FAA orders · airworthiness directive · historical

2013-07-12: Cylinder heads

FAA order 2013-07-12 is an airworthiness directive in force since April 30, 2013. The FAA's subject line: Cylinder heads. It names the Brp-Rotax 914 F2 engine: about 20 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: engine.

What it applies to as the FAA lists it

Kind of product: Engine
Makes: BRP--POWERTRAIN GMBH & CO KG
Models: 912 F2, 912 F3, 912 F4, 912 S2, 912 S3, 912 S4, 914 F2, 914 F3, 914 F4
Engine series: Brp-Rotax 914 F2 20 aircraft

Dates and paperwork

In force since: April 30, 2013
Published: April 15, 2013 (signed April 4, 2013)
Docket: FAA-2013-0263
Replaced by: 2013-15-19
Status: Historical
The FAA's document: Read the order on the FAA's site

The FAA's summary their words, unchanged

We are adopting a new airworthiness directive (AD) for certain BRP-Powertrain GmbH & Co KG Rotax 912 F2; 912 F3; 912 F4; 912 S2; 912 S3; 912 S4; 914 F2; 914 F3; and 914 F4 reciprocating engines. This AD requires a one-time visual inspection for excessive oil deposits or carbon deposits on the No. 2 and No. 3 spark plug center and grounding electrodes, and if found, replacement of the cylinder head before further flight. This AD was prompted by a report of certain No. 2 and No. 3 cylinder heads not manufactured to proper specification. We are issuing this AD to prevent excessive oil consumption, which could result in an in-flight engine shutdown, forced landing, and damage to the airplane.

The order itself the regulatory text, as published

Show the full text (4,202 characters)

Adoption of the Amendment 

	Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: 

PART 39--AIRWORTHINESS DIRECTIVES 

0 1. The authority citation for part 39 continues to read as follows: 

	Authority:  49 U.S.C. 106(g), 40113, 44701. 

Sec.  39.13  [Amended] 

0 2. The FAA amends Sec.  39.13 by adding the following new AD: 

2013-07-12 BRP-Powertrain GmbH & Co. KG (formerly BRP-Rotax GmbH & Co KG, Bombardier-Rotax GmbH & Co. KG, and Bombardier-Rotax GmbH): Amendment 39-17416; Docket No. FAA-2013-0263; Directorate Identifier 2013-NE-12-AD. 

(a) Effective Date 

	This airworthiness directive (AD) becomes effective April 30, 2013. 

(b) Affected ADs 

	None. 

(c) Applicability 

	This AD applies to the following BRP Powertrain GmbH & Co KG Rotax reciprocating engines: 
	(1) Rotax 912 F2; 912 F3; and 912 F4, from serial number (S/N) 4,413,013 up to S/N 4,413,017 inclusive. 
	(2) Rotax912 S2; 912 S3; and 912 S4, from S/N 4,924,468 up to S/N 4,924,491 inclusive. 
	(3) Rotax 914 F2; 914 F3; and 914 F4, from S/N 4,421,156 up to S/N 4,421,169 inclusive. 

(d) Reason 

	This AD was prompted by a report of certain No. 2 and No. 3 cylinder heads not manufactured to proper specification. The cylinder heads may have an oil leak in the intake channel in the area of the valve guide. There is the possibility that the heads have small machined through holes, which can 

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increase the oil consumption. We are issuing this AD to prevent excessive oil consumption, which could result in an in-flight engine shutdown, forced landing, and damage to the airplane. 

(e) Actions and Compliance 

	Unless already done, do the following actions. 
	(1) Within 5 flight hours or 20 days after the effective date of this AD, whichever occurs first, perform a one-time visual inspection of the center and grounding electrodes of both top and bottom spark plugs on cylinder 2, and cylinder 3, for unusual deposits (excessive carbon or oil). Any excess indicates the cylinder head is not manufactured to proper specification and is leaking oil into the combustion chamber. 
	(2) Before further flight, replace cylinder heads found to be not manufactured to proper specification. 
	(3) From the effective date of this AD, do not install any engine listed in the applicability of this AD on an airplane, unless the engine has been inspected and, depending on the findings, affected cylinder heads have been replaced as required by this AD. 

(f) Definitions 

	For the purpose of this AD, unusual deposits (excessive carbon or oil) is when: 
	(1) Carbon is a visual buildup of dark carbon deposits on the center and grounding electrodes as well as the immediate surrounding area, and 
	(2) Excessive oil is a visual buildup indicated by the presence of oil on the center and grounding electrodes as well as the immediate surrounding area, giving a wet appearance. 

(g) Alternative Methods of Compliance (AMOCs) 

	The Manager, Engine Certification Office, FAA, may approve AMOCs to this AD. Use the procedures found in 14 CFR 39.19 to make your request. 

(h) Related Information 

	(1) For more information about this AD, contact Frederick Zink, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781-238-7779; fax: 781-238-7199; email: frederick.zink@faa.gov. 
	(2) Refer to European Aviation Safety Agency Emergency Airworthiness Directive 2013-0055-E, dated March 6, 2013, and BRP- Powertrain GmbH & Co KG Rotax Aircraft Engines Alert Service Bulletin No. ASB-912-062, Revision 1 and ASB-914-044, Revision 1 (combined into one document), dated March 5, 2013, for related information. 
	(3) For service information identified in this AD, contact BRP- Powertrain GmbH & Co KG, Welser Strasse 32, A-4623 Gunskirchen, Austria, or go to: http://www.FLYROTAX.com. You may view this service information at the FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA. For information on the availability of this material at the FAA, call 781-238-7125. 

(i) Material Incorporated by Reference 

	None.

Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of October 7, 2026. Connections as data: /graph/directive/2013-07-12.json · aircraft systems.