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2021-09-02 PIPER AIRCRAFT, INC.: Amendment 39-21515; Docket No. FAA-2021-0310; Project Identifier AD-2021-00269-A.
(a) EFFECTIVE DATE

    This airworthiness directive (AD) is effective April 16, 2021.

(b) AFFECTED ADS

    This  AD  replaces AD  2021-04-07,  Amendment 39-21428  (86  FR 10770,
    February 23, 2021).

(c) APPLICABILITY

    This  AD applies  to the  following Piper  Aircraft, Inc.,  airplanes,
    certificated in any category:

(1) Model PA-46-350P  (Malibu Mirage)  airplanes,  serial  numbers  (S/Ns)
    4622041, 4636041, 4636142, 4636143, 4636313, 4636341, and 4636379;

(2) Model PA-46-500TP (Malibu Meridian) airplanes,  S/Ns 4697141, 4697161,
    4697086, and 4697020; and

(3) Models PA-46-350P (Malibu Mirage),  PA-46R-350T  (Malibu Matrix),  and
    PA-46-500TP (Malibu  Meridian) airplanes,  all serial  numbers, if the
    left wing has been replaced  with a serviceable (more than  zero hours
    time-in-service) wing.

(d) SUBJECT

    Joint Aircraft System Component (JASC) Code 3700, VACUUM SYSTEM.

(e) UNSAFE CONDITION

    This  AD  was prompted  by  nonconforming stall  warning  heat control
    systems,  utilizing  a left  wing  assembly without  the  proper stall
    warning modification  design. Without  the proper  stall warning  heat
    control modification kit during flights into icing conditions with the
    landing gear down, ice can form on the stall vane, which may result in
    failure of the  stall warning system.  The FAA is  issuing this AD  to
    identify and correct nonconforming stall warning heat control systems.
    The unsafe  condition, if  not addressed,  could result  in the  pilot
    being unaware of an approaching stall situation.

(f) COMPLIANCE

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

(g) ACTIONS

(1) Within 100 hours time-in-service  (TIS)  after  the  effective date of
    this AD  or within  12 months  after the  effective date  of this  AD,
    whichever occurs first, inspect the configuration of the stall warning
    heat  control  system and,  if  required, install  stall  warning heat
    control modification  kit part  number (P/N)  88452-002 before further
    flight in accordance with steps 2  and 3 of the Instructions in  Piper
    Aircraft, Inc., Service Letter No. 1261, dated July 19, 2019.

(2) As of the effective date of this AD,  do  not  install  a  wing on any
    Model PA-46-350P (Malibu Mirage),  PA-46R-350T (Malibu Matrix), or  PA
    -46-500TP (Malibu Meridian) airplane  unless you have determined  that
    the wing has the correct stall warning heat control system as required
    by paragraph (g)(1) of this AD.

(h) SPECIAL FLIGHT PERMIT

    A special flight  permit may be  issued to operate  the airplane to  a
    location  where  the  requirements  of  this  AD  can  be accomplished
    provided flight into known icing conditions is prohibited.

(i) ALTERNATIVE METHODS OF COMPLIANCE (AMOCS)

(1) The  Manager,  Atlanta ACO 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 manager  of the
    certification  office,  send  it  to  the  attention  of  the   person
    identified in Related Information.

(2) Before using any approved AMOC,  notify your appropriate principal in-
    spector, or lacking  a principal inspector,  the manager of  the local
    flight standards district office/certificate holding district office.

(3) An AMOC  that provides  an  acceptable level of safety may be used for
    any repair, modification, or alteration  required by this AD if  it is
    approved   by   Piper   Aircraft,   Inc.   Organization    Designation
    Authorization (ODA) that has  been authorized by the  Manager, Atlanta
    ACO Branch to make those findings. To be approved, the repair  method,
    modification  deviation,  or   alteration  deviation  must   meet  the
    certification  basis   of  the   airplane,  and   the  approval   must
    specifically refer to this AD.

