Published 2009-05-20 · Federal Register document E9-11518
Airworthiness Directives; Hartzell Propeller Inc. Steel Hub Turbine Propellers
Publication summary
The FAA is adopting a new airworthiness directive (AD) for Hartzell Propeller Inc. steel hub turbine propellers, with any counterweight slug attachment bolts, part number (P/N) B-3386-14H, LFC manufacturing lot 224, installed. This AD requires identifying and removing all counterweight slug attachment bolts, P/N B-3386-14H, LFC manufacturing lot 224, from service and installing serviceable bolts. This AD results from two reports of failure of the bolts that attach the propeller blade counterweight slug, and separation of the counterweight slug which led to propeller vibration and damage to the propeller spinner. We are issuing this AD to prevent separation of the propeller blade counterweight slug, which could lead to injury and damage to the airplane.
Why this record is shown
Source: Federal Register annual FAA metadata. Acquired 2026-09-03T22:23:30.011257+00:00. The title, summary and date are source facts.
- Source revision
- federal_register_ad_metadata_2009-cb57e588bd107238
- Source row
- results[136]
- Raw source SHA-256
- cb57e588bd10723805ef0ea28ddc0685de14711012023c7e7d12178879efaeed
Final-rule publication
Recorded publication clauses
- AD identifier printed in this edition
- 2009-10-14
- Effective date printed in this edition
- 2009-06-04
Read 10 complete recorded clauses
Effective Date
Effective Date
(a) This airworthiness directive (AD) becomes effective June 4,
2009.
Exact source excerpt. Text positions 9178–9270, end exclusive, in the original decoded publication. SHA-256: 9cd8678f50631683bb92501b669b720611eae2f4f346815d73c2cfa279f54c98
Affected ADs
Affected ADs
(b) None.
Exact source excerpt. Text positions 9270–9299, end exclusive, in the original decoded publication. SHA-256: 027fbc44617399472b6ac4741da3aee18448654374228bcf4fe3f01df6b1539b
Applicability wording · Applicability
Applicability
(c) This AD applies to the Hartzell Propeller Inc. steel hub
turbine propellers listed in Table 1 of this AD, with any
counterweight slug attachment bolts, part number (P/N) B-3386-14H,
LFC manufacturing lot 224, installed. These propellers are installed
on, but not limited to, the airplanes listed in Table 1 of this AD.
Table 1--Propeller Models Applicability
------------------------------------------------------------------------
Airplane
Propeller model manufacturer Airplane model
------------------------------------------------------------------------
HC-B3TN-5K.................. AERO COMMANDER...... 680T, 680V, 681.
HC-B3TN-5DL, -5FL, -5NL..... AERO COMMANDER...... 690(A, B, C), 695A.
HC-A3MVF-7B................. AEROSPACE N22B, N24A, N22S,
TECHNOLOGIES. N22C.
HC-A3VF-7, -7B.............. AEROSPACE N22B, N24A, N22S,
TECHNOLOGIES. N22C.
HC-B5MP-3A, -3C............. AIR TRACTOR......... AT-502A.
HC-B5MP-3C.................. AIR TRACTOR......... AT-503, 602.
HC-B5MA-3D(T)............... AIR TRACTOR......... AT-802.
HC-B5MP-3F.................. AIR TRACTOR......... AT-802.
HC-B5MA-5A.................. ANTONOV............. AN-38.
HC-B3TN-5V.................. AYRES............... S-2R.
HC-B4TN-5NL, -5PL........... AYRES............... S-2R(-1340), -G(5,
6, 10), -R3S, -
R1820, -T(6, 11,
15, 34, 45, 65).
HC-B5MP-3C.................. AYRES............... S-2R(HG)-T65.
HC-B3TN-3AE................. AYRES............... S-2R-T( ).
HC-B3TN-5K.................. BAE (JETSTREAM)..... 137.
HC-B4MP-3A.................. BEECH............... 1900C.
HC-B4MP-3B.................. BEECH............... 300, 300LW.
