# J;mvkel' 

# 'i?eechcraft MANDATORY 

# SERVICE BULLETIN

TITLE : FLIGHT CONTROLS -INSPECTION 

### I REPLACEMENT OF PITCH TRIM ACTUATOR 

### 1. Planning Information A. Effectivity ( 1) Airplanes Model400 , Beechjet , Serial RJ-1 through RJ-65 ; Model 400A . Beechjet , Serials RK-1 through RK-353 ; Model 400A , Beechjet (Hawker 400XP) , Serials RK-354 through RK-604 : Mode i 400T (T-1 A) , Beechjet , Serials TT-1 through TT-180; Modei400T {TX), Beechjet , Serials TX - 1 th rough TX-13 . 

### If you are no longe r i n possession of the a i rplane , please forward this information to the present owner. (2) Spares Refer to Table 1 (commercial) and Table 2 (military) of this Service Bullet i n . 

## B

. Reason

This Service Bulletin is be ing i ssued in response to a report of an unanticipated operational disrupti on due to mechanical feedback from the pitch trim actuator (PTA) to the pilot during flight. Upon inspection, the PTA exh i bited accelerated thread wear on the ACME nut that mates with the jackscrew. The supplier has i dentified units to be pre -emptively overhauled .



### l~~~~~~iu~ **~:~Ja'ff~~c~!·~~ s::~c:~rry%**  **ur~;! ~~:~b~~**  **10**



### :~~ **0~~~~** export control reqwremcnts , contact tt\e Comme.tce Oep.artmcnr.s

**aure~u** of E:{port AdmtnJstr.tliOI'l at http /Mww t>•S dOC gov Hawker 8eec:haatt Corporat1on tHBC} tssucs Sef"'.Ace tnforma! i oo fOf' the benefit of o-..,mr$

**~nd** f1xcd base operators 10 the form ot !'>No

**daz.~s** of Sct"v1te

**81Jifcbn~** The 1ir'l dass , Mandotory SerVIce Ouffetm) {ted border) •ntJudes dtange5 , mspectlon and mOdJ flcatiOilS th<U could aNect safely or crashwor1hme$$ HOC also >Ssucs Se rvtce Bulel•n$ w11h no rod border wfl•CI1 are des.gnated as t>1ther recommended or op1tonaltn the compltance $Cebon w rth 1n the bulletin tn tne case of tecommooded SeMGe

**B~~!!e11f'IS**

**,** HSC

**f~!s.** l.he changes , **mO(M~tioos**

**. rrnp~ovemen1s**  Of 1nspechons WJII ooner1 t the owner/operator

**a1~d** a JthotJ gh h1ghly recommended Recommcndea Servte(!' Bulre'bns.

**~1e** not a:ms,dered mandaiOf)' af the lime of •ssuance In the case of Oplional

**Sern~** Butret1ns. compl.I.!U\Ce y.nth the ehal'\ges. , modifications , tmpt'OIIements or mspect1ons is at the ownefloperator's d•scrctJon Issued : March . 2012 Ooth claues

**<:~re** available 011 the web at hUJ) llpubs hawketbe-td\tfaft com and malfeG to (o) Owners of reeo<d on the FAA Airaan RC9 ••tratoo n Braneh

**L~>t** 3nd tile HBC Safely of F oght Information (SOFt) Uot (D) ThOse

**h;~VJng** a pubfJeahons subsaiPttOn

**lnformat>o<~** on Safely of Fl19hl InformatiOn iSOFil or suDscript1on c.an be oblained

**throug~** the Hawker Oee-chaaft CorporatiOO TectuUcaJ Manual Otsln.Dtltlon Center (TMOC) As Mandatory

**Serv~ce** Bulletins aod Se.MCe Bulletms are issued . the SeMce 8ullerm Master l rnfux wdl be

**upt;'l.~!ed** and avallable 011hnc at http

**//pubs a-M<e:~chuan**  **eom** V\.'a.rranty w1J1

**~** aiJowed only when s.peofc.ally dCflrlCd U1 the SefVICC Bulletin and 1n
**accorda~** With HOC Warranty PoliC)' Unless othef'NISC desl{)nated , HSC Mandatory Serv1ce Bullcbns , Sctvice Gu-llebn.s and HBC k:JtS itre apnroved for •lSlallatJCn on HBC

