2004-08-10 ENGINE COMPONENTS INCORPORATED (ECI): Amendment 39-13579. Docket No. 2004-NE-07-AD.

Airworthiness Directives; Engine Components Incorporated (ECi) Reciprocating Engine Cylinders

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule; request for comments.

SUMMARY: The FAA is adopting a new airworthiness directive (AD) for Teledyne Continental Motors (TCM) models 520 and 550 series engines with certain ECi cylinders installed. This AD requires replacing certain serial-numbered (SN) cylinders supplied by ECi before further flight. This AD results from reports of 34 failures of cylinder heads marketed by ECi. We are issuing this AD to prevent loss of engine power due to cracks in the cylinder head and possible engine failure caused by separation of a cylinder head.

DATES: This AD becomes effective May 5, 2004.

Applicability
   (c)    This AD applies to Teledyne Continental Motors (TCM) TSIO-520-NB, -VB, and -WB engines that are modified by supplemental type certificate (STC) SE4327SW, STC SE09104SC, or STC SE09261SC for operation at 325 HP or greater, (the so-called RAM TSIO-520-NB, -VB, or -WB Series III, IV, and VII reciprocating engines; and Teledyne Continental Motors (TCM) model 520 and 550 series reciprocating engines with certain ECi reciprocating engine cylinders, part number (P/N) AEC631397, installed. These engines are installed on, but not limited to the airplanes listed in the following Table 1:

Table 1.--List of Airplanes That Use the Affected Engines

<table width="70%" border="0" cellspacing="0" cellpadding="0">
  <tr valign="top">
    <td width="61%">SUPER SKYLANE A, B, C, D, E <br>
      TURBO SUPER SKYLANE <br>
      SKYWAGON A185 E, F <br>
      SKYWAGON A185FII <br>
      AG SPRAYER 188-300 <br>
      A188-230 <br>
      AG TRUCK (A 188B) -300 <br>
      AG HUSKEY (A 188C) -310 <br>
      AG WAGON (A 188B) <br>
      SUPER SKYWAGON U206, A <br>
      U206B, C, D, E, F <br>
      TURBO SKYWAGON TU206 A <br>
      TU206B, C, D, E, F <br>
      STATIONAIR U206 <br>
      TU206 <br>
      U206FII-300 <br>
      U206G-300 <br>
      U206GII-300 <br>
      TU206G-310 <br>
      SUPER SKYLANE P206A <br>
      P206B, C, D, E <br>
      TURBO P 206 A, B, C, D, E <br>
      SKYWAGON 207 <br>
      TURBO 207 <br>
      STATIONAIR 207A, 207AII <br>
      STATIONAIR 8, 811 <br>
      T-STATIONAIR 811 <br>
      210 CENTURION D, E, F, G, H. <br>
      210 CENTURION J <br>
      210 CENTURION K, L, M, N, R <br>
      210 CENTURION TURBO <br>
      210 CENTURION TURBO <br>
      210 CENTURION TURBO K, L <br>
      TURBO 210 J, K, L <br>
      TURBO 210 MII, NII <br>
      TURBO 210R <br>
      PRESSURIZED CENTURION P210N <br>
      PRESSURIZED CENTURION P210NII <br>
      PRESSURIZED CENTURION P210R <br>
      T303 CRUSADER <br>
      T303 CRUSADER <br>
      310R <br>
      310R <br>
      TURBO 310 P, Q <br>
      TURBO 310 R <br>
      TURBO 310 R <br>
      EXECUTIVE SKYNIGHT D, E, F <br>
      335 <br>
      340 <br>
      340A <br>
      401 A, 401 B <br>
      402 A, 402 B <br>
      402C <br>
      404 TITAN <br>
      411, 411A <br>
      414 <br>
      414, 414 A <br>
      421A <br>
      421B <br>
      421C <br>
      421C </td>
    <td width="39%">IO-520-A <br>
      TSIO-520-C <br>
      IO-520-D <br>
      IO-520-D <br>
      IO-520-D <br>
      IO-520-D <br>
      IO-520-D <br>
      TSIO-520-T <br>
      IO-520-D <br>
      IO-520-A <br>
      IO-520-F <br>
      IO-520-C <br>
      TSIO-520-C <br>
      IO-520-F <br>
      TIOS-520-C <br>
      IO-520-F <br>
      IO-520-F <br>
      IO-520-L <br>
      TSIO-520-M <br>
      IO-520-A <br>
      IO-520-A <br>
      TSIO-520-C <br>
      IO-520-F <br>
      TSIO-520-G <br>
      IO-520-F <br>
      IO-520-F <br>
      TSIO-520-M <br>
      IO-520-A <br>
      IO-520-J <br>
      IO-520-L <br>
      TSIO-520-C <br>
      TSIO-520-H <br>
      TSIO-520-H <br>
      TSIO-520-H <br>
      TSIO-520-R <br>
      TSIO-520-R <br>
      TSIO-520-P <br>
      TSIO-520-AF <br>
      TSIO-520-CE <br>
      TSIO-520-AE <br>
      LTSIO-520-AE <br>
      IO-520-MB <br>
      IO-520-M <br>
      TSIO-520-B <br>
      TSIO-520-BB <br>
      TSIO- 520-B <br>
      TSIO-520-B <br>
      TSIO-520-EB <br>
      TSIO-520-K <br>
      TSIO-520-NB, -N <br>
      TSIO-520-E <br>
      TSIO-520-E <br>
      TSIO-520-VB <br>
      GTSIO-520-M <br>
      GTSIO-520-C <br>
      TSIO-520-J <br>
      TSIO-520-NB, -N <br>
      GTSIO-520-D <br>
      GTSIO-520-H <br>
      GTSIO-520-L <br>
      GTSIO-520-N</td>
  </tr>
</table>