# 0 Hamilton Sundstrand
A UnitedTechnologies Company MAINTENANCE MANUAL 14RF-9
Information Subjectto ExportControl Laws 

### P5186

The technical data in this document (orfile) Is controlled forexport underthe ExportAdministration Regulations (EAR), 15 CFR Parts 730-774. VIolations ofthese Jaws may be subjectto fines and penalties underthe ExportAdministrationAct EAR ExportClassification: ECCN 9E991 

# VARIABLE PITCH AIRCRAFT PROPELLER
14RF-9 PROPELLER MODEL PART NUMBER 

# 780100

© 1984-1986, 1988, 1994, 1995, 1998, 1999, 2005,2006,2012 Hamilton Sundstrand Corporation PROPRIETARY THIS DOCUMENT AND THE INFORMATION CONTAINED HEREIN ARE THE PROPERTY OF HAMILTON SUNDSTRAND CORPORATION (HSC). RECIPIENT AGREES TO HOLD ALL SUCH INFORMATION IN CONFIDENCE AND AGREES IT SHALL BE USED ONLY FOR RECIPIENT'S INTERNAL PURPOSES TO MAINTAIN RECIPIENT'S EQUIPMENT OR AS MAY OTHERWISE BE PERMITTED IN AN APPLICABLE AGREEMENT BETWEEN RECIPIENTAND HSC. THIS DOCUMENT AND THE INFORMATION CONTAINED HEREIN SHALL NOT BE USED FOR ANY OTHER PURPOSE, INCLUDING THE CREATION, MANUFACTURE, DEVELOPMENT, OR DERIVATION OF ANY REPAIRS, MODIFICATIONS, SPARE PARTS, DESIGN, OR CONFIGURATION CHANGES, OR TO OBTAIN FAA OR ANY OTHER GOVERNMENT OR REGULATORY APPROVAL FOR SAME. RECIPIENT AGREES NOT TO DISCLOSE SUCH INFORMATION TO ANY THIRD PARTY, EXCEPTAS MAY OTHERWISE BE PROVIDED FOR IN AN APPLICABLE AGREEMENT BETWEEN RECIPIENT AND HSC. COPYING OR DISCLOSURE OF THIS DOCUMENT AND THE INFORMATION CONTAINED HEREIN BY ANYONE WITHOUT HSC'S PRIOR WRITTEN PERMISSION IS NOT AUTHORIZED AND MAY RESULT IN CRIMINALAND/OR CIVIL LIABILITY The data inthis documentwere developed onlyto maintain systems and/or parts manufactured by orfor Hamilton Sundstrand orapproved by Hamilton Sundstrand. The data may not be applicable to any other systems and/or parts, regardless oftheir apparent similarityto systems and/or parts manufactured by orfor Hamilton Sundstrand or approved by Hamilton Sundstrand. Do not rely in anyway on data in this documentto maintain orotherwise supportsystems and/orparts thatwere not manufactured by orfor Hamilton Sundstrand orapproved by Hamilton Sundstrand without evidence that the Federal Aviation Administration orother regulatory agency has determined that the data in this document is valid for such use.



## PROPELLER SYSTEM MAINTENANCE MANUAL
AIRWORTHINESS LIMITATIONS· FAA APPROVED REMAINDER OF MANUAL • FAA ACCEPTED

Basic Issue: CAGE Code: 73030 

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# 0 Hamilton Sundstrand
A UnitedTechnologies Company MAINTENANCE MANUAL 14RF-9 

### AIRWORTHINESS LIMITATIONS WARNING: THIS SECTION CONTAINS DESIGN CRITICAL CHARACTERISTICS AND PROCESSES. THESE ARE IDENTIFIED WITH THE SYMBOL >>DCC<<. REFER TO THE INTRODUCTION OF THIS MANUAL FORA COMPLETE EXPLANATION OF DESIGN CRITICAL CHARACTERISTICS.

u1. General 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. Mandatory Inspections A. Major Propeller Inspection (1) Referto the CHECK section ofthe Component Maintenance Manual61-13-04for the instructions on howto do a major propeller inspection. (2) The major inspection intervals are listed in Table AL-1

. It is the responsibility ofthe aircraft operatorto monitorflight hours for each component listed in Table AL-1 and to make sure that no component remains in service beyond the listed inspection interval times or any designated component life limits (3) In addition to the published operating time limits for blades and hubs, the requirement for repetitive Ml ofthese components will be no laterthan seven (7) years (or 84 months) sincethe Date Since Installation (DSI). The DSI will begin upon the initial installation after the most recent Ml or initial installation after production. (4) Propeller blades and hubs must now be subjected to Ml based on published operating time limits forthe component or 7 years from the DSI whichever comes first. Table AL-1. Major Inspection Intervals Inspection Inspection Interval Item Part Number Interval (Calendar (Flight Hours) Time) Propeller Hub 782501-4, 782501-6, 782501-7, 9,000 7 Years 814721-1, 814721-2 Outer Bearing Race * 782674-1 9,000 NotApplicable Inner Bearing Race 782676-1 10,000 Not Applicable (two-piece) Blade and Pin RFC11E1-6A, RFC11M1-6A, 10,000 7 Years Assembly RFC11N1-6A, RFC11U1-6A, RFC11AA1-6A, RFC11E1R6A, RFC11M1R6A, RFC11M1P6A, RFC11N1R6A,RFC11U1R6A, RFC11U1P6A, RFC11AA1P6A, RFC11AA1R6A
se ora1sctosure or m1s aata 1s suo1ect to resmctJons on me**11~e** 1-'a e or tms aocument. g Use ordisclosure ofthis data is subjectto restrictions on the Title Page ofthis document. P5186 

