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2007-24-06: Electronic control unit (ECU)

FAA order 2007-24-06 is an airworthiness directive in force since December 13, 2007. The FAA's subject line: Electronic control unit (ECU). It names the Societe Ma SR305-230 engine: about 4 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: Societe de Motorisation Aeronautiques
Models: SR 305-230
Engine series: Societe Ma SR305-230 4 aircraft

Dates and paperwork

In force since: December 13, 2007
Published: November 27, 2007 (signed November 15, 2007)
Docket: FAA-2006-26102
Replaces: 2006-23-08
Status: Current
The FAA's document: Read the order on the FAA's site

The FAA's summary their words, unchanged

We are superseding an existing airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) provided by the European Aviation Safety Agency (EASA) to identify and correct an unsafe condition on SMA SR305-230 and SR305-230-1 reciprocating engines. The MCAI states the following: Over a period of time, the alteration of one electronic control unit (ECU) electronic component can cause a rapid uncontrolled power increase. Several occurrences have already been reported during engine start or during engine warm-up. This condition, if not corrected, could result in the loss of control of the aircraft if the pilot fails to react appropriately by switching to the mechanical backup mode. We are issuing this AD to prevent a rapid uncontrolled power increase and possible loss of control of the airplane.

The order itself the regulatory text, as published

Show the full text (4,215 characters)

2007-24-06 Societe de Motorisations Aeronautiques (SMA): Amendment 39-15272; Docket No. FAA-2006-26102; Directorate Identifier 2006-NE- 36-AD. 

Effective Date 

	(a) This airworthiness directive (AD) becomes effective December 13, 2007. 

Affected ADs 

	(b) This AD supersedes AD 2006-23-08, Amendment 39-14820. 

Applicability 

	(c) This AD applies to SMA SR305-230 and SR305-230-1 engines equipped with an electronic control unit (ECU) having one of the following part numbers (P/Ns): SF01160009-0, SF01160011-0, SP01160013, SP01160051-0, SP01160051-1, SP01160051-2, SP01160051-3, SP01160051-4, SP01160051-5, SP01160089-0, SP01160089-1, SP01160089- 2. These engines are installed on, but not limited to, Cessna 182 series airplanes with Supplemental Type Certificate SA03302AT applied. 

Reason 

	(d) European Aviation Safety Agency (EASA) AD 2007-0033, dated February 13, 2007, states: 

	Over a period of time, the alteration of one electronic control unit (ECU) electronic component can cause a rapid uncontrolled power increase. Several occurrences have already been reported during engine start or during engine warm-up. This condition, if not corrected, could result in the loss of control of the aircraft if the pilot fails to react appropriately by switching to the mechanical backup mode. 

	We are issuing this AD to prevent a rapid uncontrolled power increase and possible loss of control of the airplane. 

Actions and Compliance 

	(e) Unless already done, do the following actions: 

	(1) Before further flight, check if the ECU has a P/N listed in the Applicability section of this AD and a serial number (SN) of 131 or below, except SNs 70, 71, 83, and 88. If it does, then do not operate the engine. 

	(2) Remove and replace the ECU with an ECU P/N SP01160089-3, using SMA Service Bulletin (SB) No. SB-01-76-005, dated December 15, 2006. 

	(3) No later than 30 days after the effective date of this AD, replace all remaining affected P/N ECUswith an ECU P/N SP01160089- 3, using SMA SB No. SB-01-76-005, dated December 15, 2006. 

	(4) After the effective date of this AD, do not install a spare ECU having a P/N listed in the Applicability section of this AD as a replacement part on any SMA SR305-230 or SR305-230-1 engine. 

FAA AD Differences 

	(f) This AD differs from the Mandatory Continuing Airworthiness Information (MCAI) and/or service information as follows: 

	(1) EASA AD No. 2007-0033 requires compliance with the AD by March 31, 2007. 

	(2) This AD, written later, requires compliance within 30 days after the effective date of the AD. 

Other FAA AD Provisions 

	(g) Alternative Methods of Compliance: The Manager, Engine Certification Office, FAA, has the authority to approve alternative methods of compliance for this AD, if requested using the procedures found in 14 CFR 39.19. 

Related Information 

	(h) Refer to EASA AD 2007-0033, dated February 13, 2007, for related information. 

	(i) Contact Christopher Spinney, Aerospace Engineer, Engine Certification Office, FAA, Engine and Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; e-mail: [email protected]; telephone (781) 238-7175; fax (781) 238-7199 for more information about this AD. 

Material Incorporated by Reference 

	(j) You must use Societe de Motorisations Aeronautiques Service Bulletin No. SB-01-76-005, dated December 15, 2006, to do the actions required by this AD, unless the AD specifies otherwise. 

	(1) The Director of the Federal Register approved the incorporation by reference of this service information under 5 U.S.C. 552(a) and 1 CFR part 51. 

	(2) For service information identified in this AD, contact Societe de Motorisations Aeronautiques, 10-12 Rue Didier Daurat, F- 18021 Bourges, France--Telephone +33 (0) 2 4867 5600; Fax: +33 (0) 2 4850 0141; e-mail: [email protected]. 

	(3) You may review service information copies at the FAA, New England Region, 12 New England Executive Park, Burlington, MA 01803; or at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call (202) 741-6030, or go to: http://www.archives.gov/federal-register/cfr/ ibr-locations.html.

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 November 6, 2026. Connections as data: /graph/directive/2007-24-06.json · aircraft systems.