MANDATORY BULLETIN No. EV97-041a
EVEKTOR EV-97 Eurostar · Service Bulletins
Overview
This document is a mandatory service bulletin for all EV 97 EuroStar airplanes, focusing on enhancing the safety of the oil system in ROTAX 912 ULS2/S2 series engines. It outlines the required actions, materials, and procedures for installing protective sleeves on the oil system hoses.
- Mandatory bulletin No. EV97-041a for EV 97 EuroStar airplanes.
- Installation of PYROJACKET PJA 14 protective sleeves is required.
- Action must be taken during the next 100-hour inspection or annual inspection.
- Costs for the installation are covered by the airplane owner/operator.
- Work must be performed by authorized maintenance organizations.
- No appendices are included in the bulletin.
- The bulletin is valid from June 9th, 2023.
Document
Source
Originally published by website-files.com. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type ·
- Service Bulletins
- Year ·
- 2023
- File size ·
- 346 KB
- Publisher ·
- website-files.com
- Language ·
- en
Specifications & performance
Extracted from this document.
Specifications
- Pyrojacket length m ·
- 2.5
- Lockwire diameter mm ·
- 0.81
- Cable tie 1 length mm ·
- 142
- Cable tie 2 length mm ·
- 368
What is the MANDATORY BULLETIN No. EV97-041a?
The MANDATORY BULLETIN No. EV97-041a is a service bulletins for the EVEKTOR EV-97 Eurostar, dated 2023.
Where does the MANDATORY BULLETIN No. EV97-041a come from?
This copy of the MANDATORY BULLETIN No. EV97-041a was originally published by website-files.com and is hosted on Sprinkle as a free, searchable reference copy.
What year was the MANDATORY BULLETIN No. EV97-041a published?
The MANDATORY BULLETIN No. EV97-041a — the EVEKTOR EV-97 Eurostar service bulletins on file — is dated 2023.
Most owners only have the POH. Here's the essential set for the EVEKTOR EV-97 Eurostar.
- Pilot's Operating Handbook / AFM
- Checklist
- Maintenance Manual
- Parts Catalog (IPC)
- Systems & Wiring
- Service Bulletins on file
- Type Certificate (TCDS)
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In this document
Work Procedure
Details the necessary tools, materials, and step-by-step instructions for installing the protective sleeves on the oil system hoses.
Necessary Tools
Lists the tools required for the installation, including wrenches, a screwdriver, pliers, and an oil container.
Necessary Material
Specifies the materials needed for the installation, including PYROJACKET protective sleeves and lockwire.
Influence on Airplane Documentation
States that the installation must be recorded in the Aircraft Logbook after completion.
Influence on Weight and Balancing
Instructs to determine the weight of the empty airplane in accordance with the Airplane Maintenance Manual.
Safety notes
- Do not spill engine oil into the engine compartment when removing oil system hoses.
Full document text
Letecká 1008, 686 04 Kunovice, Czech Republic QS-406/F-07I tel: + 420 572 537 428 fax: + 420 572 537 901 e-mail: evektor@evektor.cz http://www.evektor.cz Page : 1/4 Issues MANDATORY BULLETIN No. EV97-041a 1. CONCERNING: All EV 97 EuroStar´airplanes. 2. REASON: Increasing the safety of the oil system of THE ROTAX 912 ULS2 / S2 series engines by installing the PYROJACKET PJA 14 protective sleeves on the oil system hoses. 3. REQUIRED ACTIONS: 1. Install the PYROJACKET PJA 14 protective sleeves on the hose assembly of the ROTAX 912 ULS2 / S2 engine oil system. 2. Record the bulletin implementation in the Logbook. 4. LATEST DAY OF ACTION: During the regular inspection after 100 hours or during the annual inspection whichever occurs first. 5. CARRIED OUT BY: Organizations authorized for maintenance / repairs of this type of airplane or the relevant authorized person. 6. COSTS COVERED BY: Airplane owner/operator. 7. NECESSARY MATERIAL: In accordance with the bulletin text. 8. WORK PROCEDURE: In accordance with the bulletin text. 9. APPENDICES: None. Valid from: June 9th 2023 Letecká 1008, 686 04 Kunovice, Czech Republic QS-406/F-07I tel: + 420 572 537 428 fax: + 420 572 537 901 e-mail: evektor@evektor.cz http://www.evektor.cz Page : 2/4 1. Work procedure 1.1 Necessary tools Name Designation Quantity ---------------------------------------------------------------------------------------------------------------- Wrench No. 7 1 pc Wrench No. 22 1 pc Flat screwdriver 1 pc Snap-off utility knife 1 pc Pliers 1 pc Oil container 5 l 1 pc Lint-free cloth 1.2 Necessary material (in accordance with EV97- 041A) Name Designation Nomencl. Quantity ---------------------------------------------------------------------------------------------------------------- PYROJACKET protective sleeve PJA 14 055606 2,5 m Lockwire ø 0.81 mm (0.032") 118898 0,002 kg (5m) Cable tie 3,6x142 mm 060333 10 pcs Cable tie 4,8x368 mm 060371 10 pcs The material shall be supplied by the airplane manufacturer. 