Airworthiness Directive · Amendment 39-15196 · Pratt & Whitney JT9D-7R4 Turbofan Engines
Pratt & Whitney JT9D-7R4 Turbofan Engines
This AD applies to Pratt & Whitney (PW) JT9D-7R4 turbofan engines. These engines are installed on, but not limited to, Airbus A300 and A310, and Boeing 747 and 767 airplanes.
The FAA is superseding an existing airworthiness directive (AD) for Pratt & Whitney (PW) JT9D-7R4 turbofan engines. That AD currently requires inspection of the blade root thickness of 1st stage fan blades identified by part number (P/N) and serial number (SN) in the AD. This AD requires the same actions but corrects 12 P/Ns, adds 10 part SNs, and adds the definition of next fan blade exposure to the compliance section. This AD results from the discovery of inaccurate part quantity, part numbers, and serial numbers used in AD 2005-26-09. We are issuing this AD to prevent 1st stage fan blade fracture and uncontained engine failure, resulting in possible damage to the airplane.
You are responsible for having the actions required by this AD performed within the compliance times specified unless the actions have already been done.
(f) For 1st stage fan blades that are listed by P/N and SN in Table 1 of this AD, do the following:
| P/Ns | SNs |
|---|---|
| 5001341-022 | JW2804 |
| 5001341-022 | JW0354 |
| 5001341-022 | ND5746 |
| 5001341-022 | ND5770 |
| 5001341-022 | JW3992 |
| 5001341-022 | ND8615 |
| 5001341-022 | JW0442 |
| 5001341-022 | JW2317 |
| 5001341-022 | ND8631 |
| 5001341-022 | ND8635 |
| 5001341-022 | JW4624 |
| 5001341-022 | NE0394 |
| 5001341-022 | NE0153 |
| 5001341-022 | NN8054 |
| 5001341-022 | JW4693 |
| 5001341-022 | ND7304 |
| 5001341-022 | MG6108 |
| 5001341-022 | MG5862 |
| 5001341-022 | MG5619 |
| 5001341-022 | NE0308 |
| 5001341-022 | NE0200 |
| 5001341-022 | MG6797 |
| 5001341-022 | JW0230 |
| 5001341-022 | ND5652 |
| 5001341-022 | ND5775 |
| 5001341-022 | JW0251 |
| 5001341-022 | ND5719 |
| 5001341-022 | JW0248 |
| 5001341-022 | ND5785 |
| 5001341-022 | ND5676 |
| 5001341-022 | ND5661 |
| 5001341-022 | JW0265 |
| 5001341-022 | ND5699 |
| 5001341-022 | ND5767 |
| 5001341-022 | JW0259 |
| 5001341-022 | ND5680 |
| 5001341-022 | ND5749 |
| 5001341-022 | JW0235 |
| 5001341-022 | ND5776 |
| 5001341-022 | ND8580 |
| 5001341-022 | MG6039 |
| 5001341-022 | ND9127 |
| 5001341-022 | JW4287 |
| 5001341-022 | JW0262 |
| 5001341-022 | JW0445 |
| 5001341-022 | JW4665 |
| 5001341-022 | MG5901 |
| 5001341-022 | NE0303 |
| 5001341-022 | ND8703 |
| 5001341-022 | JW4574 |
| 5001341-022 | JW4286 |
| 5001341-022 | JW4491 |
| 5001341-022 | JW4630 |
| 5001341-022 | JW4391 |
| 5001341-022 | MG6550 |
| 5001341-022 | MG6776 |
| 5001341-022 | JW4586 |
| 5001341-022 | JW0352 |
| 5001341-022 | JW4261 |
| 5001341-022 | MG6135 |
| 5001341-022 | JW4685 |
| 5001341-022 | MG6772 |
| 5001341-022 | MG6793 |
| 5001341-022 | MG7111 |
| 5001341-022 | ND8618 |
| 5001341-022 | JW0644 |
| 5001341-022 | JW4631 |
| 5001341-022 | JW4651 |
| 5001341-022 | JW0234 |
| 5001341-022 | JW4646 |
| 804121 | NN9016 |
| 804121 | VJ3393 |
| 804121 | PX3694 |
| 804121 | RK9168 |
| 804121 | PX5023 |
| 804121 | VJ3324 |
| 804121 | VJ3504 |
