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A UnitedTechnologies Company MAINTENANCE MANUAL 14SF-5 INFORMATION SUBJECTTO EXPORT CONTROL LAWS Subjecttothe EAR, ECCN 9E991. 

## P5188

This infonnation is subjecttothe export control laws oftheUnited States, specificallyincluding the ExportAdministration Regulations (EAR), 15 C.F.R. Part 730 et. seq. Transfer, retransfer, or disclosure ofthis data by any means to a non-U.S. person (individual or company), whether in the United States or abroad, without any required export license orother approval from the U.S Government is prohibited, including without limitation any diversion to a military end useror use in a military end use application. 

# VARIABLE PITCH AIRCRAFT PROPELLER
MODEL NUMBER: 14SF-5

C1984, 1986,1991, 1994,1995, 1997,1999,2013 Hamilton Sundstrand Corporation PROPRIETARY THIS DOCUMENTAND THE INFORMATION CONTAINED HEREIN ARE THE PROPERTY OF HAMILTON SUNDSTRAND CORPORATION (HSC). RECIPIENTAGREES TO HOLD ALL SUCH INFORMATION IN CONFIDENCE AND AGREES IT SHALL BE USED ONLY FOR RECIPIENTS INTERNAL PURPOSES TO MAINTAIN RECIPIENTS EQUIPMENT OR AS MAY OTHERWISE BE PERMITTED IN AN APPLICABLE AGREEMENT BETWEEN RECIPIENTAND HSC. THIS DOCUMENTAND THE INFORMATION CONTAINED HEREIN SHALL NOT BE USED FOR ANY OTHER PURPOSE, INCLUDING THE CREATION, MANUFACTURE, DEVELOPMENT, OR DERNATION OF ANY REPAIRS, MODIFICATIONS, SPARE PARTS, DESIGN, OR CONFIGURATION CHANGES, OR TO OBTAIN FAA OR ANY OTHER GOVERNMENT OR REGULATORY APPROVAL FOR SAME. RECIPIENTAGREES NOT TO DISCLOSE SUCH INFORMATION TO ANY THIRD PARTY, EXCEPTAS MAY BE OTHERWISE PROVIDED FOR IN AN APPLICABLE AGREEMENT BETWEEN RECIPIENT AND HSC. COPYING OR DISCLOSURE OF THIS DOCUMENTAND THE INFORMATION CONTAINED HEREIN BYANYONE WITHOUT HSC'S PRIOR WRITTEN PERMISSION IS NOTAUTHORIZED AND MAY RESULT IN CRIMINAL AND/OR CIVIL LIABILITY. The data in this documentwere developed onlyto mantain systems and/orparts manufactured by orfor Hamilton Sundstrand orapproved by Hamilton Sundstrand. The data may not be applicable to any othersystems and/or parts, regardless oftheir apparent similarity to systems and/or parts manufactured by orfor Hamilton Sundstrand orapproved by Hamilton Sundstrand. Do not rely in anyway on data in this documentto maintain oroherwise supportsystems and/orpartsthatwere not manufactured by orfor Hamilton Sundstrand orapproved by Hamilton Sundstrand without evidence that the Federal Aviation Administration or other regulatory agency has determined that the data in this document is valid for such use.


## PROPELLER SYSTEM MAINTENANCE MANUAL

AIRWORTHINESS LIMITATIONS SECTION- FAAAPPROVED REMAINDER OF MANUAL
- FAAACCEPTED

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1. General A UnitedTechnologies Company MAINTENANCE MANUAL 14SF-5 

### AIRWORTHINESS LIMITATIONS

A. The Airworthiness Limitations section is FAA approved and specifies maintenance required under§§ 43.16 and 91.403 ofthe Federal Aviation Regulations unless an alternative program has been FAA approved. 

### 2. Major Inspection Intervals A. Refer to the CHECK Section ofComponent Maintenance Manual 61-13-02 for instructions on howto do a Major Inspection (MI). B. The Major Inspection intervals are listed in Table AL-1

. It is the responsibility ofthe operatorto monitorflight hours for each component listed in Table AL-1 and to make sure no component remains in service beyond its listed inspection interval time. C. In addition to the published operating time limits for blades and hubs, the requirementfor repetitive Ml ofthese components will be no laterthan seven (7) years (or 84 months) since the Date Since Installation (DSI). The DSI will begin upon the initial installation afterthe most recent Ml or initial installation after production. D. Propeller blades and hubs must now be subjected to Ml based on published operating time limits for the component or 7 years from the DSI, whichever comes first. Table AL-1. Major Inspection Intervals INSPECTION INSPECTION ITEM PART NUMBER INTERVAL INTERVAL (FLIGHT HOURS) (CALENDAR TIME) Blade and Pin Assembly SFA13G1ROA, 10,000 7 Years SFA13M1ROA, SFA13M1POA, SFA13U1ROA, SFA13U1POA Hub 782701-5, 782701-4 10,000 7 Years Outer Bearing Race* 782301-1 10,000 NotApplicable Inner Bearing Race 782303-1 10,000 NotApplicable (Two-Piece) ActuatorAssembly 790180-2, 790180-3 10,000 Not Applicable 

### *>>DCC<< The outer bearing race must be removed, discarded, and replaced at each inspection interval (see the CHECK Section ofComponent Maintenance Manual 61-13-02). It is permissible to use the propeller hub time to track the total time ofthe outer bearing race.

