UNAPPROVED PARTS NOTIFICATION NO. 96-269 April 13, 1999 AFFECTED AIRCRAFT: Twin Commander Model 680, 685, and 690 Series; Raytheon (formerly Beech) Model 65 and 90 Series; Cessna Model 310, 320, 340, 401, 402, 411, 414, and 421 Series; Piper Model PA-23 and PA-24 Series. Note: Additional aircraft manufacturer's models may be affected; however, specific information pertaining to these aircraft is unknown at this time. PURPOSE: This notification is to advise all owners, operators, maintenance entities, and manufacturers of the above listed airplanes that unapproved fuel cells were sold and may have been installed on these airplanes. BACKGROUND: During a suspected unapproved parts investigation, the Federal Aviation Administration (FAA) determined that Duraflex Fuel Cells Corporation and Fuel Cells Maintenance, Inc., located in Little Rock, Arkansas, sold certain bladder fuel cells which were not FAA approved. Duraflex Fuel Cells Corporation produced bladder fuel cells and Fuel Cells Maintenance, Inc., repaired bladder fuel cells. The production and repair of these fuel cells were accomplished in such a manner that they do not meet FAA approved design requirements and as a result are not eligible for installation on type certificated airplanes. The possibility of fuel leakage may occur if these fuel cells are used in service. The majority of these fuel cells were sold to A C Team (previously known as A C Fuel Cells Worldwide, Inc.), located in Memphis, Tennessee. These parts were manufactured and/or repaired between August 1, 1996, and November 24, 1997. The part numbers and serial numbers of the affected bladder fuel cells are listed as follows. Part Numbers Serial Numbers DF054-320 F2380 F2573 F2784 F2843 F2882 F2886 F2928 F3001 F3410 F3577 F3641 F2381 F2574 F2785 F2844 F2883 F2887 F2972 F3002 F3437 F3578 F2393 F2575 F2786 F2845 F2884 F2926 F2973 F3003 F3513 F3593 F2394 F2672 F2787 F2846 F2885 F2927 F3000 F3399 F3514 F3640 DF054-321 F1122 F2565 F2578 F2719 F2888 F2931 F2977 F3369 F3439 F3642 F3655 F2423 F2566 F2676 F2747 F2889 F2932 F2978 F3370 F3515 F3643 F3684 F2424 F2567 F2702 F2748 F2890 F2974 F2979 F3400 F3516 F3644 F3685 F2482 F2576 F2703 F2757 F2929 F2975 F3300 F3411 F3517 F3647 F2491 F2577 F2718 F2758 F2930 F2976 F3352 F3438 F3594 F3654 DF054-324 F2395 F2396 F2416 F2891 F2933 F2934 F3118 F3164 F3165 F3176 F3253 DF054-325 F2377 F3100 F3101 F3120 F3132 F3133 F3154 F3155 F3177 F3353 DF054-334 F2406 F2417 F2579 F2675 F2951 F2980 F2982 F3062 F3260 F3301 F2407 F2418 F2580 F2892 F2952 F2981 F2983 F3119 F3330 F3354 DF054-335 F2378 F2410 F2490 F2665 F2893 F2985 F3134 F3167 F3178 F2379 F2411 F2552 F2788 F2984 F3121 F3166 F3168 F3435 DF060-501 F1203 F1207 F2778 F3147 F3546 F3547 DF060-502 F1206 F2389 F2469 F2877 F3429 F3548 F3549 DF060-507 F724 F2468 F2997 DF060-508 F2992 DF061-501 F1117 F2878 F2999 F3358 F3552 DF061-502 F2471 F2879 F3149 F3153 F3359 F3550 F3551 DF061-507 F791 F2470 F2572 F2782 F2783 DF062-507 F2392 F2504 F2505 F2506 F2507 F2508 F3398 F3624 DF063-502 F3245 F3630 DF063-507 F3050 F3246 DF063-508 F3051 F3052 F3053 F3631 DF064-501 F3247 F3635 F3636 DF064-502 F3235 F3236 DF064-508 F3244 DF064-509 F3054 F3248 DF064-510 F3233 F3249 