MANDATORY BULLETIN No. EV 97-042a SR R1

EVEKTOR EV-97R Eurostar · Service Bulletins

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

Overview

This document is a mandatory service bulletin for all EV-97 EuroStar airplanes, detailing required actions to replace fastening bolts in the engine and engine mount hinges. It aims to unify the strength class of these bolts to minimize the risk of accidental interchange.

Mandatory bulletin No. EV 97-042a SR R1.
Applies to all EV-97 EuroStar airplanes.
Bolts must be replaced within 30 days or at the next service inspection.
Replacement must be recorded in the Aircraft Logbook.
Work must be carried out by authorized maintenance organizations.
Costs for the replacement are covered by the airplane owner/operator.
Specific tools and materials are required for the replacement.
The procedure includes safety precautions and torque specifications.

Document

Source

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

View original at website-files.com

Report a problem or request removal

Document details

Type: Service Bulletins
Year: 2023
File size: 471 KB
Publisher: website-files.com
Language: en

Specifications & performance

Extracted from this document.

Specifications

Drill bit diameter mm: 2.1
Torque wrench range (nm): 20-100
Workshop crane load capacity kg: 150
Suspension straps load capacity kg: 150

About this document

What is the MANDATORY BULLETIN No. EV 97-042a SR R1?

The MANDATORY BULLETIN No. EV 97-042a SR R1 is a service bulletins for the EVEKTOR EV-97R Eurostar, dated 2023.

Where does the MANDATORY BULLETIN No. EV 97-042a SR R1 come from?

This copy of the MANDATORY BULLETIN No. EV 97-042a SR R1 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. EV 97-042a SR R1 published?

The MANDATORY BULLETIN No. EV 97-042a SR R1 — the EVEKTOR EV-97R Eurostar service bulletins on file — is dated 2023.

Documentation completeness

3/7

Most owners only have the POH. Here's the essential set for the EVEKTOR EV-97R Eurostar.

Pilot's Operating Handbook / AFM
Checklist
Maintenance Manual
Parts Catalog (IPC)
Systems & Wiring
Service Bulletins on file
Type Certificate (TCDS)

More EVEKTOR EV-97R Eurostarmanuals & documents

In this document

Reason for Bulletin

Unification of the strength class of the fastening bolts to minimize the possibility of accidental interchange.

Required Actions

Replace the fastening bolts and record the replacement in the Aircraft Logbook.

Work Procedure

Detailed steps for replacing the bolts, including necessary tools and materials.

Necessary Tools

Includes workshop crane, torque wrench, and various hand tools.

Necessary Material

Specific bolts, plugs, cable ties, cotter pins, and washers are required.

Safety Notes

Threads of bolts tightened with a torque wrench must not be greased.

Safety notes

Threads of bolts tightened with a torque wrench must not be greased.

