an unsafe condition for all Saab AB, Saab 
Aeronautics Model SAAB 2000 airplanes. The MCAI states:

    Occurrences were reported that certain fuel probes, installed on 
SAAB 2000 aeroplanes, indicated misleading fuel quantities on the 
engine indicating and crew alerting system (EICAS). The 
investigation results suggest that this may be an ageing phenomenon, 
leading to deteriorated capacity of the fuel probes.
    This condition, if not detected and corrected, could lead to 
incorrect fuel reading, possibly resulting in fuel starvation and 
uncommanded engine in-flight shut-down, with consequent reduced 
control of the aeroplane.
    To address this potential unsafe condition, SAAB issued the SB 
[service bulletin] to provide instructions for a functional check.
    For the reason described above, this [EASA] AD requires a one-
time functional check of the fuel quantity system and the fuel low 
level EICAS warnings to determine whether any affected parts are out 
of tolerance and, depending on findings, replacement of those 
affected parts.

    You may examine the MCAI in the AD docket on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2018-
0964.

Related Service Information Under 1 CFR Part 51

    Saab AB, Saab Aeronautics has issued Service Bulletin 2000-28-028, 
dated April 19, 2018. This service information describes procedures for 
a functional check of the fuel indicator gauging accuracy and the low 
level warning, and for replacing the affected part with a serviceable 
part if necessary. This service information is reasonably available 
because the interested parties have access to it through their normal 
course of business or by the means identified in the ADDRESSES section.

FAA's Determination

    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 the State of Design Authority, we have 
been notified of the unsafe condition described in the MCAI and service 
information referenced above. We are proposing this AD because we 
evaluated all the relevant information and determined the unsafe 
condition described previously is likely to exist or develop on other 
products of the same type design.

Proposed Requirements of This NPRM

    This proposed AD would require accomplishing the actions specified 
in the service information described previously.

Difference Between MCAI and Proposed AD

    The MCAI requires corrective actions if a functional check reveals 
that any fuel indicator value is out of tolerance, according to the 
limits and conditions specified in the Master Minimum Equipment List 
(MMEL). This proposed AD does not refer to the MMEL because operators 
are required by 14 CFR part 91 to have a Minimum Equipment List (MEL) 
to operate with inoperable equipment, and the acceptable limits and 
conditions for the fuel indicator values cannot be in an MEL without

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first being part of the MMEL. Paragraph (i) of this proposed AD 
therefore states that the corrective actions that would be required 
based on the results of the functional check would depend on the limits 
and conditions specified in the operator's MEL.

Costs of Compliance

    We estimate that this proposed AD affects 8 airplanes of U.S. 
registry. We estimate the following costs to comply with this proposed 
AD:

                                      Estimated Costs for Required Actions
----------------------------------------------------------------------------------------------------------------
                                                                                    Cost per       Cost on U.S.
                          Labor cost                              Parts cost        product         operators
----------------------------------------------------------------------------------------------------------------
8 work-hours x $85 per hour = $680...........................              $0             $680           $5,440
----------------------------------------------------------------------------------------------------------------

    We estimate the following costs to do any necessary on-condition 
action that would be required based on the results of any required 
actions. We have no way of determining the number of aircraft that 
might need this on-condition action:

                 Estimated Costs of On-Condition Action
------------------------------------------------------------------------
                                                             Cost per
              Labor cost                   Parts cost        product
------------------------------------------------------------------------
2 work-hour x $85 per hour = $170.....          $6,295           $6,465
------------------------------------------------------------------------

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.
    This proposed AD is issued in accordance with authority delegated 
by the Executive Director, Aircraft Certification Service, as 
authorized by FAA Order 8000.51C. In accordance with that order, 
issuance of ADs is normally a function of the Compliance and 
Airworthiness Division, but during this transition period, the 
Executive Director has delegated the authority to issue ADs applicable 
to transport category airplanes to the Director of the System Oversight 
Division.

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.
    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);
    3. Will not affect intrastate aviation in Alaska; and
    4. 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.

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

0
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]

0
2. The FAA amends Sec.  39.13 by adding the following new airworthiness 
directive (AD):

Saab AB, Saab Aeronautics (Formerly Known as Saab AB, Saab 
Aerosystems): Docket No. FAA-2018-0964; Product Identifier 2018-NM-
127-AD.