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## I Item 

# Hamilton Sundstrand
A UnitedTechnologies Company MAINTENANCE MANUAL 14RF-9 Table AL-1. Major Inspection Intervals Inspection Part Number Interval (Flight Hours) Inspection Interval (Calendar

Time) ActuatorAssembly 790201-2, 790201-3, 10,000 Not applicable 790201-5, 790201-6, 790201-7, 790201-8 

### * >>DCC<< The outer bearing race must be removed, discarded and replaced at each major inspection interval (see CHECK section ofComponent Maintenance Manual61-13-04). It is permissible to use the propeller hub time to track the outer bearing races total time.

B. Critical Part Inspections (1) 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. (2) Critical Part Inspections accomplished in accordancewith the CHECK section ofthe applicable Component Maintenance Manual, at the 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. (3) It is the responsibility ofthe operator to monitorthe flight hours for each component listed in Table AL-2

.

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# c Hamilton Sundstrand
A UnitedTechnologies Company MAINTENANCE MANUAL 14RF-9 Table AL-2. Propeller Components With Mandatory Inspections
Item Part Number Inspection Interval (Flight Hours) A!;;tygtQr**A§§~mbl~** * 790201-21 -31 -51 -6, Maximum 10,500 hour intervals. -7,-8 Qil**Trgn§f~r Tyb~**  gng**R~tgin~r** * 784525-2 Initial Inspection***within 61000 hours or 3 years afterthe effective date of 790202-11 -2, -3, AD 96-25-20 (February 71 1997)

. 814782-11 -2, -3 Repeat Inspection

- Maximum 101500 hour intervals.**Prog~ll~r** Qgntrgl Unit** (PCU) 782490-71 -12, -24, Initial Inspection*** within 6000 hours

*
**
*** -35, -46 or 3 years afterthe effective date of AD 96-25-20 (February 7, 1997). Repeat Inspection

- Maximum 10,500 hour intervals. Do the inspections for these components in accordance with Component Maintenance Manual61-13-04. Do the inspections for these components in accordance with Component Maintenance Manual61-21-06. Parts manufactured after the effectivity date ofAD 96-25-20 (February 7, 1997) have met the initial inspection requirements (paragraph 2.(a)) by an alternate method of compliance as approved by letterfrom the Manager, FAA Boston Aircraft Certification Office, on June 3, 1999. C. Ballscrew Spline Inspection (1) 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 subjected to the required inspections 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 QHEQK section of chapter 61-22-00 (Propeller Control and Adapter). (2) It is the responsibility ofthe operatorto monitorthe flight hours for the PCU.

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# c Hamilton Sundstrand
A UnitedTechnologies Company MAINTENANCE MANUAL 14RF-9 Table AL-3. Propeller Control Unit Components With Mandatory Inspections
Item Part Number Inspection Interval (Flight Hours) Propeller Control Unit 782490-7, -12 See Airworthiness Directive (PCU) (Without Quill 95-22-12 Damper, and without Secondary Drive Quill) Propeller Control Unit 782490-24 See Airworthiness Directive (PCU) (With Quill Damper, 95-22-12 and without Secondary Drive Quill)
D. PCU Primary Quill Torque Check (1) 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 inspections 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). (2) It is the responsibility ofthe operator to monitorthe flight hours for the PCU.

Table AL-4. Propeller Control Unit Components With Mandatory Inspections
Item Part Number Inspection Interval (Flight Hours) Propeller Control Unit (PCU) 782490-35, -46 See Airworthiness Directive 95-22-12 

### E. Hub Retaining Nut Check (1) Do a hub retaining nuttorque check at an interval less than 500 hours in accordance with the "A" Inspection Checks, CHECK section, chapter 61-10-00. 

### 3. Special Instructions 

### A Ifthere is evidence ofan overspeed, foreign object damage, lightning strike, or overtorque, do the inspection procedures in the CHECK section of chapter 61-10-00 ofthis manual. Complete the appropriate report (Overspeed

- Figure 504, Impact Damage- Figure 505, or Overtorque- Figure 506) 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.

Use ordisclosure of this data Is subjectto restrictions on the Trtle Page ofthis document Use or disclosure ofthis data is subject to restrictions on the Title Page ofthis document. P5186 

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