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[Federal Register Volume 69, Number 204 (Friday, October 22, 2004)]
[Rules and Regulations]
[Pages 61993-61997]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 04-23620]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2004-19118; Directorate Identifier 2004-CE-25-AD; 
Amendment 39-13826; AD 2004-21-05]
RIN 2120-AA64

Airworthiness Directives; Kelly Aerospace Power Systems B-Series 
Combustion Heaters Models B1500, B2030, B2500, B3040, B3500, B4050, and 
B4500 (Formerly Owned by JanAero Devices, Janitrol, C&D, FL Aerospace, 
and Midland-Ross Corporation)

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule; request for comments.

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SUMMARY: The FAA is superseding Airworthiness Directive (AD) 96-20-07, 
which applies to certain B-Series Combustion Heaters Models B1500, 
B2030, B3040, and B4050 that are installed on airplanes. AD 96-20-07 
currently requires you to repetitively test (pressure decay) the 
combustion tube and overhaul any heater that does not pass any test. AD 
96-20-07 also requires you to repetitively test the operation of the 
combustion air pressure switch and replace any combustion pressure 
switch that does not pass one of the tests. As a terminating action for 
the repetitive test requirements of AD 96-20-07, you could install a 
new ceramic-coated combustion tube and an improved design combustion 
air pressure switch. This AD is the result of reports that the new 
ceramic-coated combustion tubes are subject to the same distress as the 
non-ceramic coated combustion tubes. Consequently, this AD retains the 
repetitive testing requirements of AD 96-20-07, removes the terminating 
action for the combustion tube, and adds Models B2500, B3500, and B4500 
to the applicability section. We are issuing this AD to prevent 
combustion by-products (carbon-monoxide exhaust) and fuel leakage from 
the combustion heaters caused by failure of the combustion heater 
system. This failure could result in fire or explosion in the airplane 
and possible carbon monoxide poisoning of the crew and passengers in 
the cabin.

DATES: This AD becomes effective on November 19, 2004.
    On November 14, 1996 (61 FR 51357, October 2, 1996), the Director 
of the Federal Register approved the incorporation by reference of 
JanAero Devices Service Bulletin  A-103, dated September 1995.
    We must receive any comments on this AD by December 20, 2004.

ADDRESSES: Use one of the following to submit comments on this AD:
     DOT Docket Web site: Go to http://dms.dot.gov and follow 
the instructions for sending your comments electronically.
     Government-wide rulemaking Web site: Go to http://www.regulations.gov and follow the instructions for sending your 
comments electronically.
     Mail: Docket Management Facility; U.S. Department of 
Transportation, 400 Seventh Street, SW., Nassif Building, Room PL-401, 
Washington, DC 20590-001.
     Fax: 1-202-493-2251.
     Hand Delivery: Room PL-401 on the plaza level of the 
Nassif Building, 400 Seventh Street, SW., Washington, DC, between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    To get the service information identified in this AD, contact Kelly 
Aerospace Power Systems, P.O. Box 273, Fort Deposit, Alabama 36032; 
telephone: (334) 227-8306; facsimile: (334) 227-8596; Internet: http://www.kellyaerospace.com.
    To view the comments to this AD, go to http://dms.dot.gov. The 
docket number is FAA-2004-19118.

FOR FURTHER INFORMATION CONTACT: Kevin L. Brane, Aerospace Engineer,

[[Page 61994]]

Atlanta Aircraft Certification Office, FAA, One Crown Center, 1985 
Phoenix Boulevard, Suite 450, Atlanta, GA 30349; telephone: (770) 703-
6063; facsimile: (770) 703-6097.