(4) AMOCs approved for AD 2021-04-07  (86 FR 10770, February 23, 2021) are
    approved as AMOCs for the corresponding provisions of this AD.

(5) For  service  information  that  contains  steps  that  are labeled as
    Required for Compliance (RC), the following provisions apply.

(i) The steps labeled as RC,  including substeps under  an RC step and any
    figures identified in an RC step, must be done to comply with the  AD.
    An AMOC is required for any deviations to RC steps, including substeps
    and identified figures.

(ii) Steps not labeled as RC  may be deviated  from using accepted methods
     in accordance with the  operator’s maintenance or inspection  program
     without  obtaining  approval  of  an  AMOC,  provided  the  RC steps,
     including  substeps  and identified  figures,  can still  be  done as
     specified,  and  the  airplane  can  be  put  back  in  an  airworthy
     condition.

(j) RELATED INFORMATION

    For more information about this AD, contact John Lee, Aviation  Safety
    Engineer, Atlanta ACO Branch, FAA, 1701 Columbia Avenue, College Park,
    GA 30337; phone: (404) 474-5568; email: john.lee@faa.gov.

(k) MATERIAL INCORPORATED BY REFERENCE

(1) The Director of the Federal Register  approved  the  incorporation  by
    reference (IBR) of  the service information  listed in this  paragraph
    under 5 U.S.C. 552(a) and 1 CFR part 51.

(2) You must use  this service information as applicable to do the actions
    required by this AD, unless the AD specifies otherwise.

(3) The following service information was approved  for  IBR  on March 30,
    2021 (86 FR 10770, February 23, 2021).

(i) Piper Service Letter No. 1261, dated July 19, 2019.

(ii) [Reserved]

(4) For  Piper Aircraft, Inc.  service information identified  in this AD,
    contact Piper Aircraft Inc.,  2926 Piper Drive,  Vero Beach, FL 32960;
    phone:  (772)  299-2686;  email:  customerservice@piper.com;  website:
    https://www.piper.com/.

(5) You may view  this  service  information  at  the  FAA,  Airworthiness
    Products Section, Operational Safety Branch,  901 Locust, Kansas City,
    MO 64106. For information on the availability of this material at  the
    FAA, call (816) 329-4148.

(6) You may view this service information  that is incorporated  by refer-
    ence at the National  Archives and Records Administration  (NARA). For
    information  on  the availability  of  this material  at  NARA, email:
    fedreg.legal@nara.gov,  or  go  to:  https://www.archives.gov/federal-
    register/cfr/ibr-locations.html.

Issued on April 13, 2021. Lance T. Gant, Director, Compliance & Airworthi-
ness Division, Aircraft Certification Service.

FOR FURTHER INFORMATION CONTACT:  John  Lee,   Aviation  Safety  Engineer,
Atlanta ACO Branch,  FAA,  1701 Columbia Avenue,  College Park, GA  30337;
phone: (404) 474-5568; email: john.lee@faa.gov.
PREAMBLE 

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration


14 CFR Part 39

[Docket No. FAA-2021-0310; Project Identifier AD-2021-00269-A;
Amendment 39-21515; AD 2021-09-02]
RIN 2120-AA64

Airworthiness Directives; Piper Aircraft, Inc. Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule; request for comments.

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

SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2021-04-07
which applied to certain Piper Aircraft, Inc., (Piper) Models PA-46-
350P (Malibu Mirage), PA-46R-350T (Malibu Matrix), and PA-46-500TP
(Malibu Meridian) airplanes. AD 2021-04-07 required identifying and
correcting nonconforming stall warning heat control systems. Since AD
2021-04-07 was issued, the FAA was notified of an error in the stall
warning heat control modification kit part number. This AD retains all
of the actions in AD 2021-04-07 and corrects the incorrect modification
kit part number. The FAA is issuing this AD to address the unsafe
condition on these products.

DATES: This AD is effective April 16, 2021.
The Director of the Federal Register approved the incorporation by
reference of certain other publications listed in this AD as of March
30, 2021 (86 FR 10770, February 23, 2021).
The FAA must receive any comments on this AD by June 1, 2021.