**a:ir~:sncs** ' " ong.nal ot HBC

**mo <hf~ed**  conhgurutions only HBC Mandat?fY Service B ulletins , SeMCe Bulletins and Krts may not be compatible wtth owptane s mo«Jrhed by STC ,nstan.. 1 ttons or mOOfiedhOfl$ other tt'la.n HBC approved ktls 

# 58 27-4100 1 of 7

# ];IIWictw <Meechcraft MANDATORY 

# SERVICE BULLETIN C. Description This Service Bulletin provides instructions to conduct a review of the airplane 's maintenance records to determine if the installed PTA is suspect for accelerated wear of the ACME nut component. Affected PTA serial and part numbers are listed in Table 1 (commercial airplanes) and Table 2 (military airplanes) . If determination cannot be made based on the maintenance records , a visual inspection of the installed PTA dataplate is necessary. If the installed PTA serial number is identified in Table 

### 1 or Table 

### 2 , the PTA is replaced with an overhauled or serviceable assembly. D. Compliance (1) Civil Airplanes An Airworthiness Directive will be requested on the matter covered by this Service Bulletin . Hawker Beechcraft Corporation considers this to be a Mandatory Service Bulletin . It must be accomplished at the next scheduled inspection , with i n 200 flight hours , or six (6) months from issuance of this Service Bulletin , whichever occurs first. (2) Military A irplanes For compliance information on military airplanes affected by this Service Bulletin , contact the appropriate headquarters . E. Approval The engineeri ng data contained in this Service Bulletin is FAA approved . This modification is class ified Minor per FAA Order 8110 . 52 . Prior to accomplishment , owners/operators of airplanes registered in countries other than the United States shall consult with their local Aviation Regulatory Authority. 

### F. Manpower The following information is for planning purposes only : NOTE No warranty coverage will be allowed for the i nspection portions of this Service Bulletin . Estimated man-hours for removal and replacement of the PTA : 10 .0 hours Suggested number of techn icians : 1 The above is an estimate based on experienced , properly equipped techn i cians complying with this Service Bulletin . G. Weight and Balance No change . 

### II is the responsibility of th e owne r/operator to maintain comp liance with the applicable Airworthiness Regulations .
Issued : March . 2012 

# SB 27-4100 2 of?

# J"7mvkel' 

# 'i?eechcraft

H . Electrical Load Data No change . 

# SERVICE BULLETIN

I. 

### Software Accomplishment Summary Not applicable . 

### J. References 

# MANDATORY

Beechjet Model 400/400A (Hawker 400XP) Ma i ntenance Manual (MM) , PIN 128-590001-9 , Rev ision C23 or subsequent , Chapter 27 -40-00 ; T- 1A Aircraft Technical Manual Job Guide , P/N TO 1T-1A-2-27JG-40-1 ; T-400 Aircraft Techn ica l Manual Job Guide , PIN TOT 400-2-27JG-40- 1 . K. Publications Affected None . 