HC-B3TF-7A.................. BEECH............... A36, A36TC.
HC-B4MP-3C.................. BEECH............... B300, B300C.
HC-B4MN-5AL................. CASA................ C-212-CC, -CF.
HC-B3TF-7A.................. CESSNA.............. 206.
HC-B3TF-7................... CESSNA.............. 402.
HC-B3MN-3................... CESSNA.............. 208, 208A, 208B.
HC-B3TN-3AEY, -3AF.......... CESSNA.............. 208, 208A, 208B.
HC-B3TF-7A.................. CESSNA.............. P210N.
HC-B3TN-3AEY................ DE HAVILLAND CANADA. DHC-3.
HC-B4TN-5NL................. DE HAVILLAND CANADA. DHC-3.
HC-B5MA-3M.................. DE HAVILLAND CANADA. DHC-4.
HC-B4TN-5ML................. DORNIER............. DO228-100, -101, -
200, -201, -202, -
212.
HC-B4TN-5L.................. DORNIER............. DO228-200, -201, -
202, -212.
HC-B5MA-3(J, M, C).......... DOUGLAS............. DC-3C.
HC-B5MA-2................... EMBRAER............. EMB-314.
HC-B4TN-5EL, -5HL, -5KL..... FAIRCHILD AIRCRAFT.. SA-226T(B).
HC-B3TF-7, -7A.............. FLUG & FAHRZEUGWERKE AS202/32TP.
AG.
HC-B3TF-7A.................. FUJI................ KM-2D (T-5).
HC-B5MP-5................... GRUMMAN............. S-2.
HC-B5MA-5H.................. GRUMMAN............. S-2F3AT.
HC-3BTF-7A.................. MAULE............... M-7-420, MX(T)-7-
420.
HC-B4TN-5DL, -5GL, -5JL..... MITSUBISHI.......... MU-2B-25A, -26A, -
30, -35A, -36A, -40
(MU-2P), -60 (MU-
2N).
HC-B5MP-3(A)................ NORD................ 262 FRAKES.
HC-B5MP-3C.................. NORMAN AEROPLANE.... NAC 6-65.
HC-B5MP-3D.................. POLISH AVIATION M-28, -28B.
(MIELEC).
HC-B5MP-3G.................. POLISH AVIATION M-28B.
(MIELEC).
HC-B3TN-5U.................. PZL MIELEC.......... M18.
HC-B4TN-5NL................. PZL MIELEC.......... M18.
HC-B5MP-5BL................. PZL MIELEC.......... M18.
HC-B5MP-3C.................. PZL MIELEC.......... M18, M18A, M18B.
HC-B4MN-5B.................. ROCKWELL............ OV-10 (LEFT SIDE).
HC-B4MN-5BL................. ROCKWELL............ OV-10 (RIGHT SIDE).
HC-B5MP-3A.................. SHORT BROTHERS...... SD3-30.
HC-B5MP-3C.................. SHORT BROTHERS...... SD3-60-200, SD3-
SHERPA-200.
HC-B3TF-7A.................. SIAI MARCHETTI F.260C, D.
(AERMACCHI).
HC-B3TF-7A.................. SIAI MARCHETTI SM-1019.
(AERMACCHI).
HC-B3TF-7A.................. SIAI MARCHETTI SF600 CANGURO.
(VULCANAIR).
[[Page 23628]]
HC-B5MP-3(F)................ THRUSH AIRCRAFT..... S-2R-T660.
HC-B3TN-5FL, -5NL........... TWIN COMMANDER...... 690A, 690B, 690C.
HC-B3TF-7A.................. VALMET.............. L-90TP.
HC-B3TF-7A.................. VULCANAIR AP68TP-300, -600.
(PARTENAVIA).