(a) Comments Due Date

    We must receive comments by January 10, 2019.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to all Saab AB, Saab Aeronautics (formerly known 
as Saab AB, Saab Aerosystems) Model SAAB 2000 airplanes, 
certificated in any category.

(d) Subject

    Air Transport Association (ATA) of America Code 28, Fuel.

(e) Reason

    This AD was prompted by reports that certain fuel probes 
indicated misleading fuel quantities on the engine indicating and 
crew alerting system (EICAS). We are issuing this AD to address 
deteriorated capacity of the fuel probes, which could lead to 
incorrect fuel reading, possibly resulting in fuel starvation and 
uncommanded engine in-flight shutdown, and consequent reduced 
control of the airplane.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Definitions

    (1) An affected part is a fuel probe having part number (P/N) 
20136-0101, P/N 20136-0102, P/N 20136-0103, P/N 20136-0104, P/N 
20136-0105, or P/N 20136-0106; with fuel low level sensors having P/
N 20137-0101.
    (2) A serviceable part is an affected part that has accumulated 
less than 1,500 total flight hours or has reached 12 months since 
first installation on an airplane.

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(h) Functional Check

    Within 1,500 flight hours or 12 months after the effective date 
of this AD, whichever occurs first, accomplish a functional check of 
the fuel indicator gauging accuracy and the low level warning, in 
accordance with the Accomplishment Instructions of Saab Service 
Bulletin 2000-28-028, dated April 19, 2018.

(i) Corrective Action

    If the functional check required by paragraph (h) of this AD is 
found to be out of tolerance, within the limits and under the 
applicable conditions, as specified in the operator's Minimum 
Equipment List, replace the affected part with a serviceable part, 
in accordance with the Accomplishment Instructions of Saab Service 
Bulletin 2000-28-028, dated April 19, 2018.

(j) Parts Installation Limitation

    As of the effective date of this AD, no person may install, on 
any airplane, an affected part, unless it is a serviceable part, as 
defined in paragraph (g)(2) of this AD.

(k) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, 
International Section, Transport Standards Branch, FAA, has the 
authority to approve AMOCs for this AD, if requested using the 
procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, 
send your request to your principal inspector or local Flight 
Standards District Office, as appropriate. If sending information 
directly to the International Section, send it to the attention of 
the person identified in paragraph (l)(2) of this AD. Information 
may be emailed to: [email protected]. Before using any 
approved AMOC, notify your appropriate principal inspector, or 
lacking a principal inspector, the manager of the local flight 
standards district office/certificate holding district office.
    (2) Contacting the Manufacturer: For any requirement in this AD 
to obtain corrective actions from a manufacturer, the action must be 
accomplished using a method approved by the Manager, International 
Section, Transport Standards Branch, FAA; or the European Aviation 
Safety Agency (EASA); or Saab AB, Saab Aeronautics's EASA Design 
Organization Approval (DOA). If approved by the DOA, the approval 
must include the DOA-authorized signature.

(l) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) EASA Airworthiness Directive 2018-0187, dated August 29, 
2018, for related information. This MCAI may be found in the AD 
docket on the internet at http://www.regulations.gov by searching 
for and locating Docket No. FAA-2018-0964.
    (2) For more information about this AD, contact Shahram 
Daneshmandi, Aerospace Engineer, International Section, Transport 
Standards Branch, FAA, 2200 South 216th St., Des Moines, WA 98198; 
telephone and fax 206-231-3220.
    (3) For service information identified in this AD, contact Saab 
AB, Saab Aeronautics, SE-581 88, Link[ouml]ping, Sweden; telephone 
+46 13 18 5591; fax +46 13 18 4874; email 
[email protected]; internet http://www.saabgroup.com. You may view this service information at the FAA, 
Transport Standards Branch, 2200 South 216th St., Des Moines, WA. 
For information on the availability of this material at the FAA, 
call 206-231-3195.

    Issued in Des Moines, Washington, on November 8, 2018.
Chris Spangenberg,
Acting Director, System Oversight Division, Aircraft Certification 
Service.
[FR Doc. 2018-25495 Filed 11-23-18; 8:45 am]
BILLING CODE 4910-13-P


