### Version 3.0 (5/13 11 3) [4910-13-P] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2013-0262; Directorate Identifier 2013-NE-13-AD] RIN 2120-AA64 Airworthiness Directives; Hamilton Standard Division and Hamilton Sundstrand Corporation Propellers. AGENCY: Federal Aviation Administration (FAA) , DOT . ACTION: Notice ofproposed rulemaking (NPRM). SUMMARY: We propose to adopt a new airworthiness directive (AD) for Hamilton Standard Division model6/5500/F and 24PF and Hamilton Sundstrand Corporation model 14RF, 14SF, 247F, and 568F series propellers. This proposed AD was prompted by the amount of corrosion detected during major inspections (Mis) . This proposed AD would require incorporating inspections , based on a calendar time , into the propeller maintenance schedule. We are proposing this AD to prevent corrosion that could result i 

### propeller failure and loss of airplane control. DATES: We must receive comments on this proposed AD by [INSERT DATE 60 DAYS AFTER DATE OF PUBLICATION IN THE FEDERAL REGISTER]. ADDRESSES: You may send comments , using the procedures found in 14 CFR 11.43 and 11.45 , by any ofthe following methods: • Federal eRulemaking Portal: Go to http ://www. regul ations .gov . Follow the instructions for submitting comments. • Fax: 202-493-2251. • Mail: U.S. Department of Transportation, Docket Operations , M-30 , West Building Ground Floor, Room W12-140 , 1200 New Jersey Avenue SE. , Washington, D 20590.**;;::= ;::..._** **...-f'<""-'-"**Legal concurs . Regards, 

# v Re: ACTION BY: 5/17/13 - 2013-NE-13-AD- Hamilton Sundstarnd Propeller Blade & 

### Hub Corrosion. NPRM - Ver 3.0 

### [J V incent Bennett . ANE -007 , Office of Re g io na l Co un se l to: Bnan Warner 05114120 1 3 05:17PM Cc: Alan Rowe, John Golinski , Jonathan Galvin , Kirk Gustafson , Michael Schwetz

Brian Warner V ince, Please review and p rovide comment 

### I co ... 0511312013 12 :09:49 PM Fro m : To : Cc : Date: Subject: Vince, Brian Warneri ANEIFAA ANE-11 0 , Standards Staff Vincent Bennett!ANEIFAA@FAA , Michael Schwetz/ANEIFAA@FAA , Kirk GustafsoniANEIFAA @ FAA , John GolinskiiANEIFAA@FAA, Jonathan GalviniANEIFAA@FAA, Alan Rowe i ANEIFAA@FAA 0511312013 12 :09 PM ACTION BY : 5117113- 2013-NE-13-AD- Hamilton Sundstarnd Propeller Blade & Hub Co rrosi o n . NPRM - Ver 3.0

Please review and provide comment 

### I concurrence . If possible , please move to the top of your review stack . We're approaching our 45 day limit on this one and I would like to try and make it.

13ne 13n .doc Thanks .. . Brian 

## Brian M. Warner E&PD SAIB I MCAI Coordinator Technical Writer-Editor Engine & Propeller Directorate Standards Staff, ANE-11 0 Phone: 781-238-7169 Fax: 781-238-7199 We value your feedback . Please consider completing the AVS Customer Feedback Form at: http :/ /www.faa .gov/about/office erg/headquarters offices/avs/stakeho lder feedback/air /fie ld/

### Re: Fw: ACTION BY: 4/22/13 - 2013-NE-13-AD - Hamilton Sundstarnd Propeller Blade & 

### Hub Corrosion. NPRM - Ver 2.5 

# 13 Ste p hen Grata . AEA-BOS-A EG-67, Burl ington , MA to: Bnan Warner 05/13/2013 11:09 AM C . Alan Rowe, Jay Turnberg , John Golinski, Jonathan Galvin, Kirk 

### ,c. Gustafson, Michael Schwetz, Paul Donato Hello Brian , The Boston AEG concurs with 2013-NE-13-AD - Hamilton Sundstarnd Propeller Blade 

