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AD 61-22-04

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Airworthiness directive · Cabin Pressurization Static System · D & R Nevada 22 and 22M

FAA copy· 20 KB
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AboutSource files 1
Effective
November 21, 1961
Models
22, 22M
Data sheet
TCDS4A27
Product
Aircraft · Large 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.

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The airworthiness directive

61-22-04 CONVAIR: Amdt. 352 Part 507 Federal Register October 21, 1961. Applies to All Model 22 (880) Aircraft.

Compliance required as indicated.

Reinspection of the pressurization system indicates that under certain conditions a single malfunction in the pressurization static system could cause the aircraft to be pressurized beyond the structural limits. To provide the required level of safety, the following, or FAA approved equivalent shall be accomplished within the next 250 hours' time in service after effective date of this AD:

(a) Rework existing static system to provide either

(1) A separate static sensing source for each cabin outflow valve, or

(2) A static sensing source common to the two outflow valves and a separate static sensing source for the cabin pressure controller.

(Convair Service Bulletin No. 21-23 dated March 25, 1961, covers the same subject.)

This directive effective November 21, 1961.

Affected TCDS · 1

The type certificate data sheets for the models this AD names, matched by model and maker.

TCDS 4A27CV Nevada, LLCNames all 2 models: 22 and 22M

Registered aircraft

No registered aircraft matched this AD’s modelsForeign aircraft aren’t included, and ADs on propellers and appliances aren’t matched by model.