# SAIB CE-09-42: Lights - Landing Light, Beacon Light and Taxi Light Switch Applications - Type: Special airworthiness information bulletin (advisory, not mandatory) - Status: Current - Revision: 0 - Issued: July 24, 2009 - Products: Cessna 120, 140, 140A, 150, 150A, 150B, 150C, 150D, 150E, 150F, 150G, 150H and 141 more - Product type: Aircraft, Small Airplane - PDF: https://openairdocs.org/files/sha256/5f/dd/5fdd3355aa81eaf23ae16c569755263c0b1fa6cff171bed21e3f88c09c873fa2 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/00D853B7A1809534862575FD0046ED02.0001 - DRS record last changed: July 24, 2009 - Page: https://openairdocs.org/saib/CE-09-42 ## Text FAA Aircraft Certification Service **SPECIAL AIRWORTHINESS** INFORMATION BULLETIN SAIB: CE-09-42 SUBJ: Lights - Landing Light, Beacon Light and Taxi Light Switch Applications Date: July 24, 2009 This is information only. Recommendations aren’t mandatory. Introduction This Special Airworthiness Information Bulletin (SAIB) is being issued to advise you of an airworthiness concern on mandatory replacement intervals of Cessna Landing Light, Beacon Light, and Taxi Light switches on Cessna 100, 200, and 300 series airplanes specified per Cessna service bulletins MEB09-3 and SEB09-6 dated May 11, 2009. At this time, this airworthiness concern is not considered an unsafe condition that would warrant an airworthiness directive (AD) action under Title 14 of the Code of Federal Regulations (14 CFR part 39). Background Cessna 100, 200, and 300 series airplanes utilize switches in the Landing Light, Beacon Light, and Taxi Light circuits that have been reported failing in the field causing overheating and smoke in the cockpit. There have been reports of burned insulation on the wiring terminals to the switch. On at least one occasion, there was a small fire in the cockpit. The failure in these applications can be attributed to contact erosion leading to irregular arcing and eventual failure of the switch. The contact erosion has been shown to occur after approximately 4,000 cycles of operation. Cessna service bulletins SEB09-6 and MEB09-3, initial release, dated May 11, 2009, specify the following: • An inspection to determine time-in-service for the switches. • Replacement of switches that have been in service for four or more years with the month and year of the installation written on the new replacement switch. • The month and year of the initial installation written on switches that have been in service for less than four years. Recommendations The FAA recommends that owners, operators, and maintenance technicians do the actions of the above-referenced service bulletins within the next 400 hours of operation, 12 months, or the next annual inspection, whichever comes first. For Further Information Contact Daniel Hilton, Aerospace Engineer, FAA Wichita ACO, 1801 Airport Road, Room 100, Wichita, KS 67209, telephone: (316) 946-4173, fax: (316) 946-4107, e-mail: daniel.hilton@faa.gov. http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgSAIB.nsf (Optional) For Related Service Information Contact Customer Service Cessna Aircraft Company P.O. Box 7706 Wichita, Kansas, 67277 Phone: 316-517-5800 Fax: 316-942-9006 ## Registered aircraft it may concern (OpenAirDocs) Registry models matched by make and model, the same way as ADs, most registered aircraft first. - [Cessna 172M](https://openairdocs.org/model/cessna-172m): 3,573 registered aircraft (airframe model) - [Cessna 172N](https://openairdocs.org/model/cessna-172n): 3,138 registered aircraft (airframe model) - [Cessna 182P](https://openairdocs.org/model/cessna-182p): 2,099 registered aircraft (airframe model) - [Cessna 172S](https://openairdocs.org/model/cessna-172s): 1,915 registered aircraft (airframe model) - [Cessna 172](https://openairdocs.org/model/cessna-172): 1,805 registered aircraft (airframe model) - [Cessna 152](https://openairdocs.org/model/cessna-152): 1,637 registered aircraft (airframe model) - [Cessna 140](https://openairdocs.org/model/cessna-140): 1,605 registered aircraft (airframe model) - [Cessna 182Q](https://openairdocs.org/model/cessna-182q): 1,565 registered aircraft (airframe model) - [Cessna 150L](https://openairdocs.org/model/cessna-150l): 1,447 registered aircraft (airframe