F3250 DF0726001-10 F2400 F2674 F2731 F2863 F2898 F3371 F3412 F3542 F2401 F2706 F2732 F2864 F2899 F3401 F3440 F3543 DF0726001-12 F2707 F2821 F3005 F3006 DF0726001-15 F3137 F3402 F3413 F3441 DF0726001-16 F2708 F3007 F3063 F3099 DF0726001-17 F1087 F2519 F2608 F2696 F3197 F3255 F3302 F3415 F3445 F3596 F3665 F2459 F2556 F2609 F2776 F3198 F3256 F3303 F3442 F3446 F3597 F3666 F2461 F2606 F2610 F3179 F3216 F3275 F3346 F3443 F3518 F3598 F2518 F2607 F2677 F3180 F3217 F3276 F3414 F3444 F3519 F3663 DF0726001-18 F2460 F2520 F2563 F2612 F2614 F2697 F3181 F3200 F3520 F3599 F3649 F2496 F2521 F2611 F2613 F2678 F3138 F3199 F3449 F3521 F3648 DF0726001-19 F2900 Part Numbers Serial Numbers DF0726001-20 F3008 DF0726001-22 F674 F2709 F2710 DF0726001-24 F2462 F2522 F3218 F3265 F3305 F3447 F3564 F3584 F3667 F3712 F2463 F2523 F3219 F3266 F3348 F3448 F3571 F3600 F3668 F3713 F2497 F2524 F3220 F3304 F3349 F3450 F3583 F3601 F3711 DF0726001-9 F2604 F2664 F2730 F2800 F2862 F2971 F3139 F3331 F3347 F3432 F3452 F2605 F2729 F2799 F2861 F2966 F3098 F3182 F3332 F3372 F3451 F3522 104-920018-3 F2639 DF1200065-1 F3185 DF1200065-10 F3016 F3089 DF1200065-12 F1118 F2533 F2591 F2723 F2918 F3017 F3157 F3462 F3554 F3676 F2427 F2534 F2646 F2759 F2919 F3018 F3334 F3498 F3607 F3677 F2428 F2535 F2654 F2769 F2936 F3019 F3335 F3504 F3608 F2464 F2588 F2720 F2789 F2937 F3020 F3339 F3505 F3650 F2465 F2589 F2721 F2916 F2967 F3084 F3418 F3538 F3660 F2532 F2590 F2722 F2917 F2968 F3156 F3461 F3539 F3675 DF1200065-13 F2492 F2568 F2685 F2894 F2953 F3085 F3280 F3341 F3465 F2537 F2592 F2724 F2895 F2954 F3086 F3281 F3392 F3472 F2538 F2593 F2725 F2920 F3022 F3186 F3296 F3419 F3529 F2539 F2647 F2726 F2921 F3021 F3187 F3297 F3463 F3530 F2555 F2648 F2770 F2922 F3023 F3269 F3340 F3464 F3573 DF1200065-2 F3503 DF1200065-23 F954 F2399 F2598 F2833 F2870 F3270 F3311 F3390 F3469 F3580 F3689 F1032 F2429 F2686 F2834 F2956 F3271 F3312 F3391 F3470 F3581 F1042 F2430 F2693 F2835 F2957 F3282 F3313 F3393 F3471 F3582 F1043 F2494 F2771 F2836 F2958 F3283 F3314 F3394 F3555 F3656 F1045 F2495 F2790 F2865 F2998 F3284 F3345 F3395 F3556 F3657 F1046 F2594 F2791 F2866 F3075 F3285 F3365 F3420 F3566 F3658 F1136 F2595 F2792 F2867 F3076 F3286 F3366 F3466 F3567 F3686 F2397 F2596 F2793 F2868 F3077 F3287 F3388 F3467 F3572 F3687 F2398 F2597 F2832 F2869 F3078 F3288 F3389 F3468 F3579 F3688 DF1200065-24 F961 F2600 F2760 F2842 F2938 F3159 F3289 F3362 F3476 F3611 F3692 F1048 F2601 F2794 F2871 F2939 F3201 F3298 F3363 F3477 F3612 F3693 F1054 F2602 F2795 F2872 F2969 F3202 F3315 F3407 F3478 F3613 F3694 F1055 F2603 F2796 F2873 F2970 F3207 F3342 F3408 F3479 F3614 F3695 F1062 F2687 F2837 F2874 F3079 F3208 F3343 F3423 F3480 F3659 F1132 F2704 F2838 F2875 F3080 F3209 F3344 F3428 F3531 F3661 F1140 F2705 F2839 F2876 F3094 F3210 F3344A F3473 F3532 F3662 F2564 F2727 F2840 F2896 F3095 F3267 F3360 F3474 F3609 F3690 F2599 F2728 F2841 F2897 F3158 F3268 F3361 F3475 F3610 F3691 Part Numbers Serial Numbers DF1200065-25 F1160 F2797 F2798 F3116 DF1200065-3 F1116 F2493 F2558 F2582 F3011 F3171 F3499 F3540 F3615 F2425 F2536 F2562 F2583 F3117 F3225 F3500 F3541 F3616 F2451 F2557 F2581 F2955 F3170 F3481 F3501 F3545 DF1200065-4 F2426 F2529 F2531 F2585 F2587 F3012 F3338 F3364 