[Federal Register Volume 67, Number 151 (Tuesday, August 6, 2002)]
[Rules and Regulations]
[Pages 50799-50802]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 02-19253]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 2000-NE-32-AD; Amendment 39-12832; AD 2002-15-04]
RIN 2120-AA64


Airworthiness Directives; Honeywell International, Inc., 
(formerly AlliedSignal, Inc. and Textron Lycoming) T5313B, T5317 
Series, and T53 Series Turboshaft Engines

AGENCY: Federal Aviation Administration, DOT.

ACTION: Final rule.

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SUMMARY: This amendment adopts a new airworthiness directive (AD), that 
is applicable to Honeywell International, Inc., (formerly AlliedSignal, 
Inc. and Textron Lycoming) T5313B, T5317 series and former military T53 
series, turboshaft engines having certain serial number centrifugal 
compressor impellers, installed. This amendment requires for T53 series 
engines, a revised operating cycle count (prorate) for those compressor 
impellers if installed, and initial and repetitive inspections, with 
eventual compressor impeller replacement. In addition, this amendment 
requires the marking of those compressor impellers. This amendment is 
prompted by a report from the supplier that four centrifugal compressor 
impellers may have been inadvertently misidentified. The actions 
specified by this AD are intended to prevent premature failure of the 
impellers from being operated beyond their design service life, which 
could result in an uncontained engine failure, in-flight shutdown, or 
damage to the helicopter.

DATES: Effective September 10, 2002. The incorporation by reference of 
certain publications listed in the regulations is approved by the 
Director of the Federal Register as of September 10, 2002.

ADDRESSES: The service information referenced in this AD may be 
obtained from Honeywell International, Inc. (formerly AlliedSignal, 
Inc. and Textron Lycoming), Attn: Data Distribution, M/S 64-3/2101-201, 
P.O. Box 29003, Phoenix, AZ 85038-9003, telephone: (602) 365-2493; fax: 
(602) 365-5577. This information may be examined, by appointment, at 
the Federal Aviation Administration (FAA), New England Region, Office 
of the Regional Counsel, 12 New England Executive Park, Burlington, MA; 
or at the Office of the Federal Register, 800 North Capitol Street, NW, 
suite 700, Washington, DC.

FOR FURTHER INFORMATION CONTACT: Robert Baitoo, Aerospace Engineer, Los 
Angeles Aircraft Certification Office (ACO), FAA, Transport Airplane 
Directorate, 3960 Paramount Blvd., Lakewood, CA 90712-4137; telephone: 
(562) 627-5245; fax: (562) 627-5210.

SUPPLEMENTARY INFORMATION: A proposal to amend part 39 of the Federal 
Aviation Regulations (14 CFR part 39) to include an AD that is 
applicable to Honeywell International, Inc., (formerly AlliedSignal, 
Inc. and Textron Lycoming) T5313B, T5317 series and former military T53 
series, turboshaft engines having certain serial number centrifugal 
compressor impellers, installed was published in the Federal Register 
on June 12, 2001 (66 FR 31566). That action proposed to require for T53 
series engines, a revised operating cycle count (prorate) for those 
compressor impellers if installed, and initial and repetitive 
inspections, with eventual compressor impeller replacement. In 
addition, that action proposed to require the marking of those 
compressor impellers in accordance with Honeywell International, Inc. 
Service Bulletins (SB's) T5313B/17-0020, Revision 5, dated March 31, 
2001; T53-L-13B-0020, Revision 2, dated April 25, 2001; T53-L-13B/D-
0020, Revision 1, dated April 25, 2001; and T53-L-703-0020, Revision 1, 
dated April 25, 2001. Also, Textron Lycoming SB T5313B/17-0052, 
Revision 2, dated December 16, 1993; AlliedSignal, Inc. SB's T53-L-13B-
0108, Revision 1, dated November 22, 1999; T53-L-13B/D-0108, Revision 
1, dated November 22, 1999; and T53-L-703-0108, Revision 1, dated 
November 22, 1999.
    Since the publication of the proposed amendment, two Honeywell 
International, Inc. service bulletins have been revised. Therefore, 
this AD requires compliance in accordance with Honeywell International, 
Inc. SB's T5313B/17-0020, Revision 6, dated May 2, 2001 and T53-L-13B-
0020, Revision 3, dated October 25, 2001.

