AD 2011-27-51
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Beechcraft | 1900 | Airworthiness Directives; Hawker Beechcraft Corporation Models 1900, 1900C, and 1900D Airplanes |
Unsafe Condition
Elevator bob-weight traveling past its stop bolt, allowing the attaching linkage to move over-center, resulting in reduced nose down elevator control and potential loss of control of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the elevator bob-weight and attaching linkage for correct installation and for damage or deformation to the weight and/or weight bracket, with corrective action as necessary.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Hawker Beechcraft Corporation Models 1900, 1900C, and 1900D airplanes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
We are adopting a new airworthiness directive (AD) for certain Hawker Beechcraft Corporation Models 1900, 1900C, and 1900D airplanes. This emergency AD was sent previously to all known U.S. owners and operators of these airplanes. This AD requires inspecting the elevator bob-weight and attaching linkage for correct installation and for damage or deformation to the weight and/or weight bracket with corrective action as necessary. This AD was prompted by reports of the elevator bob-weight (stabilizer weight) traveling past its stop bolt, which allowed the attaching linkage to move over-center, resulting in reduced nose down elevator control, which could result in loss of control of the airplane. We are issuing this AD to detect and correct conditions that could result in reduced nose down elevator control and loss of control of the airplane.
Applicability Source Text
Show captured applicability text from the source AD
(c) Applicability
This AD applies to the following Hawker Beechcraft Corporation
airplanes, certificated in any category:
------------------------------------------------------------------------
Models Serial Nos.
------------------------------------------------------------------------
(1) 1900.............................. UA-3.
(2) 1900C............................. UB-1 through UB-74 and UC-1
through UC-174.
(3) 1900C (Military).................. UD-1 through UD-6.
(4) 1900D............................. UE-1 through UE-439.
------------------------------------------------------------------------
Document Text
Show stored source text (verify against official source)
[Federal Register Volume 77, Number 11 (Wednesday, January 18, 2012)]
[Rules and Regulations]
[Pages 2439-2442]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2012-604]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2012-0014; Directorate Identifier 2011-CE-044-AD;
Amendment 39-16915; AD 2011-27-51]
RIN 2120-AA64
Airworthiness Directives; Hawker Beechcraft Corporation Models
1900, 1900C, and 1900D Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule; request for comments.
-----------------------------------------------------------------------
SUMMARY: We are adopting a new airworthiness directive (AD) for certain
Hawker Beechcraft Corporation Models 1900, 1900C, and 1900D airplanes.
This emergency AD was sent previously to all known U.S. owners and
operators of these airplanes. This AD requires inspecting the elevator
bob-weight and attaching linkage for correct installation and for
damage or deformation to the weight and/or weight bracket with
corrective action as necessary. This AD was prompted by reports of the
elevator bob-weight (stabilizer weight) traveling past its stop bolt,
which allowed the attaching linkage to move over-center, resulting in
reduced nose down elevator control, which could result in loss of
control of the airplane. We are issuing this AD to detect and correct
conditions that could result in reduced nose down elevator control and
loss of control of the airplane.
DATES: This AD is effective January 18, 2012 to all persons except
those persons to whom it was made immediately effective by Emergency AD
2011-27-51, issued on December 23, 2011, which contained the
requirements of this amendment.
The Director of the Federal Register approved the incorporation by
reference of a certain publication identified in the AD as of January
18, 2012.
We must receive comments on this AD by March 5, 2012.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
[[Page 2440]]
<bullet> Federal eRulemaking Portal: Go to <a href="http://www.regulations.gov">http://www.regulations.gov</a>. Follow the instructions for submitting comments.
<bullet> Fax: (202) 493-2251.
<bullet> 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.
<bullet> 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 AD, contact Hawker
Beechcraft Corporation at P.O. Box 85, Wichita, Kansas 67201-0085;
telephone: (800) 429-5372 or (316) 676-3140; Internet: <a href="http://pubs.hawkerbeechcraft.com">http://pubs.hawkerbeechcraft.com</a>.
