MT-Propeller Service Bulletins

Service Bulletins


Download all Service Dokuments in zip.files (only for certified Service Stations)

No. Content Date of Revision
List
(.pdf, 135k)
List of Service Bulletins
download this list as .pdf file
June 11, 2024
1R9
(.pdf, 1550k)
TBO von Verstellpropellern MTV
TBO of variable pitch propellers MTV
June 11, 2024
1-1R4
(.pdf, 1550k)
TBO for Hovercraft Applications December 11, 2023
2A
(.pdf, 26k)
Fliehgewichte MTV-2-( )
Counterweights MTV-2-( )
February 02, 1987
3
(.pdf, 16k)
Steuergerät P-120-A (LTA # 89-108)
Control Unit P-120-A (Germany AD)
March 22, 1989
4A
(.pdf, 15k)
Ankerschrauben in MTV-1 und MTV-6-C (LTA # 90-214/2)
Lag Screws in MTV-1 and MTV-6-C (German AD)
April 08, 1993
5
(.pdf, 19k)
Ankerschrauben in MTV/MTE Propellern
Lag Screws in MTV/MTE propellers
January 24, 1991
6
(.pdf, 16k)
Notverfahren für elektr. Verstellpropeller (LTA # 92-367)
Emergency Procedures for electrically variable pitch propellers (German AD)
October 15, 1992
7A
(.pdf, 19k)
Stellmotoren - Austausch (LTA # 93-088/2)
Replacement of the electric pitch change motors (German AD)
October 06, 1995
8B
(.pdf, 177k)
Genauere Vorflugkontrolle für MT ( ) ( ) ( ) - ( ) und MTV-( ) (EASA AD No. 2006-0345)
More precise preflight inspection for MT ( ) ( ) ( ) - ( ) und MTV-( ) (EASA AD No. 2006-0345)
March 08, 2006
9
(.pdf, 10k)
Befestigung (Anzugsmomente) und Überprüfung der Installation für Holz-Composite Festpropeller
Inspection of installation and torque of mounting bolts for fixed pitch wood composite propellers
November 15, 1994
10A
Installationsliste für Holz-Composite Festpropeller zugelassen in Frankreich
Installationlist for fixed pitch propellers certified in France (Cancelled!)
June 10, 2003
11F
Installationsliste für MT-Verstellpropeller zugelassen in Frankreich
Installation list for MT variable pitch propellers certified in France (Cancelled!)
June 18, 2003
12D
(.pdf, 69k)
Propellernabe, Rißprüfung und Nachbearbeitung oder Ersatz der Nabe von MTV-3-B-C mit L250-21 Blättern an M-14-P/M-14-PF Motoren (LTA # 97-006/5)
Propellerhub, crack inspection and rework or replacement of the hub MTV-3-B-C with blades L250-21 at engines M-14-P/M-14-PF (German AD)
December 08, 1998
13R5
(.pdf, 338k)
Liste der möglichen Spinner an MT-Propellern
List of possible spinner assys for MT-propellers
July 22, 2021
14R10
(.pdf, 840k)
Liste der möglichen Regler für MT-Propeller
List of possible governors for MT-Propellers
May 09, 2023
15R5
(.pdf, 250k)
Mögliche Enteisungssysteme an MT-Propellern
Possible de-ice systems for MT-propellers
October 27, 2021
16R1
(.pdf, 2,52MB)
Liste der Propeller-Installationen, für die ein Nachweis nach JAR-P-60(b), 160(b), 190 und 220 erbracht ist
List of MT-Propeller installations, which are in compliance with JAR-P-60(b), 160(b), 190 and 220
October 12, 2021
17A
(.pdf, 20k)
Propellerblätter, Prüfung des Anzugsmonents und gegebenenfalls Ersatz der Blattwurzel-Ankerschrauben bei MTV-3-B-C/L250-21, MTV-9-B-C/CL260-27 oder CL250-27 (LTA 1999-081/2, 1999-082/2)
Propeller blades, inspection of the torque and if applicable, replacement of the blade root lag screws of MTV-3-B-C/L250-21, MTV-9-B-C/CL260-27 or CL250-27 (German AD)
March 05, 1999
18
(.pdf, 12k)
MTV-25-1-D-C-R(M)/CR165-06 Austausch von Federn für Luftschiff Anwendung
MTV-25-1-D-C-R(M)/CR165-06 Replacement of springs for Airship Application
July 26, 2000
19
(.pdf, 215k)
Neue Steuergeräte P-120-A: Veränderte Bedienelemente und Bedienung.
New electric control units P-120-A: Modified control elements and operational procedures.
February 28, 2003
20
(.pdf, 21k)
Inspektion der Ankerschrauben, die zur Produktion bis 1989 verwendet wurden
Inspection of lag screws, which were used for production until the year 1989
January 26, 2004
21A
(.pdf, 62k)
Nachziehen der Blattvorspannung Alle Halter / Betreiber von Flugzeugen MT-Verstellpropeller MTV-9-B-S installiert auf einem SMA SR 305-230 Motor
Retorque of blade preload nut All owners / operators of aircrafts using the variable pitch propeller MTV-9-B-S installed on engine SMA SR 305-230
August 22, 2012
22
(.pdf, 44k)
Compatibility of MT-Propeller Governors P-980-16 (28 VDC System) or P-980-11 (14 VDC System) according to MT-Propeller Service Bulletin 14 (latest issue) March 13, 2007
23 R1
(.pdf, 53k)
Mounting torque of 9/16 inches-18 UNF stop nuts October 18, 2021
24
(.pdf, 79k)
PU Tape removal on CRLD193-109 and CRLD118-119a propeller blades January 09, 2008
25
(.pdf, 105k)
MT-Propeller –B Flange installation Hardware Inspection on Lycoming Engines using SAE No. 2 mod ½” bolts and nuts of Part No. C-060 and C-061 and installed between Januar 2008 and July 2009 during manufacturing and/or Overhaul. April 30, 2010
26 R5
(.pdf, 71 k)
De-Ice Wiring on MTV-27-1 Propeller series with Dual-Element De-Icing Boots (3 wires). Length of the Spinner Fixture Screws MTV-27-1 Propeller series equiooed with dual-elements boots. November 23, 2015
27
(.pdf, 305 k)
MT-Propeller Governors Inspection and Upgrade for Governor Models manufactured from May 2012 till Jan 2013 or Overhauled / Repaired with a new governor base from May 2012 till Jan 2013 February 20, 2013
28
(.pdf, 320 k)
Installation of a Strake on TBM 700/850 series aircraft June 10, 2014
29 R2
(.pdf, 740 k)
Splitted Retaining Ring Position Inspection which holds the blade in the Propeller hub.
Affected propellers:
MTV-33-1-A and MTV-34-1-A ,manufactured before June 2014
March 08, 2017
30 R9
(.pdf, 140 k)
Alert Service Bulletin:

Replacement of Blade Lag Screw of a certain production lot.

Affected propellers:

a) MTV-5-(), MTV-9-(), MTV-11-(), MTV-12-(), MTV-14-(), MTV-15-(), MTV-16-(), MTV-17-(), MTV-18-(), MTV-20-(), MTV-23-(), MTV-27-()
manufactured from Nov 2013 until October 2014 with Lag Screw type A-983-C-85 are affected.

b) All overhauled or repaired propellers from Nov 2013 until end of October 2014 with new installed lag screws during overhaul, as applicable.
January 15, 2024
31
(.pdf, 184 k)
MT-Propeller Governors Inspection and Upgrade for Governor P-8XX-3 Models defined by Serial Number Manufactured from April 2010 until July 2013.
To all Owners/Operations of MT-Propeller Governor
Affected Types:
All Governors listed by type and serial number on page 3 and 4 which were manufactred from April 2010 until July 2013 installed on direct drive engines modified with electronic ignition or higher compression pistons.
August 29, 2016
32
(.pdf, 1.2MB)
Replacement of Pitch Change Pins of Constant Speed Propellers
Affected Propellers:
All constant speed propellers 12 years or older with noticeable corrosion on steel parts, like counterweight bodies, counterweight modules or screws
May 30, 2017
33
(.pdf, 105kb)
Replacement of the Blade Bearing A-1540 during Overhaul Affected Propeller: MTV-9-B-S / 198-58B installed on Cessna 182/ Socata TB20 with SMA SR305-230-01 Diesel engine
May 29, 2018
34 R1
(.pdf, 105kb)
Leading Edge Inspection
Affected Propeller: MTV-33-1-A /( )-( ) - TCDS EASA-P.048 MTV-34-1-A /( )-( ) - TCDS EASA P.049 , which are manufactured between 1.September 2017 until 1.June 2018.
July 15, 2020
35 R2
(.pdf, 105kb)

Recommended RPMS for reduced long time wear in the blade bearing. Empfohlene Drehzahl für weniger Verschliess im Blattlager.
Affected Propeller: MT-Propeller model MTV-1-A/L160-03 which is operated in combination with a Limbach L2000( ) engine in airframes H36, RF5, G109 or TAIFUN 17E but not limited to those airframes and had an engine overhaul or exchange after January 2014.

Betroffene Propeller:  MT-Propeller Modell MTV-1-A/L160-03, das in Kombination mit dem Limbach Motor L2000( ) unter anderem in den Flugzeugmodellen H36, RF5, G109 und TAIFUN 17E betrieben wird und eine Motorüberholung oder einen Motoraustausch nach Januar 2014 hatte.

August 12, 2020
36 R3
(.pdf, 75kb)
Engine Oils to be used for MT-Propellers
Affected Propeller: All propellers using turboprop or reciprocating (also Diesel Jet A1) engines
May 25, 2020
37R2
(.pdf, 165kb)
MT-Propeller Piston O-Ring replacement
Affected Propeller: All Owners / Operators of MT-Propeller MTV-5-1-D-C-F-R(A)/( )-( ) which are installed on Allison / Rolls-Royce M250-B17( ) engine.
Sept 26, 2022
38
(.pdf, 165kb)
MT-Propeller Hub Inspection
Affected Propellers: All Owners / Operators of MT-Propeller MTV-27-1-E-C-F-R(G)/CFRL240-55d which are installed on Mitsubishi MU-2B-( ).
April 24, 2023
39 i.p.

40
(.pdf, 463kb)
MT-Propeller green Piston O-Ring and Piston Backup Ring Replacement
Affected Propellers: All Owners / Operators of MT propeller models MTV-5 / -16 / -27 / -37 / -47 installed on turbine engines from Pratt & Whitney, Honeywell, Rolls Royce and GE Aviation.
April 09, 2024