Full document text

Letecká 1008, 686 04 Kunovice, Czech Republic QS-406/F-01J tel: +420 572 537 558 / +420 572 537 605 e-mail: service@evektor.com / evektor@evektor.com http://www.evektor.com Page : 1/6 Issues MANDATORY BULLETIN No. EV 97-042a SR R1 SAFETY RELATED 1. CONCERNING: All EV-97 EuroStar airplanes. 2. REASON: Unification of the strength class of the fastening bolts in the joint of the engine and the engine mount hinges and the resulting minimization of the possibility that these bolts will be accidentally interchanged. 3. REQUIRED ACTIONS: 1. Replace the fastening bolts in accordance with the bulletin text. 2. Record the replacement in the Aircraft Logbook. 4. LATEST DAY OF THE ACTION: Within 30 calendar days of the issue of this bulletin or during the next scheduled service inspection, whichever occurs first. 5. CARRIED OUT BY: Organizations authorized for maintenance / repairs of this type of airplane. 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: August 7th, 2023 Letecká 1008, 686 04 Kunovice, Czech Republic QS-406/F-01J tel: +420 572 537 558 / +420 572 537 605 e-mail: service@evektor.com / evektor@evektor.com http://www.evektor.com Page : 2/6 1. Work procedure 1.1 Necessary tools Name Designation Quantity ---------------------------------------------------------------------------------------------------------------- Workshop crane Load capacity min. 150 kg 1 pc Suspension straps Load capacity min. 150 kg 3 pcs. Hand electric drill 1 pc Drill bit ø 2,1 mm 1 pc Torque wrench 20-100 Nm 1 pc Pincers 1 pc Adjustable pliers 1 pc Allen wrench No. 5 1 pc Flat screwdriver 1 pc Marking pin 1 pc 1.2 Necessary material (in accordance with EV97-042A) Name Designation Nomencl. Quantity ------------------------------------------------------------------------------------------------------------------------- Bolt M10-35 S6 66-01 21 3 pcs. Plug SG6 04-03 21 4 pcs. Cable tie 3,6x142 mm 060333 20 pcs. Cable tie 4,8x368 mm 060371 20 pcs. Cotter pin 2x32 039651 4 pcs. Washer 10,2 DIN 7980 037209 3 pcs. The material will be supplied by the airplane manufacturer. 1.3 Work procedure 1.3.1 Replacement of bolts in the joint of the engine and the engine mount hinges 1.3.1.1 Switch the electrical network off. 1.3.1.2 Turn the fuel cock control to the OFF position. 1.3.1.3 Remove the upper engine cowling. 1.3.1.4 Disconnect the battery. 1.3.1.5 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. 1.3.1.6 Cut the cable ties on the engine wiring to gain access to the bolts of the engine on the engine mount hinges. Letecká 1008, 686 04 Kunovice, Czech Republic QS-406/F-01J tel: +420 572 537 558 / +420 572 537 605 e-mail: service@evektor.com / evektor@evektor.com http://www.evektor.com Page : 3/6 1.3.1.7 Remove any hoses or devices that prevent access to the bolts of the engine on the engine mount hinges. In case of removal of one of the hoses, make sure to drain its contents. 1.3.1.8 Secure the ends of the removed hoses with suitable plugs against the ingress of dirt. 1.3.1.9 Hang the engine (3, Fig. 1) on the workshop crane (1) using the suspension strap (2). The engine (3) is now secured against falling. 1.3.1.10 Remove the cotter pins and plugs (5, 7, Fig. 3) from the bolts (1, 2, 3, 4, Fig. 2) in the joint of the engine and the engine mount hinges. CAUTION THREADS OF BOLTS TIGHTENED WITH A TORQUE WRENCH MUST NOT BE GREASED! 1.3.1.11 Remove the bolt (1) from the joint of the engine and the engine mount hinges. Immediately replace the removed bolt with a new bolt and a new washer (6, Fig.3) and tighten it lightly. 1.3.1.12 Remove the bolt (2) from the joint of the engine and the engine mount hinges. Immediately replace the removed bolt with a new bolt and a new washer (6, Fig.3) one and tighten it lightly. 1.3.1.13 Remove the bolt (3) from the joint of the engine and the engine mount hinges. Immediately replace the removed bolt with a new bolt and a new washer (6, Fig.3) and tighten it lightly. 1.3.1.14 Tighten the bolt (4, Fig. 2) in the joint of the engine and the engine mount hinges using a torque wrench with a torque of 40 Nm. This bolt is the only one that is not replaced, but the tightening torque value is changed from 35 Nm to 40 Nm. 1.3.1.15 Tighten the bolts (1,2,3) in the joint of the engine and the engine mount hinges using a torque wrench with a torque of 40Nm. 1.3.1.16 Put the plugs (5, Fig.3) on the bolts (4), (1,2,3,4, Fig.2). 1.3.1.17 Mark the plugs (5, Fig. 3) with a marking pin in accordance with the holes in the engine mount hinges (2) on both sides. 1.3.1.18 Remove the plugs (5) from the bolts (4) and drill through them with a ø2,1 mm drill bit in accordance with the marks made by the marking pin. 1.3.1.19 Put the plugs (5) back on the bolts (4) so that they align with the holes in the engine mount hinges (2). 1.3.1.20 Use the cotter pins (7) to secure the bolts (4) with the plugs (5) in the joint of the engine and the engine mount hinges (2). 1.3.1.21 Release the engine from the mounting crane (Fig. 1). 1.3.1.22 Remove all plugs from hoses or devices. 1.3.1.23 Attach all hoses which were previously removed to gain access to the bolts. 1.3.1.24 Attach new cable ties to the engine wiring if they were previously cut to gain access to the bolts. Letecká 1008, 686 04 Kunovice, Czech Republic QS-406/F-01J tel: +420 572 537 558 / +420 572 537 605 e-mail: service@evektor.com / evektor@evektor.com http://www.evektor.com Page : 4/6 1.3.1.25 Attach the cooler to the lower engine cowling and connect the cold air inlet hose to the heat exchanger. Install the lower engine cowling. 1.3.1.26 Refill the operating fluids (coolant, oil) if they have been drained while

Show full text

accessing the bolts of the engine mount hinges (4, Fig. 3) according to the ROTAX Maintenance Manual MML-912 | PART NO.: 899196 or later. 1.3.1.27 Connect the battery. 1.3.1.28 Install the upper engine cowling. 1.3.1.29 Switch the electrical network on. 1.3.1.30 Carry out the engine test in accordance with the Pilot’s Operating Handbook (Chapter 4). Fig. 1 – Securing the engine against falling Legend to Fig. 1 1 Workshop crane 3 Engine 2 Suspension strap 4 Engine mount Letecká 1008, 686 04 Kunovice, Czech Republic QS-406/F-01J tel: +420 572 537 558 / +420 572 537 605 e-mail: service@evektor.com / evektor@evektor.com http://www.evektor.com Page : 5/6 Fig. 2 – Engine mount – position of fastening bolts Legend to Fig. 2 1 Bolt M10-35 3 Bolt M10-35 2 Bolt M10-35 4 Bolt M10-110 Letecká 1008, 686 04 Kunovice, Czech Republic QS-406/F-01J tel: +420 572 537 558 / +420 572 537 605 e-mail: service@evektor.com / evektor@evektor.com http://www.evektor.com Page : 6/6 Fig. 3 – Engine suspension Legend to Fig. 3 2 Influence on airplane documentation 2.1 Accompanying technical documentation Not affected. 2.2 Operation technical documents The authorized person will carry out the record in the Aircraft Logbook after the bulletin implementation: „Bolt replacement was performed in accordance with the Mandatory bulletin No. EV97-42a SR R1“, and he will add the date and signature. 3 Influence on weight and balancing Not affected. 1 Engine 5 Plug (4 pieces) 2 Engine mount 6 Lock washer (4 pieces) 3 Firewall 7 Cotter pin (4 pieces) 4 Bolt M10 (3+1 piece) 8 Muffler attachment bracket

All EVEKTOR EV-97R Eurostar service bulletins