### L. Interchangeability of Parts Not appl i cable . M . Warranty Credit ( 1 ) Civil Airplanes Warranty credi t for labor and parts to the extent noted under MANPOWER and MATERIAL will be allowed on all affected ai rplanes with the suspect PTA serial numbers listed i n Table 1 of this Service Bulleti n . C lai ms for compliance with this Service Bulletin are to be filed as a W4-type cla i m against SB 27-4100 . Warranty coverage offered in this Service Bulletin will expire s ix (6) months from the last day of the month this Service Bulleti n i s issued . After this date , the owner/operator assumes the responsibil ity for compl i ance cost. Hawker Beechcraft Corporation (HBC) reserves the right to void continued warranty coverage i n the area affected by this Service Bulletin unti l the date the Service Bulletin is accompl ished by a Hawker Beechcraft Services (HBS) facil ity. The owner/operator must contact HBS to schedu le this Service Bulletin work to be accomplished . HBS wi ll submit the appropriate paperwo rk directly to the HBC Warranty Department for warranty consideration . Hawker Beechcraft Corporation l iab ility shall be lim ited to the remaining prorated l ife of the affected part , based on an 1,800-hour Ti me Between Overhau l (TBO) . For examp le , if the affected part has 1 ,350 hours based on an 1,800-hour TBO , HBC wi ll provide 25% of the cost of replacing the part . Th e re moved suspect PTA assemb li es SHALL be red-tagged and returned to HBC at the followin g address i n order to receive warranty cons ideration : Hawker Beechcraft Corporation Attn: Warranty Hold Area 370 N . Webb Rd ., East Dock , Bldg 66 Wichita , KS 67206 After the Service Bu ll etin has been accomplished , a wa rranty clai m must be subm itted to HBC with i n 60 days of the Service Bulleti n comp letion date . I ss ued : March , 2012 

# SB 27-4100 3 

### of7

# ];IIWkBI' 

# 1?eechcraft MANDATORY 

# SERVICE BULLETIN (2) Military Airplanes For information on PTAs installed on military airplanes affected by this Service Bulletin , refer to Table 2 and contact the appropriate headquarters . 

### 2. Materiallnformation A. Materials - Price and Availability Contact information : Hawker Beechcraft Parts & Distribution (HBP&D) 10511 East Centra l 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 The following parts requ i red for accomplishment of this Service Bulletin may be ordered through a Hawker Beechcraft Authorized Service Center or HBP&D : Part Number Description Quantity Per Airplane 45AS61 023-143 OVH (commercial) Actuator - Pitch Trim 1 OR 132-380000-13 (military) Hawker Beechcraft Corporation expressly reserves the right to supersede , cancel and/or declare obsolete , witho ut prior notice , any parts or publications that may be referenced i n this Service Bulletin . D. Spares P/N 45AS61023- 1 43 (commercial) or PIN 132-380000-13 (military). E. 

### Reidentified Parts Pitch trim actuators reworked per this Service Bulletin will have suffix " SB-27 -1" added to the existin g serial number field on the dataplate . 

### F. Tooling -Price and Availability Not applicable . Issued : March. 2012 

# SB 27-4100 4 of 

### 7

# MA N DATORY 

# SERVICE BULLETIN 3. Accomplishment Instructions This Service Bulleti n shall be accomp l ished as follows :



### A . Airplane NOTE Should any difficulty be encountered in accomplishing this Service Bulletin , contact Hawker Beechcraft Corporation at 1-800-429-5372 or 316-676-3140 or contact appropriate headquarters for military airplanes . 

# I WARNING 

# I 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 other 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. ( 1 ) Determine if the installed PTA is suspect for acce l erated wear of the ACME nut component per the following applicable steps : (a) Review the a i rplane 's ma i ntenance records 

### for affected PTA part and serial numbers as l isted in Table 

### 1 (commercial) or Tab le 

### .2 (m i litary) of this Service Bulletin . ( i) If the PTA serial numbers match those listed i n Table 1 

### or Table 

### .2, the PTA should be rep l aced with an overhauled or serv iceable assembly. Proceed to Step 

### (.2) . (ii ) If PTA serial numbers are not listed in Table 1 or Table 

### .2 , no further act ion i s needed . Proceed to Step (9 ) . (b) If a determination cannot be made th rough records research , perform a visual inspection of t he installed PT A . Access the PTA and view the component dataplate for applicable part and seri al numbers l isted i n Table 1 or Table 2 . Refer to PITCH TRIM UPPER FORWARD ACCESS PANEL ( BULLET) REMOVAL in MM , Chapter 27-40-00 (commercia l ) o r appropri ate J ob Guide ( m i l itary) . ( i) If the PTA seria l numbers m atc h th ose listed in Table 1 or T able 2 , th e PTA s h ould be rep laced w ith an overhauled or servicea b le assembly. Proceed to Step (2) . (i i) If PTA seria l numbers a re n ot listed i n Tab l e 1 or T ab le 

