MT-Propeller Service Bulletins

Service Bulletins

No. Content Date of Revision
(.pdf, 135k)
List of Service Bulletins
download this list as .pdf file
May 15, 2020
(.pdf, 1550k)
TBO von Verstellpropellern MTV
TBO of variable pitch propellers MTV
March 09, 2020
(.pdf, 1550k)
TBO for Hovercraft Applications March 05, 2020
(.pdf, 26k)
Fliehgewichte MTV-2-( )
Counterweights MTV-2-( )
February 02, 1987
(.pdf, 16k)
Steuergerät P-120-A (LTA # 89-108)
Control Unit P-120-A (Germany AD)
March 22, 1989
(.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
(.pdf, 19k)
Ankerschrauben in MTV/MTE Propellern
Lag Screws in MTV/MTE propellers
January 24, 1991
(.pdf, 16k)
Notverfahren für elektr. Verstellpropeller (LTA # 92-367)
Emergency Procedures for electrically variable pitch propellers (German AD)
October 15, 1992
(.pdf, 19k)
Stellmotoren - Austausch (LTA # 93-088/2)
Replacement of the electric pitch change motors (German AD)
October 06, 1995
(.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
(.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
Installationsliste für Holz-Composite Festpropeller zugelassen in Frankreich
Installationlist for fixed pitch propellers certified in France (Cancelled!)
June 10, 2003
Installationsliste für MT-Verstellpropeller zugelassen in Frankreich
Installation list for MT variable pitch propellers certified in France (Cancelled!)
June 18, 2003
(.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
(.pdf, 338k)
Liste der möglichen Spinner an MT-Propellern
List of possible spinner assys for MT-propellers
February 19, 2020
(.pdf, 840k)
Liste der möglichen Regler für MT-Propeller
List of possible governors for MT-Propellers
May 15, 2020
(.pdf, 250k)
Mögliche Enteisungssysteme an MT-Propellern
Possible de-ice systems for MT-propellers
February 19, 2020
(.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
April 22, 2015
(.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
(.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
(.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
(.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
(.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
(.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
(.pdf, 53k)
Mounting torque of 9/16 inches-18 UNF stop nuts March 13, 2007
(.pdf, 79k)
PU Tape removal on CRLD193-109 and CRLD118-119a propeller blades January 09, 2008
(.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
(.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
(.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 R4
(.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.
March 02, 2020
(.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
(.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
(.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
(.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.
May 25, 2018
(.pdf, 105kb)
Recommended RPMS for reduced long time wear in the blade bearing Empfohlene Drehzahl für weniger Verschliess im Blattlager Affected Propeller: MTV-Propeller models MTV-1-A/LD160-03 and MTV-1-A/LD170-05 which are operated in combination with Limbach L2000( ) / L2400 engines in airframes H36, RF5, G109b but not limited to those and had an engine overhaul or exchange after January 2014. November 19, 2019
36 R2
(.pdf, 75kb)
Engine Oils to be used for MT-Propellers
Affected Propeller: All propellers using turboprop or reciprocating (also Diesel Jet A1) engines
October 25, 2019