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Showing posts from April, 2015

CONTINENTAL MOTORS - SEALANTS, LUBRICANTS, AND ADHESIVES

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                                                     multi-viscosity  • Below 40°F ambient air, sea level SAE 30 or multi-viscosity               NOTE: See  SIL99-1 (latest version) for preservation information.  CMI recommends engine oil be drained and replenished every 25 hours of operation or 4 months for engines that incorporate an oil screen

Prevent Misrigging Mistakes

Verify correct directional travel of controls and trim                 The problem               Incorrect rigging of flight control and trim systems has led to in-flight emergencies, accidents,     and even deaths.               Four such mishaps within a 2-year span share common safety issues:    o Maintenance personnel who serviced or checked the systems did not recognize that the             control or trim surfaces were moving in the wrong direction.    o Pilots who flew the airplanes did not notice the control anomalies during their preflight                   checks.              Anyone can make mistakes. In some cases, the mechanics who performed the work   incorrectly were highly experienced. Related incident and accidents:             In December 2014, the pilot of a Cessna T182T airplane experienced extreme nose-down control forces on the yoke shortly after takeoff. The airplane had just undergone maintenance on the elevator trim system, and the mechanic briefed