Examining the AD Docket
You may examine the AD docket on the Internet at <a href="http://www.regulations.gov">http://www.regulations.gov</a>; 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 (phone: (800) 647-5527) is in the
ADDRESSES section. Comments will be available in the AD docket shortly
after receipt.
FOR FURTHER INFORMATION CONTACT ONE OF THE FOLLOWING:
<bullet> Paul DeVore, Aerospace Engineer, Wichita ACO, FAA, 1801
Airport Road, Room 100, Wichita, Kansas 67209; telephone: (316) 946-
4142; fax: (316) 946-4107; email: <a href="/cdn-cgi/l/email-protection#9aeafbeff6b4feffecf5e8ffdafcfbfbb4fdf5ec"><span class="__cf_email__" data-cfemail="14647561783a7071627b6671547275753a737b62">[email protected]</span></a>; or
<bullet> Don Ristow, Aerospace Engineer, Wichita ACO, FAA, 1801 Airport
Road, Room 100, Wichita, Kansas 67209; telephone: (316) 946-4120; fax:
(316) 946-4107; email: <a href="/cdn-cgi/l/email-protection#31555e5f505d551f435842455e46715750501f565e47"><span class="__cf_email__" data-cfemail="4b2f24252a272f653922383f243c0b2d2a2a652c243d">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Discussion
On December 23, 2011, we issued Emergency AD 2011-27-51, which
requires inspecting the elevator bob-weight and attaching linkage for
correct installation and for damage or deformation to the weight and/or
weight bracket with corrective action as necessary. This AD was
prompted by the following reports of the elevator bob-weight
(stabilizer weight) traveling past its stop bolt, which allowed the
attaching linkage to move over-center, reducing nose down elevator
control.
In one instance, a Model 1900C airplane experienced jammed
elevators on take-off after a loud bang was heard in the cockpit
shortly after rotation. The flight crew noticed that they were unable
to move the control column to a nose down position. Elevator movement
was only available between neutral to full deflection nose up. The
airplane pitch was controlled with the elevator trim and the airplane
returned to base, landing safely. Upon inspection, mechanics noticed
that the bob-weight interconnect link, part number (p/n) 101-524112-1,
was upside down and trailing forward from the control column weld
assembly instead of trailing aft as it should. With the link traveled
over-center, the geometry of the bob-weight was completely changed
relative to its stop. This condition made the bob-weight hit its stop
mid-travel, where it should actually have positive clearance from its
stop at the full nose down position. The elevator could now only move
between nose full up and neutral.
In another instance, on a Model 1900D airplane, during the takeoff
roll the elevator controls felt heavy and appeared to be jammed/
sticking, requiring more force than usual to rotate. The crew then
aborted the takeoff run. Subsequent investigation revealed that the
elevator bob-weight attaching link assembly traveled over-center, thus
preventing full nose down elevator control authority.
The Model 1900 airplanes have the same type design and thus are
subject to this unsafe condition.
This condition, if not corrected, could result in reduced nose down
elevator control and loss of airplane control.
Relevant Service Information
We reviewed Hawker Beechcraft Corporation Safety Communiqu[eacute]
<greek-i>321, dated December 2011. The service information provides
information to assist in doing the actions of this AD.
FAA's Determination
We are issuing this AD because we evaluated all the relevant
information and determined the unsafe condition described previously is
likely to exist or develop in other products of the same type design.
AD Requirements
This AD requires inspecting the elevator bob-weight and attaching
linkage for correct installation and for damage or deformation to the
weight and/or weight bracket with corrective action as necessary.
Interim Action
We consider this AD interim action to address the immediate unsafe
condition affecting these airplanes. We may take further AD action at a
later date.
