Airworthiness Directive · Amendment 39-21563 · Turbine section
Bell Textron Canada Limited Helicopters
This AD applies to the following Bell Textron Canada Limited (Bell) helicopters, certificated in any category:
(1) Bell Model 206B, serial number (S/N) 004 through 4690 inclusive, including helicopters converted from Model 206A; and
Note 1 to paragraph (c)(1): Helicopters with a 206B3 designation are Model 206B helicopters.
(2) Bell Model 206L, S/N 45001 through 45153 inclusive, and 46601 through 46617 inclusive.
The FAA is superseding Airworthiness Directive (AD) 2013-20-13 for certain Bell Helicopter Textron Canada Limited (now Bell Textron Canada Limited) (Bell) Model 206B and 206L helicopters. AD 2013-20-13 required installing a placard beneath the engine power dual tachometer and revising the Operating Limitations section of the existing Rotorcraft Flight Manual (RFM) for your helicopter. This AD was prompted by the engine manufacturer expanding the RPM (N2) steady-state operation avoidance range limits. This AD retains certain requirements of AD 2013-20-13, and requires revising certain sections of the existing RFM for your helicopter and installing or replacing a placard. The FAA is issuing this AD to address the unsafe condition on these products.
Within 25 hours time-in-service after the effective date of this AD:
(1) For Bell Model 206B helicopters:
(i) Revise the existing Rotorcraft Flight Manual (RFM) for your helicopter by inserting Section 1, Operating Limitations, page 1-2A, of Bell Model 206B RFM BHT-206B-FM-1, Revision B-54, dated May 30, 2018 (BHT-206B-FM-1) or Section 1, Limitations, page 1-5, of Bell Model 206B3 RFM BHT-206B3-FM-1, Revision 17, dated May 30, 2018 (BHT-206B3-FM-1), as applicable to your helicopter. Inserting a different document with “Steady-state operation” information identical to page 1-2A of BHT-206B-FM-1 or page 1-5 of BHT-206B3-FM-1, as applicable to your helicopter, is acceptable for compliance with the requirements of this paragraph.
(ii) Revise the existing RFM for your helicopter by inserting Section 2, Normal Procedures, page 2-8 of BHT-206B-FM-1 or Section 2, Normal Procedures, page 2-10 of BHT-206B3-FM-1, as applicable to your helicopter. Inserting a different document with “Continuous Operation” information identical to page 2-8 of BHT-206B-FM-1 or page 2-10 of BHT-206B3-FM-1, as applicable to your helicopter, is acceptable for compliance with the requirements of this paragraph.
(iii) Remove placard part number (P/N) 230-075-213-121, if installed.
(iv) Install placard P/N 230-075-213-129 or placard P/N 230-075-213-131 on the instrument panel directly below the dual tachometer.
(2) For Bell Model 206L helicopters:
(i) Revise the existing RFM for your helicopter by inserting Section 1, Operating Limitations, page 1-4B, of Bell Model 206L RFM BHT-206L-FM-1, Revision 31, dated May 30, 2018 (BHT-206L-FM-1). Inserting a different document with “Steady-state operation” information identical to page 1-4B of BHT-206L-FM-1 is acceptable for compliance with the requirements of this paragraph.
(ii) Revise the existing RFM for your helicopter by inserting Section 2, Normal Procedures, page 2-10 of BHT-206L-FM-1. Inserting a different document with “Continuous Operation” information identical to page 2-10 of BHT-206L-FM-1 is acceptable for compliance with the requirements of this paragraph.
(iii) Remove placard P/N 230-075-213-123, if installed.
(iv) Install placard P/N 230-075-213-129 or placard P/N 230-075-213-131 on the instrument panel below the dual tachometer.
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.