------------------------------------------------------------------------
Exact source excerpt. Text positions 9299–14834, end exclusive, in the original decoded publication. SHA-256: 5d846adde565e2bd5a6b9b6438122383e2d7d84a6c8396e5cce1e84bc13b5e52
Unsafe Condition
Unsafe Condition
(d) This AD results from two reports of failure of the bolts
that attach the propeller blade counterweight slug, and separation
of the counterweight slug which led to propeller vibration and
damage to the propeller spinner. Investigation by Hartzell Propeller
Inc. revealed that the bolts failed due to a bolt manufacturing
defect. We are issuing this AD to prevent separation of the
propeller blade counterweight slug, which could lead to injury and
damage to the airplane.
Exact source excerpt. Text positions 14834–15339, end exclusive, in the original decoded publication. SHA-256: 168ebdbcfd127b19e1d927517a883f5fee1140bef945147f513c711212a6f1b1
Compliance
Compliance
(e) You are responsible for having the actions required by this
AD performed within 50 flight hours after the effective date of this
AD, unless the actions have already been done.
Exact source excerpt. Text positions 15339–15538, end exclusive, in the original decoded publication. SHA-256: 19d6e71077d44fdd53c39cc93c783714aea80e798bea9e132e58ac255b30eab3
Identification and Removal of All Propeller Blade Counterweight Slug Bolts, P/N B-3386-14H, LFC Manufacturing Lot 224, From Service, and Installation of Serviceable Bolts
Identification and Removal of All Propeller Blade Counterweight Slug
Bolts, P/N B-3386-14H, LFC Manufacturing Lot 224, From Service, and
Installation of Serviceable Bolts
(f) Identify and remove all propeller blade counterweight slug
bolts, P/N B-3386-14H, LFC manufacturing lot 224, from service, and
install serviceable bolts.
(g) Use paragraphs 3.A.(1) through 3.A.(4)(b)5 of the
Accomplishment Instructions of Hartzell Propeller Inc. ASB No. HC-
ASB-61-313, Revision 2, dated March 27, 2009, to do the
identification, removals from service, and installations.
Exact source excerpt. Text positions 15538–16118, end exclusive, in the original decoded publication. SHA-256: 27cf7e9c625194e4622736ff6eda96ce42d84bfa9af0431c42dde51e44fa8a37
Definition
Definition
(h) For the purpose of this AD, a serviceable propeller blade
counterweight slug bolt is a P/N B-3386-14H bolt with an LFC
manufacturing lot other than lot 224.
Exact source excerpt. Text positions 16118–16298, end exclusive, in the original decoded publication. SHA-256: e58c55633fa242d9b216bf8a3847d2f2c8c574bd7790a7baa5b136b498ba19b3
Alternative Methods of Compliance
Alternative Methods of Compliance
(i) The Manager, Chicago Aircraft Certification Office, has the
authority to approve alternative methods of compliance for this AD
if requested using the procedures found in 14 CFR 39.19.
Exact source excerpt. Text positions 16298–16528, end exclusive, in the original decoded publication. SHA-256: 87669737a48f9b421b97b5820635965254c8b1912fb47f9dfb11c7e7e5517e72
Related Information
Related Information
(j) Contact Tim Smyth, Senior Aerospace Engineer, Chicago
Aircraft Certification Office, FAA, Small Airplane Directorate, 2300
East Devon Avenue, Des Plaines, IL 60018-4696; e-mail:
[email protected]; telephone (847) 294-8110; fax (847) 294-7132,
for more information about this AD.
Exact source excerpt. Text positions 16528–16841, end exclusive, in the original decoded publication. SHA-256: 6f8bafc6b62fa8f677e85386f4552b50b0d79e5ea5e3fe2a93c017e273703031
Material Incorporated by Reference
Material Incorporated by Reference
(k) You must use Hartzell Propeller Inc. ASB No. HC-ASB-61-313,
Revision 2, dated March 27, 2009, to perform the actions required by
this AD. The Director of the Federal Register approved the
incorporation by reference of this service bulletin in accordance
with 5 U.S.C. 552(a) and 1 CFR part 51. Contact Hartzell Propeller
Inc. Technical Publications Department, One Propeller Place, Piqua,
OH 45356; telephone (937) 778-4200; fax (937) 778-4391, for a copy
of this service information. You may review copies at the FAA, New
England Region, 12 New England Executive Park, Burlington, MA; or at
the National Archives and Records Administration (NARA). For
information on the availability of this material at NARA, call 202-
741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html.
