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STEMME S10-VT Maintenance Manual

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This Maintenance Manual is based on the original in the German language.
The technical content of this document is approved under authority of the DOA, ref.: EASA.21J.250.
Airframe:
Type: STEMME S10-VT
EASA-Type Certificat: EASA.A.054
11-
Serial No.:
Registration:
A40-11-121_03Jul2023_01.docx
STEMME GmbH - Flugplatzstraße F2, Nr. 7 - 15344 Strausberg / Germany
MAINTENANCE MANUAL
Powered
Sailplane STEMME S10-VT
Document Number: A40-11-121
Date of Issue: Jul. 03, 2023
Engine:
Type: ROTAX 914 F2/ S1
LBA - Data Sheet No.: 5006
Engine Serial No.:
Doc. No. A40-11-121

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Summary of Contents for STEMME S10-VT

  • Page 1 STEMME GmbH - Flugplatzstraße F2, Nr. 7 - 15344 Strausberg / Germany MAINTENANCE MANUAL Powered Sailplane STEMME S10-VT Document Number: A40-11-121 Date of Issue: Jul. 03, 2023 This Maintenance Manual is based on the original in the German language. The technical content of this document is approved under authority of the DOA, ref.: EASA.21J.250.

  • Page 2: Record Of Amendments

    Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page ii Amendment No.: 01 date: Jul 08, 2024 0.1 Record of Amendments Any amendments of this manual must be recorded in the following table, except for: • installation status of optional equipment, for optional equipment refer to section 9, •...

  • Page 3: List Of Effective Pages

    Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page iv Amendment No.: 01 date: Jul 08, 2024 0.2 List of Effective Pages This list is only valid for the Serial No. specified on title page. The list contains all amendments of the Maintenance Manual, effective until final approval of this Serial No.
  • Page 4 Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page v Amendment No.: 01 date: Jul 08, 2024 Page Am. No. Date Page Am. No. Date Page Am. No. Date JUL 03, 2023 7-21 JUL 08, 2024 JUL 03, 2023...

  • Page 5: Table Of Contents

    Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page vi Amendment No.: 01 date: Jul 08, 2024 0.3 Contents     Record of Amendments     List of Effective Pages     Contents General Remarks on Maintenance  ...
  • Page 6 Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page vi Amendment No.: 01 date: Jul 08, 2024 0.3 Contents     Record of Amendments     List of Effective Pages     Contents General Remarks on Maintenance  ...
  • Page 7 Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page vii Amendment No.: 01 date: Jul 08, 2024 Airworthiness Limitations Section         General     Maintenance Limitations     4.2.1 Paint Finish     Component Replacement and Overhaul Limitations  ...
  • Page 8 Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page viii Amendment No.: 01 date: Jul 08, 2024     Drainage and Ventilation Holes 6-12     Tightening Torques of Screwed Joints: 6-13 Maintenance Instructions, Tolerances and Adjustment Data for  ...

  • Page 9: General Remarks On Maintenance

    1. General Remarks on Maintenance The legal owner of the STEMME S10-VT is obliged to ensure that, according to the specific national laws and regulations, the maintenance of the aircraft follows the instructions of this manual. Among others, there are ...

  • Page 10: Conversion Table

    Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page 1-2 Amendment No.: 01 date: Jul 08, 2024 In case of any incident endangering airworthiness the manufacturer must be informed immediately. Maintenance work must be performed by qualified personnel.
  • Page 11 Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page 3-46.1 Amendment No. 01 Date: Jul 08, 2024 Fig. 3.7.h.1: Fire Warning Effectivity: S/N 11-001 up to S/N:11-125 Doc. No. A40-11-121 A40-11-121_03Jul2023_01.docx...
  • Page 12 Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page 3-46.2 Amendment No. 01 Date: Jul 08, 2024 Fig. 3.7.h.2: Fire Warning Effectivity: S/N 11-126 and subsequently Doc. No. A40-11-121 A40-11-121_03Jul2023_01.docx...

  • Page 13: Airworthiness Limitations Section

    AMP will done in full responsibility of the owner/operator. The listed revisions of the chapter 4, including this revision are approved. The approval note will be done by the Stemme design organisation with reference to the Agency Approval. The latest approved revision applies to all registered STEMME S10-VT.
  • Page 14 Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page 5-6 Amendment No. 01 Date: Jul 08, 2024 100 hr Inspections (airframe) In addition to the annual inspection specific inspection tasks are required also every 100 hr. of flight operating time.
  • Page 15 Federal Aviation Regulations that apply to N-registered STEMME aircraft. For instructions pertaining to maintenance of other equipment installed in the aircraft, please refer to Annex A, Supplementary Instructions for Maintenance and Care, Maintenance Instructions.