1.3 Work procedure 1.3.1 Switch the electrical network off. Turn the fuel cock to the OFF position. Remove the upper engine cowling in accordance with the procedure specified in the Airplane. Disconnect the battery. 1.3.2 Unscrew and remove the bolts with the washers which attach the cooler to the lower engine cowling. Remove the hose clamp and disconnect the hose of the cold air inlet of the heating exchanger. Remove the lower part of the engine cowling. CAUTION DO NOT SPILL THE ENGINE OIL INTO THE ENGINE COMPARTMENT WHEN REMOVING THE INDIVIDUAL OIL SYSTEM HOSES. 1.3.3 Drain the oil from the oil system in accordance with the procedure specified in the in accordance with Airplane Maintenance Manual for EV97 Eurostar (Section 4.5.1). 1.3.4 Cut the cable ties securing the oil system hoses to the other components. Remove the original rubber protective covers against abrasion. Remove the ends of the oil system hoses (1, Fig. 1) from the more accessible sides or remove the hoses completely - all determined by the accessibility of the dismantling point itself. Take extra care when working with the oil system hoses due to residual oil inside the hoses. 1.3.5 Secure the ends of the removed hoses (1) with suitable plugs against the ingress of dirt and glass fibres contained in the PYROJACKET protective sleeve (2). 1.3.6 Determine the length of the PYROJACKET protective sleeve (2) in accordance with the length of each individual oil system hose. Add the necessary allowance to the length of the PYROJACKET protective sleeve (2) to allow the fittings to be attached to both ends of the oil system hose (Fig. 1). The version of the oil system with a thermostat requires 5 pieces of PYROJACKET protective sleeves (2), the version of Letecká 1008, 686 04 Kunovice, Czech Republic QS-406/F-07I tel: + 420 572 537 428 fax: + 420 572 537 901 e-mail: evektor@evektor.cz http://www.evektor.cz Page : 3/4 the oil system without a thermostat requires a total of 3 pieces of PYROJACKET protective sleeves (2). 1.3.7 Slide the PYROJACKET protective sleeves (2) onto the oil system hoses (1). 1.3.8 Remove the plugs from the oil system hoses and insert the hoses into the respective screw fittings and secure them with hose clamps. 1.3.9 Unfold the ends of the PYROJACKET protective sleeves (2) so that they cover the oil system hoses (1) including the fittings from one end to the other. Secure the ends of the PYROJACKET protective sleeves (2) with the lockwire (3). Fasten the oil system hoses (1) with attached PYROJACKET protective sleeves (2) to the other components using cable ties and spacer rings. 1.3.10 Refill the oil system in accordance with the procedure specified in the Airplane Maintenance Manual for EV97 EuroStar (Section 4.5.1). 1.3.11Attach the cooler to the lower engine cowling and connect the cold air inlet hose to the heat exchanger. Install the lower engine cowling. Connect the battery. Install the upper engine cowling. Switch the electrical network on. 1.3.12 Carry out the engine test, check oil pressure and oil system leaks in accordance with Pilot´s Operating Handbook (Section 4). Fig. 1 – Installation of the PYROJACKET PJA 14 protective sleeve Legend to Fig. 1 1 Oil hose 3 Lockwire 0,81mm 2 PYROJACKET PJA 14 protective sleeve Letecká 1008, 686 04 Kunovice, Czech Republic QS-406/F-07I tel: + 420 572 537 428 fax: + 420 572 537 901 e-mail: evektor@evektor.cz http://www.evektor.cz Page : 4/4 2. Influence on airplane documentation 2.1 Accompanying technical documentation Not affected. 2.2 Operation technical documents After the bulletin implementation, the authorized person will carry out the record in the Aircraft Logbook: „Installation of the PYROJACKET PJA 14 protective sleeves on the oil system hoses was carried out in accordance with the Mandatory Bulletin No. EV97- 041a“. 3. Influence on weight and balancing Determine the weight of the empty airplane on the center of gravity of the airplane in
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accordance with Airplane Maintenance Manual for EV97 EuroStar airplane (Section 2.2.5).