Exact source excerpt. Text positions 16841–17701, end exclusive, in the original decoded publication. SHA-256: e9201e3367cbf9b8440021c08129c5216788aed6335278b0bf935250e6dad396
No replacement link has been established from this edition. The complete historical rule chain and current legal effect remain unknown.
Find all recorded historical references to AD 2009-10-14 · 0 printed reference observations in this pinned collection.
These are observations from one dated publication. Current legal status is unknown; aircraft applicability, installed configuration, compliance and burden require separate evidence. Missing or unparsed conditions remain unknown.
Why these observations are shown
They were extracted offline from the same immutable official HTML source as the complete recorded text. The dated source wording, original text coordinates and exact quote digests are retained. PDF/text agreement and current regulatory effect have not been qualified.
Observation revision: whole-ad-publication-clause-observations-1.0.1. Text SHA-256: 8ef685f79c50cb358ece6006d0532ec8519c3ca9ba3b50231d32f94fefc30618. Source manifest: 3bb3626c3d5636a8646b78ebb8f2ab74f739326840b2b12adecc82d9bbc2b957.
Official source · 2009-05-20
Publication text
This is the complete recorded text of this dated publication.
Current legal effect is unknown. Aircraft applicability, installed configuration and compliance require separate evidence. PDF/text agreement has not been evaluated.
Read the complete official publication text
[Federal Register Volume 74, Number 96 (Wednesday, May 20, 2009)]
[Rules and Regulations]
[Pages 23625-23628]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: E9-11518]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2009-0114; Directorate Identifier 2009-NE-03-AD;
Amendment 39-15910; AD 2009-10-14]
RIN 2120-AA64
Airworthiness Directives; Hartzell Propeller Inc. Steel Hub
Turbine Propellers
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule; request for comments.
-----------------------------------------------------------------------
SUMMARY: The FAA is adopting a new airworthiness directive (AD) for
Hartzell Propeller Inc. steel hub turbine propellers, with any
counterweight slug attachment bolts, part number (P/N) B-3386-14H, LFC
manufacturing lot 224, installed. This AD requires identifying and
removing all counterweight slug attachment bolts, P/N B-3386-14H, LFC
manufacturing lot 224, from service and installing serviceable bolts.
This AD results from two reports of failure of the bolts that attach
the propeller blade counterweight slug, and separation of the
counterweight slug which led to propeller vibration and damage to the
propeller spinner. We are issuing this AD to prevent separation of the
[[Page 23626]]
propeller blade counterweight slug, which could lead to injury and
damage to the airplane.
DATES: This AD becomes effective June 4, 2009. The Director of the
Federal Register approved the incorporation by reference of certain
publications listed in the regulations as of June 4, 2009.
We must receive any comments on this AD by July 20, 2009.
ADDRESSES: Use one of the following addresses to comment on this AD:
<bullet> Federal eRulemaking Portal: Go to http://www.regulations.gov and follow the instructions for sending your
comments electronically.
<bullet> Mail: U.S. Docket Management Facility, Department of
Transportation, 1200 New Jersey Avenue, SE., West Building Ground
Floor, Room W12-140, Washington, DC 20590-0001.
<bullet> Hand Delivery: Deliver to Mail address above between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
<bullet> Fax: (202) 493-2251.
FOR FURTHER INFORMATION CONTACT: Tim Smyth, Senior Aerospace Engineer,
Chicago Aircraft Certification Office, FAA, Small Airplane Directorate,
2300 East Devon Avenue, Des Plaines, IL 60018-4696; e-mail:
[email protected]; telephone (847) 294-8110; fax (847) 294-7132.
SUPPLEMENTARY INFORMATION: In October 2008, we became aware of two
reports of failure of the bolts that attach the propeller blade
counterweight slug, and separation of the counterweight slug which led
to propeller vibration and damage to the propeller spinner.
