EASA SIB NE-16-13: Continental Motors Inc. (Teledyne Continental) Reciprocating engines - Prohibited use of Sealant

What to do

Owners, operators, and maintenance personnel should consult and strictly follow Continental Motors Aircraft Engine Service Bulletin SB96-7D and Service Information Letter SIL-99-2C for approved materials and procedures. They must avoid using RTV or similar sealants on engine case halves, cylinder decks, and related components. Additionally, repair stations should refer to the applicable Instructions for Continued Airworthiness to ensure compliance with approved maintenance methods. No specific compliance deadlines are stated.

Summary

The Continental Motors Inc. (Teledyne Continental) Reciprocating engines - Prohibited use of Sealant is a Special Airworthiness Information Bulletin (SAIB NE-16-13) issued by the FAA. It addresses the improper use of certain sealants, such as RTV sealants, on Continental Motors, Inc. reciprocating engines, which can lead to engine failure. This bulletin applies to airplanes equipped with Continental Motors engines operating with AVGAS, excluding Continental Titan brand and Jet-A Diesel engines that may have different sealant requirements.

What changed

This SAIB introduces a warning against the unauthorized use of RTV and similar sealants during engine case half assembly and cylinder installation on Continental Motors reciprocating engines. It clarifies that these sealants are not approved and explains the risks of using them, including loosening of engine components and potential catastrophic engine damage. The bulletin also references specific Continental Motors service documents for proper installation procedures and approved materials.

Why it matters

This information is critical for aviation professionals because improper sealant use can compromise engine integrity, leading to failures that affect safety and reliability. Maintenance personnel and repair facilities must understand the risks to prevent costly engine damage and ensure compliance with manufacturer-approved procedures. Operators benefit from this guidance by avoiding unapproved practices that could result in operational disruptions or safety incidents.