Airworthiness Directive · Amendment 39-16896 · Fire protection
Airbus Airplanes
This AD applies to Airbus Model A330-201, -202, -203, -223, -223F, -243, and -243F airplanes; Model A330-301, -302, -303, -321, -322, -323, -341, -342, and -343 airplanes; Model A340-211, -212, and -213 airplanes; Model A340-311, -312, and -313 airplanes; Model A340-541 airplanes; and Model A340-642 airplanes; certificated in any category; all serial numbers.
We are adopting a new airworthiness directive (AD) for Airbus Model A330-200 and -300 series airplanes, Model A340-200 and -300 series airplanes, and Model A340-500 and -600 series airplanes. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Within 1,000 flight hours after the effective date of this AD: Do an inspection to identify the fire detection unit (FDU) part number (P/N) and serial number (S/N) of each engine, auxiliary power unit (APU), and MLG bay (for Model A340-500 and -600 series airplanes only), as applicable, in accordance with the instructions of Airbus All Operators Telex (AOT) A330-26A3052, dated April 19, 2011 (for Model A330-200 and -300 series airplanes); Airbus AOT A340-200/300-26A4044, dated April 19, 2011 (for Model A340-200 and -300 series airplanes); or Airbus AOT A340-500/600-26A5024, dated April 19, 2011 (for Model A340-500 and -600 series airplanes). A review of maintenance records is acceptable in lieu of this inspection if the part number and serial number of the installed FDU can be conclusively determined from that review.
(h) If during the inspection required by paragraph (g) of this AD, an FDU with P/N 3711-00 is found installed and the serial number of the FDU is listed in table 1 of this AD: Before further flight, replace the FDU with a serviceable FDU, in accordance with the instructions of Airbus AOT A330-26A3052, dated April 19, 2011 (for Model A330-200 and -300 series airplanes); Airbus AOT A340-200/300-26A4044, dated April 19, 2011 (for Model A340-200 and -300 series airplanes); or Airbus AOT A340-500/600-26A5024, dated April 19, 2011 (for Model A340-500 and -600 series airplanes).
| Serial numbers |
|---|
| ZL0683 |
| ZL0718 |
| ZL0721 through ZL0725 inclusive |
| ZL0727 |
| ZL0729 through ZL0731 inclusive |
| ZL0736 |
| ZL0738 |
| ZL0740 |
| ZL0742 |
| ZL0743 |
| ZL0745 |
| ZL0747 |
| ZL0770 |
| ZL0772 |
| ZL0775 |
| ZL0788 |
| ZL0804 |
Note 1: Some of the affected P/N 3711-00 FDUs have been installed in production on certain airplanes, as indicated in table 2 of this AD.
| Model A330-200 and -300 airplanes manufacturer serial numbers | Position | S/N |
|---|---|---|
| 1177 | ENG2 FDU (1WD2) | ZL0683 |
| 1191 | ENG2 FDU (1WD2) | ZL0723 |
| 1192 | ENG1 FDU (1WD1) ENG2 FDU (1WD2) | ZL0721 ZL0722 |
| 1193 | APU FDU (13WG) | ZL0718 |
| 1195 | ENG1 FDU (1WD1) | ZL0740 |
| 1196 | ENG1 FDU (1WD1) ENG2 FDU (1WD2) APU FDU (13WG) | ZL0742 ZL0736 ZL0743 |
| 1198 | ENG2 FDU (1WD2) | ZL0738 |
| 1199 | APU FDU (13WG) | ZL0731 |
| 1200 | ENG1 FDU (1WD1) | ZL0747 |
| 1206 | ENG2 FDU (1WD2) | ZL0770 |
(i) As of the effective date of this AD, no person may install on any airplane, any P/N 3711-00 FDU with a serial number listed in table 1 of this AD, unless the FDU has been reworked and re-identified by L'Hotellier as specified in the instructions in Airbus AOT A330-26A3052, dated April 19, 2011 (for Model A330-200 and -300 series airplanes); Airbus AOT A340-200/300-26A4044, dated April 19, 2011 (for Model A340-200 and -300 series airplanes); or Airbus AOT A340-500/600-26A5024, dated April 19, 2011 (for Model A340-500 and -600 series airplanes).
Note 2: This AD differs from the MCAI and/or service information as follows: No differences.
