| AD Number | 75-22-22 | Status | Active |
| Effective Date | November 10, 1975 | Issue Date | Not specified |
| Docket Number | Unknown | Amendment | 39-2409 |
| Product Type | ["Appliance"] | Product Subtype | Not specified |
| CFR Part | --- - Part 39 | CFR Section | N/A |
| Citation | This information is not available. | ||
| Manufacturer(s) | Pressed Steel Tank Company |
| Model(s) | Compressed Gas Cylinders |
75-22-22 PRESSED STEEL TANK COMPANY: Amendment 39-2409. Applies to all transport category airplanes incorporating DOT-3HT-3000 compressed gas cylinders manufactured by Pressed Steel Tank Company with original test dates on the cylinder from January 1975 through April 1975 and the following serial numbers:
50793R through 51284R
51913R through 52295R
52413R through 52648R
52663R through 52759R
10316S through 10468S
10516S through 10723S
11316S through 11415S
Compliance required within 30 days after the effective date of this Airworthiness Directive, unless already accomplished.
To identify and prevent service use of DOT-3HT-3000 cylinders which were manufactured with the wrong composition steel, accomplish the following:
(a) Remove affected cylinders from aircraft, or before installing affected cylinders in aircraft, retest hydrostatically in accordance with Title 49 Code of Federal Regulations, Part 178; or
(b) Use an equivalent method approved bythe Chief, Engineering and Manufacturing Branch, Great Lakes Region, to determine that the affected cylinder is manufactured with the intended composition steel.
The amendment becomes effective November 10, 1975.