AviZone

               Aircraft high-tension magneto is a self-contained unit delivers high voltage to Spark plug, incorporating a coil, points and distributor. Coil having primary and secondary winding, step up the voltage to a spark-generating level, turn it into timed high tension electrical pulses, and sends it to the appropriate spark plug               Magnetos are fixed with manufacturer’s data plate  with either ‘L’ or ‘R’. The L or R does not refer to the position on the engine, but to the magnetos direction of rotation. In one instance, a left-hand rotation magneto was installed in the position where a right-hand rotation was specified. The result was a rough running engine with reduced power and the associated possibility of destructive detonation.              It is important to ins...

CESSNA 404       CONTINENTAL 520               Scheduled maintenance         24/09/2015                      Smoke from engine on start-up. Caused by a rag which had been inadvertently left inside the engine by a trainee engineer. Appropriate action has been taken. A pilot was asked to conduct a post-maintenance engine run follow rectification of an oil leak. Engine number one was started normally. On start of engine no.2 smoke was noted from the number 1 engine. After a short period of monitoring the pilot elected to shut down both engines and without further delay, exited the aircraft with the Fire Extinguisher and requested assistance. A fire extinguisher was discharged through the louvre at the rear of the upper engine cowling whilst another engineer gained access to the engine via the side access panel. Investigation Findings Once the engine cowling was o...

PIPER PA28   LYCOMING  360 FAMILY            22/08/2015                 Engine failure.            At 2 mins and 15 seconds (2nm north of the airfield and at approx. 1,250 ft) a massive bang was heard coming from the engine, instant power loss and Engine T&P’s went into the red and dropped straight down to no reading. Pilot declared a Mayday emergency (Engine Failure) still on Seething radio frequency (122.60), with the intention of returning to the airfield for an attempted force landing. Seething Air ground radio confirmed that runway 24 could be used and the Fire & Rescue team were on standby at the Alpha hold to follow us down the runway.         At around 1nm to the airfield and attempting to keep high and fast rather than low and slow the aircraft was still at around 800ft so continuous slide slipping and position changes were used, flaps wer...

SIL99-2C       INFORMATION LETTER  SUBJECT: SEALANTS, LUBRICANTS, AND ADHESIVES AUTHORIZED  PURPOSE : Provide current application of sealants, threading, lubricants, and                    adhesives.  COMPLIANCE : During engine installation, maintenance, overhaul or                             component repair or replacement.  MODELS AFFECTED : All CMI engine models operating with AVGAS fuel.              Lubricating oils qualified for use in Continental Motors, Inc. (CMI) gasoline engines are required to meet Society of Automotive Engineers (SAE) specifications. Recommended Oil Grade:  • Above 40°F ambient air, sea level SAE 50 or                                             ...

        INSTALLATION INSTRUCTIONS                Ref : CMI SIL 03-2C         Install spark plugs as follows, in addition to the instructions provided by the spark plug m anufacturer. 1. Handle spark plug leads with clean, dry hands. 2. Adjust the spark plug electrode to the gap recommended by the manufacturer. 3. Always install spark plugs with new copper gasket. 4. Sparingly apply anti-seize to the spark plug threads. DO NOT APPLY ANTI-SEIZE TO THE FIRST ROW OF THREADS. 5. Always use a six point deep well socket to install spark plugs. 6. Thread spark plug by hand into cylinder to within one or two threads of the gasket.  If this is  not possible, cylinder head threads or spark plug threads need to be cleaned. 7. Torque spark plugs to 300 - 360 in. lbs using a calibrated torque wrench. 8. Before installing the spark plug lead terminal, wipe it clean using a lint-free cloth  moistene...

          The FAA has issued  AD2012-24-09 on HET model TAO411 turbo chargers overhauled or repaired since August 29, 2012, using a turbine wheel, P/N 410188- 0019, serial number H120716 through H121988.       Affected turbochargers are to be replaced before further flight.           The AD does provide for special flight permits provided that the flight is limited to three hours, the turbocharger boost is set to “Off” in the cockpit if applicable and the wastegate for the turbocharger is safety wired in the open position.                 This AD affects the Cessna Model T182T. Cessna has determined that no aircraft have been factory delivered and that no spares engines or spares turbochargers have been sold by Cessna Service Parts and Programs that are affected. Cessna Single Engine Service Letter SEL-81-02 Revision 1: Transmittal of HET Alert Service Bulletin No.048...