Investigation by Hartzell Propeller Inc. revealed that the bolts failed
due to a bolt manufacturing defect. Hartzell Propeller Inc. determined
that the bolts in LFC manufacturing lot 224, are suspect for having
this defect. This condition, if not corrected, could result in
separation of the propeller blade counterweight slug, which could lead
to injury and damage to the airplane.
Relevant Service Information
We have reviewed and approved the technical contents of Hartzell
Propeller Inc. Alert Service Bulletin (ASB) No. HC-ASB-61-313, Revision
2, dated March 27, 2009. That ASB lists the affected Hartzell Propeller
Inc. steel hub turbine propeller models and describes procedures for
identifying and removing all counterweight slug attachment bolts, P/N
B-3386-14H, LFC manufacturing lot 224, from service, and installing
serviceable bolts.
FAA's Determination and Requirements of This AD
The unsafe condition described previously is likely to exist or
develop on other Hartzell Propeller Inc. steel hub turbine propellers
of the same type design. For that reason, we are issuing this AD to
prevent separation of the propeller blade counterweight slug, which
could lead to injury and damage to the airplane. This AD requires
identifying and removing all counterweight slug attachment bolts, P/N
B-3386-14H, LFC manufacturing lot 224, from service, within the next 50
flight hours after the effective date of the AD, and installing
serviceable bolts. You must use the service information described
previously to perform the actions required by this AD.
FAA's Determination of the Effective Date
Since an unsafe condition exists that requires the immediate
adoption of this AD, we have found that notice and opportunity for
public comment before issuing this AD are impracticable, and that good
cause exists for making this amendment effective in less than 30 days.
Comments Invited
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 send us any written relevant data,
views, or arguments regarding this AD. Send your comments to an address
listed under ADDRESSES. Include ``AD Docket No. FAA-2009-0114;
Directorate Identifier 2009-NE-03-AD'' in the subject line of your
comments. We specifically invite comments on the overall regulatory,
economic, environmental, and energy aspects of the rule that might
suggest a need to modify it.
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
with FAA personnel concerning this AD. Using the search function of the
Web site, anyone can find and read the comments in any of our dockets,
including, if provided, the name of the individual who sent the comment
(or signed the comment on behalf of an association, business, labor
union, etc.). You may review the DOT's complete Privacy Act Statement
in the Federal Register published on April 11, 2000 (65 FR 19477-78).
Examining the AD Docket
You may examine the AD docket on the Internet at http://www.regulations.gov; or in person at the Docket Operations office
between 9 a.m. and 5 p.m., Monday through Friday, except Federal
holidays. The AD docket contains this AD, the regulatory evaluation,
any comments received, and other information. The street address for
the Docket Operations office (telephone (800) 647-5527) is the same as
the Mail address provided in the ADDRESSES section. Comments will be
available in the AD docket shortly after receipt.
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 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.
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 at the
address listed under ADDRESSES.
[[Page 23627]]
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
0
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 adding the following new airworthiness
directive:
2009-10-14 Hartzell Propeller Inc.: Amendment 39-15910. Docket No.
FAA-2009-0114; Directorate Identifier 2009-NE-03-AD.
Effective Date
(a) This airworthiness directive (AD) becomes effective June 4,
2009.
Affected ADs
(b) None.
Applicability
(c) This AD applies to the Hartzell Propeller Inc. steel hub
turbine propellers listed in Table 1 of this AD, with any
counterweight slug attachment bolts, part number (P/N) B-3386-14H,
LFC manufacturing lot 224, installed. These propellers are installed
on, but not limited to, the airplanes listed in Table 1 of this AD.
Table 1--Propeller Models Applicability
------------------------------------------------------------------------
Airplane
Propeller model manufacturer Airplane model
------------------------------------------------------------------------
HC-B3TN-5K.................. AERO COMMANDER...... 680T, 680V, 681.
HC-B3TN-5DL, -5FL, -5NL..... AERO COMMANDER...... 690(A, B, C), 695A.
