# AD 79-19-13: Elevator Trim Tab - Type: Airworthiness directive - Status: Current - Products: Cessna 441 - Effective: December 26, 1979 - Superseded by: Nothing supersedes this AD - Product type: Aircraft, Small airplane - Amendment: 39-3651 - Registered aircraft: 172 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3F292A1B83A89F1586256E0D00503D4C.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/79-19-13 ## The airworthiness directive 79-19-13 CESSNA: Amendment 39-3578 as amended by Amendment 39-3651. Applies to Model 441 (Serial Numbers 441-0001 through 441-0106 and 441-0109) airplanes certificated in all categories. COMPLIANCE: Required as indicated unless already accomplished in accordance with (1) Cessna Propjet Service Information Letter Number PJ79-15, Revision #1 and information applicable thereto on the errata sheet dated October 17, 1979, issued by Cessna, (2) Cessna Service Kit Instructions Number SK441-27 dated September 18, 1979, and information applicable thereto on the errata sheets, dated October 5, 17, 22 and November 5, 1979, issued by Cessna, and (3) applicable dispositions approved by Cessna and issued on Conquest Return to Service (RTS) call report forms. To preclude failure of the elevator trim tab actuator jack screws, accomplish the following: A) At least 24 hours prior to initiating compliance with this AD, each owner/operator shall contact his local FAA GADO/FSDO/EMDO (whichever is applicable) and advise them of the following: 1. Registration number and serial number of each of their Cessna Model 441 airplanes, and 2. When and where each of the airplanes is to have this AD accomplished. NOTE: GADO stands for General Aviation District Office FSDO stands for Flight Standards District Office EMDO stands for Engineering and Manufacturing District Office B) Prior to the next flight install, (1) a new horizontal stabilizer assembly, left and right elevator assemblies, elevator trim tab control system and, (2) inspect and modify or, if necessary, replace the tailcone shelf assembly, all in accordance with Cessna Propjet Service Information Letter Number PJ79-15, Revision #2, Cessna Service Kit Instructions Number SK441-27A, dated November 14, 1979, and any applicable dispositions approved by Cessna and issued on Conquest Return to Service (RTS) call report forms. NOTE: Cessna has issued errata sheets dated November 20, 1979, which includes some general information items and several items showing special modification procedures to be used if certain problems occur during compliance with Paragraph B) of this AD. The November 20, 1979 errata sheets may not be used as the approval document for any modifications necessary to correct the subject problems. Such approval will be dispositioned by Cessna on Conquest Return to Service (RTS) call report forms issued for the specific airplane involved. C) Prior to approving the airplane for return to service, revise airplane weight and balance report to reflect the change in weight, moment and center of gravity location, as outlined in Federal Aviation Regulations (FAR) 43.5 and 91.31, resulting from these modifications. D) An appropriately rated Repair Station or the Authorized Inspector who inspected the work must make an entry in the airplane maintenance records, that are to be transferred with the airplane, showing that this AD has been complied with and approving the airplane for return to service. E) Prior to carrying any person in the airplane other than a crew member, perform a flight check of the airplane in accordance with FAR 91.167 and instructions in Cessna Propjet Service Information Letter Number PJ79-15, Revision #2. F) Return to Cessna and/or destroy components removed from the airplane during compliance with this AD in accordance with instructions in Cessna Propjet Service Information Letter PJ79-15, Revision #2. G) Any equivalent method of compliance with this AD must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Central Region. Amendment 39-3578 became effective September 19, 1979. This Amendment 39-3651 becomes effective December 26, 1979. ## Affected data sheets (1) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS A28CE](https://openairdocs.org/tcds/A28CE): Textron Aviation Inc.; names 1 of 1 models: 441 ## Registered aircraft it may apply to (OpenAirDocs) Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment. - Aircraft: 172 (172 by airframe model, 0 by engine model) - Makers: Cessna 172 Models with the most aircraft: - [Cessna 441](https://openairdocs.org/model/cessna-441): 172 aircraft (airframe model) All 1 models: https://openairdocs.org/ad/79-19-13/models.md Every aircraft: https://openairdocs.org/ad/79-19-13/aircraft.md Its text cites no advisory circulars or STCs. --- 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.