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 https://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 final rule, contact
Piper Aircraft, Inc., 2926 Piper Drive, Vero Beach, FL 32960; phone:
(772) 567-4361; email: customerservice@piper.com; website: https://www.
piper.com. You may view this service information at the FAA,
Airworthiness Products Section, Operational Safety Branch, 901 Locust,
Kansas City, MO 64106. For information on the availability of this
material at the FAA, call (816) 329-4148. It is also available at
https://www.regulations.gov by searching for and locating Docket No.
FAA-2021-0310.

Examining the AD Docket

You may examine the AD docket at https://www.regulations.gov by
searching for and locating Docket No. FAA-2021-0310; 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 final rule, any
comments received, and other information. The street address for Docket
Operations is listed above.

FOR FURTHER INFORMATION CONTACT
: John Lee, Aviation Safety Engineer,
Atlanta ACO Branch, FAA, 1701 Columbia Avenue, College Park, GA 30337;
phone: (404) 474-5568; email: john.lee@faa.gov.

SUPPLEMENTARY INFORMATION:

Background

The FAA issued AD 2021-04-07, Amendment 39-21428 (86 FR 10770,
February 23, 2021), (AD 2021-04-07), for certain Piper Models PA-46-
350P (Malibu Mirage), PA-46R-350T (Malibu Matrix), and PA-46-500TP
(Malibu Meridian) airplanes. AD 2021-04-07 required identifying and
correcting nonconforming stall warning heat control systems. AD 2021-
04-07 resulted from the finding of airplanes without the proper stall
warning heater modification design change. Without the proper stall
warning heat control modification kit, during flights into icing
conditions with the landing gear down, ice can form on the stall vane,
which may result in failure of the stall warning system. The FAA issued
AD 2021-04-07 to require identifying and correcting nonconforming stall
warning heat control systems, which, if not addressed, could result in
the pilot being unaware of an approaching stall situation.

Actions Since AD 2021-04-07 Was Issued


Since the FAA issued AD 2021-04-07, Piper notified the FAA that
paragraph (g) of the AD incorrectly identifies the stall warning heat
control modification kit part number (P/N) as P/N 8452-002 instead of
P/N 88452-002. As there is no stall warning heat control modification
kit with P/N 8452-002, it is impossible for operators to comply with AD
2021-04-07 as written. This AD corrects the error.

FAA's Determination

The FAA is issuing this AD because the agency determined the unsafe
condition described previously is likely to exist or develop in other
products of the same type design.

Related Service Information Under 1 CFR Part 51

The FAA reviewed Piper Service Letter No. 1261, dated July 19,
2019. This service information specifies procedures to identify and
correct nonconforming stall warning heat control systems. The intent of
this service letter is to ensure that wiring for the stall warning heat
control system meets current type design. 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.

Other Related Service Information

The FAA reviewed Piper Mandatory Service Bulletin No. 1192, dated
September 15, 2008. This service bulletin is incorporated by reference
in AD 2008-26-11, Amendment 39-15777 (73 FR 78934, December 24, 2008),
which requires installing stall warning heat control modification kit
P/N 88452-002.

AD Requirements

This AD requires accomplishing the actions specified in the service
information described previously, except as discussed under ``Differences
Between This AD and the Service Information.''

Differences Between This AD and the Service Information

This AD does not require the first step, which is identified as a
``required for compliance'' (RC) step, of Piper Service Letter No.
1261, dated July 19, 2019. The first step specifies reviewing the
aircraft records to determine whether the inspection of the stall
warning heat control configuration must be done. This AD does not
require a records review. Instead, all airplanes identified in the
applicability of this AD have to inspect the stall warning heat control
configuration.

