- Effective
- July 14, 1980
- Model
- R22
- Data sheet
- TCDSH10WE
- Registered aircraft
- 133 matched by model
- Product
- Aircraft · Rotorcraft
- Amendment
- 39-3834
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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On this page
The airworthiness directive
80-11-07 ROBINSON HELICOPTER COMPANY: Amendment 39-3834. Applies to Model R22 series helicopters certificated in all categories.
Compliance is required as indicated.
To prevent main rotor blade structural failure, accomplish the following:
(a) Prior to further flight remove from service all main rotor blades Serial numbers 1 through 91 and replace with like serviceable part.
(b) Mark all blades Serial numbers 1 through 91 "UNAIRWORTHY" on the blade upper surface at the approximate mid-span with lettering at least 2 inches high and, using a metal stamp, mark "UNAIRWORTHY" on data plate.
This supersedes Amendment 39-3751, (45 FR 26032), AD 80-08-08.
This amendment becomes effective July 14, 1980, and was effective earlier for all recipients of the telegram T80WE25 dated May 20, 1980.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 133
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1975 | 1 |
|---|---|
| 1977 | 1 |
| 1979 | 1 |
| 1980 | 2 |
| 1981 | 12 |
| 1982 | 9 |
| 1983 | 5 |
| 1984 | 1 |
| 1985 | 1 |
| 1986 | 1 |
| 1993 | 2 |
| 1997 | 3 |
| 1998 | 2 |
| 1999 | 5 |
| 2003 | 1 |
| 2004 | 17 |
| 2006 | 1 |
| 2007 | 10 |
| 2008 | 3 |
| 2012 | 2 |
| 2013 | 1 |
| 2014 | 2 |
| 2015 | 4 |
| 2016 | 1 |
| 2018 | 3 |
| 2019 | 1 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 2 |
| 2026 | 1 |
31 with no year recorded