| 804121 | NN9115 |
| 804121 | NN8936 |
| 804121 | PX3816 |
| 804121 | VJ3412 |
| 804121 | RK9163 |
| 804121 | VJ3447 |
| 804121 | RK9230 |
| 804121 | RK9109 |
| 804121 | PX4627 |
| 804121 | RK8990 |
| 804121 | SP9459 |
| 804121 | RK8656 |
| 804121 | NN8933 |
| 804121 | VJ3444 |
| 804121 | ND5864 |
| 804121 | NN9020 |
| 804121 | RK8905 |
| 804121 | SR1733 |
| 804121 | NN9047 |
| 804121 | PX3692 |
| 804121 | PX3786 |
| 804121 | NN9025 |
| 804121 | NN9007 |
| 804121 | RK9100 |
| 804121 | VJ3399 |
| 804121 | PX4970 |
| 804121 | PX5013 |
| 804121 | RK8904 |
| 804121 | NN8986 |
| 804121 | NN8829 |
| 804121 | VJ3459 |
| 804121 | RK9143 |
| 804121 | VJ3414 |
| 804121 | NN9028 |
| 804121 | SP1557 |
| 804121 | PX5003 |
| 804121 | PX5042 |
| 804121 | VJ3475 |
| 804121 | ND7330 |
| 804121 | PX3714 |
| 831021-003 | NS8913 |
| 831021-003 | ND6512 |
| 831021-003 | ND6941 |
| 831021-003 | ND9576 |
| 831021-003 | NS7555 |
| 831021-003 | NS8286 |
| 831021-003 | NS7447 |
| 831021-003 | ND6488 |
| 831021-003 | ND8296 |
| 831021-003 | ND6956 |
| 831021-003 | ND7879 |
| 831021-003 | ND6509 |
| 831021-003 | ND9814 |
| 831021-003 | NN7331 |
| 831021-003 | ND6991 |
| 831021-003 | ND6894 |
| 831021-003 | NS6413 |
| 831021-003 | ND7344 |
| 831021-003 | ND6947 |
| 831021-003 | NN8732 |
| 831021-003 | ND8536 |
| 831021-003 | ND6946 |
| 831021-003 | ND6723 |
| 831021-003 | ND9294 |
| 831021-003 | ND9290 |
| 831021-003 | ND6013 |
| 831021-003 | ND8937 |
| 831021-003 | NS7160 |
| 831021-003 | NS6435 |
| 831021-003 | NS6591 |
| 831021-003 | ND9558 |
| 831021-003 | NS8479 |
| 831021-003 | NS9382 |
| 831021-003 | ND8965 |
| 831021-003 | ND9837 |
| 831021-003 | ND5959 |
| 831021-003 | NS6491 |
| 831021-003 | NS9072 |
| 831021-003 | ND9625 |
| 831021-003 | ND6714 |
| 831021-003 | ND6820 |
| 831021-003 | ND8972 |
| 831021-003 | NE0286 |
| 831021-003 | NE0347 |
| 831021-003 | ND8010 |
| 831021-003 | ND8956 |
| 831021-003 | ND9535 |
| 831021-003 | ND9831 |
| 831021-003 | NE0227 |
| 831021-003 | ND8283 |
| 831021-003 | ND9730 |
| 831021-003 | NN7656 |
| 831021-003 | NS7775 |
| 831021-003 | ND9815 |
| 831021-003 | ND6135 |
| 831021-003 | NS8491 |
| 831021-003 | NS6395 |
| 831021-003 | NS8584 |
| 831021-003 | NN7272 |
| 831021-003 | MG7159 |
| 831021-003 | NS6592 |
| 831021-003 | ND7862 |
| 831021-003 | ND6684 |
| 831021-003 | NN7744 |
| 831021-003 | ND7480 |
| 831021-003 | ND7873 |
| 831021-003 | ND6827 |
| 831021-003 | ND6576 |
| 831021-003 | ND9261 |
| 831021-003 | NS8686 |
| 831021-003 | ND9052 |
| 831021-003 | ND6897 |
| 831021-003 | ND6565 |
| 831021-003 | NN8966 |
| 831021-003 | PX3707 |
| 831021-003 | NS7031 |
| 831021-003 | ND6584 |
| 831021-003 | ND9883 |
| 831021-003 | NS6535 |
| 831021-003 | ND7852 |
| 831021-003 | ND9662 |
| 831021-003 | ND7871 |
| 831021-003 | JW0106 |
| 831021-003 | ND8305 |
| 831021-003 | NS6409 |
| 831021-003 | NE0442 |
| 831021-003 | ND9095 |
| 831021-003 | ND9302 |
| 831021-003 | ND9023 |
| 831021-003 | ND8009 |
| 831021-003 | ND8477 |
| 831021-003 | ND7492 |
| 831021-003 | ND8776 |
| 831021-003 | ND6524 |
| 831021-003 | ND6704 |
| 831021-003 | ND8911 |
| 831021-003 | ND8789 |
| 831021-003 | ND8798 |
