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Airworthiness directives › 2004-08-10

AD 2004-08-10 Airworthiness Directives; Engine Components Incorporated (ECi) Reciprocating Engine Cylinders

2004-05-05
2004-04-20
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Engine
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Applicability*9

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 Airplane manufacturer and model Engine model AERFER/AERMECCHI AM, 3 GTSIO-520-C AERO COMMANDER: 200D IO-520-A 500A COLEMILL CONVERSION IO-520-E 685 GTSIO-520-K AISA: F20, PEGASO IO-520-K AMBROSIN MF-151 IO-520-F AVIONES PIHAO IO-520-D BEAGLE (U.K.): B206S GTSIO-520-C BEECHCRAFT BARON: C55 IO-520-CB, -C D55 IO-520-CB, -C E55 IO-520-CB, -C 58 IO-520-CB 58P TSIO-520-LB 58P TSIO-520-L 58P TSIO-520-WB 58TC TSIO-520-LB 58TC TSIO-520-L 58TC TSIO-520-WB BEECHCRAFT BONANZA: A36 IO-550-B E33A IO-520-BA E33A IO-520-BB E33B IO-520-B F33 IO-520-BB F33A IO-520-B F33A IO-520-BA F33A IO-520-BB S35 IO-520-B ST35 TSIO-520-D V35 IO-520-BB V35A IO-520-B V35A-TC TSIO-520-D V35B IO-520-B V35B IO-520-BA V35B IO-520-BB A36 IO-520-B A36 IO-520-BA A36 IO-520-BB A36-TC TSIO-520-UB BEECHCRAFT DEBONAIR: C33A IO-520-B VIKING 300 IO-520-A IO-520-D IO-520-K BONNAIRE 185 IO-520-D BONNAIRE 188 CONVERSION IO-520-D BURNS BA42 IO-520-D CESSNA: SUPER SKYLANE A, B, C, D, E IO-520-A TURBO SUPER SKYLANE TSIO-520-C SKYWAGON A185 E,F IO-520-D SKYWAGON A185FII IO-520-D AG SPRAYER 188-300 IO-520-D A188-230 IO-520-D AG TRUCK (A 188B) -300 IO-520-D AG HUSKEY (A 188C) -310 TSIO-520-T AG WAGON (A 188B) IO-520-D SUPER SKYWAGON U206, A IO-520-A U206B, C, D, E, F IO-520-F TURBO SKYWAGON TU206 A IO-520-C TU206B, C, D, E, F TSIO-520-C STATIONAIR U206 IO-520-F TU206 TIOS-520-C U206FII-300 IO-520-F U206G-300 IO-520-F U206GII-300 IO-520-L TU206G-310 TSIO-520-M SUPER SKYLANE P206A IO-520-A P206B, C, D, E IO-520-A TURBO P 206 A, B, C, D, E TSIO-520-C SKYWAGON 207 IO-520-F TURBO 207 TSIO-520-G STATIONAIR 207A, 207AII IO-520-F STATIONAIR 8, 811 IO-520-F T-STATIONAIR 811 TSIO-520-M 210 CENTURION D, E, F, G, H IO-520-A 210 CENTURION J IO-520-J 210 CENTURION K, L, M, N, R IO-520-L 210 CENTURION TURBO TSIO-520-C 210 CENTURION TURBO TSIO-520-H 210 CENTURION TURBO K, L TSIO-520-H TURBO 210 J, K, L TSIO-520-H TURBO 210 MII, NII TSIO-520-R TURBO 210R TSIO-520-R PRESSURIZED CENTURION P210N TSIO-520-P PRESSURIZED CENTURION P210NII TSIO-520-AF PRESSURIZED CENTURION P210R TSIO-520-CE T303 CRUSADER TSIO-520-AE T303 CRUSADER LTSIO-520-AE 310R IO-520-MB 310R IO-520-M TURBO 310 P, Q TSIO-520-B TURBO 310 R TSIO-520-BB TURBO 310 R TSIO-520-B EXECUTIVE SKYNIGHT D, E, F TSIO-520-B 335 TSIO-520-EB 340 TSIO-520-K 340A TSIO-520-NB, -N 401 A, 401 B TSIO-520-E 402 A, 402 B TSIO-520-E 402C TSIO-520-VB 404 TITAN GTSIO-520-M 411, 411A GTSIO-520-C 414 TSIO-520-J 414, 414 A TSIO-520-NB, -N 421A GTSIO-520-D 421B GTSIO-520-H 421C GTSIO-520-L 421C GTSIO-520-N JANOX JAVILON IO-520-B NAVION: RANGEMASTER MODEL H IO-520-B RANGEMASTER MODEL H IO-520-BA PIPER: MALIBU TSIO-520-BE PRINAIR: DE HAVILLAND HERON IO-520-E WINDECKER EAGLE IO-520-C

Compliance

You are responsible for having the actions required by this AD performed within the compliance times specified unless the actions have already been done. Identifying Suspect Cylinders (f) Within 50 hours time-in-service (TIS) after the effective date of this AD, identify, and if necessary replace cylinders, ECi P/N AEC631397 as follows: (1) Identify the cylinder serial number (SN) as follows: (i) Determine the SN of the cylinder by looking in the engine records or by inspecting the cylinder for a SN on the intake port boss (see Figure 1) or on the flat area next to the head to barrel junction (see Figure 2). Disregard any dash numbers that might follow the four digit SN. ER20AP04.002 ER20AP04.003 (ii) If the SN is 1043 or lower, or if it is 7709 or higher, no further action is required. (2) If the cylinder SN is 1044 through 7708, do the following: (i) Remove the rocker box cover from the cylinder. (ii) Look at the left-front cylinder casting. (iii) If the casting has AEC65385, and an “O” under the ECi logo, the cylinder is P/N AEC631397. See Figure 3. ER20AP04.004 (iv) If the cylinder is not ECi P/N AEC631397, no further action is required. (3) If the cylinder is ECi P/N AEC631397, do the following: (i) Look at the flange of the rocker box. (ii) If there is a letter “A,” “B,” or “X” stamped on the flange of the rocker box, no further action is required. See Figure 4. ER20AP04.005 (iii) If there is no letter “A,” “B,” or “X” stamped on the flange of the rocker box, replace the cylinder before further flight. Alternative Methods of

Unsafe condition

This AD results from reports of 34 failures of ECi cylinder head. 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.

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