FAA's Determination of the Effective Date
An unsafe condition exists that requires the immediate adoption of
this AD. The FAA has found that the risk to the flying public justifies
waiving notice and comment prior to adoption of this rule because the
elevator stabilizer weight (bob-weight) could move over-center
resulting in reduced nose down elevator control, which could result in
loss of control of the airplane. Therefore, we find that notice and
opportunity for prior public comment 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 any written data, views, or
arguments about this AD. Send your comments to an address listed under
the ADDRESSES section. Include the docket number FAA-2012-0014 and
Directorate Identifier 2011-CE-044-AD at the beginning of your
comments. We specifically invite comments on the overall regulatory,
economic, environmental, and energy aspects of this AD. We will
consider all comments received by the closing date and may amend this
AD because of those comments.
We will post all comments we receive, without change, to <a href="http://www.regulations.gov">http://www.regulations.gov</a>, including any personal information you provide. We
will also post a report summarizing each substantive verbal contact we
receive about this AD.
Costs of Compliance
We estimate that this AD affects 300 airplanes.
We estimate the following costs to comply with this AD:
[[Page 2441]]
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Action Labor cost Parts cost product operators
----------------------------------------------------------------------------------------------------------------
Inspection of the elevator bob- 1 work-hour x $85 Not applicable.............. $85 $25,500
weight and attaching linkage. per hour = $85.
----------------------------------------------------------------------------------------------------------------
The on-condition costs for any corrective action that may be
necessary based on the above inspection would vary from airplane to
airplane, and we have no way of determining that cost.
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
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 DOT Regulatory Policies and
Procedures (44 FR 11034, February 26, 1979),
(3) Will not affect intrastate aviation in Alaska, and
(4) Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of 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
0
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
0
2. The FAA amends Sec. 39.13 by adding the following new airworthiness
directive (AD):
2011-27-51 Hawker Beechcraft Corporation: Amendment 39-16915 ;
Docket No. FAA-2012-0014; Directorate Identifier 2011-CE-044-AD.
(a) Effective Date
This AD is effective January 18, 2012, to all persons except
those persons to whom it was made immediately effective by Emergency
AD 2011-27-51, issued on December 23, 2011, which contained the
requirements of this amendment.
(b) Affected ADs
None.
(c) Applicability
This AD applies to the following Hawker Beechcraft Corporation
airplanes, certificated in any category:
------------------------------------------------------------------------
Models Serial Nos.
------------------------------------------------------------------------
(1) 1900.............................. UA-3.
(2) 1900C............................. UB-1 through UB-74 and UC-1
through UC-174.
(3) 1900C (Military).................. UD-1 through UD-6.
(4) 1900D............................. UE-1 through UE-439.
------------------------------------------------------------------------
(d) Subject
Joint Aircraft System Component (JASC)/Air Transport Association
(ATA) of America Code 27, Flight Controls.
(e) Unsafe Condition
This AD was prompted by reports of the elevator bob-weight
(stabilizer weight) traveling past its stop bolt, which allowed the
attaching linkage to move over-center. We are issuing this AD to
detect and correct conditions that could result in reduced nose down
elevator control and loss of control of the airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Inspections
Within the next 10 hours time-in-service after January 18, 2012
(the effective date of this AD), inspect the elevator bob-weight
installation for the following conditions. Use Hawker Beechcraft
Corporation Safety Communiqu[eacute] <greek-i>321, dated December
2011.
Note: The term ``nose down'' corresponds to the airplane nose
down, down elevator, and control column forward position as used in
this AD and Hawker Beechcraft Corporation Safety Communiqu[eacute]
<greek-i>321, dated December 2011.
(1) The correct positioning of the elevator control column link
assembly, (part number (P/N) 101-524112-1 (1900/1900C) or P/N 101-
524112-5 (1900D)). With the elevator control column in the full nose
down position (control column forward), the link must form an angle
between the link attachment point at the control column and the bell
crank pivot point as shown in the Hawker Beechcraft Corporation
Safety Communiqu[eacute] photo labeled ``Correct Link Orientation.''
The link should be trailing aft from the control column assembly.