Comments

    Interested persons have been afforded an opportunity to participate 
in the making of this amendment. No comments were received on the 
proposal or the FAA's determination of the cost to the public. The FAA 
has determined that air safety and the public interest require the 
adoption of the rule as proposed.

Economic Analysis

    The FAA estimates there are approximately four Honeywell 
International, Inc., (formerly AlliedSignal, Inc., and Textron 
Lycoming) T5313B series, T5317 series, and former military T53 series 
turboshaft engines having the misidentified centrifugal compressor 
impellers, that are installed on helicopters of U.S. registry. The FAA 
also estimates that it would take approximately eight work hours per 
engine to perform the inspection, and that the average labor rate is 
$60 per work hour. No additional work hour cost would be incurred if 
the centrifugal compressor impeller is replaced during normal engine 
disassembly. The prorated cost of a replacement compressor impeller is 
estimated to be $20,000. Based on these figures, the total labor cost 
of the AD to U.S. operators is estimated to be $21,920.

Regulatory Analysis

    This final rule does not have federalism implications, as defined 
in Executive Order 13132, because it 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. Accordingly, 
the FAA has not consulted with state authorities prior to publication 
of this final rule.

[[Page 50800]]

    For the reasons discussed above, I certify that this action (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. A final evaluation has been prepared for this action 
and it is contained in the Rules Docket. A copy of it may be obtained 
by contacting the Rules Docket at the location provided under the 
caption ADDRESSES.

List of Subjects in 14 CFR Part 39

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

Adoption of the Amendment

    Accordingly, pursuant to 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

    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. Section 39.13 is amended by adding a new airworthiness directive 
to read as follows:

2002-15-04  Honeywell International, Inc., (formerly AlliedSignal, 
Inc. and Textron Lycoming) T5313B, T5317 Series, and T53 Series 
Turboshaft Engines: Amendment 39-12832. Docket No. 2000-NE-32-AD.
    Applicability: This airworthiness directive (AD) is applicable 
to Honeywell International, Inc., (formerly AlliedSignal, Inc., and 
Textron Lycoming) T5313B series, T5317 series, and former military 
T53 series, turboshaft engines with centrifugal compressor impellers 
having serial numbers (SN's) 83317, 83327, 83328, or 83330 
installed. These engines are installed on, but not limited to Bell 
Helicopter Textron 204, 205, and 209 series, and Kaman K-1200 series 
helicopters, and the following surplus military helicopters that 
have been certified in accordance with Secs. 21.25 or 21.27 of the 
Federal Aviation Regulations (14 CFR 21.25 or 21.27): Bell 
Helicopter Textron manufactured AH-1, UH-1, and SW-204/205 (UH-1) 
series.

    Note 1: This AD applies to each engine identified in the 
preceding applicability provision, regardless of whether it has been 
modified, altered, or repaired in the area subject to the 
requirements of this AD. For engines that have been modified, 
altered, or repaired so that the performance of the requirements of 
this AD is affected, the owner/operator must request approval for an 
alternative method of compliance in accordance with paragraph (i) of 
this AD. The request should include an assessment of the effect of 
the modification, alteration, or repair on the unsafe condition 
addressed by this AD; and, if the unsafe condition has not been 
eliminated, the request should include specific proposed actions to 
address it.

    Compliance: Compliance with this AD is required as indicated, 
unless already done.
    To prevent premature failure of the impellers from being 
operated beyond their design service life, which could result in an 
uncontained engine failure, in-flight shutdown, or damage to the 
helicopter, do the following:

Life Limits

    (a) When conducting a revised centrifugal compressor impeller 
operating cycle count on impellers having SN's 83317, 83327, 83328, 
or 83330, consider these impellers to be centrifugal compressor 
impeller P/N 1-100-078-07. The life limit must use the value as if 
these centrifugal compressor impellers are P/N 1-100-078-07.