| 831021-003 | ND6407 |
| 831021-003 | ND7668 |
| 831021-003 | ND9179 |
| 831021-003 | NE0421 |
| 831021-003 | ND6513 |
| 831021-003 | ND6744 |
| 831021-003 | ND7654 |
| 831021-003 | ND7870 |
| 831021-003 | ND9759 |
| 831021-003 | ND6561 |
| 831021-003 | ND5826 |
| 831021-003 | ND6031 |
| 831021-003 | ND8714 |
| 831021-003 | ND8872 |
| 831021-003 | ND6678 |
| 831021-003 | ND6629 |
| 831021-003 | ND8995 |
| 831021-003 | NE0302 |
| 831021-003 | ND6405 |
| 831021-003 | NS8300 |
| 831021-003 | NS8769 |
| 831021-003 | NS7147 |
| 831021-003 | ND6649 |
| 831021-003 | ND7766 |
| 831021-003 | NS7864 |
| 831021-003 | NS8734 |
| 831021-003 | ND6677 |
| 831021-003 | NS7911 |
| 831021-003 | ND8205 |
| 831021-003 | ND8804 |
| 831021-003 | ND6639 |
| 831021-003 | ND8994 |
| 831021-003 | ND7275 |
| 831021-003 | ND9195 |
| 831021-003 | ND6178 |
| 831021-003 | ND8639 |
| 831021-003 | ND9760 |
| 831021-003 | ND9108X |
| 831021-003 | ND6427 |
| 831021-003 | ND6590 |
| 831021-003 | NS6551 |
| 831021-003 | JW1158 |
| 831021-003 | ND6412 |
| 831021-003 | ND7922 |
| 831021-003 | NS8678 |
| 831021-003 | ND8930 |
| 831021-003 | ND6596 |
| 831021-003 | ND9570 |
| 831021-003 | NN9027 |
| 831021-003 | ND6446 |
| 831021-003 | NE0275 |
| 831021-003 | ND9917 |
| 831021-003 | NS7919 |
| 831021-003 | NS7907 |
| 831021-003 | ND6583 |
| 831021-003 | NN7420 |
| 831021-003 | ND7746 |
| 831021-003 | ND8187 |
| 831021-003 | NN8999 |
| 831021-003 | ND6043 |
| 831021-003 | ND7880 |
| 831021-003 | NN7175 |
| 831021-003 | ND9816 |
| 831021-003 | ND8174 |
| 831021-003 | ND6045 |
| 831021-003 | NS7562 |
| 831021-003 | JW0075 |
| 831021-003 | ND6848 |
| 831021-003 | ND8531 |
| 831021-003 | ND6311 |
| 831021-003 | ND8144 |
| 831021-003 | ND5798 |
| 831021-003 | ND8113 |
| 831021-003 | ND9642 |
| 831021-003 | ND7436 |
| 831021-003 | ND9054 |
| 831021-003 | ND9683 |
| 831021-003 | ND5991 |
| 831021-003 | ND6026 |
| 831021-003 | ND6616 |
| 831021-003 | ND6530 |
| 831021-003 | NE0374 |
| 831021-003 | ND6364 |
| 831021-003 | ND7718 |
| 831021-003 | ND6473 |
| 831021-003 | ND6436 |
| 831021-003 | ND6887 |
| 831021-003 | ND6518 |
| 831021-003 | ND6479 |
| 831021-003 | NS6330 |
| 831021-003 | ND7264 |
| 831021-003 | ND8151 |
| 831021-003 | ND6562 |
| 831021-003 | NS8776 |
| 831021-003 | ND6519 |
| 831021-003 | ND7659 |
| 831021-003 | NS9049 |
| 831021-003 | NS6861 |
| 831021-003 | ND9571 |
| 831021-003 | ND9346 |
| 831021-003 | ND6501 |
| 831021-003 | NS8505 |
| 831021-003 | ND9338 |
| 831021-003 | ND9775 |
| 831021-003 | ND6485 |
| 831021-003 | ND7165 |
| 831021-003 | ND9371 |
| 831021-003 | ND9537 |
| 831021-003 | NS7889 |
| 831021-003 | ND7877 |
| 831021-003 | ND8670 |
| 831021-003 | ND9032 |
| 831021-003 | ND8781 |
| 831021-003 | ND8604 |
| 831021-003 | ND9329 |
| 831021-003 | ND9110 |
| 831021-003 | ND5997 |
| 831021-003 | ND6027 |
| 831021-003 | ND9589 |
| 831021-003 | ND6575 |
| 831021-003 | ND6592 |
| 831021-003 | ND6463 |
| 831021-003 | NS8583 |
| 831021-003 | NS8590 |
| 831021-003 | NS8567 |
| 831021-003 | NS6795 |
| 831021-003 | NS7110 |
| 831021-003 | NS6587 |
| 831021-003 | NS6404 |
| 831021-003 | ND6486 |
| 5001341-022 | JW0942 |