(2) The clearance of the bob-weight stop bolt. With the elevator
control column in the full nose down position (control column
forward), the stabilizer weight stop bolt must have positive
clearance with the face of the stabilizer weight.
(3) The condition of the bob-weight and alignment with the stop
bolt. Inspect for evidence of scraping along either side of the
weight by the stop bolt. With side pressure applied by hand to the
stabilizer weight, no part of the stop bolt should protrude beyond
the face of the stabilizer weight on either edge.
(4) The condition of the bob-weight support bracket. Inspect for
evidence of damage or deformation by contact with the weight
assembly.
(h) Corrective Actions
If any discrepancies are found in the inspections required in
paragraph (g) of this AD, before further flight, do the following:
(1) Contact Hawker Beechcraft Corporation Technical Support by
telephone at (800) 429-5372 or (316) 676-3140 to obtain FAA-approved
repair or replacement instructions.
(2) Incorporate the repair or replacement specified in the FAA-
approved instructions.
(i) Alternative Methods of Compliance (AMOCs)
(1) The Manager, Wichita Aircraft Certification Office (ACO),
FAA, has the authority to approve AMOCs for this AD, if
[[Page 2442]]
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 ACO, send it to the
attention of the person identified in the Related Information
section of this AD.
(2) Before using any approved AMOC, notify your appropriate
principal inspector, or lacking a principal inspector, the manager
of the local flight standards district office/certificate holding
district office.
(j) Related Information
For more information about this AD, contact one of the
following:
(i) Paul DeVore, Aerospace Engineer, Wichita ACO, FAA, 1801
Airport Road, Room 100, Wichita, Kansas 67209; telephone: (316) 946-
4142; fax: (316) 946-4107; email: <a href="/cdn-cgi/l/email-protection#92e2f3e7febcf6f7e4fde0f7d2f4f3f3bcf5fde4"><span class="__cf_email__" data-cfemail="502031253c7e3435263f2235103631317e373f26">[email protected]</span></a>; or
(ii) Don Ristow, Aerospace Engineer, Wichita ACO, FAA, 1801
Airport Road, Room 100, Wichita, Kansas 67209; telephone: (316) 946-
4120; fax: (316) 946-4107; email: <a href="/cdn-cgi/l/email-protection#c5a1aaaba4a9a1ebb7acb6b1aab285a3a4a4eba2aab3"><span class="__cf_email__" data-cfemail="fc9893929d9098d28e958f88938bbc9a9d9dd29b938a">[email protected]</span></a>.
(k) Material Incorporated by Reference
(1) You must use Hawker Beechcraft Corporation Safety
Communiqu[eacute] <greek-i>321, dated December 2011, to do the
actions required by this AD, unless the AD specifies otherwise. The
Safety Communiqu[eacute] <greek-i>321 references Hawker Beechcraft
Corporation Mandatory Service Bulletin 27-3739, but that service
bulletin is not required to do the actions of this AD. The Director
of the Federal Register approved the incorporation by reference
(IBR) under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) For service information identified in this AD, contact
Hawker Beechcraft Corporation at P.O. Box 85, Wichita, Kansas 67201-
0085; telephone: (800) 429-5372 or (316) 676-3140; Internet: <a href="http://pubs.hawkerbeechcraft.com">http://pubs.hawkerbeechcraft.com</a>.
(3) You may review copies of the service information at the FAA,
Small Airplane Directorate, 901 Locust, Kansas City, Missouri 64106.
For information on the availability of this material at the FAA,
call (816) 329-4148.
(4) You may also review copies of the service information that
is incorporated by reference 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: <a href="http://www.archives.gov/federal-register/cfr/ibr_locations.html">http://www.archives.gov/federal-register/cfr/ibr_locations.html</a>.
Issued in Kansas City, Missouri, on January 6, 2012.
Earl Lawrence,
Manager, Small Airplane Directorate, Aircraft Certification Service.
[FR Doc. 2012-604 Filed 1-17-12; 8:45 am]
BILLING CODE 4910-13-P
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.