- Models
- 415-C, 415-CD, 415-D
- Registered aircraft
- 1,005 matched by model
- Product
- Aircraft · Small airplane
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 | 20 KB | 1c852d15…cef51c0 | FAA DRS (API key needed) |
On this page
The airworthiness directive
55-22-02 ERCO: Applies to 415-C, -CD and -D Aircraft Serial Numbers 113 Through 2468 for Fuselage Tank Replacement; Serial Numbers 113 Through 2622 For Wing Tank Replacements.
Inspection required each 25 hours; replacement at time leakage discovered.
Unless the terneplate fuselage fuel tank has been replaced with a stainless steel tank and the terneplate wing fuel tanks replaced with aluminum alloy or stainless steel tanks, the tanks should be inspected frequently for signs of leakage at intervals not greater than 25 hours. If tank leakage is observed, the tank should be replaced with one of stainless steel or aluminum alloy, as required, before the next flight.
Erco Service Department Bulletins No. 10 and No. 10A and Memorandums No. 31 and 43 pertain to the inspection and replacement of these tanks.
This supersedes AD 47-50-10.
Affected TCDS · 2
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 1,005
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1940 | 3 |
|---|---|
| 1941 | 8 |
| 1945 | 13 |
| 1946 | 719 |
| 1947 | 71 |
| 1948 | 4 |
| 1953 | 1 |
| 1955 | 2 |
| 1956 | 1 |
| 1957 | 1 |
| 1961 | 1 |
| 1963 | 1 |
180 with no year recorded