| 5001341-022 | ND9231 |
| 5001341-022 | JW4812 |
| 5001341-022 | ND6555 |
| 5001341-022 | M1375 |
| 5001341-022 | MG6627 |
| 5001341-022 | MG6794 |
| 5001341-022 | ND9399 |
| 5001341-022 | NE0084 |
| 5001341-022 | MG6252 |
| 5001341-022 | ND7422 |
| 5001341-022 | ND7043 |
| 5001341-022 | MG5722 |
| 5001341-022 | MG5918 |
| 5001341-022 | ND6984 |
| 5001341-022 | M0839 |
| 5001341-022 | M0922 |
| 5001341-022 | M0938 |
| 5001341-022 | M1117 |
| 5001341-022 | M0307 |
| 5001341-022 | JW3871 |
| 5001341-022 | M1125 |
| 5001341-022 | M1149 |
| 5001341-022 | JW2681 |
| 5001341-022 | M0270 |
| 5001341-022 | M1120 |
| 5001341-022 | M0205 |
| 5001341-022 | AE9352 |
| 5001341-022 | JW3492 |
| 5001341-022 | ND6148 |
| 5001341-022 | ND8907 |
| 5001341-022 | M1235 |
| 5001341-022 | MG5585 |
| 5001341-022 | ND8436 |
| 5001341-022 | MG5696 |
| 5001341-022 | ND8704 |
| 5001341-022 | JW2284 |
| 5001341-022 | JW2313 |
| 5001341-022 | JW2498 |
| 5001341-022 | JW2541 |
| 5001341-022 | JW2560 |
| 5001341-022 | JW2589 |
| 5001341-022 | JW2639 |
| 5001341-022 | JW2760 |
| 5001341-022 | JW2792 |
| 5001341-022 | M0579 |
| 5001341-022 | MG2825 |
| 5001341-022 | MG5477 |
| 5001341-022 | ND5917 |
| 5001341-022 | JW1976 |
| 5001341-022 | JW2653 |
| 5001341-022 | JW2608 |
| 5001341-022 | JW2727 |
| 5001341-022 | JW2764 |
| 5001341-022 | JW2265 |
| 5001341-022 | JW2474 |
| 5001341-022 | JW2396 |
| 5001341-022 | JW3554 |
| 5001341-022 | JW2667 |
| 5001341-022 | MG2302 |
| 5001341-022 | MG3972 |
| 5001341-022 | JW3930 |
| 5001341-022 | ND6749 |
| 5001341-022 | M1172 |
| 5001341-022 | JW2104 |
| 5001341-022 | JW2519 |
| 5001341-022 | JW2640 |
| 5001341-022 | JW2517 |
| 5001341-022 | JW2663 |
| 5001341-022 | JW2823 |
| 5001341-022 | M0536 |
| 5001341-022 | JW2725 |
| 5001341-022 | MG5917 |
| 5001341-022 | JW0681 |
| 5001341-022 | JW0711 |
| 5001341-022 | JW0740 |
| 5001341-022 | JW0807 |
| 5001341-022 | JW1089 |
| 5001341-022 | JW1362 |
| 5001341-022 | JW2065 |
| 5001341-022 | MG2434 |
| 5001341-022 | MG2846 |
| 5001341-022 | JW0806 |
| 804121 | NN9854 |
| 804121 | NN9024 |
| 804121 | NN9032 |
| 804121 | PX5029 |
| 804121 | NN9050 |
| 804121 | NS8242 |
| 804121 | NS8260 |
| 804121 | PX4273 |
| 804121 | PX4378 |
| 804121 | RL0857 |
| 804121 | RX8763 |
| 804121 | NS8331 |
| 804121 | NN9824 |
| 804121 | MG6979 |
| 804121 | MG7023 |
| 804121 | MG7055 |
| 804121 | RK8914 |
| 804121 | RL0023 |
| 804121 | PX4328 |
| 804121 | RK9008 |
| 804121 | TG1506 |
| 804121 | KK8226 |
| 804121 | MG2604 |
| 804121 | NS6691 |
| 804121 | RK8968 |
| 804121 | NN9917 |
| 804121 | RK7824 |
| 804121 | M1343 |
| 804121 | NS6559 |
| 804121 | NS7767 |
| 804121 | NE0363 |
| 804121 | PX3771 |
| 804121 | NN9972 |
| 804121 | RL0460 |
| 804121 | RK8310 |
| 804121 | SR2115 |
| 804121 | TG2826 |
| 804121 | PX5018 |
| 804121 | PX5002 |
| 831021-003 | ND7627 |
| 831021-003 | ND6890 |
| 831021-003 | ND7461 |
| 831021-003 | ND9616 |
| 831021-003 | NE0413 |
| 831021-003 | NS8825 |
| 831021-003 | NS6350 |
| 831021-003 | NS7168 |
| 831021-003 | NS7705 |
| 831021-003 | NS7848 |
| 831021-003 | ND9128 |
| 831021-003 | ND9541 |
| 831021-003 | ND9671 |
| 831021-003 | ND9684 |