SUPPLEMENTARY INFORMATION:
    Has FAA taken any action to this point? Repeated reports of 
failures of the affected heaters prompted us to issue AD 96-20-07, 
Amendment 39-9773 (61 FR 51357, October 2, 1996). AD 96-20-07 applies 
to JanAero Devices B-Series Combustion Heaters, Models B1500, B2030, 
B3040, and B4050 (formerly owned by Janitrol, C&D, FL Aerospace, and 
Midland-Ross Corporation), marked as meeting the standards of TSO-C20, 
that do not incorporate a ceramic combustion tube and a combustion air 
pressure switch, part number (P/N) 94E42, that are installed on 
airplanes. AD 96-20-07 currently requires the following:
     Repetitively inspecting (pressure decay test) the 
combustion tube of the heater;
     Overhauling the heater and replacing the combustion tube 
with a serviceable tube or replacing the heater assembly if the heater 
fails any of these tests;
     Repetitively testing the operation of the combustion air 
pressure switch; and
     Replacing the switch with one of the same design or with 
one of improved design, P/N 94E42, if the combustion air pressure 
switch fails any of these tests.
    Replacing the heater assembly with a new or rebuilt heater assembly 
that incorporates a ceramic combustion tube terminates the repetitive 
inspection requirements.
    Replacing the combustion air pressure switch with a P/N 94E42 
switch terminates the repetitive operational test requirements.
    As an alternative method of compliance to AD 96-20-07, you may 
disable the heater.
    B-Series Combustion Heaters, Models B2500, B3500, and B4500 were 
exempt from AD 96-20-07 because they incorporated a ceramic-coated 
combustion tube and a new combustion air pressure switch, P/N 94E42.
    You must do the actions in AD 96-20-07 following JanAero Devices 
Service Bulletin  A-103, dated September 1995.
    What has happened since AD 96-20-07 to initiate this action? We 
have received reports that the ceramic-coated combustion tubes are 
subject to some of the same distress noted in the non-ceramic coated 
combustion tubes. The ceramic-coated combustion tubes were incorporated 
as a product improvement in AD 96-20-07 as a terminating action for the 
repetitive pressure decay.
    What is the potential impact if FAA took no action? If not detected 
and corrected, failure of the combustion heaters could cause combustion 
by-products (carbon-monoxide exhaust) and fuel to leak. This failure 
could result in fire or explosion in the airplane and possible carbon 
monoxide poisoning of the crew and passengers in the cabin.

FAA's Determination and Requirements of the AD

    What has FAA decided? We have evaluated all pertinent information 
and identified an unsafe condition that is likely to exist or develop 
on other products of this same type design.
    Since the unsafe condition described previously is likely to exist 
or develop on other airplanes that have certain B-Series Combustion 
Heaters Models B1500, B2030, B2500, B3040, B3500, B4050, and B4500 
installed, we are issuing this AD to prevent combustion by-products 
(carbon-monoxide exhaust) and fuel leakage from the combustion heaters 
caused by failure of the combustion heater system. This failure could 
result in fire or explosion in the airplane and possible carbon 
monoxide poisoning of the crew and passengers in the cabin.
    What does this AD require? This AD supersedes AD 96-20-07 with a 
new AD that retains the repetitive pressure decay test of the 
combustion tube and the repetitive operational test of the combustion 
air pressure switch from AD 96-20-07. This AD also removes the 
terminating action for the repetitive testing requirements of the 
combustion tube and adds B-Series Combustion Heaters, Models B2500, 
B3500, and B4500 to the applicability section.
    In preparing this rule, we contacted type clubs and aircraft 
operators to get technical information and information on operational 
and economic impacts. We did not receive any information through these 
contacts. If received, we would have included a discussion of any 
information that may have influenced this action in the rulemaking 
docket.
    How does the revision to 14 CFR part 39 affect this AD? On July 10, 
2002, we published a new version of 14 CFR part 39 (67 FR 47997, July 
22, 2002), which governs FAA's AD system. This regulation now includes 
material that relates to altered products, special flight permits, and 
alternative methods of compliance. This material previously was 
included in each individual AD. Since this material is included in 14 
CFR part 39, we will not include it in future AD actions.

Comments Invited

    Will I have the opportunity to comment before you issue the rule? 
This AD is a final rule that involves requirements affecting flight 
safety and was not preceded by notice and an opportunity for public 
comment; however, we invite you to submit any written relevant data, 
views, or arguments regarding this AD. Send your comments to an address 
listed under ADDRESSES. Include ``Docket No. FAA-2004-19118; 
Directorate Identifier 2004-CE-25-AD'' in the subject line of your 
comments. If you want us to acknowledge receipt of your mailed 
comments, send us a self-addressed, stamped postcard with the docket 
number written on it; we will date-stamp your postcard and mail it back 
to you. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of the rule that might 
suggest a need to modify it. If a person contacts us through a non-
written communication, and that contact relates to a substantive part 
of this AD, we will summarize the contact and place the summary in the 
docket. We will consider all comments received by the closing date and 
may amend the AD in light of those comments.

Regulatory Findings

    Will this AD impact various entities? We have 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.
    Will this AD involve a significant rule or regulatory action? For 
the reasons discussed above, I certify that 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 summary of the costs to comply with this AD and 
placed it in the AD Docket. You may get a copy of this summary by 
sending a request to us at the address listed under ADDRESSES. Include 
``AD Docket FAA-2004-19118; Directorate Identifier 2004-CE-25-AD'' in 
your request.