F3421 F3482 F2452 F2530 F2584 F2586 F2768 F3333 F3357 F3377 F3422 DF1200065-5 F2712 F2713 F2714 F3701 F3702 DF1200065-6 F2644 F2645 F2653 F2746 F3141 F3188 F3262 F3263 DF1200065-9 F3013 F3014 F3015 F3065 F3066 F3087 F3088 DF204-501 F2666 F3264 F3396 F3397 F3625 F3626 F3627 F3396 F3397 DF296-1 F3059 F3237 F3240 F3337 F3629 DF296-2 F3037 F3038 DF301-1 F3036 F3039 F3040 F3041 DF301-2 F3042 F3043 F3234 F3241 DF301-501 F3238 F3239 DF301-502 F3242 F3243 DF302-1 F995 F3044 F3045 F3046 F3558 F3632 F3633 DF302-2 F3047 F3048 F3049 F3634 DF304-1 F2472 F2880 F2881 F2994 F2993 F3628 DF304-2 F2473 F2548 F2549 F2571 F2779 F2995 F2996 F3699 DF307-1 F2390 F2391 F2474 F2481 F2509 F2780 F2781 DF307-2 F2475 DF308-1 F728 F3058 F3067 F3083 F3146 DF308-2 F729 DF35-9009-1S F1095 F2479 F2629 F2755 F2950 F3033 F3071 F3203 F3424 F3544 F3715 F1186 F2510 F2630 F2777 F2988 F3034 F3142 F3204 F3425 F3620 F1187 F2511 F2631 F2819 F2989 F3035 F3143 F3324 F3490 F3621 F2476 F2512 F2671 F2914 F2990 F3068 F3148 F3325 F3491 F3671 F2477 F2513 F2689 F2915 F2991 F3069 F3172 F3403 F3492 F3672 F2478 F2514 F2692 F2949 F3032 F3070 F3173 F3404 F3536 F3714 DF35-9009-2S F1096 F2516 F2636 F2766 F2814 F2824 F3230 F3321 F3406 F3568 F3664 F1188 F2517 F2637 F2767 F2815 F2825 F3231 F3322 F3493 F3569 F3673 F1190 F2632 F2663 F2810 F2816 F2947 F3257 F3323 F3494 F3622 F3674 F2431 F2633 F2745 F2811 F2817 F2948 F3258 F3405 F3495 F3623 F3716 F2432 F2634 F2744 F2812 F2822 F3205 F3259 F3426 F3496 F3645 F3717 F2515 F2635 F2765 F2813 F2823 F3206 F3261 F3427 F3537 F3646 DF35-921242-11 F2649 F2655 F3144 F3145 F3174 F3175 DF35-921242-12 F2433 F2434 DF361-507 F1126 Part Numbers Serial Numbers DF461-705 F1105 F1109 F1111 F2750 F2752 F2987 F3136 F3433 F3595 F3638 F1108 F1110 F2749 F2751 F2986 F3135 F3152 F3434 F3637 F3639 DF461-712 F2445 F2446 F2550 F2551 F3553 DF461-713 F2447 F2448 F2480 F2681 F3272 DF461-714 F2439 F2440 F2488 F2489 F2682 F3072 DF461-715 F2437 F2438 F2443 F2444 F2683 F3073 F3074 DF461-720 F2441 F2442 F3081 F3082 DF461-722 F2449 F2699 F2700 F2701 DF461-723 F2450 F2553 F2680 DF5026102-3 F1224 F2436 F2541 F2694 F2847 F2855 F2960 F3290 F3328 F3561 F3710 F2385 F2457 F2542 F2711 F2848 F2908 F3009 F3291 F3329 F3562 F2386 F2458 F2543 F2738 F2849 F2909 F3024 F3292 F3378 F3563 F2403 F2483 F2623 F2739 F2850 F2910 F3025 F3293 F3379 F3696 F2408 F2484 F2624 F2740 F2851 F2911 F3026 F3294 F3380 F3697 F2412 F2500 F2625 F2774 F2852 F2940 F3096 F3295 F3381 F3698 F2413 F2501 F2659 F2775 F2853 F2941 F3097 F3316 F3382 F3708 F2435 F2540 F2660 F2818 F2854 F2959 F3150 F3317 F3383 F3709 DF5026102-4 F1079 F2486 F2626 F2743 F2858 F2935 F3189 F3320 F3486 F3560 F1216 F2487 F2627 F2805 F2859 F2942 F3190 F3384 F3487 F3570 F2387 F2502 F2628 F2806 F2860 F2943 F3226 F3385 F3488 F3574 F2388 F2503 F2661 F2807 F2912 F2961 F3227 F3386 F3489 F3575 F2409 F2544 F2662 F2808 F2913 F2962 F3228 F3387 F3533 F3576 F2414 F2545 F2695 F2809 F2923 F3055 F3229 F3483 F3534 F3617 F2415 F2546 F2741 F2856 F2924 F3056 F3318 F3484 F3535 F3618 F2485 F2547 F2742 F2857 F2925 F3057 F3319 F3485 F3559 F3619 DF823343-5 F2453 F2820 F3151 F3651 DF823343-6 F2454 F2615 F2616 F2670 F2801 F3064 F3140 F3115 F3169 DF823362-1 F1070 F2617 F2717 F3416 F3453 F3454 F3588 