Airworthiness Directive · Amendment 39-15265 · Bell Helicopter Textron, Inc. Model 204B, 205A, 205A-1, 205B, 210, 212, 412, 412EP, and 412CF Helicopters
Bell Helicopter Textron, Inc. Model 204B, 205A, 205A-1, 205B, 210, 212, 412, 412EP, and 412CF Helicopters
Superseded. A later AD replaced this one: AD 2010-26-52. Comply with the one in force.
Model 204B, 205A, 205A-1, 205B, 210, 212, 412, 412EP, and 412CF helicopters, with a tail rotor blade (blade), having a part and serial number as listed in the following table, installed, certificated in any category.
| Part No. | Serial No. |
|---|---|
| 204-011-702-015 | AFS-12703, AFS-12893, AFS-23525, or AFS-23573. |
| 204-011-702-121 | A-22020. |
| 212-010-750-105FM | A-10090, A-10836, A-11207, or A-11332. |
| 212-010-750-113 | A-14953, A15090, or CS-12702. |
| 212-010-750-113FM | A-12240, A-12296, A-12640, A-12670, A-12789, A-13033, A-13096, A-13134, A-13199, A-13264, or A-13366. |
| 212-010-750-133 | A15602. |
This document publishes in the Federal Register an amendment adopting Airworthiness Directive (AD) 2007-19-53, which was sent previously to all known U.S. owners and operators of the specified Bell Helicopter Textron, Inc. (BHTI) model helicopters by individual letters. This AD requires replacing each affected tail rotor blade (blade) with an airworthy blade with a serial number not listed in the applicability of this AD. This AD is prompted by three incidents in which blade tip weights were slung from the blades during flight causing significant vibration. The actions specified by this AD are intended to prevent loss of a blade tip weight, loss of a blade, and subsequent loss of control of the helicopter.
To prevent loss of the blade tip weight, loss of a blade, and subsequent loss of control of the helicopter do the following:
(a) Before further flight, replace any affected blade with an airworthy blade with a serial number not listed in the applicability section of this AD.
(b) To request a different method of compliance or a different compliance time for this AD, follow the procedures in 14 CFR 39.19. Contact the Manager, Rotorcraft Certification Office, FAA, ATTN: Michael Kohner, Aviation Safety Engineer, Fort Worth, Texas 76193-0170, telephone (817) 222-5447, fax (817) 222-5783, for information about previously approved alternative methods of compliance.
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.