### & Hub Corrosion . NPRM - Ver 2.5 . Thank you, Steve We welcome your comments . Please click the link below and tell us what you think . http:llwww .faa . govlabout/office_orglheadquarters_officeslavslstakeholder_feedback/afslfieldlsf_aegl Stephen W . Grata Boston Aircraft Evaluation Group Federal Aviation Administration T 781-238-7895 F 781-238-7898 

### I

- - -<>- -(_)- -<>- - -
Brian Warner , All: Please rev iew and provide comment 

### I conc u ... From: Brian Warner/ANE/FAA ANE-11 0, Standards Staff 0511312013 08:35:08 AM
To : Michael Schwetz/ANE/FAA@FAA , Jay Turnberg/ANE/FAA@FAA, Stephen Grota/ANE/FAA@FAA , Cc : Date : Subj ect: All : Kirk Gustafson/ANE/FAA@FAA, John Golinski/ANE/FAA@FAA, Jonathan Galvin/ANE/FAA@FAA , Alan Rowe/ANE/FAA@FAA , Paul Donato/ANE/FAA@FAA 05/13/2013 08:35 AM Fw : ACTION BY: 4/22/13- 2013-NE-13-AD- Hamilton Sundstarnd Propeller Blade & Hub Corrosion . NPRM - Ver 2 .5

Please review and provide comment 

### I concurrence . [attachment "13ne13n . doc" deleted by Stephen GrotaiANEIFAA]
Thanks .... Brian

### Re: Fw: ACTION BY: 4/22/13 - 2013-NE-13-AD - Hamilton Sundstarnd Propeller Blade & Hub Corrosion. NPRM - Ver 2.5 

### G£1 Jay Turnberg . ANE - 111 , Ru lem aki ng and Po l icy to: Bnan Warner 05/13/201309 : 13AM Cc- Alan Rowe , John Golinski , Jonathan Galvin, Kirk Gustafson, Michael · Schwetz , Paul Donato , Stephen Grata ANE-11 

### 0 Concurs, Jay Brian Warner Al l: P l ease re vi ew and provide comme nt 

### I concu ... From: Brian Warner/ANE/FAA ANE-11 0, Standards Staff 0 5/ 1 3t201 3 08 :35: 08AM
To : Michael Schwetz/ANE/FAA@FAA , Jay Turnberg/ANE/FAA@FAA, Stephen Grota/ANE/FAA@FAA, Cc: Da te: S u b j ect: 

### All: Kirk Gustafson/ANE/FAA@FAA, John Golinski/ANE/FAA@FAA , Jonathan Galvin/ANE/FAA@FAA, Alan Rowe/ANE/FAA@FAA , Paul Donato/ANE/FAA@FAA 05/13/2013 08 :35AM Fw : ACTION BY : 4/22/13 - 2013-NE-13-AD- Hamilton Sundstarnd Propeller Blade & Hub Corrosion. NPRM - Ver 2.5

Please rev i ew and provide comment 

### I concurrence . [attachment "13ne13n . doc" deleted by Jay Turnberg/ANE/FAA]
Thanks . ... Brian 

## Brian M. Warner E&PD SAIB 

## I MCAI Coordinator Technical Writer-Editor Engine & Propeller Directorate Standards Staff , ANE-11 0 Phone: 781-238-7169 Fax : 781-238-7199 We value your feedback. Please consider completing the AVS Customer Feedback Form at: http://www .faa.gov/about/office erg/headquarters offices/avs/stakeholder feedba ck/air /field/

----- Forwarded by Brian Wa rn er/A N E/FAA on 05/ 1 3/20 1 3 08:32AM ----- From: Brian Warner /ANE/FAA ANE-11 0, Standards Staff To : Michael Schwetz/ANE/FAA@FAA , Jay Turnberg/ ANE/FAA@FAA , Stephen Grota/ANE /FAA @ FAA , Cc : Kirk Gustafson/ANE /FAA@FAA, John Golinski/ ANE /FAA@FAA , Jonathan Galvin/ANE/FAA@FAA , Alan Rowe/ANE /FAA@FAA , Paul Donato/ANE/FAA@FAA