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TECHNICAL SERVICE BULLETIN: 104688-000

CESSNA T182 T · Maintenance Manual

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Overview

This Technical Service Bulletin (TSB) addresses a potential issue in Cessna 182 aircraft regarding the aileron control cable during autopilot operation. It specifically highlights the risk of the aileron crossover cable sagging and potentially binding against the autopilot servo, which could affect flight control. The bulletin outlines required actions for compliance, including the installation of a new Dynon-provided cable guard kit. It emphasizes that these actions must be performed by a certified mechanic and documented in the aircraft records. The bulletin is applicable to various models within the Cessna 182 series, including the T182, and is effective indefinitely.

  • Applicable to Cessna 182 models 182E-182T, including T182 and R/TR182.
  • Installation of new parts required within 12 months or 100 flight hours.
  • Installation must be performed by a certified mechanic.
  • Dynon Cable Guard kit includes multiple specific parts for installation.
  • Compliance must be documented in the aircraft records.

Document

Source

Originally published by www.dynoncertified.com. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.

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Document details

Type
Maintenance Manual
Year
2023
Pages
3
File size
209 KB
Publisher
www.dynoncertified.com
How rare is it?
7CESSNA T182 T registered worldwide · 0 active

Common. Rarer than 8% of the aircraft models we track.

Documentation completeness
3/7

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In this document

Applicability and Affected Equipment

This service bulletin applies to Cessna 182 Series aircraft models 182E through 182T, including T182 and R/TR182, that have a roll servo kit shipped prior to April 28, 2023.

Required Actions

Owners must install the new Dynon-provided parts within 12 months or 100 flight hours, whichever comes first. The installation must be performed by a certified mechanic and documented according to FAA regulations.

Material Information

Dynon will provide a Cable Guard kit (P/N 504657-000) containing various parts including a roll servo cable guard bracket, bridle cables, turnbuckle components, and necessary hardware for installation.

Installation Procedure

The procedure involves removing the roll servo, installing the new bridle cable and cable guard, and verifying the installation. Calibration of the servo is also required.

Time in Effect

This technical service bulletin remains in effect indefinitely, indicating ongoing relevance for affected aircraft.

Safety notes

  • Potential for binding in the flight control system if the aileron crossover cable sags.
  • Installation must be performed by an appropriately-rated certified mechanic.

Full document text

TECHNICAL SERVICE BULLETIN: 104688-000 Cessna 182 Roll Servo Cable Guard, Rev A Original Bulletin: April 28, 2023 PLEASE READ THIS BULLETIN IN ITS ENTIRETY BEFORE CONTACTING DYNON AVIONICS Description In Cessna 182 aircraft, during some phases of flight with autopilot engaged, low tension on the aileron control cable may cause the aileron crossover cable to sag and rest on the autopilot servo. This sagging increases the potential for binding in the flight control system. Dynon has received no reports of such binding occurring in the field. This technical service bulletin provides a means to prevent such binding in the event of the control cable sagging as described. Applicability and Affected Equipment This bulletin only affects the following certified aircraft models. • Cessna 182 Series, Models 182E–182T, T182, R/TR182, with a roll servo kit shipped prior to 04/28/2023. Required Actions Within 12 months after the effective date of this service bulletin or 100 flight hours, whichever comes first, install the new Dynon-provided parts. To request parts, fill out and submit the following form: Cessna 182 Roll Servo Cable Guard Parts Request Form. This action must be performed by an appropriately-rated certified mechanic and must be entered into the aircraft records showing compliance with this service bulletin in accordance with 14 CFR 43.9(a) and the instructions in this service bulletin. The record must be maintained as required by 14 CFR 91.417. Reference the following document for procedure below: Autopilot Servo Installation and Maintenance Manual, Cessna 182, Revision D at dynoncertified.com/docs. 1. Remove roll servo per instructions in Section 11.8: Roll Servo Removal and Replacement. 2. Assemble and install new bridle cable per instructions in Section 7.2: Roll Servo Installation. 3. Re-install roll servo per instructions in Section 11.8: Roll Servo Removal and Replacement. 4. Attach new cable guard to roll servo and capture aileron control cable and bridle cable per instructions in Section 7.2: Roll Servo Installation. 5. Verify installation per instructions in Section 7.2: Roll Servo Installation. 6. Perform servo calibration per instructions in Section 11.2: Calibration Procedure. 7. Report compliance of this service bulletin to Dynon Certified Technical Support at dynoncertified.com/contact. Material Information Dynon to send Cessna 182 Cable Guard kit (P/N 504657-000) that includes the following parts and hardware: P/N QTY DESCRIPTION 504649-000 1 ROLL SERVO CABLE GUARD BRACKET 504648-000 1 ROLL SERVO CABLE GUARD 504659-000 1 BRIDLE CABLE, INBOARD 504660-000 1 BRIDLE CABLE, OUTBOARD 104563-000 1 TURNBUCKLE BARREL 104556-000 2 TURNBUCKLE SAFETY WIRE 101670-000 2 STOP SWAGE, 1/16" CABLE AN3-3A 2 HEX BOLT #10-32 AN3-4A 2 HEX BOLT #10-32 AN960-10 4 FLAT WASHER #10 MS35333-39 2 INTERNAL STAR WASHER #10 Time in Effect This technical service bulletin is in effect indefinitely. Additional Questions? Contact Dynon Certified Technical Support at dynoncertified.com/contact.