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3. Critical Part Inspections A United Technologies Company MAINTENANCE MANUAL 14SF-5



### A. The components listed in Table AL-2 require inspection to assure continued airworthiness. Component assemblies must be removed from service and subjected to the required inspections. B. Critical Part Inspections accomplished in accordance with the CHECK section ofthe applicable Component Maintenance Manual, atthe intervals given in Table AL-2, satisfy the requirements ofAirworthiness Directive (AD) 96-25-20 as an alternate method of compliance as approved by letterfrom the manager, FAA Boston Aircraft Certification Office, on June 3, 1999. C. It is the responsibility ofthe operatorto monitorthe flight hours for each component listed in Table AL-2

. Table AL-2. Propeller Components With Mandatory Inspections
ITEM PART NO. INSPECTION INTERVAL (FLIGHT HOURS)**Acty~tor A§§!i!mbl~** * 790180-2, 790180-3 Maximum 10,500 hour intervals Qil Tll!O§f!i!r T!.!b!i!**~od** 814829-1 Initial Inspection*** within Retainer* 782515-1 6000 hours or three years afterthe effective date ofAD 96-25-20 (February 7, 1997) Repeat InspectionMaximum 10,500 hour intervals PrQ!2!i!ll!;!r QQntrQI Unit** (PQ!.!) 782490-6, A6, -11, A11, -18, Initial Inspection***within A18, -29, A29, -40, A40, -51, 6000 hours orthree years A51 afterthe effective date ofAD 96-25-20 (February 7, 1997) Repeat InspectionMaximum 10,500 hour intervals
*Dothe inspections for these components in accordance with Component Maintenance Manual 61-13-02. The tube may be inspected using this Maintenance Manual. ** Do the inspections for these components in accordance with Component Maintenance Manual61-21-07. ***Parts manufactured after the effectivity ofdate ofAD 96-25-20 (February 7, 1997) have met the initial inspection requirement (paragraph 2.(a)) by an alternate method ofcompliance as approved by letter from the manager, FAA Boston Aircraft Certification Office, on June 3, 1999.

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A UnitedTechnologies Company MAINTENANCE MANUAL 14SF-5 

### 4. BallscrewSpline Inspection A. The internal spline ofthe ballscrew in the PCUs listed in Table AL-3 requires inspection to assure continued airworthiness. Component assemblies must be removed from service and be subjected to the required inspections at intervals established in AD 95-22-12. The intervals are based on the time since new or time since last inspection. Do the inspection in accordance with the CHECK section of Chapter 61-22-00 (Propeller Control and Adapter)

. B. It is the responsibility ofthe operatorto monitorthe flight hours for the PCU. Table AL-3. Propeller Control Unit Components With Mandatory Inspections
ITEM PART NUMBER INSPECTION INTERVAL (FLIGHT HOURS) Propeller Control Unit (PCU) 782490-6, A6, -11 ,A11, -18, A18 See Airworthiness Directive (Without Quill Damper, and 95-22-12 without Secondary Drive Quill) Propeller Control Unit (PCU) 782490-29, A29 and PCUs with See Airworthiness Directive (With Quill Damper, and the marking "SB14SF-61-67" on 95-22-12 without Secondary Drive Quill) the Identification Plate 

### 5. PCU Primary Quill Torque Check A. The PCU Part Numbers listed in Table AL-4 are equipped with a secondary drive quill and require an inspection to assure continued airworthiness. Component assemblies must be subjected to the required inspection at intervals established in AD 95-22-12. The intervals are based on the time since new ortime since last inspection

. Do the inspection in accordance with the CHECK section of Chapter 61-22-00 (Propeller Control and Adapter). B. It is the responsibility ofthe operator to monitorthe flight hours forthe PCU. Table AL-4. Propeller Control Unit Components With Mandatory Inspections
ITEM PART NUMBER INSPECTION INTERVAL (FLIGHT HOURS) Propeller Control Unit (PCU) 782490-40, A40, -51, A51 See Airworthiness Directive 95-22-12 

### 6. Special Instructions A. Ifthere is evidence of overspeed, foreign object damage, lightning damage, or overtorque, do the inspection procedures in paragraphs 6. , 7. , 8

., and 9. in Chapter 61- 10-00, CHECK, in this manual. Complete the appropriate form (Figure 502, Figure 504, or Figure 505) and send a copy to the Hamilton Sundstrand address specified on it. Also, if necessary, make sure that a report ofthe incident is provided to the Federal Aviation Administration (FAA) in accordance with FAR 21.3 requirements.

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