  • Page 16: Unscheduled Maintenance

    Compliance with Airworthiness Directives is mandatory. STEMME recommends for owners and operators, as a matter of prudence and flight safety, to validate promptly all individual aircraft relevant Service Bulletins and depending on his own decision to comply fully. A corresponding record of the decision must be done in the aircraft records.
  • Page 17 No maintenance checklist and table of requirements can replace the good judgment of a certified airframe and powerplant mechanic. STEMME urges owners and operators, as the ones primarily responsible for the airworthiness of the airplane, to select only qualified and authorized maintenance persons who have or can obtain adequate qualification and experience for STEMME and ROTAX products.

  • Page 18: Wing

    Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page 5-14 Amendment No. 01 Date: Jul 08, 2024 5.4 Check List for Periodical Inspections NOTE: Read maintenance instructions in sections 6 and 7 before carrying out adjustments! Additionally to the maintenance instructions, these sections indicate special maintenance intervals (2 years) allowable for some items of the annual inspection program in the following check list.
  • Page 19 Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page 5-15 Amendment No. 01 Date: Jul 08, 2024 refer to Sign-off Type and Subject of Inspection section 9. Inspect L'Hotellier-connectors of aileron control rod 7.3.2 according to manufacturer instructions (Annex A).

  • Page 20: Fuselage

    Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page 5-16 Amendment No. 01 Date: Jul 08, 2024 refer to Sign-off Type and Subject of Inspection section 4. Check condition of control assy in center fuselage. 7.3.1 5. Check swaged terminals of all control rods in center fuselage.
  • Page 21 Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page 5-17 Amendment No. 01 Date: Jul 08, 2024 refer to Sign-off Type and Subject of Inspection section 6. Check fuel shutoff valve, fuel- check- valves and drainer. X 7.4.6.2 Check fire- wall penetration assy of supply and return lines for tight connection and leakage.
  • Page 22 Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page 5-18 Amendment No. 01 Date: Jul 08, 2024 refer to Sign-off Type and Subject of Inspection section 20. Remove all spark plugs and check for spark plug defects X 7.4.1.14 (deposits, excessive wear melting, ...).
  • Page 23 Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page 5-19 Amendment No. 01 Date: Jul 08, 2024 refer to Sign-off Type and Subject of Inspection section 7. Cut old oil filter without producing any metal chips and 7.4.2.4...
  • Page 24 7. Check condition of firewall sheets. X 7.4.8.3 5.4.15 Propeller For the scheduled maintenance tasks of the Variable Pitch Propeller Stemme P/N 11AP-V refer to the latest revision of the Component Maintenance Manual - Variable Pitch Propeller (Stemme Doc.-No.: P500-912860 in the latest revision).
  • Page 25 Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page 5-21 Amendment No. 01 Date: Jul 08, 2024 refer to Sign-off Type and Subject of Inspection section 3. Check main landing gear tires for condition and creep 7.5.1 markings.
  • Page 26 Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page 5-22 Amendment No. 01 Date: Jul 08, 2024 refer to Sign-off Type and Subject of Inspection section 3. Check condition and function of switches. 7.7.1 4. Check of main battery. Observe maintenance instructions 7.7.2...

  • Page 27: Engine

    Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page 6-13 Amendment No. 01 Date: Jul 08, 2024 6.8 Tightening Torques of Screwed Joints: The tightening torques listed below applies to hexagon nuts, hexagon bolts and hexagon socket screws of quality class 8.8 or higher:...

  • Page 28: Installation

    Engine Type 914 Series” (Annex E) and "Maintenance Manual (Heavy Maintenance) for ROTAX Engine Types ROTAX 912 and 914 Series”. Procedures affected by the modifications made for the S10-VT are included in this section. Otherwise a reference to the relevant section in the original Maintenance Manuals given above is indicated.
  • Page 29 Information provided by the "Maintenance Manual (Line Maintenance) for ROTAX Engine Type 914 Series” will remain valid in an analogous sense. Spare parts for the modified waste-gate-control can only be supplied by STEMME. a) Check the components In particular make sure that the whole waste-gate-control (cable, waste-gate inclusive the swiveling lever) moves smooth and easily.
  • Page 30 According to the "Maintenance Manual (Line Maintenance) for ROTAX Engine Type 914 Series” the check of compression follows the pressure difference method. To perform this method a locking pin (Stemme P/N: 500169) can be screwed in the clutch to lock the freewheel, allowing adjustment of the ignition T.D.C. by means of the propeller.