Revised Operating Cycle Count (Prorate) for T53 Engines

    (b) For T5313B series, T5317 series, and former military T53 
series engines, within 25 operating cycles or 7 calendar days, 
whichever occurs first, after the effective date of this AD, perform 
the following:
    (1) Conduct a revised centrifugal compressor impeller operating 
cycle count (prorate) in accordance with paragraph 2.E.of the 
Honeywell International, Inc. Service Bulletin (SB) that applies to 
the engine, from the following list:
    (i) For T53-L-13B series engines, use SB T53-L-13B-0020, 
Revision 3, dated October 25, 2001.
    (ii) For T53-L-13B/D engines, use SB T53-L-13B/D-0020, Revision 
1, dated April 25, 2001.
    (iii) For T53-L-703 engines, use SB T53-L-703-0020, Revision 1, 
dated April 25, 2001.
    (iv) For T5313B series and T5317 series engines, use SB T531B/
17-0020, Revision 6, dated May 2, 2001.
    (2) Remove from service centrifugal compressor impellers with 
SN's 83317, 83327, 83328, or 83330, that exceed their new life limit 
as calculated in accordance with paragraph (b)(1) of this AD.

Impeller Marking

    (c) At the next access to the centrifugal compressor impeller, 
mark the impeller by vibropeening a line over the -14 suffix, and 
vibropeen a -07 suffix immediately following the -14. Use the 
following vibropeening parameters:
    (1) Vibropeen to a depth of 0.001-0.006 inch.
    (2) Do not vibropeen within 0.30 inch of corners, fillets, or 
sharp edges.

Definition

    (d) For the purpose of this AD, access to the centrifugal 
compressor impeller is defined as whenever the turboshaft engine is 
disassembled sufficiently as specified by the applicable maintenance 
manual, to expose the compressor impeller for marking in accordance 
with paragraph (c) of this AD.

Inspection of Impellers on T5313B and T5317 Series Engines

    (e) For T5313B and T5317 series engines, inspect centrifugal 
compressor impellers having SN's 83317, 83327, 83328, or 83330, for 
cracks in accordance with the Accomplishment Instructions of Textron 
Lycoming SB No. T5313B/17-0052, Revision 2, dated December 16, 1993, 
as follows:
    (1) For those centrifugal compressor impellers installed on 
AlliedSignal, Inc. Model T5313B engines, accomplish the following:
    (i) For centrifugal compressor impellers with equal to or 
greater than 4,600 cycles in service (CIS) on the effective date of 
this AD, initially inspect within 200 CIS after the effective date 
of this AD.
    (ii) For those centrifugal compressor impellers with less than 
4,600 CIS on the effective date of this AD, initially inspect no 
later than 4,800 CIS.
    (2) For those centrifugal compressor impellers installed on 
AlliedSignal, Inc. T5317 series engines, accomplish the following:
    (i) For those centrifugal compressor impellers with equal to or 
greater than 3,500 CIS on the effective date of this AD, initially 
inspect within 200 CIS after the effective date of this AD.
    (ii) For those centrifugal compressor impellers with less than 
3,500 CIS on the effective date of this AD, initially inspect no 
later than 3,700 CIS.
    (3) Centrifugal compressor impellers found cracked in accordance 
with the Accomplishment Instructions of Textron Lycoming SB No. 
T5313B/17-0052, Revision 2, dated December 16, 1993, must be removed 
from service and replaced with a serviceable part that does not 
exceed the life limit.
    (4) If no cracks are detected, perform repetitive inspections of 
the centrifugal compressor impellers at intervals not to exceed 500 
CIS since last inspection in accordance with the Accomplishment 
Instructions of Textron Lycoming SB No. T5313B/17-0052, Revision 2, 
dated December 16, 1993.