[[Page 61995]]

List of Subjects in 14 CFR Part 39

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

Adoption of the Amendment

0
Accordingly, under the authority delegated to me by the Administrator, 
the Federal Aviation Administration amends part 39 of the Federal 
Aviation Regulations (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 removing Airworthiness Directive (AD) 
96-20-07, Amendment 39-9773 (61 FR 51357, October 2, 1996), and by 
adding a new AD to read as follows:

2004-21-05 Kelly Aerospace Power Systems (Formerly Janaero Devices, 
Janitrol, C/D, FL Aerospace, and Midland-Ross Corporation): 
Amendment 39-13826; Docket No. FAA-2004-19118; Directorate 
Identifier 2004-CE-25-AD; Supersedes AD 96-20-07; Amendment 39-9773.

When Does This AD Become Effective?

    (a) This AD becomes effective on November 19, 2004.

Are Any Other ADs Affected by This Action?

    (b) This AD supersedes AD 96-20-07, Amendment 39-9773.

What Airplanes Are Affected by This AD?

    (c) This AD affects Kelly Aerospace Power Systems B-Series 
Combustion Heaters, Models B1500, B2030, B2500, B3040, B3500, B4050, 
and B4500, marked as meeting the standards of TSO-C20, that are 
installed on, but not limited to, the following aircraft (all serial 
numbers), and are certificated in any category:

----------------------------------------------------------------------------------------------------------------
                Manufacturer                                                Models
----------------------------------------------------------------------------------------------------------------
Raytheon Aircraft Company...................  58, 58P, 58TC, 60, A60, 76, and 95-B55 Series.
Bombardier Inc..............................  CL-215-1A10 (Water Bomber) CL215-6B11 (CL-215T Variant) (CL415
                                               Variant) .
The Cessna Aircraft Company.................  208, 310F, 310G, 310H, 310I, 310J, 310K, 310L, 310N, 310P, 320C,
                                               320D, 320E, 320F, 337 Series, 340, 340A, 414, 414A, 421, 421A,
                                               421B, and 421C.
----------------------------------------------------------------------------------------------------------------

    Note 1: B-Series Combustion Heaters Models B2500, B3500, and 
B4500 incorporate a new combustion air pressure switch, P/N 94E42. 
Airplanes that are equipped with P/N 94E42 do not need to conduct an 
operational test of the combustion air pressure switch. The part 
number is ink-stamped on the side of these combustion air pressure 
switches.

What Is the Unsafe Condition Presented in This AD?

    (d) This AD is the result of reports that the new ceramic-coated 
combustion tubes are subject to the same distress as the non-ceramic 
coated combustion tubes. We are issuing this AD to prevent 
combustion by-products (carbon-monoxide exhaust) and fuel leakage 
from the combustion heaters caused by failure of the combustion 
heater system. This failure could result in fire or explosion in the 
airplane and possible carbon monoxide poisoning of the crew and 
passengers in the cabin.

What Must I Do To Address This Problem?

    (e) For airplanes with an affected B-Series combustion heater 
that does not incorporate an extended-life ceramic-coated combustion 
tube, do the following:

------------------------------------------------------------------------
           Actions                 Compliance            Procedures
------------------------------------------------------------------------
(1) Perform the following:    For airplanes with    Follow the
(i) Using a pressure decay     450 or more heater    applicable
 test, inspect the             hours time-in-        instructions in
 combustion tube of the        service (TIS)         Janitrol
 heater; and.                  accumulated on an     Maintenance and
(ii) Conduct an operational    installed heater      Overhaul Manual
 test of the combustion air    since new             24E25-1.
 pressure switch. In some      installation or
 applications, the air         since the last
 pressure switch is remotely   overhaul: Within
 mounted on the airframe and   the next 50 hours
 not on the heater.            TIS or 12 calendar
 Regardless of where the air   months after
 pressure switch is located,   November 14, 1996
 the operational test          (the effective date
 requirements of this AD       of AD 96-20-07),
 still apply..                 whichever occurs
(iii) If an air pressure       first, unless
 switch, part number 94E42     already done.
 is currently installed, the  For airplanes with
 operational test is not       less than 450
 required..                    heater hours TIS
                               accumulated on an
                               installed heater
                               since new
                               installation or
                               since the last
                               overhaul: Upon the
                               accumulation of 500
                               heater hours TIS or
                               within the next 12
                               calendar months
                               after November 14,
                               1996 (the effective
                               date of AD 96-20-
                               07), whichever
                               occurs first,
                               unless already
                               done..
                              After doing the
                               initial inspection
                               and operational
                               test: Repetitively
                               inspect the
                               combustion tube and
                               perform the
                               operational test of
                               the air pressure
                               switch thereafter
                               at intervals not-to-
                               exceed 100 heater
                               hours TIS or 24
                               calendar months,
                               whichever occurs
                               first..
(2) After each inspection     Prior to further      Follow the
 required in paragraph         flight after the      applicable
 (e)(1) of this AD, if the     inspection required   instructions in
 heater does not pass the      in paragraph (e)(1)   Janitrol
 pressure decay test,          of this AD in which   Maintenance and
 overhaul the heater and       the combustion tube   Overhaul Manual
 replace the combustion tube   fails. After the      24E25-1.
 with a serviceable tube or    heater is
 replace the heater assembly.  overhauled or
                               replaced with a new
                               heater assembly,
                               the inspection
                               cycle starts over
                               upon the
                               accumulation of 500
                               heater hours TIS
                               with the repetitive
                               inspection
                               intervals
                               thereafter not-to-
                               exceed 100 heater
                               hours TIS or 24
                               calendar months,
                               whichever occurs
                               first.