  • Page 31: Lubrication System

    Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page 7-12 Amendment No. 01 Date: Jul 08, 2024 7.4.1.18 Inspection of Engine Mountings Check upper and lower engine mountings frames for damages. Repair damage of the paint and remove corrosion.

  • Page 32: Cooling System

    Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page 7-13 Amendment No. 01 Date: Jul 08, 2024 7.4.2.5 Turbocharger Oil Sump Assembly - Inspection  See »Service Intruction ROTAX SI-914-039 Introduction of a new oil sump assy. for ROTAX® Engine Type 914 (Series)«, chapter 3.4.1, (Annex E).

  • Page 33: Air Induction System

    Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page 7-14 Amendment No. 01 Date: Jul 08, 2024 7.4.3.2 Rinsing of Cooling System  See "Maintenance Manual (Line Maintenance) for ROTAX Engine Type 914 Series” (Annex E) 7.4.3.3 Coolant Renewal Additionally, to instructions of "Maintenance Manual (Line Maintenance) for ROTAX Engine Type 914 Series”:...

  • Page 34: Fuel System (Fig. 3.4.6)

    (fibres fall off when touched), holey or fray. Check condition of spring clamps. Renewal of Heat Insulation Tape Heat insulation tape: see section 3.4.5, available from STEMME:  remove spring clamps and insulation tape  Fix beginning of new tape by means of a suitable glue ...
  • Page 35  loosen clamps of fuel lines and remove filters in LH and RH supply line.  install new filter using clamps of original type (spare parts available from STEMME) Check fuel pump assy in LH and RH L/G bay for proper installation, condition and routing of lines (kinks), for leakage of terminals and check valves and tight fit of clamps.
  • Page 36 Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page 7-17 Amendment No. 01 Date: Jul 08, 2024 Check of Fuel Pumps  See »Maintenance Manual (Heavy Maintenance) for ROTAX Engine Type 914 Series« (separate document)  Check the pump performance of the fuel pump. With a pressure difference of approx. 0.25 bar (3.6 psi), the fuel pump is pumping at approx.

  • Page 37: Fire Protection

    Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page 7-18 Amendment No. 01 Date: Jul 08, 2024 Check of Engine Control and Indication Sensors  See "Maintenance Manual (Heavy Maintenance) for ROTAX Engine Types 912 and 914 Series”...

  • Page 38: Engine Cowlings

    0.2 in. ± 7.4.10 Propeller For Maintenance Instructions, Tolerances and Adjustment Data for the Variable Pitch Propeller Stemme P/N 11AP-V refer to the latest revision of the “Component Maintenance Manual – Variable Pitch Propeller” (Stemme Doc.-No.: P500-912860). 7.4.11 Drive Shaft System System description: See section 3.4.11...

  • Page 39: Front Gear

    Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page 7-20 Amendment No. 01 Date: Jul 08, 2024 Check of Cardanic Rubber Disc Joints Check condition (cracks and embrittlement of rubber) and tight screw connections of cardanic rubber disc joints on the clutch and on forward drive shaft.

  • Page 40: Propeller Positioning

    Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page 7-21 Amendment No. 01 Date: Jul 08, 2024 Check of Magnet Screw Remove magnetic screw from the lower right front wall of the gear housing and inspect screw for chips possibly collected.
  • Page 41 Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page 7-29 Amendment No. 01 Date: Jul 08, 2024 7.7.5 Ignition Switch The ignition switch needs to be inspected according to the following instruction after 2000 hours of service.  Uninstall the Ignition Switch ...

  • Page 42: Communication And Navigation Equipment

    Maintenance Manual STEMME S10-VT Date of Issue: Jul. 03, 2023 Page 7-30 Amendment No. 01 Date: Jul 08, 2024 7.8 Communication and Navigation Equipment Description: See section 3.8 The following points must be observed during inspection and scheduled maintenance:  Check, if Com- and Nav-equipment installed correspond to the equipment lists.

  • Page 43: List Of Special Tools

    Date: Jul 08, 2024 10. List of Special Tools The following list includes tools, which may be required for maintenance of the S10-VT in addition to standard tools normally available in facilities performing maintenance on light a/c. • Precision protractor for propeller blade adjustment •...

  • Page 44: List Of Maintenance Documents For Parts Being Approved Independently From The Aircraft

    • Procedural instruction “Dynamic balancing of the STEMME S 10 powered glider propeller in the S10-V and S10-VT models“ – Stemme Doc,.No.: A17-10AP-V/2-E, latest revision. • "Minor repair to components of fibrous composite material" - a repair guide for STEMME S10 (Stemme Doc.- No.: A35-10SMR, latest revision) •...

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