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1 of 8
SERVICE BULLETIN
MANDATORY
SB 55-4114Issued: August, 2012
The export of these commodities, technology or software are subject to the U.S. Export Administration Regulations. Diversion contrary to U.S. law is prohibited. For guidance on export control requirements, contact the Commerce Department's Bureau of Export Administration at http://www.bis.doc.gov.
Hawker Beechcraft Corporation (HBC) issues Service Information for the benefit of owners and fixed base operators in the form of two classes of Service Bulletins. The first class, Mandatory Service Bulletins (red border) includes changes, inspection and modifications that could affect safety or crashworthiness. HBC also issues Service Bulletins with no red border which are designated as either recommended or optional in the compliance section within the bulletin. In the case of recommended Service Bulletins, HBC feels the changes, modifications, improvements or inspections will benefit the owner/operator and although highly recommended, Recommended Service Bulletins are not considered mandatory at the time of issuance. In the case of Optional Service Bulletins, compliance with the changes, modifications, improvements or inspections is at the owner/operator's discretion.
Both classes are available on the web at http://pubs.hawkerbeechcraft.com and mailed to:
(a) Owners of record on the FAA Aircraft Registration Branch List and the HBC Safety of Flight Information (SOFI) List.
(b) Those having a publications subscription.
Information on Safety of Flight Information (SOFI) or subscription can be obtained through the Hawker Beechcraft Corporation Technical Manual Distribution Center (TMDC). As Mandatory Service Bulletins and Service Bulleti ns are issued, the Service Bulletin Master Index will be updated and available online at http://pubs.hawkerbeechcraft.com. Warranty will be allowed only when specifically defined in the Service Bulletin and in accordance with HBC Warranty Policy.
Unless otherwise designated, HBC Mandatory Service Bulletins, Service Bulletins and HBC Kits are approved for installation on HBC airplanes in original or HBC modified configurations only. HBC Mandatory Service Bulletins, Service Bulletins and Kits may not be compatible with airplanes modified by STC installations or modifications other than HBC approved kits.
1. Planning Information A. Effectivity
(1) Airplanes
(a) Civil Model 1900 Airliner, Serial UA-3;
Model 1900C Airliner, Serials UB-1 through UB-74; UC-1 through UC-174;
Model 1900D Airliner, Serials UE-1 through UE-439.
(b) Military Model 1900C (C-12J) Airliner, Serials UD-1 through UD-6.
If you are no longer in possession of the airplane, please forward this information to the present owner.
(2) Spares None.
B. Reason This Service Bulletin is being issued because Hawk er Beechcraft Corporation (HBC) has determined that potential exists for development of crack(s) in the forward spar cap angles and upper hat sections on defined airplanes. HBC has received reports of cracks in this area from two different operators.
C. Description This Service Bulletin provides instru ctions for visual inspec tion of the forward vertical spar to horizontal stabilizer attach point angles for any crack(s) in the P/N 101-640011-3/-4 spar cap angles and visual inspection of the P/N 114-640000-25/-26 hat se ction for crack(s). If crack(s) are found, contact Hawker Beechcraft Airliner Customer Support Group as defined in ACCOMPLISHMENT INSTRUCTIONS.
TITLE: STABILIZERS - INSPECTION OF FORWARD SPAR ATTACH ANGLES
SERVICE BULLETIN Issued: August, 2012
SB 55-4114 2 of 8
MANDATORY
D. Compliance An Airworthiness Directive will be requested on the matter covered by this Service Bulletin.
(1) Civil Airplanes Hawker Beechcraft Corporation considers this to be a mandatory inspection. It must be accomplished at the next "I" Inspection Check Procedure or 600 flight hours from receipt of this Service Bulletin, whichever occurs first.
(2) Military Airplanes For compliance information on m ilitary airplanes affected by this Service Bulletin, contact the appropriate headquarters.
E. Approval The engineering data contained in this Service Bulletin is FAA approved.
Prior to accomplishment, owners/operators of airplanes registered in countries other than the United States shall consult with their local Aviation Regulatory Authority.
This Service Bulletin is for inspection only and there is no change to Type Design.
F. Manpower The following information is for planning purposes only:
Estimated man-hours for inspection: 1.5 hours Suggested number of personnel for inspection: 1 The above is an estimate based on experienced, properly equipped personnel complying with this Service Bulletin. Occasionally, after work has started, conditions may be found that could result in additional manhours.