   FAA issued SAIB: NE-13-15  Dated : February 8, 2013 on  Engine Controls : Throttle and Mixture Control Levers   used on Continental.                           This Special Airworthiness Information Bulletin (SAIB) is  an airworthiness  concern related to certain throttle and mixture control levers. Affected engines include all IO-240,  IO-360, LTSIO-360, TSIO-360, IO-346, IO-470, GIO-470, TSIO-470, IO-520, GTSIO-520,  LIO-520, TSIO-520, IO-550, GIO-550, TSIO-550, and TSIOL-550 continuous flow, fuel  injected engines (except FADEC-equipped engines).                 The FAA has received reports from the field of throttle and mixture control levers loosening during  service, resulting in either a partial or complete loss of throttle and/ or mixture control. The subject  throttle and mixture control l...

               Before changing a filter it is necessary to consider all aspect, take a moment to examine the filter's base and gasket. Is it clean? Intact? Warped?          Is the new gasket on the new filter secure? It's best to find problems like this now, when you can just grab another filter, rather than wait until everything is back on the engine and it's a real pain to fix.                  Turn the filter over and give it a few raps to see if any thing is in there that shouldn't be. Sometime you may found little hunks of cardboard, tufts of lint and so forth come out of a brand-new filter.       Take a few moments to examine the filter adapter on the engine, too. Is it clean? Warped? Cracked? Dented? Is there an ancient filter gasket still clinging to it? Is the filter still within the use by date?           ...

It is important to remember that long-term preservation of engines can result in trapping large amounts of oil in the combustion chambers of one or more cylinders. For this reason, engines should not be rotated until all of the preservative oil is drained away. Failure to do so can result in damage to the piston, connecting rod, and crankshaft of the flooded cylinder. Remove seals and all desiccant bags. Remove cylinder dehydrators and plugs or spark plugs from upper and lower spark plug holes. Remove oil sump drain plug and drain the corrosion preventive mixture. Replace drain plug, torque and safety. Replace and safety the oil filter. Rotate propeller by hand several revolutions to remove preservative oil. Service the engine with lubricating oil. Service and install spark plugs and ignition leads. Service en-gine and aircraft in accordance with the manufacturer's instructions. Thoroughly clean the aircraft and engine. Perform visual inspection. Correct any disc...

                            Pratt & Whitney Canada (P&WC) has issued Service Bulletin (SB) No. 7630 affecting all Citation V and Ultra equipped with JT15D-5A and JT15D-5D engines.              A Commercial Support Program Notification (CSPN) No. 1006369R00 was also issued to offer assistance for operators to comply with the SB.                      The bulletin was issued following discovery of an unapproved bonding seal material application on some fuel cooled oil coolers (FCOCs).                  Operators are provided instructions to perform a one time inspection of the serial numbers found on the FCOCs for comparison to a list of suspect serials provided in Table 1 of the bulletin. The affected FCOCs are to be removed and replaced with another one not listed in Tabl...

                     In Winter Weather Conditions-Check Fan Rotation before Engine Start            All Models ATA: 71-00                       Operators are reminded that engines should be rechecked to ensure free fan rotation prior to an engine start in conditions with blowing snow, freezing rain or ice. Aircraft moved outdoors from heated hangars should also be given special attention. The heated surfaces can cause winter precipitation to rapidly melt and then re-freeze in engine inlets as the airplane is chilled to ambient temperatures outside. Nearly every year, Citation Customer Service receives reports of frozen engine fans due to ice buildup in winter weather events.                    Caution: To prevent possible engine damage from ingestion of ice, do not chip or scrape ice or sno...

             Champion Aerospace issued a SB covering Slick Magnetos SB1-12 after identifying a condition in the point assemblies of magnetos that may lead to decreased service life.          The contacts are exhibiting accelerated wear in-service. The typical symptoms are RPM drop during a magneto check, difficulty starting, rough running engine and/or unstable point timing during initial installation.      Cessna issued mandatory compliance Service Letters SEL-74-01 for Pre 1996 and earlier Single Engine Aircraft, SEL-74-02 for 1996 and on Single Engine Aircraft and MEL-74-01 for all Multi Engine Aircraft to transmit the Slick Service Bulletin SB1-12. The Cessna Service Letters require the replacement of affected magnetos or affected point assemblies within the next 25 hours of operation or at the next scheduled maintenance, whichever occurs first. Cessna will provide warranty coverage in accordance with...

                 CASA issued AIRWORTHINESS BULLETIN  Piston Engine Oil & Filter Element - Inspection AWB 85-013 Issue : 1  Date : 14 November 2012                       Applicability :   All aircraft piston engines - particularly those equipped with “disposable” or “spin-on” oil filtration “paper” element cartridges.                         Purpose :   Advise all aircraft owners, operators and maintenance personnel to cut open the canister of disposable oil filters and examine the element and to emphasise the importance of thorough oil filter element inspections and proper evaluation of filter debris to assist in the determination of engine serviceability and need for corrective action. Background                             Cl...