- Models
- Army AT-11, C18S
- Data sheets
- TCDSA-2-582TCDSA-757
- Registered aircraft
- 13 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 January 21, 2026.
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 | 19 KB | 5d3d4917…fe79b75 | FAA DRS (API key needed) |
On this page
The airworthiness directive
47-33-03 BEECH: (Was Mandatory Note 5 of AD-757-2 and Mandatory Note 4 of AD- 582-2.) Applies to AT-11 and C18S Aircraft.
To be accomplished prior to certification or, if certificated, on next periodic inspection but not later than November 1, 1947.
In order to provide better tail cone drainage, add two drain holes in the tail cone and two 1/4-inch drain holes in the fuselage bulkhead No. 15 as shown in Figure 2.
(Beech Service Bulletin No. C18-7 covers this same subject.)
Affected TCDS · 2
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 13
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1942 | 1 |
|---|---|
| 1943 | 2 |
| 1944 | 5 |
| 1945 | 1 |
4 with no year recorded