AIRWORTHINESS DIRECTIVE
CAA-AD-057/2000
Date of issue: June 14, 2000
HELICOPTER - MAIN ROTOR - INSPECTION
Applicability:
: to the following Bell Helicopter Textron Canada (BHTC) 206 series helicopters:Model Serial numbers
(i) 206A 004 through 660, and 672 through 715.
(ii) 206B 661 through 671, 716 through 4529, and 5101 through 5267.
(iii) 206L 45004 through 45153, and 4660l through 46617.
(iv) 206L1 45154 through 45790.
(v) 206L3 51001 through 51612.
Effective date: June 30, 2000.
Compliance : Required as indicated in TC AD CF-2000-13.
Remarks:. The compliance of this AD must be recorded in Aircraft Logbook, where applicable the requirements of this AD must be integrated into Aircraft Technical Documentation. Address inquiries concerning this AD to: Civil Aviation Authority, Airworthiness Division, Ruzyne Airport, 160 08 Prague 6, Czech Republic, tel: 420 2 33320922, fax: 420 2 20562270
Ing. Pavel MATOUŠEK
Director of Airworthiness Division
CAA CZ
Canadian AD No.:
CF-2000-13 BELL
Applies to the following Bell Helicopter Textron Canada (BHTC) 206 series helicopters:
Model Serial numbers
(i) 206A 004 through 660, and 672 through 715.
(ii) 206B 661 through 671, 716 through 4529, and 5101 through 5267.
(iii) 206L 45004 through 45153, and 4660l through 46617.
(iv) 206L1 45154 through 45790.
(v) 206L3 51001 through 51612.
Compliance is required as indicated, unless already accomplished.
A raised forging boss is present on some collective lever assemblies (P/N 206-010-467-001). This configuration could lead to the collective lever coming into contact with the swashplate outer ring (P/N 206-010-453), when the collective is in the full down position and the cyclic is in the full forward position. BHTC has issued Alert Service Bulletins (ASBs) 206-00-93 (Revision A) and 206L-00-116, which introduce a one-time inspection followed by either immediate or delayed removal of this raised forging boss, including spares.
To ensure adequate clearance between the collective lever and the swashplate outer ring, accomplish the following:
1. Within 30 days after the effective date of this directive, inspect the clearance between the collective lever assembly and the swashplate outer ring in accordance with the applicable BHTC ASB 206-00-93 Revision A dated 10 May 2000, or 206L-00-116 dated 10 March 2000, or later revisions approved by the Director, Aircraft Certification, Transport Canada. If the clearance is 0.060 inch (1.52 mm) or less, remove the raised forging boss before further flight as per the applicable ASB.
2. Regardless of the clearance measured at the inspection of paragraph 1 above, remove the raised forging boss as per the applicable ASB noted above at the next removal of the collective lever assembly but no later than 31 January 2001.
This directive becomes effective 30 June 2000.
For Minister of Transport
B. Goyaniuk
Chief, Continuing Airworthiness
For further information contact a Transport Canada Centre, or Mr. Bogdan Gajewski, Continuing Airworthiness, Ottawa, telephone (613) 952-4450, facsimile (613) 996-9178 or e-mail gajewsb@tc.gc.ca.