G. Weight and Balance Not applicable.
H. Electrical Load Data No change.
I. Software Accomp lishment Summary Not applicable.
J. References Appropriate chapter of the applicable model manual:
(1) Civil Airplanes Hawker Beechcraft Corporation Model 1900/1900C Airliner Maintenance Manual (MM), P/N 114-590021-7C7 or subsequent revision, Chapter 6-50;
SERVICE BULLETIN
Issued: August, 2012 3 of 8 SB 55-4114
MANDATORY
Hawker Beechcraft Corporation Model 1900D Airliner Maintenance Manual (MM), P/N 129-590000- 15B7 or subsequent revision, Chapter 6-50;
Hawker Beechcraft Corporation Model 1900/1900C Airliner Structural Inspection Manual (SIM), P/N 98-30937G or subsequent revision, “I” Check;
Hawker Beechcraft Corporation Model 1900D Airliner Structural Inspection Manual (SIM), P/N 129- 590000-65E3 or subsequent revision, “I” Check.
(2) Military Airplanes Hawker Beechcraft Corporation Model 1900/1900C Airliner Maintenance Manual (MM), P/N 114-590021-7C7 or subsequent revision, Chapter 6-50;
Hawker Beechcraft Corporation Model 1900C(C-12J) Maintenance Manual Supplement, P/N 98-31326 or subsequent revision, Chapter 6-50.
K. Publications Affected It is recommended that a note “See Service Bulletin 55-4114” be made in the appropriate chapter of the applicable Maintenance Manual, Structural Inspection Manual, and Maintenance Manual Supplements.
L. Interchangeability of Parts Not applicable.
M. Warranty Credit None.
2. Material Information A. Materials - Price and Availability Contact information:
Hawker Beechcraft Parts & Distribution 10511 East Central Avenue Wichita, KS 67206 USA Phone: 316-676-3100 or 1-888-727-4344 Fax: 316-676-3222 or 316-676-3327 E-mail: HBC_Parts@hawkerbeechcraft.com B. Industry Support Not applicable.
C. Airplanes
(1) The following parts may be required for accomplis hment of this Service Bulletin and may be ordered through a Hawker Beechcraft Authorized Service Center or HBP&D or obtained locally:
SERVICE BULLETIN Issued: August, 2012
SB 55-4114 4 of 8
MANDATORY
Hawker Beechcraft Corporation expressly reserves the right to supersede, cancel and/or declare obsolete, without prior notice, any parts or publications that may be referenced in this Service Bulletin.
D. Spares Not applicable.
E. Reidentified Parts None.
F. Tooling - Price and Availability Not applicable.
3. Accomplishment Instructions This Service Bulletin shall be accomplished as follows:
NOTE Should any difficulty be encountered in accomplishing this Service Bulletin, contact Hawker Beechcraft Corporation at 1-800-429-5372 or 316-676-3140.
Material Item Number (Ref. MM Chapter 20) Description Quantity Per Airplane A-A-1491, CCC-C-440 or equivalent Cotton Cheesecloth As Required A-A-53513 or P/N 187 7711 [1] Gloves, Polyethylene, Industrial, Solvent Handling As Required DOD-R-003081 Rag, Lint-Free As Required TT-I-735 or MIL-I-10428 Isopropyl Alcohol As Required TT-N-95, Type II Solvent, Aliphatic Naphtha As Required MPK [2] Solvent, Methyl Propy l Ketone (MPK) As Required ASTM D329 Solvent, Acetone As Required [1] Obtain from Eastman Kodak Company, 343 State Street, Rochester, NY 14650, Website: www.kodak.com, 1-800-242-2424 or 585-724-4000.
[2] Obtain from Barton Solvents, Inc., 201 South Cedar, Valley Center, KS 67147, Website: www.barsol.com , 316-755-2305, FAX: 316-755-2323; or Eastman Chemical Company, Inc., P. O. Box 511, Kingsport, TN 37662, Website: www.eastman.com, 1-800-EASTMAN (1-800-327-8626) or 423-229-2000, FAX: 423-229-2145.
SERVICE BULLETIN
Issued: August, 2012 5 of 8 SB 55-4114
MANDATORY
Observe all Warnings and Cautions contained in the airplane manuals referenced in this Service Bulletin.
Whenever any part of this system is dismantled, adjusted, repaired or renewed, detailed investigation must be made on completion to make sure that distortion, tools, rags or any othe r loose articles or foreign matter that could impede the free movement and safe operation of the system are not present, and that the systems and installations in the work area are clean.
