- Effective
- September 15, 1973
- Models
- 206A, 206A-1 (OH-58A), 206B, 206B-1
- Data sheet
- TCDSH2SW
- Registered aircraft
- 861 matched by model
- Product
- Aircraft · Rotorcraft
- Amendment
- 39-1714
Unofficial copy of the text in the FAA’s Dynamic Regulatory System. The FAA’s own copy is the authoritative one. DRS record last changed May 30, 2024.
Copies of the files this page was built from, with their SHA-256. Retrieved October 18, 2026.
| File | Size | SHA-256 | Original |
|---|---|---|---|
| FAA DRS HTML | 21 KB | 4792d3f5…0ca7491 | FAA DRS (API key needed) |
On this page
The airworthiness directive
73-19-08 BELL: Amdt. 39-1714. Applies to Bell Model 206A, 206B, 206A-1 and 206B- 1 helicopters certificated in all categories.
Compliance required as indicated.
To prevent possible fatigue cracks in the main rotor retention strap fittings P/N 206-010- 155-11 and -15, and the main rotor retention strap pin, P/N 206-010-123-3, accomplish the following:
a. Remove and replace retention strap fittings, P/N 206-010-155-11 and -15 and pins, P/N 206-010-123-3, with 1100 or more hours total time in service on the effective date of this AD within the next 100 hours time in service.
b. Remove and replace fittings, P/N 206-010-155-11 and -15 and pins, P/N 206- 010-123-3 with less than 1100 hours total time in service on the effective date of this AD, prior to accumulating 1200 hours total time in service.
c. Install replacement fittings and pins in accordance with the appropriate model maintenance and overhaul information manuals and provide corrosion protection as specified in Bell Helicopter Company, Technical Bulletin No. 206-(04-1)-73-1, dated March 9, 1973 or later FAA approved revision or as specified in an equivalent procedure approved by the Chief, Engineering and Manufacturing Branch, Flight Standards Division, Southwest Region, Federal Aviation Administration.
This amendment becomes effective September 15, 1973.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 861
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1954 | 1 |
|---|---|
| 1966 | 1 |
| 1967 | 5 |
| 1968 | 16 |
| 1969 | 12 |
| 1970 | 7 |
| 1971 | 15 |
| 1972 | 22 |
| 1973 | 25 |
| 1974 | 39 |
| 1975 | 38 |
| 1976 | 34 |
| 1977 | 28 |
| 1978 | 40 |
| 1979 | 48 |
| 1980 | 45 |
| 1981 | 52 |
| 1982 | 27 |
| 1983 | 5 |
| 1984 | 7 |
| 1985 | 5 |
| 1986 | 5 |
| 1987 | 4 |
| 1988 | 11 |
| 1989 | 14 |
| 1990 | 7 |
| 1991 | 9 |
| 1992 | 6 |
| 1993 | 24 |
| 1994 | 38 |
| 1995 | 47 |
| 1996 | 4 |
| 1997 | 6 |
| 1998 | 5 |
| 1999 | 4 |
| 2000 | 6 |
| 2001 | 13 |
| 2002 | 7 |
| 2003 | 3 |
| 2004 | 2 |
| 2005 | 5 |
| 2006 | 6 |
| 2007 | 5 |
| 2008 | 3 |
| 2009 | 1 |
154 with no year recorded