F3652 F2419 F2656 F3409 F3417 DF823362-2 F898 F2420 F2679 F3336 F3373 F3374 F3502 F2384 DF823362-3 F1218 F2618 F2673 F2734 F2773 F2903 F3027 F3212 F3307 F3585 F3704 F2382 F2619 F2688 F2735 F2826 F2904 F3028 F3221 F3308 F3586 F2455 F2657 F2691 F2753 F2827 F2944 F3029 F3222 F3524 F3587 F2466 F2667 F2715 F2754 F2828 F2945 F3090 F3254 F3525 F3602 F2467 F2668 F2716 F2756 F2901 F2963 F3091 F3277 F3526 F3603 F2498 F2669 F2733 F2772 F2902 F3010 F3211 F3306 F3565 F3703 Part Numbers Serial Numbers DF823362-4 F1119 F2422 F2620 F2658 F2829 F2964 F3163 F3279 F3455 F3604 F3706 F1127 F2456 F2621 F2690 F2830 F2965 F3183 F3309 F3456 F3605 F3707 F1213 F2499 F2622 F2736 F2831 F3030 F3223 F3310 F3457 F3606 F1221 F2525 F2640 F2737 F2905 F3031 F3224 F3350 F3458 F3653 F2383 F2526 F2641 F2802 F2906 F3092 F3251 F3351 F3459 F3669 F2402 F2527 F2642 F2803 F2907 F3093 F3252 F3375 F3527 F3670 F2421 F2528 F2643 F2804 F2946 F3162 F3278 F3376 F3528 F3705 DF823362-5 F3184 F3460 DF823362-6 F2638 95-920011-13 F2404 F2559 F2561 F2650 F2652 F2762 F3060 F2405 F2560 F2569 F2651 F2761 F3004 F3061 95-920011-14 F2570 F2684 F2698 F2763 F2764 F3106 B0803-1 F3107 B0804-1 F3102 B2811-1 F3103 B2812-1 F3108 B4201-1 F3109 B4202-1 F3355 B5013-1 F3326 F3356 B5014-1 F3160 F3327 F3430 F3431 B6111-1 F3104 F3161 B6112-1 F3105 F3122 P4612-1 F2554 F3123 F3193 F3194 P4612-2 F3110 F3508 F3509 F3589 F3590 F3700 F3718 P4612-4 F3678 P4612-5 F3113 F3114 F3124 P4613-1 F3125 F3195 F3196 F3272 F3497 F3679 F3680 F3681 F3719 P4613-2 F3506 F3507 F3510 F3511 P4613-3 F3111 F3112 F3591 P4613-4 F3126 P4614-1 F3127 F3128 F3130 F3273 F3274 F3299 F3436 F3682 F3683 P4614-2 F3129 F3131 F3232 F3367 F3368 P4615-1 F3213 P4615-2 F3214 F3215 F3512 F3592 P4615-3 F3191 SA3426 F3192 SA4251 F3557 Note: The FAA as a result of its investigation compiled this list. If you have any information which identifies additional parts not listed above, as suspect, please contact the FAA under “FURTHER INFORMATION.” RECOMMENDATION: Regulations require that type certificated products conform to their type design. Airplane owners, operators, maintenance entities, and manufactures should inspect their airplanes or stock for the listed part numbers and serial numbers. Verify the FAA approval status of parts purchased from Duraflex Fuel Cells Corporation or repaired by Fuel Cells Maintenance, Inc. If any of the parts are installed, appropriate action should be taken. If any of the parts identified in the above list are found in existing aircraft parts stock, it is recommended that the parts be quarantined to prevent installation until a determination can be made regarding each part's eligibility for installation. FURTHER INFORMATION: The FAA Manufacturing Inspection Office (MIO), listed below, would appreciate any information concerning the discovery of these parts from any source, the means used to identify the source, and the actions taken to remove them from the aircraft and/or stock. This notice originated from the Fort Worth MIO, 2601 Meacham Boulevard, Fort Worth, TX 76137-4298, telephone (817) 222-5180, Fax (817) 222-5995, and was published through the Suspected Unapproved Parts Program Office, AVR-20, at (703) 661-0580, Fax (703) 661-0113.