Service Bulletins & NPRMs

Browse through FAA service bulletins, NPRMs, etc., below. | Switch to Piper ADs (Airworthiness Directives) by clicking here.

Continental Issues Mandatory Service Bulletin for Potential Crankshaft Counterweight Assembly Error

On Feb. 17, Continental released Mandatory Service Bulleting MSB23-01A regarding a possible error...

Mandatory Service Bulletin for Certain Millennium Cylinders

News, Service Bulletins & NPRMs

Superior Air Parts has issued a Mandatory Service Bulletin requiring the replacement of intake valves in certain Millennium cylinders and rebuilt/overhauled cylinders used in Continental 470-, 520-, and 550-series engines. The...

Piper Issues Revised Service Bulletin for Wing Rib Inspection

Service Bulletins & NPRMs

On Nov. 29, 2022, Piper Aircraft issued Service Bulletin SB1161C for wing rib inspections. The SB...

FAA Revisits Continental Engine AD, Asks for Feedback

Piper Airplane ADs Airworthiness Directives, Service Bulletins & NPRMs

Cylinder Cracking Possibly Ongoing in Continental 500-Series Engines, Even Post-AD Actions On Oct....

FAA Issues Service Bulletin Updating Piper Wing Spar Guidance

News, Piper Airplane ADs Airworthiness Directives, Service Bulletins & NPRMs

On Oct. 19, the FAA released a SAIB (Special Airworthiness Information Bulletin) regarding wing...

Piper Announces Wing Inspection Panels Kit to Access Fuel Tank Sending Units

News, Service Bulletins & NPRMs

On Sept. 30, Piper released Service Spares Letter No. 503 announcing the availability of a kit that adds an inspection/access panel to the lower wing skin on both sides of affected aircraft. When installed, the panels permit...

FAA Adds Oil Options for Lycoming Via SAIB

News, Service Bulletins & NPRMs

On Sept. 26, the FAA issued Special Airworthiness Information Bulletin (SAIB) NE-06-31R6, which alerts owners of aircraft with certain Lycoming engines about changes related to lubricating oils. The first concerns the name...

Lycoming: Some Models Need T-Bolt Clamp Checked

News, Service Bulletins & NPRMs

Lycoming in late April issued a Service Bulletin alerting certain owners that some engines...

Continental: S-1200 Series Magnetos Need New Grease

News, Service Bulletins & NPRMs

Continental revised a Service Bulletin in late May alerting engine owners that some of the...

FAA Issues AD for Piper PA-34-200 Bolt

News, Piper Airplane ADs Airworthiness Directives, Service Bulletins & NPRMs

The FAA has adopted a new airworthiness directive (AD) for certain Piper PA-34-200 airplanes, establishing a 500-hour life limit for a certain bolt. In the preceding NPRM, the FAA proposed to require establishing a 500-hour life...

FAA Issues Service Bulletin to Reiterate Avidyne DFC90 / Garmin Check

Service Bulletins & NPRMs

SUBJ: Autopilot SystemSAIB: AIR-22-07Date: April 6, 2022 By the FAA This Special Airworthiness Information Bulletin (SAIB) is to inform owners and operators of aircraft equipped with Avidyne Corporation (Avidyne) DFC90...