M601T

M601T ENGINE

M601T/1a
Inspection, whether holes in the de-aerating pipe union, which vent oil tank in negative load factor flight, are through.
Oct 27, 1993

M601T/2a
Cancellation of the formerly permitted gas generator idle speed of 58 to 59 %.
Sep 28, 1994

M601T/3a
Introduction of the siphon into the scavenge branch of the oil system of WALTER M601T engine installed in the PZL-130TB ORLIK aircraft. In Czech language only.
Sep 12, 1995

M601T/4a
Addition to the WALTER M601T Engine Maintenance Schedule and WALTER M601T Engine Maintenance Manual concerning oil change after 12 months. In Czech language only.
Dec 17, 1996

A M601T/5a
Limited life of gas generator turbine blades Dwg. No. M601-3372.6 of WALTER M601T engines, Serial No. 951001.
Mar 12, 1997

A M601T/6a
Replacement of the spring of the pressure reducing valve I
on the LUN 7816-8 propeller speed governor.
Nov 19, 1997

A M601T/7a
Exchange of relief valve for fuel control unit LUN 6590.03, LUN 6590.04, LUN 6590.05, LUN 6590.06.
Oct 5, 2000

M601T/8a
Replacement of the spring of the pressure reducing valve I on the LUN 7816-8 propeller speed governor.
Feb 26, 2001

M601T/9a
Improvement of the Electric Contact Between Spark Plug and Ignition Cable of the UNISON Ignition exciter.
Jan 10, 2002

A M601T/10a
Replacement of the LUN 7816.01-8 Propeller Speed Governor.
Jan 10, 2002

M601T/11a
Termination of effectivity of Mandatory Bulletin No. M601T/10a, and introduction of inspection of the LUN 7816.01-8 Propeller Speed Governor.
Dec 17, 2005

M601T/11a R1
Termination of effectivity of Mandatory Bulletin No. M601T/10a, and introduction of inspection of the LUN 7816.01-8 Propeller Speed Governor.
Feb 11, 2008

M601T/12a
Issued WALTER M601T Operation Manual, Third issue dated Jan 25, 2008.
Apr 16, 2008