Justification for Immediate Adoption and Determination of the Effective
Date


Section 553(b)(3)(B) of the Administrative Procedure Act (APA) (5
U.S.C. 551 et seq.) authorizes agencies to dispense with notice and
comment procedures for rules when the agency, for ``good cause,'' finds
that those procedures are ``impracticable, unnecessary, or contrary to
the public interest.'' Under this section, an agency, upon finding good
cause, may issue a final rule without providing notice and seeking
comment prior to issuance. Further, section 553(d) of the APA
authorizes agencies to make rules effective in less than thirty days,
upon a finding of good cause.
Since this action retains all of the requirements of AD 2021-04-07
and only corrects an obvious error in the stall warning heat control
modification kit part number, it is unlikely that the FAA will receive
any adverse comments or useful information about this AD from U.S.
operators. Accordingly, notice and opportunity for prior public comment
are unnecessary, pursuant to 5 U.S.C. 553(b)(3)(B). In addition, for
the foregoing reasons, the FAA finds that good cause exists under 5
U.S.C. 553(d) for making this amendment effective in less than 30 days.

Comments Invited

The FAA invites you to send any written data, views, or arguments
about this final rule. Send your comments to an address listed under
ADDRESSES. Include ``Docket No. FAA-2021-0310 and Project Identifier
AD-2021-00269-A'' at the beginning of your comments. The most helpful
comments reference a specific portion of the proposal, explain the
reason for any recommended change, and include supporting data. The FAA
will consider all comments received by the closing date and may amend
this final rule because of those comments.
Except for Confidential Business Information (CBI) as described in
the following paragraph, and other information as described in 14 CFR
11.35, the FAA will post all comments received, without change, to
https://www.regulations.gov, including any personal information you
provide. The agency will also post a report summarizing each
substantive verbal contact received about this final rule.

Confidential Business Information

CBI is commercial or financial information that is both customarily
and actually treated as private by its owner. Under the Freedom of
Information Act (FOIA) (5 U.S.C. 552), CBI is exempt from public
disclosure. If your comments responsive to this AD contain commercial
or financial information that is customarily treated as private, that
you actually treat as private, and that is relevant or responsive to
this AD, it is important that you clearly designate the submitted
comments as CBI. Please mark each page of your submission containing
CBI as ``PROPIN.'' The FAA will treat such marked submissions as
confidential under the FOIA, and they will not be placed in the public
docket of this AD. Submissions containing CBI should be sent to John
Lee, Aviation Safety Engineer, Atlanta ACO Branch, FAA, 1701 Columbia
Avenue, College Park, GA 30337. Any commentary that the FAA receives
which is not specifically designated as CBI will be placed in the
public docket for this rulemaking.

Regulatory Flexibility Act


The requirements of the Regulatory Flexibility Act (RFA) do not
apply when an agency finds good cause pursuant to 5 U.S.C. 553 to adopt
a rule without prior notice and comment. Because the FAA has determined
that it has good cause to adopt this rule without prior notice and
comment, RFA analysis is not required.

Costs of Compliance

The FAA estimates that this AD affects 1,261 airplanes of U.S. registry.
The FAA estimates the following costs to comply with this AD:

Estimated Costs

Action
Labor cost
Parts cost
Cost per product
Cost on U.S. operators
Inspect stall warning heat control system. 1 work-hour x $85 per hour = $85
$0
$85
$107,185

The FAA estimates the following costs to do any necessary repairs
that will be required based on the results of the inspection. The FAA
has no way of determining the number of airplanes that might need these
repairs:

On-Condition Costs

Action
Labor cost
Parts cost
Cost per product
Install modification kit 1.5 work-hours x $85 per hour = $127.50
$230.00
$357.50

The FAA has included all known costs in its cost estimate.
According to the manufacturer, however, some or all of the costs of
this AD may be covered under warranty, thereby reducing the cost impact
on affected operators.

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.
The FAA is 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

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, and
(2) Will not affect intrastate aviation in Alaska.

List of Subjects in 14 CFR Part 39

Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.

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.

Sec. 39.13 [Amended]

2. The FAA amends Sec. 39.13 by:

a. Removing Airworthiness Directive 2021-04-07, Amendment 39-21428 (86
FR 10770, February 23, 2021); and

b. Adding the following new airworthiness directive: