- Effective
- June 18, 1981
- Models
- DHC-2 Mk.I, DHC-2 Mk.II, DHC-2 Mk.III
- Data sheet
- TCDSA-806
- Registered aircraft
- 140 matched by model
- Product
- Aircraft · Small airplane
- Amendment
- 39-4134
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
81-13-01 DEHAVILLAND: Amendment 39-4134. Applies to all DeHavilland DHC-2 series airplanes, certificated in all categories.
Compliance required as indicated.
Affects the elevator butt ribs (inboard), P/N C2TE-29ND (RH and LH), and doublers, P/N C2TE-9ND (RH and LH).
a. Within the next 75 hours in service after the effective date of this AD, unless already accomplished within the last 325 hours in service, and thereafter at intervals not to exceed 400 hours in service from the last inspection, inspect visually with a 10-power glass, the left and right elevator butt ribs and doublers for cracks.
b. Replace or repair cracked parts, before further flight, in accordance with DeHavilland Service Bulletin (S/B) No. 2/30, or equivalent.
c. Equivalent parts or repairs must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region.
d. Upon submission of substantiating data by an owner or operator, through an FAA maintenance inspector,the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region, may adjust the compliance times specified in this AD.
This amendment becomes effective June 18, 1981.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 140
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1949 | 2 |
|---|---|
| 1951 | 4 |
| 1952 | 9 |
| 1953 | 8 |
| 1954 | 13 |
| 1955 | 9 |
| 1956 | 7 |
| 1957 | 19 |
| 1958 | 7 |
| 1959 | 9 |
| 1960 | 2 |
| 1961 | 2 |
| 1962 | 1 |
| 1963 | 1 |
| 1964 | 5 |
| 1965 | 3 |
| 1966 | 7 |
| 1967 | 3 |
| 1968 | 3 |
26 with no year recorded