- Effective
- November 24, 1978
- Models
- A109, A109A, A109A II, A109C, A109E, A109K2
- Data sheet
- TCDSH7EU
- Registered aircraft
- 96 matched by model
- Product
- Aircraft · Rotorcraft
- Amendment
- 39-3346
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.
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| FAA DRS HTML | 20 KB | a76e280c…f844e67 | FAA DRS (API key needed) |
On this page
The airworthiness directive
78-24-02 COSTRUZIONI AERONAUTICHE GIOVANNI AGUSTA: Amendment 39- 3346. Applies to Agusta Model A109 Series helicopters, S/N 7107, 7111, 7126, and 7129, certificated in all categories.
Compliance required before further flight, unless already accomplished, but helicopter may be flown in accordance with FAR 21.197 and 21.199 to a base where the required work can be performed.
To prevent possible failure of main transmission P/N 109-0400-02-01, remove pinion gear P/N 109- 0403-06-01, S/N 18, 24, 25 or 27, from main transmissions S/N 31, 36, 11 and 10, respectively, and replace with new pinion gear of same part number having serial number other than 17 through 32.
This amendment is effective November 24, 1978, as to all persons except those persons to whom it was made immediately effective by the letter dated April 26, 1978, which contained this amendment
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 96
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1980 | 1 |
|---|---|
| 1981 | 2 |
| 1982 | 1 |
| 1984 | 1 |
| 1985 | 3 |
| 1986 | 2 |
| 1987 | 1 |
| 1988 | 2 |
| 1989 | 2 |
| 1990 | 2 |
| 1991 | 4 |
| 1995 | 2 |
| 1997 | 1 |
| 1998 | 3 |
| 1999 | 2 |
| 2000 | 9 |
| 2001 | 6 |
| 2002 | 5 |
| 2003 | 1 |
| 2004 | 5 |
| 2006 | 5 |
| 2007 | 1 |
| 2008 | 2 |
| 2009 | 2 |
| 2010 | 1 |
| 2011 | 1 |
| 2022 | 1 |
28 with no year recorded