HC-A3MVF-7B................. AEROSPACE N22B, N24A, N22S,
TECHNOLOGIES. N22C.
HC-A3VF-7, -7B.............. AEROSPACE N22B, N24A, N22S,
TECHNOLOGIES. N22C.
HC-B5MP-3A, -3C............. AIR TRACTOR......... AT-502A.
HC-B5MP-3C.................. AIR TRACTOR......... AT-503, 602.
HC-B5MA-3D(T)............... AIR TRACTOR......... AT-802.
HC-B5MP-3F.................. AIR TRACTOR......... AT-802.
HC-B5MA-5A.................. ANTONOV............. AN-38.
HC-B3TN-5V.................. AYRES............... S-2R.
HC-B4TN-5NL, -5PL........... AYRES............... S-2R(-1340), -G(5,
6, 10), -R3S, -
R1820, -T(6, 11,
15, 34, 45, 65).
HC-B5MP-3C.................. AYRES............... S-2R(HG)-T65.
HC-B3TN-3AE................. AYRES............... S-2R-T( ).
HC-B3TN-5K.................. BAE (JETSTREAM)..... 137.
HC-B4MP-3A.................. BEECH............... 1900C.
HC-B4MP-3B.................. BEECH............... 300, 300LW.
HC-B3TF-7A.................. BEECH............... A36, A36TC.
HC-B4MP-3C.................. BEECH............... B300, B300C.
HC-B4MN-5AL................. CASA................ C-212-CC, -CF.
HC-B3TF-7A.................. CESSNA.............. 206.
HC-B3TF-7................... CESSNA.............. 402.
HC-B3MN-3................... CESSNA.............. 208, 208A, 208B.
HC-B3TN-3AEY, -3AF.......... CESSNA.............. 208, 208A, 208B.
HC-B3TF-7A.................. CESSNA.............. P210N.
HC-B3TN-3AEY................ DE HAVILLAND CANADA. DHC-3.
HC-B4TN-5NL................. DE HAVILLAND CANADA. DHC-3.
HC-B5MA-3M.................. DE HAVILLAND CANADA. DHC-4.
HC-B4TN-5ML................. DORNIER............. DO228-100, -101, -
200, -201, -202, -
212.
HC-B4TN-5L.................. DORNIER............. DO228-200, -201, -
202, -212.
HC-B5MA-3(J, M, C).......... DOUGLAS............. DC-3C.
HC-B5MA-2................... EMBRAER............. EMB-314.
HC-B4TN-5EL, -5HL, -5KL..... FAIRCHILD AIRCRAFT.. SA-226T(B).
HC-B3TF-7, -7A.............. FLUG & FAHRZEUGWERKE AS202/32TP.
AG.
HC-B3TF-7A.................. FUJI................ KM-2D (T-5).
HC-B5MP-5................... GRUMMAN............. S-2.
HC-B5MA-5H.................. GRUMMAN............. S-2F3AT.
HC-3BTF-7A.................. MAULE............... M-7-420, MX(T)-7-
420.
HC-B4TN-5DL, -5GL, -5JL..... MITSUBISHI.......... MU-2B-25A, -26A, -
30, -35A, -36A, -40
(MU-2P), -60 (MU-
2N).
HC-B5MP-3(A)................ NORD................ 262 FRAKES.
HC-B5MP-3C.................. NORMAN AEROPLANE.... NAC 6-65.
HC-B5MP-3D.................. POLISH AVIATION M-28, -28B.
(MIELEC).
HC-B5MP-3G.................. POLISH AVIATION M-28B.
(MIELEC).
HC-B3TN-5U.................. PZL MIELEC.......... M18.
HC-B4TN-5NL................. PZL MIELEC.......... M18.
HC-B5MP-5BL................. PZL MIELEC.......... M18.
HC-B5MP-3C.................. PZL MIELEC.......... M18, M18A, M18B.
HC-B4MN-5B.................. ROCKWELL............ OV-10 (LEFT SIDE).
