# SAIB NE-13-32: Propeller Spinner Section - Type: Special airworthiness information bulletin (advisory, not mandatory) - Status: Current - Revision: 0 - Issued: May 9, 2013 - Products: Mooney M20, M20A, M20B, M20C, M20D, M20E, M20F, M20G, M20K, M20L, M20M, M20R and 6 more - Product type: Appliance - PDF: https://openairdocs.org/files/sha256/1d/dd/1ddd74b71046ccec87f8b5038449af89ef287d08d3151077a7a94580a0955702 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B45E99A9713887C686257B6600581ADB.0001 - DRS record last changed: May 9, 2013 - Page: https://openairdocs.org/saib/NE-13-32 ## Text FAA Aviation Safety **SPECIAL AIRWORTHINESS** INFORMATION BULLETIN SUBJ: Propeller Spinner Section SAIB: NE-13-32 Date: May 9, 2013 This is information only. Recommendations aren’t mandatory. Introduction This Special Airworthiness Information Bulletin alerts you, owners, operators, and certificated repair facilities of Piper PA-24, Piper PA-28R-180, Piper PA-28R-200, and Mooney M20( ) airplanes, except for the Mooney M20(J), equipped with Hartzell Propeller spinner assemblies, part numbers (P/N) 835-54(P) or 835-58(P), of the potential for cracking of the spinner dome which could lead to failure and liberation of the spinner. The airworthiness concern is not an unsafe condition that would warrant airworthiness directive action under Title 14 of the Code of Federal Regulations (14 CFR) part 39. Background We have received reports of Hartzell spinners, P/N 835-54(P) and 835-58(P), installed on the aircraft listed above which have developed cracks. These cracks will propagate with use, eventually leading to spinner liberation and damage to the airplane. The reported failures have caused in-flight vibrations resulting in premature landings. Many of these spinners were newly manufactured and had a relatively low amount of time-in-service. Hartzell Propeller conducted testing and analysis on the spinner failures and noted that during some flight operations a resonant vibratory condition was present. Hartzell Propeller has developed a replacement spinner configuration that mitigates the vibratory environment. There are approximately 380 airplanes affected by this condition. Spinners installed on Mooney M20 (J) airplanes in accordance with Hartzell STC SA02414CH-D are not affected by this condition because they do not have the subject spinner assembly installed. Recommendations If a crack on the spinner is discovered during pre-flight inspection, we recommend replacement of the spinner before further flight. If a crack is not found, then, within 50 flight hours we recommend replacement of the spinner assembly. Guidance may be found Hartzell Service Bulletin HC-SB-61-311, Revision 5, dated December 13, 2011 and Hartzell Alert Service Bulletin HC-ASB-61-332, Revision 5, dated December 13, 2011, or later FAA approved revisions. For Further Information Contact Christopher Richards, Aerospace Engineer, Chicago Aircraft Certification Office, FAA; phone: 847-294-7156; fax: 847-294-7834; email: christopher.j.richards@faa.gov. For Related Service Information Contact Hartzell Propeller Inc., One Propeller Place, Piqua, Ohio 45356; phone: 937-778-4379; fax 937-778-4391; email: techsupport@hartzellprop.com. ## Registered aircraft it may concern (OpenAirDocs) Registry models matched by make and model, the same way as ADs, most registered aircraft first. - [Mooney M20C](https://openairdocs.org/model/mooney-m20c): 1,258 registered aircraft (airframe model) - [Piper PA-28R-200](https://openairdocs.org/model/piper-pa-28r-200): 1,223 registered aircraft (airframe model) - [Mooney M20E](https://openairdocs.org/model/mooney-m20e): 829 registered aircraft (airframe model) - [Mooney M20K](https://openairdocs.org/model/mooney-m20k): 771 registered aircraft (airframe model) - [Mooney M20F](https://openairdocs.org/model/mooney-m20f): 721 registered aircraft (airframe model) - [Piper PA-28R-180](https://openairdocs.org/model/piper-pa-28r-180): 536 registered aircraft (airframe model) - [Mooney M20R](https://openairdocs.org/model/mooney-m20r): 399 registered aircraft (airframe model) - [Piper PA-24](https://openairdocs.org/model/piper-pa-24): 345 registered aircraft (airframe model) - [Mooney M20M](https://openairdocs.org/model/mooney-m20m): 249 registered aircraft (airframe model) - [Mooney M-20G](https://openairdocs.org/model/mooney-m-20g): 116 registered aircraft (airframe model) - [Mooney M20TN](https://openairdocs.org/model/mooney-m20tn): 107 registered aircraft (airframe model) - [Mooney M20B](https://openairdocs.org/model/mooney-m20b): 98 registered aircraft (airframe model) - [Mooney M20D](https://openairdocs.org/model/mooney-m20d): 88 registered aircraft (airframe model) - [Mooney M20A](https://openairdocs.org/model/mooney-m20a): 58 registered aircraft (airframe model) - [Mooney M20S](https://openairdocs.org/model/mooney-m20s): 58 registered aircraft (airframe model) - [Mooney M20](https://openairdocs.org/model/mooney-m20): 23 registered aircraft (airframe model) - [Mooney M20L](https://openairdocs.org/model/mooney-m20l): 16 registered aircraft (airframe model) - [Mooney International M20TN](https://openairdocs.org/model/mooney-international-m20tn): 12 registered aircraft (airframe model) - [Aerostar Acft Corp Of Texas M20E](https://openairdocs.org/model/aerostar-acft-corp-of-texas-m20e): 9 registered aircraft (airframe model) - [Aerostar Acft Corp Of Texas M20F](https://openairdocs.org/model/aerostar-acft-corp-of-texas-m20f): 8 registered aircraft (airframe model) - [Aerostar Acft Corp Of Texas M20C](https://openairdocs.org/model/aerostar-acft-corp-of-texas-m20c): 6 registered aircraft (airframe model) - [Mooney International M20R](https://openairdocs.org/model/mooney-international-m20r): 4 registered aircraft (airframe model) - [Aerostar Acft Corp Of Texas M20](https://openairdocs.org/model/aerostar-acft-corp-of-texas-m20): 0 registered aircraft (airframe model) - [Aerostar Acft Corp Of Texas M20A](https://openairdocs.org/model/aerostar-acft-corp-of-texas-m20a): 0 registered aircraft (airframe model) - [Aerostar Acft Corp Of Texas M20B](https://openairdocs.org/model/aerostar-acft-corp-of-texas-m20b): 0 registered aircraft (airframe model) - [Aerostar Acft Corp Of Texas M20D](https://openairdocs.org/model/aerostar-acft-corp-of-texas-m20d): 0 registered aircraft (airframe model) - [Aerostar Acft Corp Of Texas M20G](https://openairdocs.org/model/aerostar-acft-corp-of-texas-m20g): 0 registered aircraft (airframe model) --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.