model) - [Cessna 150M](https://openairdocs.org/model/cessna-150m): 1,439 registered aircraft (airframe model) - [Cessna 170B](https://openairdocs.org/model/cessna-170b): 1,300 registered aircraft (airframe model) - [Textron 172S](https://openairdocs.org/model/textron-172s): 1,239 registered aircraft (airframe model) - [Cessna 180](https://openairdocs.org/model/cessna-180): 1,177 registered aircraft (airframe model) - [Cessna 172P](https://openairdocs.org/model/cessna-172p): 1,111 registered aircraft (airframe model) - [Cessna 150F](https://openairdocs.org/model/cessna-150f): 1,063 registered aircraft (airframe model) - [Cessna 172K](https://openairdocs.org/model/cessna-172k): 1,026 registered aircraft (airframe model) - [Cessna 150G](https://openairdocs.org/model/cessna-150g): 977 registered aircraft (airframe model) - [Cessna 182T](https://openairdocs.org/model/cessna-182t): 969 registered aircraft (airframe model) - [Cessna 172L](https://openairdocs.org/model/cessna-172l): 857 registered aircraft (airframe model) - [Cessna 177B](https://openairdocs.org/model/cessna-177b): 843 registered aircraft (airframe model) - [Cessna 177RG](https://openairdocs.org/model/cessna-177rg): 788 registered aircraft (airframe model) - [Cessna 182A](https://openairdocs.org/model/cessna-182a): 784 registered aircraft (airframe model) - [Cessna 172H](https://openairdocs.org/model/cessna-172h): 780 registered aircraft (airframe model) - [Cessna 150H](https://openairdocs.org/model/cessna-150h): 756 registered aircraft (airframe model) - [Cessna 172G](https://openairdocs.org/model/cessna-172g): 722 registered aircraft (airframe model) - [Cessna 172F](https://openairdocs.org/model/cessna-172f): 717 registered aircraft (airframe model) - [Cessna 172R](https://openairdocs.org/model/cessna-172r): 683 registered aircraft (airframe model) - [Cessna 120](https://openairdocs.org/model/cessna-120): 660 registered aircraft (airframe model) - [Cessna 150J](https://openairdocs.org/model/cessna-150j): 659 registered aircraft (airframe model) - [Cessna 208B](https://openairdocs.org/model/cessna-208b): 645 registered aircraft (airframe model) - [Cessna 172E](https://openairdocs.org/model/cessna-172e): 617 registered aircraft (airframe model) - [Cessna 182S](https://openairdocs.org/model/cessna-182s): 606 registered aircraft (airframe model) - [Cessna 340A](https://openairdocs.org/model/cessna-340a): 543 registered aircraft (airframe model) - [Cessna 175](https://openairdocs.org/model/cessna-175): 536 registered aircraft (airframe model) - [Cessna 170A](https://openairdocs.org/model/cessna-170a): 513 registered aircraft (airframe model) - [Cessna 182J](https://openairdocs.org/model/cessna-182j): 487 registered aircraft (airframe model) - [Cessna 182R](https://openairdocs.org/model/cessna-182r): 487 registered aircraft (airframe model) - [Cessna 172D](https://openairdocs.org/model/cessna-172d): 471 registered aircraft (airframe model) - [Cessna 177](https://openairdocs.org/model/cessna-177): 446 registered aircraft (airframe model) - [Cessna 182](https://openairdocs.org/model/cessna-182): 446 registered aircraft (airframe model) - [Cessna 172RG](https://openairdocs.org/model/cessna-172rg): 445 registered aircraft (airframe model) - [Cessna 172A](https://openairdocs.org/model/cessna-172a): 435 registered aircraft (airframe model) - [Cessna 182M](https://openairdocs.org/model/cessna-182m): 432 registered aircraft (airframe model) - [Cessna 182H](https://openairdocs.org/model/cessna-182h): 423 registered aircraft (airframe model) - [Cessna 172B](https://openairdocs.org/model/cessna-172b): 413 registered aircraft (airframe model) - [Cessna 182K](https://openairdocs.org/model/cessna-182k): 413 registered aircraft (airframe model) - [Cessna 182L](https://openairdocs.org/model/cessna-182l): 411 registered aircraft (airframe model) - [Cessna 182B](https://openairdocs.org/model/cessna-182b): 406 registered aircraft (airframe model) - [Cessna 182G](https://openairdocs.org/model/cessna-182g): 391 registered aircraft (airframe model) - [Cessna 150](https://openairdocs.org/model/cessna-150): 387 registered aircraft (airframe model) All 174: https://openairdocs.org/saib/CE-09-42/models.md --- 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.