A. Airplane
(1) Remove all power from the airplane and disconnect the battery. Display warning notices prohibiting reconnection of airplane electrical power.
Use care to ensure damage to airplane components and structure does not occur during positioning and movement of maintenance stand.
(2) Utilize a maintenance stand to gain access to the up per forward vertical stabilizer and horizontal stabilizer, as required to facilitate accomplishment of inspection pr ocedures through access panels.
Remove attachment screws securing access panels 35 (left and right, for Model 1900 and 1900C airplanes) or access panels 331GL and 331GR (for Model 1900D airplanes) to gain access to the spar cap angle inspection area. Refer to the applicable airplane Maintenance Manual (MM), Chapter 6-50 and Figures 1 and 2. Retain attachment hardware.
(3) Remove access panel assembly 16 (for Model 1900 and 1900C airplanes) or access panel assembly 332BTC (for Model 1900D airplanes) to gain access to the upper inspection area. Retain attachment hardware.
Solvents are flammable and toxic to ski n, eyes, and respiratory tract. Skin and eye protection is required. Avoid repeated or prolonged contact. Keep away from flames or sources of heat. Use in a well-ventilated area or respiratory protection equipment may be required.
NOTE Oil film, dirt and grime can mask areas co ntaining cracks. It may be necessary to clean components in inspection areas prior to borescope inspection using clean cotton cheesecloth or a clean shop rag moistened with solvent.
(4) Using a borescope, conduct an inspection of the area shown in Figure 1, Detail C for crack(s) in the P/N 101-640011-3/-4 spar cap angles. Using a flas hlight and mirror, visually inspect the P/N 114- 640000-25/-26 hat sections for cracks as shown in Figure 2, Detail C and the applicable airplane Structural Inspection Manual, “I” Check procedures.
SERVICE BULLETIN Issued: August, 2012
SB 55-4114 6 of 8
MANDATORY
(5) If crack(s) are found in any P/N 101-640011-3 /-4 spar angles or the P/N 114-640000-25/-26 hat sections, contact Hawker Beechcraft Airline Cu stomer Support Group at 1-800-429-5372 or 316- 676-3140 for disposition.
(6) If inspections of the P/N 101-640011-3/-4 spar cap angles and P/N 114-640000-25/-26 hat sections reveal no crack(s), proceed with access panel installation.
(7) Install access panels 35 (L and R) and access panel assembly 16 (for Model 1900 and 1900C airplanes) or access panels 331GL and 331GR, and panel assembly 332BTC (for Model 1900D airplanes) utilizing retained attachment hardware. Refer to MM, Chapter 6-50.
(8) Reconnect the airplane battery, remo ve warning notices, and restore power.
(9) Ensure all work areas are clean and clear of tools and miscellaneous items of equipment.
(10) Return airplane to service.
B. Spares Not applicable.
C. Record of Compliance Upon completion of this Service Bulletin, make an appropriate maintenance record entry.
SERVICE BULLETIN
Issued: August, 2012 7 of 8 SB 55-4114
MANDATORY
B411401.AI FWD
HAT SECTION (SKIN REMOVED FOR CLARITY)
HAT SECTION
EXAMPLE OF CRACK IN P/N 101-640011-3
SPAR CAP ANGLE
INSPECTION AREA
VERTICAL
STABILIZER
FWD SPAR FWD
DETAIL A
DETAIL B
DETAIL C C ACCESS PANEL 35L (1900, 1900C, SHOWN) 35R (OPPOSITE) OR ACCESS PANEL 331GL (1900D, SHOWN) 331GR (OPPOSITE) A B Inspection of Vertical Stabilizer Forward Spar Cap Angle and Hat Section for Cracks Figure 1
SERVICE BULLETIN Issued: August, 2012
SB 55-4114 8 of 8
MANDATORY
B411402.AI C P/N 114-640000-25
LEFT HAT SECTION P/N 114-640000-26
RIGHT HAT SECTION (HORIZONTAL ATTACH POINT) RIB ANGLE P/N 101-640011-4 SPAR CAP ANGLE AREA OF INTERESTP/N 101-640011-3 SPAR CAP ANGLE
AREA OF INTEREST ATTACH
FITTING ATTACH
FITTING
DETAIL B
DETAIL C
ACCESS PANEL 16 (1900, 1900C,) (COVER ASSY) OR
ACCESS PANEL 332BTC (1900D) (COVER ASSY) SCREW B A
DETAIL A Inspection of Vertical Stabilizer Forward Spar Cap Angle and Hat Section for Cracks Figure 2