Single Engine - SERVICE BULLETIN - SEB-24-06 - ELECTRICAL POWER-ALTERNATOR CONTROL UNIT (ACU) AND CONNECTOR OBSOLESCENCE

Oct 23, 2026

Service Bulletin SEB-24-06 addresses alternator control unit connector obsolescence for selected single-engine aircraft effectivities. The bulletin provides parts and instructions to remove and replace the alternator control unit and replace the airplane connector, specifically for customers replacing the installed ACU with DGR3-5, VR515F-5, and VR515GA-5 units. Compliance is optional and must be performed with correct installation of applicable kit parts. Technical data use and any changes to the document require authorization from Textron Aviation.

LanguageEnglish

CategoryHealthcare

FormatPDF

Pages10

Reading Time25 min

AccessFree to download

Service Bulletin

Title and Effectivity

Reason

Description

Compliance

Approval and Flight Crew Operations

Consumable Materials and Tooling

Weight and Balance and References

Publications Affected

Accomplishment Instructions

Single Engine SERVICE BULLETIN | SEB-24-06
TITLE
ELECTRICAL POWER-ALTERNATOR CONTROL UNIT (ACU) AND CONNECTOR OBSOLESCENCE
EFFECTIVITY
MODEL SERIAL NUMBERS
152 15282032 thru 15286033
A152 A1520809 thru A1521049
F152 F15201529 thru F15201980
FA152 FA1520347 thru FA1520425
172N 17271035 thru 17274009
172P 17274010 thru 17276673
172Q 17275869 thru 17276259
FR172K FR17200631 thru FR17200675
F172N F17201750 thru F17202039
F172P F17202040 thru F17202254
R172K R1722930 thru R1723454
180K 18053001 thru 18053203
182Q 18266591 , thru 18267301 , 18267303 thru
18267715
R182/TR182 R18200584 thru R18202041
FR182 FR18200026 thru FR18200070
A185F 18503684 thru 18504448
U206G/TU206G T20604650 thru U20607020
207A/T207A 20700483 thru 20700788
210N/T210N 21062955 thru 21064897
210R/T210R 21064898 thru 21065009
P210N P21000151 thru P21000834
P210R P21000835 thru P21000874
NOTE: This service document applies only to customers that are replacing the installed Alternator Control Unit (ACU) with the DGR3-5 , VR515F-5 , and VR515GA-5 ACU's.
REASON
The alternator control unit connector is no longer manufactured and replacement is provided.
NOTE: This service document applies only to customers that are replacing the installed Alternator Control Unit (ACU) with the DGR3-5 , VR515F-5 , and VR515GA-5 ACU's.
SEB-24-06
July 8 , 2024 Page 1 of 8 | | --- | | Textron Aviation Customer Service, P.O. Box 7706 , Wichita, KS 67277 , U.S.A. 1-316-517-5800 This document contains technical data and is subject to U.S. export regulations. This information has been exported from the United States in accordance with export administration regulations. Diversion contrary to U.S. law is prohibited. ECCN: 9E991
COPYRIGHT © 2024 | Single Engine SERVICE BULLETIN SEB-24-06 DESCRIPTION This service document provides parts and instructions to remove and replace the alternator control unit and replace the airplane connector. COMPLIANCE OPTIONAL. This service kit can be accomplished at the discretion of the owner. A service document published by Textron Aviation may be recorded as completed in an aircraft log only when the following requirements are satisfied: 1) The mechanic must complete all of the instructions in the service document, including the intent therein. 2) The mechanic must correctly use and install all applicable parts supplied with the service document kit. Only with written authorization from Textron Aviation can substitute parts or rebuilt parts be used to replace new parts. 3) The mechanic or airplane owner must use the technical data in the service document only as approved and published. 4) The mechanic or airplane owner must apply the information in the service document only to aircraft serial numbers identified in the Effectivity section of the document. 5) The mechanic or airplane owner must use maintenance practices that are identified as acceptable standard practices in the aviation industry and governmental regulations. No individual or corporate organization other than Textron Aviation is authorized to make or apply any changes to a Textron Aviation-issued service document or flight manual supplement without prior written consent from Textron Aviation. Textron Aviation is not responsible for the quality of maintenance performed to comply with this document, unless the maintenance is accomplished at a Textron Aviation-owned Service Center. APPROVAL Textron Aviation received FAA approval for the technical data in this publication that changes the airplane type design. FLIGHT CREW OPERATIONS No Changes CONSUMABLE MATERIAL No specialized consumable materials are required to complete this service document. TOOLING No specialized tooling is required to complete this service document. WEIGHT AND BALANCE INFORMATION Negligible REFERENCES Cessna Model 150 Series (1969-1976) Service Manual Cessna Model 152 S

FAQs

What problem does Service Bulletin SEB-24-06 address?

It addresses alternator control unit connector obsolescence, noting that the connector is no longer manufactured and replacement is provided.

Which ACU replacements does SEB-24-06 apply to?

It applies only to customers replacing the installed Alternator Control Unit (ACU) with the DGR3-5, VR515F-5, and VR515GA-5 ACU units.

Is compliance with SEB-24-06 mandatory?

No. The bulletin states compliance is optional and can be accomplished at the owner’s discretion, provided the stated requirements are met.

Oct 23, 2026

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