HC-B4MN-5BL................. ROCKWELL............ OV-10 (RIGHT SIDE).
HC-B5MP-3A.................. SHORT BROTHERS...... SD3-30.
HC-B5MP-3C.................. SHORT BROTHERS...... SD3-60-200, SD3-
SHERPA-200.
HC-B3TF-7A.................. SIAI MARCHETTI F.260C, D.
(AERMACCHI).
HC-B3TF-7A.................. SIAI MARCHETTI SM-1019.
(AERMACCHI).
HC-B3TF-7A.................. SIAI MARCHETTI SF600 CANGURO.
(VULCANAIR).
[[Page 23628]]
HC-B5MP-3(F)................ THRUSH AIRCRAFT..... S-2R-T660.
HC-B3TN-5FL, -5NL........... TWIN COMMANDER...... 690A, 690B, 690C.
HC-B3TF-7A.................. VALMET.............. L-90TP.
HC-B3TF-7A.................. VULCANAIR AP68TP-300, -600.
(PARTENAVIA).
------------------------------------------------------------------------
Unsafe Condition
(d) This AD results from two reports of failure of the bolts
that attach the propeller blade counterweight slug, and separation
of the counterweight slug which led to propeller vibration and
damage to the propeller spinner. Investigation by Hartzell Propeller
Inc. revealed that the bolts failed due to a bolt manufacturing
defect. We are issuing this AD to prevent separation of the
propeller blade counterweight slug, which could lead to injury and
damage to the airplane.
Compliance
(e) You are responsible for having the actions required by this
AD performed within 50 flight hours after the effective date of this
AD, unless the actions have already been done.
Identification and Removal of All Propeller Blade Counterweight Slug
Bolts, P/N B-3386-14H, LFC Manufacturing Lot 224, From Service, and
Installation of Serviceable Bolts
(f) Identify and remove all propeller blade counterweight slug
bolts, P/N B-3386-14H, LFC manufacturing lot 224, from service, and
install serviceable bolts.
(g) Use paragraphs 3.A.(1) through 3.A.(4)(b)5 of the
Accomplishment Instructions of Hartzell Propeller Inc. ASB No. HC-
ASB-61-313, Revision 2, dated March 27, 2009, to do the
identification, removals from service, and installations.
Definition
(h) For the purpose of this AD, a serviceable propeller blade
counterweight slug bolt is a P/N B-3386-14H bolt with an LFC
manufacturing lot other than lot 224.
Alternative Methods of Compliance
(i) The Manager, Chicago Aircraft Certification Office, has the
authority to approve alternative methods of compliance for this AD
if requested using the procedures found in 14 CFR 39.19.
Related Information
(j) Contact Tim Smyth, Senior Aerospace Engineer, Chicago
Aircraft Certification Office, FAA, Small Airplane Directorate, 2300
East Devon Avenue, Des Plaines, IL 60018-4696; e-mail:
[email protected]; telephone (847) 294-8110; fax (847) 294-7132,
for more information about this AD.
Material Incorporated by Reference
(k) You must use Hartzell Propeller Inc. ASB No. HC-ASB-61-313,
Revision 2, dated March 27, 2009, to perform the actions required by
this AD. The Director of the Federal Register approved the
incorporation by reference of this service bulletin in accordance
with 5 U.S.C. 552(a) and 1 CFR part 51. Contact Hartzell Propeller
Inc. Technical Publications Department, One Propeller Place, Piqua,
OH 45356; telephone (937) 778-4200; fax (937) 778-4391, for a copy
of this service information. You may review copies at the FAA, New
England Region, 12 New England Executive Park, Burlington, MA; or at
the National Archives and Records Administration (NARA). For
information on the availability of this material at NARA, call 202-
741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html.
Issued in Burlington, Massachusetts, on May 8, 2009.
Peter A. White,
Assistant Manager, Engine and Propeller Directorate, Aircraft
Certification Service.
[FR Doc. E9-11518 Filed 5-19-09; 8:45 am]
BILLING CODE 4910-13-P
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