[[Page 61996]]

 
(3) After each operational    Prior to further      Follow the
 test required in paragraph    flight after the      applicable
 (e)(1) of this AD, if any     operational test      instructions in
 air pressure switch does      required in           Janitrol
 not pass, replace the         paragraph (e)(1) of   Maintenance and
 switch with one of the same   this AD in which      Overhaul Manual
 design or with a P/N 94E42.   the switch failed.    24E25-1 and JanAero
                               After installing a    Devices Service
                               new switch,           Bulletin 
                               repetitively test     A-103, dated
                               the air pressure      September 1995.
                               switch thereafter
                               at intervals not-to-
                               exceed 100 heater
                               hours TIS or 24
                               calendar months,
                               whichever occurs
                               first. Replacing
                               the combustion air
                               pressure switch
                               with a P/N 94E42
                               switch terminates
                               the repetitive
                               operational testing
                               required in
                               paragraph (e)(1) of
                               this AD.
(4) As an alternative method  As of November 14,    Not applicable.
 of compliance to the          1996 (the effective
 requirements of this AD,      date of AD 96-20-
 you may disable the heater    07).
 by doing the following:
(i) Cap the fuel supply
 line;.
(ii) Disconnect the
 electrical power and ensure
 that the connections are
 properly secured to reduce
 the possibility of
 electrical spark or
 structural damage;.
(iii) Inspect and test to
 ensure that the cabin
 heater system is disabled;.
(iv) Ensure that no other
 aircraft system is affected
 by this action;.
(v) Ensure that there are no
 fuel leaks; and.
(vi) Fabricate a placard
 with the following words:
 ``System Inoperative''.
 Install this placard at the
 heater control valve within
 the pilot's clear view..
------------------------------------------------------------------------

    Note 2: You may use a heater hour meter to determine heater 
hours time-in-service (TIS). Also, you may divide aircraft hours TIS 
in half to calculate heater hours TIS.

    (f) For airplanes with an affected B-Series combustion heater 
that does incorporate an extended-life ceramic-coated combustion 
tube, do the following:

------------------------------------------------------------------------
           Actions                 Compliance            Procedures
------------------------------------------------------------------------
(1) Perform the following:    Upon the              Follow the
(i) Using a pressure decay     accumulation of 500   applicable
 test, inspect the             heater hours TIS or   instructions in
 combustion tube of the        within the next 100   Janitrol
 heater; and.                  hours TIS after the   Maintenance and
(ii) Conduct an operational    November 19, 2004     Overhaul Manual
 test of the combustion air    (the effective date   24E25-1.
 pressure switch. In some      of this AD),
 applications, the air         whichever occurs
 pressure switch is remotely   later. Repetitively
 mounted on the airframe and   inspect the
 not on the heater.            combustion tube and
 Regardless of where the air   perform the
 pressure switch is located,   operational test of
 the operational test          the air pressure
 requirements of this AD       switch thereafter
 still apply..                 at intervals not-to-
(iii) If an air pressure       exceed 100 heater
 switch, part number 94E42     hours TIS or 24
 is currently installed, the   calendar months,
 operational test is not       whichever occurs
 required..                    first.
(2) After each inspection     Prior to further      Follow the
 required in paragraph         flight after the      applicable
 (f)(1) of this AD, if the     inspection required   instructions in
 heater does not pass the      in paragraph (f)(1)   Janitrol
 pressure decay test,          of this AD in which   Maintenance and
 overhaul the heater and       the combustion tube   Overhaul Manual
 replace the combustion tube   fails. After the      24E25-1.
 with a serviceable tube or    heater is
 replace the heater assembly.  overhauled or
                               replaced with a new
                               heater assembly,
                               the inspection
                               cycle starts over
                               upon the
                               accumulation of 500
                               heater hours TIS
                               with the repetitive
                               inspection
                               intervals
                               thereafter not-to-
                               exceed 100 heater
                               hours TIS or 24
                               calendar months,
                               whichever occurs
                               first.
(3) After each operational    Prior to further      Follow the
 test required in paragraph    flight after the      applicable
 (f)(1) of this AD, if any     operational test      instructions in
 air pressure switch does      required in           Janitrol
 not pass, replace the         paragraph (f)(1) of   Maintenance and
 switch with one of the same   this AD in which      Overhaul Manual
 design or with a P/N 94E42.   the switch failed.    24E25-1 and JanAero
                               After installing a    Devices Service
                               new switch,           Bulletin 
                               repetitively test     A-103, dated
                               the air pressure      September 1995.
                               switch thereafter
                               at intervals not-to-
                               exceed 100 heater
                               hours TIS or 24
                               calendar months,
                               whichever occurs
                               first. Replacing
                               the combustion air
                               pressure switch
                               with a P/N 94E42
                               switch terminates
                               the repetitive
                               operational testing
                               required in
                               paragraph (f)(1) of
                               this AD.

[[Page 61997]]

 
(4) As an alternative method  As of the November    Not applicable.
 of compliance to the          19, 2004 (the
 requirements of this AD,      effective date of
 you may disable the heater    this AD).
 by doing the following:
(i) Cap the fuel supply
 line;.
(ii) Disconnect the
 electrical power and ensure
 that the connections are
 properly secured to reduce
 the possibility of
 electrical spark or
 structural damage;.
(iii) Inspect and test to
 ensure that the cabin
 heater system is disabled;.
(iv) Ensure that no other
 aircraft system is affected
 by this action;.
(v) Ensure that there are no
 fuel leaks; and.
(vi) Fabricate a placard
 with the following words:
 ``System Inoperative''.
 Install this placard at the
 heater control valve within
 the pilot's clear view..
------------------------------------------------------------------------

May I Request an Alternative Method of Compliance?

    (g) You may request a different method of compliance or a 
different compliance time for this AD by following the procedures in 
14 CFR 39.19. Unless FAA authorizes otherwise, send your request to 
your principal inspector. The principal inspector may add comments 
and will send your request to the Manager, Atlanta ACO, FAA. For 
information on any already approved alternative methods of 
compliance, contact Kevin L. Brane, Aerospace Engineer, Atlanta 
Aircraft Certification Office, FAA, One Crown Center, 1985 Phoenix 
Boulevard, Suite 450, Atlanta, GA 30349; telephone: (770) 703-6063; 
facsimile: (770) 703-6097.

Does This AD Incorporate Any Material by Reference?

    (h) You must do the actions required by this AD following the 
instructions in JanAero Devices Service Bulletin  A-103, 
dated September 1995.
    (1) On November 14, 1996 (61 FR 51357, October 2, 1996), and in 
accordance with 5 U.S.C. 552(a) and 1 CFR part 51, the Director of 
the Federal Register approved the incorporation by reference of 
JanAero Devices Service Bulletin  A-103, dated September 
1995.
    (2) You may get a copy from Kelly Aerospace Power Systems, PO 
Box 273, Fort Deposit, Alabama 36032; telephone: (334) 227-8306; 
facsimile: (334) 227-8596; Internet: http://www.kellyaerospace.com. 
To review copies of this service information, go to the National 
Archives and Records Administration (NARA). For information on the 
availability of this material at NARA, go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html or call (202) 741-6030. To view the AD docket, 
go to the Docket Management Facility; U.S. Department of 
Transportation, 400 Seventh Street, SW., Nassif Building, Room PL-
401, Washington, DC 20590-001 or on the Internet at http://dms.dot.gov. The docket number is FAA-2004-19118.

    Issued in Kansas City, Missouri, on October 13, 2004.
William J. Timberlake,
Acting Manager, Small Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 04-23620 Filed 10-21-04; 8:45 am]
BILLING CODE 4910-13-P
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