Inspection of Impellers on T53-L-13B Series Engines

    (f) For T53-L-13B series engines with centrifugal compressor 
impellers having SN's 83317, 83327, 83328, or 83330, perform the 
following:
    (1) Within 25 operating hours from the effective date of this 
AD, inspect the centrifugal compressor impeller for cracks using the 
revised cycle count (prorate) required by paragraph (b)(1) of this 
AD, in accordance with Accomplishment Instructions of AlliedSignal, 
Inc. SB No. T53-L-13B-0108, Revision 1, dated November 22, 1999.
    (2) If cracks are detected, then prior to further flight, 
replace centrifugal compressor impellers found cracked in accordance 
with

[[Page 50801]]

the Accomplishment Instructions of AlliedSignal, Inc. SB No. T53-L-
13B-0108, Revision 1, dated November 22, 1999, and replace with a 
centrifugal compressor impeller P/N 1-100-078-13/-14.
    (3) If no cracks are detected, perform repetitive inspections of 
the centrifugal compressor impellers at intervals not to exceed 100 
operating hours since last inspection in accordance with the 
Accomplishment Instructions of AlliedSignal, Inc. SB No. T53-L-13B-
0108, Revision 1, dated November 22, 1999.
    (4) Within 300 operating hours or 6 calendar months, whichever 
occurs first, after the effective date of this AD, replace 
centrifugal compressor impellers having SN's 83317, 83327, 83328, or 
83330, with a centrifugal compressor impeller P/N 1-100-078-13/-14. 
Replacement of centrifugal compressor impellers having SN's 83317, 
83327, 83328, or 83330, with a centrifugal compressor impeller P/N 
1-100-078-13/-14 constitutes terminating action for the inspection 
requirements of paragraphs (f)(1) and (f)(3) of this AD.

Inspection of Impellers on T53-L-13B/D Series Engines

    (g) For T53-L-13B/D series engines with centrifugal compressor 
impellers having SN's 83317, 83327, 83328, or 83330, perform the 
following:
    (1) Within 25 operating hours from the effective date of this 
AD, inspect the centrifugal compressor impeller for cracks using the 
revised cycle count (prorate) required by paragraph (b)(1) of this 
AD, in accordance with Accomplishment Instructions of AlliedSignal, 
Inc. SB No. T53-L-13B/D-0108, Revision 1, dated November 22, 1999.
    (2) If cracks are detected, then prior to further flight, 
replace centrifugal compressor impellers found cracked in accordance 
with the Accomplishment Instructions of AlliedSignal, Inc. SB No. 
T53-L-13B/D-0108, Revision 1, dated November 22, 1999, and replace 
with a centrifugal compressor impeller P/N 1-100-078-13/-14.
    (3) If no cracks are detected, perform repetitive inspections of 
the centrifugal compressor impellers at intervals not to exceed 100 
operating hours since last inspection in accordance with the 
Accomplishment Instructions of AlliedSignal, Inc. SB No. T53-L-13B/
D-0108, Revision 1, dated November 22, 1999.
    (4) Within 300 operating hours or 6 calendar months, whichever 
occurs first, after the effective date of this AD, replace 
centrifugal compressor impellers having SN's 83317, 83327, 83328, or 
83330, with a centrifugal compressor impeller P/N 1-100-078-13/-14. 
Replacement of centrifugal compressor impellers having SN's 83317, 
83327, 83328, or 83330, with a centrifugal compressor impeller P/N 
1-100-078-13/-14 constitutes terminating action for the inspection 
requirements of paragraphs (g)(1) and (g)(3) of this AD.

Inspection of Impellers on T53-L-703 Engines

    (h) For T53-L-703 series engines with centrifugal compressor 
impellers having SN's 83317, 83327, 83328, or 83330, perform the 
following:
    (1) Within 25 operating hours from the effective date of this 
AD, inspect the centrifugal compressor impeller for cracks using the 
revised cycle count (prorate) required by paragraph (b)(1) of this 
AD, in accordance with Accomplishment Instructions of AlliedSignal, 
Inc. SB No. T53-L-703-0108, Revision 1, dated November 22, 1999.
    (2) If cracks are detected, then prior to further flight, 
replace centrifugal compressor impellers found cracked in accordance 
with the Accomplishment Instructions of AlliedSignal, Inc. SB No. 
T53-L-703-0108, Revision 1, dated November 22, 1999, and replace 
with a centrifugal compressor impeller part number (P/N) 1-100-078-
13/-14.
    (3) If no cracks are detected, perform repetitive inspections of 
the centrifugal compressor impellers at intervals not to exceed 100 
operating hours since last inspection in accordance with the 
Accomplishment Instructions of AlliedSignal, Inc. SB No. T53-L-703-
0108, Revision 1, dated November 22, 1999.
    (4) Within 300 operating hours or 6 calendar months, whichever 
occurs first, after the effective date of this AD, replace 
centrifugal compressor impellers having SN's 83317, 83327, 83328, or 
83330, with a centrifugal compressor impeller P/N 1-100-078-13/-14. 
Replacement of centrifugal compressor impellers having SN's 83317, 
83327, 83328, or 83330, with a centrifugal compressor impeller P/N 
1-100-078-13/-14 constitutes terminating action for the inspection 
requirements of paragraphs (h)(1) and (h)(3) of this AD.

