Skip to main content

SB-68

Heli-Sport CH-7 Kompress · Service Bulletins

Free account — keep the POHs & checklists you reference in one place.

Overview

This service bulletin (SB-68) addresses the installation of a new voltage regulator for the Helisport CH-7 Kompress and other models with the EPA 917 engine. It outlines mandatory compliance procedures for inspection and replacement to prevent potential damage and operational issues related to voltage regulation.

  • Mandatory installation of Voltage Regulator Atal 8000 and Card 7004.
  • Inspection required during the next pre-flight check.
  • Failure to comply may result in aircraft damage or personal injury.
  • The new regulator provides better voltage regulation and pilot warnings.
  • Installation must be performed by trained personnel.
  • Material costs and availability are provided by authorized sellers.
  • The aircraft must be returned to its original operating configuration post-installation.
  • Documentation of compliance must be recorded in the maintenance log.

Document

Source

Originally published by ch-7helicopter.com. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.

View original at ch-7helicopter.com

Report a problem or request removal

Document details

Type
·
Service Bulletins
Year
·
2019
File size
·
548 KB
Publisher
·
ch-7helicopter.com
Language
·
en

Specifications & performance

Extracted from this document.

Specifications

Card model
·
7004
Voltage regulator model
·
Atal 8000
About this document
What is the SB-68?

The SB-68 is a service bulletins for the Heli-Sport CH-7 Kompress, dated 2019.

Where does the SB-68 come from?

This copy of the SB-68 was originally published by ch-7helicopter.com and is hosted on Sprinkle as a free, searchable reference copy.

What year was the SB-68 published?

The SB-68 — the Heli-Sport CH-7 Kompress service bulletins on file — is dated 2019.

Documentation completeness
2/7

Most owners only have the POH. Here's the essential set for the Heli-Sport CH-7 Kompress.

This aircraft
Browse all aircraft modelsAircraft directory
For sale
Browse all aircraft for saleAircraft wanted ads
Parts & spares
Avionics & radiosEngines & cylindersBrowse all aircraft parts
Your library
All Heli-Sport CH-7 Kompress manuals6All Heli-sport manualsFull manuals libraryMy hangar
Tools
Identify an aircraftTail number lookupAircraft matcherCompare aircraftCan I land here?Where can it land?
Explore Sprinkle
Aircraft directoryManufacturersAirports & runwaysAirlinesEnginesAircraft for saleAircraft partsLive flight tracker
For professionals
List an aircraft for salePost a wanted adDealer & broker directoryAircraft parts marketplaceData & API licensingData sources

More Heli-Sport CH-7 Kompressmanuals & documents

Related documents

In this document

Compliance Procedure

The application of SB 68 must be in accordance with the installation instructions followed in section 3.

Material Costs and Availability

Prices and availability will be provided by CH7 HELISPORT HELICOPTER, Authorized Sellers or CH7 SERVICE CENTER.

Instructions

This maintenance service can be applied by operators who have followed the special installation course held by the Manager Engineer Helisport.

Required Parts

The required parts include the Voltage Regulator Atal 8000, Card 7004, and Lockout Relay of engine start.

Warnings

Failure to follow the instructions may result in damage to the aircraft, personal injury, or death.

Summary

The application of this bulletin must be transcribed in the aircraft maintenance log book.

Safety notes

  • Failure to follow this instruction may result in damage to the aircraft, personal injury or death.

Full document text

SERVICE BULLETIN: # SB-68 DATE: 24 June 2019 TO: ALL TYPE WITH ENGINE EPA 917 INSTALLED AFFECTED PRODUCTS: CH77 Ranabot , CH7 Kompress Charlie , CH7 Kompress SUBJECT: VOLTAGE REGULATOR FOR EPA 917 INSPECTION: NEXT PRE -FLIGHT INSPECTION REPLACEMENT: MANDATORY COMPLIANCE PROCEDURE: S/B 68 Planning/Information Experience in the field has shown that the regulators installed on all Rotax and Epa engines are often damaged by suspending power supply without warning of failure. in the cases identified, the failure event can be associated with external operating temperatures of 25 degrees OAT or above. the damaged regulator does not warn the pilot with any type of information, the aircraft can fly with only one current generator if the pilot optimizes the services until the consumption is balanced with the current production, in the event that the pilot does not activate any action corrective, the battery voltage slowly begins to go down, this is the only information that the pilot can use to presume a fault in the regulator but strong absorption with a low battery voltage can create rapid and sudden and total voltage drops that can cause difficulties in operation of the engine management control unit. Helisport has developed a highly precise regulator that not only regulates the voltage in a balanced 14.2 volt fashion. +/- 0.5 but also to monitor trends and above all to inform the pilot with differentiated light warnings about failure situations, overloads, overheating, and voltage drops.The start of fan 1 (the big one) produces a starting current of about 140Amperes that represent three times that available from the 2 alternators together.This can cause a momentary collapse of the voltage of a few volts, which couldjeopardize the operation of on-board services, including the ignition / injection system,especially when the battery is low or defective.It is mandatory to install : Voltage Regulator Atal 8000,the new model 7004 fan card which limits the current tocue for 16 amperes for the large fan and 8 amperes for the small fan, thus avoiding overcoming the maximum current available from the alternators, install the Lockout Relay when the engine is already in operation. 1.2 Subject: Installation of the Atal 8000 voltage regulator and 7004 Card on all Helisport models with EPA 917 Ti engines. Page 1 of 4 1.3 Compliance Application request in the next pre-flight inspection. The application of the SB 68 must be in accordance with the installation instructions followed in section 3. WARNING: Failure to follow this instruction may result in damage to the aircraft, personal injury or death 2) Material-costs and availability prices and availability will be provided by CH7 HELISPORT HELICOPTER, Authorized Sellers or CH7 SERVICE CENTER 2.1 The Company Shipping costs, downtime, loss of income, telephone costs etc., labor, additional work, are not charged or reimbursed by CH7 HELISPORT HELICOPTER. 2.2 Material required parts: - Voltage Regulator Atal 8000 -Card 7004 -Lockout Relay of engine start 2.4 special equipment / lubricated / glue / sealing compound. NO Rework of parts NO 3) Instructions This maintenance service can be applied by operators who have followed the special installation course held by the Manager Engineer Helisport Mr: Barbero Giuseppe To fully review the documentation to understand exactly the procedures and requirements to avoid errors, all measurements must be taken and confirmed within the following persons or structures: CH7 HELISPORT HELICOPTER CH7 SERVICE CENTER people approved by CH7 HELISPORT HELICOPTER List of peoples who attended the course Mr. Martin Gracka Mamba Air Mr. Matthieu De Quillacq Mr. Jean-Denis Desplans Sarl Helisport France 3.2) Put the aircraft back in its original operating configuration in accordance with the related construction and maintenance manuals 3.3 Summary These instructions (section3) must be completed in accordance with section 1.3 Compliance. The application of this bulletin must be transcribed in the aircraft maintenance log book. Page 2 of 4 OLD VOLTAGE REGULATOR Page 3 of 4 VOLTAGE REGULATOR ATAL 8000 Page 4 of 4

All Heli-Sport CH-7 Kompress service bulletins