| 831021-003 | NE0277 |
| 831021-003 | NE0384 |
| 831021-003 | NE0396 |
| 831021-003 | ND6421 |
| 831021-003 | ND6599 |
| 831021-003 | ND6614 |
| 831021-003 | ND7847 |
| 831021-003 | ND8346 |
| 831021-003 | ND8853 |
| 831021-003 | ND8915 |
| 831021-003 | NS8719 |
| 831021-003 | NS8838 |
| 831021-003 | NT0169 |
| 831021-003 | NS9584 |
| 831021-003 | ND6445 |
| 831021-003 | ND6834 |
| 831021-003 | ND7467 |
| 831021-003 | ND8887 |
| 831021-003 | ND6520 |
| 831021-003 | NS8611 |
| 831021-003 | NS7640 |
| 831021-003 | NN7037 |
| 831021-003 | NN7590 |
| 831021-003 | NN8120 |
| 831021-003 | NN8573 |
| 831021-003 | NN9719 |
| 831021-003 | NS8784 |
| 831021-003 | TB6B367 |
| 831021-003 | NN9557 |
| 831021-003 | NN9710 |
| 831021-003 | NS8374 |
| 831021-003 | NS8770 |
| 831021-003 | NS9022 |
| 831021-003 | NS8416 |
| 831021-003 | NS6474 |
| 831021-003 | ND8912 |
| 831021-003 | NT0108 |
| 831021-003 | NS8836 |
| 831021-003 | NN8310 |
| 831021-003 | NS8559 |
| 5001341-022 | JW2313 |
| 5001341-022 | JW2498 |
| 5001341-022 | JW2541 |
| 5001341-022 | JW2560 |
| 5001341-022 | JW2589 |
| 5001341-022 | JW2639 |
| 5001341-022 | JW2760 |
| 5001341-022 | JW2792 |
| 5001341-022 | JW4713 |
| 5001341-022 | MG6743 |
| 5001341-022 | ND8924 |
| 831021-003 | ND9177 |
| 831021-003 | ND9496 |
| 831021-003 | NS7894 |
| 831021-003 | NS9072 |
| 804121 | PX3805 |
| 804121 | PX4266 |
(1) For engines installed on an airplane with affected 1st stage fan blades installed, perform the actions in paragraphs (f)(3) through (f)(6)(ii) of this AD at the next 1st stage fan blade exposure.
(2) For engines not installed on an airplane with affected 1st stage fan blades installed, or, for affected 1st stage fan blades not installed in an engine, paragraph (h) of this AD applies.
(3) Check the 1st stage fan blade for a circled, letter I, on the approved marking area of the outboard side of the blade platform. If the blade has this marking, no further action is required.
(4) Remove 1st stage fan blades without a circled, letter I, on the approved marking area of the outboard side of the blade platform, if installed.
(5) Inspect the 1st stage fan blade root thickness. You can find information on inspecting the blade root thickness in PW Engine Manual Section 72-31-02, Inspect-01, and Repair-23.
(6) For 1st stage fan blades that pass the inspection referenced in paragraph (f)(5) of this AD:
(i) Vibropeen the letter I and a circle around that letter, on the approved marking area of the outboard side of the blade platform. You can find information on approved blade marking in the JT9D-7R4 Engine Manual, Section 72-31-02, Typical Repair-13, Mark Repair Codes.
(ii) Return the 1st stage fan blades to service.
For the purposes of paragraph (f)(1) of this AD, next 1st stage fan blade exposure is:
(1) When any 1st stage fan blade is removed from the engine; or
(2) When the 1st stage fan hub is removed from the engine.
After the effective date of this AD, do not install any 1st stage fan blades listed in Table 1 of this AD on any airplane, unless the actions of this AD have been done to the 1st stage fan blades.
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.
