Airworthiness Directive · Amendment 39-14651 · General Machine-Diecron, Inc. Actuator Nut Assembly for the Right Main Landing Gear Installed on Certain Raytheon Aircraft Company (Formerly Beech) Airplanes
General Machine-Diecron, Inc. Actuator Nut Assembly for the Right Main Landing Gear Installed on Certain Raytheon Aircraft Company (Formerly Beech) Airplanes
This AD affects any actuator nut assembly, part number (P/N) GMD115-810029-17 or P/N GMD115-810029-23, for the right main landing gear (MLG) actuator installed on, but not limited to, the following Raytheon Aircraft Company (Raytheon) (formerly Beech) airplanes that are certificated in any category and not equipped with a hydraulic MLG or modified to a hydraulic MLG.
| Models | Serial Nos. |
|---|---|
| (1) F90 | LA-2 through LA-225 (except aircraft that incorporate Beech Kit No. 90-8011). |
| (2) 99, 99A, A99, and B99 | U-1 through U-49 and U51 through U164 (except aircraft that incorporate Beech Kit No. 99-8010-1 or factory installed hydraulic landing gear). |
| (3) 100 and A100 | B-1 through B-94, B-100 through B-204, and B-206 through B-247. |
| (4) B100 | BE-1 through BE-137. |
| (5) 200 | BB-2, BB-6 through BB-733, BB-735 through BB-792, BB-794 through BB-828, BB-830 through BB-853, BB-872, BB-873, BB-892, BB-893, and BB-912 (except aircraft that incorporate Beech Kit No. 101-8018). |
| (6) B200 | BB-734, BB-793, BB-829, BB-854 through BB-870, BB-874 through BB-891, BB-894, BB-896 through BB-911, BB-913 through BB-1157, BB-1159 through BB-1166, and BB-1168 through BB-1192 (except aircraft that incorporate Beech Kit No. 101-8018). |
| (7) 200T and B200T | BT-1 through BT-30 (except aircraft that incorporate Beech Kit No. 101-8018). |
| (8) 200C and B200C | BL-1 through BL-72 (except aircraft that incorporate Beech Kit No. 101-8018). |
| (9) 200CT and B200CT | BN-1 through BN-4 (except aircraft that incorporate Beech Kit No. 101-8018). |
| (10) A200CT (FWC-12D) | FG-1 and FG-2 (except aircraft that incorporate Beech Kit No. 101-8018). |
The FAA adopts a new airworthiness directive (AD) for General Machine--Diecron, Inc. (GMD) actuator nut assembly, part number (P/N) GMD115-810029-17 and P/N GMD115-810029-23, that are installed on certain Raytheon Aircraft Company (Raytheon) (formerly Beech) airplanes that are not equipped with a hydraulic main landing gear (MLG) or modified to a hydraulic MLG. This AD requires you to determine by maintenance records check and/or inspection whether any actuator nut assembly, P/N GMD115-810029-17 or P/N GMD115-810029-23, is installed on the right main MLG actuator, and, if installed, requires you to replace it with a new actuator nut assembly, P/N GMD115-810029-23B or FAA- approved equivalent P/N. This AD results from several reports of failures of the actuator nut assembly, P/N GMD115-810029-17 and P/N GMD115-810029-23. We are issuing this AD to prevent failure of the actuator nut assembly for the right MLG actuator, which could result in failure of the MLG. This failure could prevent the extension or retraction of the MLG.
To address this problem, you must do the following:
| Actions | Compliance | Procedures |
|---|---|---|
| (1) Maintenance Records Check: (i) Check the maintenance records to determine whether the following replacements have been made: (A) Actuator nut assembly, P/N GMD115-810029-17, for the right MLG actuator; or (B) Actuator nut assembly, P/N GMD115-810029-23, for the right MLG actuator. (ii) The owner/operator holding at least a private pilot certificate as authorized by section 43.7 of the Federal Aviation Regulations (14 CFR 43.7) may make this check. You must make an entry into the aircraft records that shows compliance with this portion of the AD in accordance with section 43.9 of the Federal Aviation Regulations (14 CFR 43.9). | Within the next 50 hours time-in-service (TIS) or 30 calendar days after July 28, 2006 (the effective date of this AD), whichever occurs first, unless already done | No special procedures necessary to check the maintenance records. |
| (2) If you find as a result of the check required by paragraph (e)(1) of this AD that there is no record of the specified assembly replacement, inspect the airplane for installation of the following: (i) Actuator nut assembly, P/N GMD115-810029-17, for the right MLG actuator; or (ii) Actuator nut assembly, P/N GMD115-810029-23, for the right MLG actuator. (iii) You may choose to do the inspection without doing the maintenance records check. | Within the next 50 hours TIS or 30 calendar days after July 28, 2006 (the effective date of this AD), whichever occurs first, unless already done | Follow General Machine Diecron, Inc. Service Bulletin GM-D 32-30-01/102505, dated November 21, 2005. |
| (3) If during the check required by paragraph (e)(1) or the inspection required by paragraph (e)(2) of this AD, you find either actuator nut assembly, P/N GMD115-810029-17 or P/N GMD115-810029-23, for the right MLG actuator, replace the specific assembly, with a new actuator nut assembly, P/N GMD115-810029-23B or FAA-approved equivalent P/N | Before further flight after the check required by paragraph (e)(1) or the inspection required by paragraph (e)(2) of this AD | Follow General Machine Diecron, Inc. Service Bulletin GM-D 32-30-01/102505, dated November 21, 2005. |
| (4) Do not install any actuator nut assembly, P/N GMD115-810029-17 or P/N GMD115-810029-23, for the right MLG actuator | As of July 28, 2006 (the effective date of this AD) | Not Applicable. |
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.