### .2 , no furthe r action is n eeded . Proceed to Step (8) .

I ssued : March , 2012 

# SB 27-41 00 5 of?

# ~VIIWke 

# 1?eechcraft 

# SERVICE BULLETIN

**-- ··-·**  **~-~**... HBC Part Number

45AS61 023-143 45AS61 023-143 45AS61023-143 45AS61 023-143 45AS61023-143 45AS61023-143 45AS61023 ·1 43 45AS61 023-143 45AS6 1 023-143 45AS61 023 - 143 45AS61023-143 45AS61023-143 1--- 45AS61 023 - 14 3 45AS61023-143 45AS61 023-143 45AS61023-143 45AS61023-143 45AS61023-143 45AS61023-143 45AS61023-143 45AS61 023-143

HBC Part Number

132- 380000 - 13 132-380000- 13 132-380000-13 132-3 80000 -1 3 132-380000-13 '------ Issued : March . 2012 Table 1 (Commercial) Model 400/400A (Hawker 400XP) Supplier Part Number AA-45-51M11 AA-45-51M11 AA-45 -51M11 AA-45-51M11 AA-45-51M11 AA-45-51M11 AA-45-51 M 11 AA-45-51M11 AA-45-51M11 AA-45-51M11 AA-45-51 M 11 AA-45-51M11 AA-45 - 51 M 11 AA-45-51M11 AA-45-51M11 AA-45-5 1 M11 AA-45-51M11 AA-45-51 M11 AA-45-51 M 11 AA-45-51M11 AA-45-51 M 11 Table 2 (Military) Model 400T (TT/TX) Supplier Part Number AA-45-51 M12 AA-45-51 M 12 AA-45-51 M12 AA-45 -51M12 AA-45-51 M 12 

# MANDATORY

Serial Number 10 11 22 33 000402 000411 910906 920105 920503 921009 940309 940402 961002 970609 990908 67637015 68372010

ET0041 ET0056 ET0066 ET0072

Serial Number 931101 950603 951104 960102 961202 

# SB 27-4100 6 

### of 7

# .-~'711WkBI' 

# 'Deechcraft 

# MANDATORY 

# SERVICE BULLETIN (2) Remove all power from the airplane and disconnect the battery. Display warning notices prohibiting reconnection of airplane electrical power. (3) Remove the pitch trim actuator from the airplane. Refer to PITCH TRIM ACTUATOR REMOVAL procedure i n MM . Chapter 27-40-00 (commercial) or appropriate Job Guide (military) . (4) Red-tag and return suspect PTAs to the address listed i n Step 1. M . Warranty Credit (5) Upon receipt of the overhauled PTA , install the unit into the airplane. Refer to PITCH TRIM ACTUATOR INSTALLATION procedure i n MM , Chapter 27-40-00 (commercial) or appropriate Job Guide (military) . (6) Reconnect the ai rplane battery, remove warning notices . and restore power. (7) Perform PITCH TRIM FUNCTIONAL TEST. Refer to MM , Chapter 27-40-00 (commercial) or appropriate Job Gu ide (military) . (8) Perform the PITCH TRIM UPPER FORWARD ACCESS PANEL (BULLET) INSTALLATION procedure in MM . Chapter 27-40 -00 (commercial) or appropriate Job Guide (military). (9) Ensure all work areas are clean and clear of tools and miscellaneous items of equipment (1 0) Return airplane to service . 

### B. Spares Red-tag and return suspect PTAs to the address listed in Step 1 . M . Warranty Cred it C . Record of Compliance 

### Upon completion of this Service Bulletin , make an appropriate maintenance record entry .

Issued : March , 2012 

# SB 27-4100 7 of 7