Alternative Methods of Compliance

    (i) An alternative method of compliance or adjustment of the 
compliance time that provides an acceptable level of safety may be 
used if approved by the Manager, Los Angeles Aircraft Certification 
Office (ACO). Operators must submit their requests through an 
appropriate FAA Principal Maintenance Inspector, who may add 
comments and then send it to the Manager, Los Angeles ACO.

    Note 2: Information concerning the existence of approved 
alternative methods of compliance with this AD, if any, may be 
obtained from the Los Angeles ACO.

Special Flight Permits

    (j) Special flight permits may be issued in accordance with 
Secs. 21.197 and 21.199 of the Federal Aviation Regulations (14 CFR 
21.197 and 21.199) to operate the helicopter to a location where the 
requirements of this AD can be done.

Documents That Have Been Incorporated by Reference

    (k) The inspections must be done in accordance with the 
following SB's:

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            Document No.                      Pages                 Revision                     Date
----------------------------------------------------------------------------------------------------------------
Honeywell International, Inc., SB    All...................  6.....................  May 2, 2001.
 T5313B/17-0020.
Total pages 14
Honeywell International, Inc., SB    All...................  3.....................  Oct. 25, 2001.
 T53-L-13B-0020.
Total pages 13
Honeywell International, Inc., SB    All...................  1.....................  April 25, 2001.
 T53-L-13B/D-0020.
Total pages 12
Honeywell International, Inc., SB    All...................  1.....................  April 25, 2001.
 T53-L-703-0020.
Total pages 12
Textron Lycoming SB, SB T5313B/17-   All...................  2.....................  Dec. 16, 1993.
 0052.
Total pages 8
AlliedSignal, Inc., SB T53-L-13B-    1.....................  Original..............  July 22, 1999.
 0108.                               2.....................  1.....................  Nov. 22, 1999.
                                     3-12..................  Original..............  July 22, 1999.
Total pages 12
Allied Signal, Inc., SB T53-L-13B/D- 1.....................  Original..............  July 22, 1999.
 0108.                               2.....................  1.....................  Nov. 22, 1999.
                                     3-12..................  Original..............  July 22, 1999.
Total pages 12
AlliedSignal, Inc., SB T53-L-703-    1.....................  Original..............  July 22, 1999.
 0108.                               2.....................  1.....................  Nov. 22, 1999.
                                     3-12..................  Original..............  July 22, 1999.
Total pages 12
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[[Page 50802]]

This incorporation by reference was approved by the Director of the 
Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 
51. Copies may be obtained from Honeywell International Inc. 
Aerospace Services Attn.: Data Distribution, M/S 64-3/2101-201, PO 
Box 29003, Phoenix, AZ 85038-9003; telephone (602) 365-2493, fax 
(602) 365-5577. Copies may be inspected, by appointment, at the FAA, 
New England Region, Office of the Regional Counsel, 12 New England 
Executive Park, Burlington, MA; or at the Office of the Federal 
Register, 800 North Capitol Street, NW, suite 700, Washington, DC.

Effective Date

    (l) This amendment becomes effective on September 10, 2002.

    Issued in Burlington, Massachusetts, on July 19, 2002.
Jay J. Pardee,
Manager, Engine and Propeller Directorate, Aircraft Certification 
Service.
[FR Doc. 02-19253 Filed 8-5-02; 8:45 am]
BILLING CODE 4910-13-P