Airworthiness Directive · Amendment 39-17160 · BRP-Powertrain GmbH & Co KG Rotax Reciprocating Engines
BRP-Powertrain GmbH & Co KG Rotax Reciprocating Engines
This AD applies to BRP-Powertrain GmbH & Co KG Rotax 912 F2; 912 F3; 912 F4; 912 S2; 912 S3; and 912 S4 reciprocating engines, with a fuel pump part number (P/N) 893114 having a serial number (S/N) listed in Table 1 to paragraph (c) of this AD:
| 11.3117 through 11.3325 inclusive. |
| 11.4036 through 11.4355 inclusive. |
| 11.4516 through 11.4595 inclusive. |
| 12.0251 through 12.0270 inclusive. |
We are adopting a new airworthiness directive (AD) for BRP- Powertrain GmbH & Co KG Rotax 912 F2; 912 F3; 912 F4; 912 S2; 912 S3; and 912 S4 reciprocating engines. This AD requires replacing the pressure side fuel hose on certain fuel pumps and inspecting the carburetors connected to those fuel pumps for contamination within 5 flight hours after the effective date of this AD. This AD was prompted by reports of fuel pumps having pressure side fuel hoses not meeting the design specification. We are issuing this AD to prevent pressure side fuel hose deterioration and contamination of the carburetor, which could result in an in-flight engine shutdown, forced landing and damage to the airplane.
Unless already done, within 5 flight hours after the effective date of the AD do the following:
(1) Replace the pressure side fuel hose on the fuel pump with a fuel hose eligible for installation on the pressure side of the fuel pump.
(2) Inspect the carburetors for contamination. Use paragraph 3.1.2 of BRP-Powertrain GmbH & Co KG, Rotax Aircraft Engines Alert Service Bulletin No. ASB-912-061R1, dated May 31, 2012, to perform your inspection.
For the purpose of this AD, a fuel hose eligible for installation is one that was not from any of the affected fuel pumps with an S/N listed in Table 1 to paragraph (c) of this AD.
(1) After the effective date of this AD, do not install a P/N 893114 fuel pump with an S/N listed in Table 1 to paragraph (c) of this AD onto any engine, unless the pressure side fuel hose has been replaced as required by this AD.
(2) After the effective date of this AD, do not install a Rotax 912 engine with a P/N 893114 fuel pump with an S/N listed in Table 1 to paragraph (c) of this AD in any airplane unless it has been inspected and the pressure side fuel hose replaced as required by this AD.
(3) After the effective date of this AD, do approve for return to service any product or article with a fuel hose removed from a P/N 893114 fuel pump with an S/N listed in Table 1 to paragraph (c) of this AD.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Engines
