- Effective
- October 28, 1963
- Models
- 30, 30A
- Data sheet
- TCDS4A30
- 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.
Copies of the files this page was built from, with their SHA-256. Retrieved October 18, 2026.
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The airworthiness directive
63-21-01 GENERAL DYNAMICS: Amdt. 623 Part 507 Federal Register September 26, 1963. Applies to All Model 30 Aircraft.
Compliance required within 500 hours' time in service after the effective date of this AD, unless already accomplished.
To prevent a ground fault in the landing gear ground safety switch which causes the loss of braking without a warning indication, modify the aircraft landing gear anti-skid wiring system as follows in accordance with Convair Service Bulletin No. 32-37A revised February 26, 1963, or an FAA Western Region Engineering approved equivalent:
(a) Add a test switch, relay socket, relay and harnesses;
(b) replace the antiskid and light plastic panel, circuit board and plate; and
(c) reroute the wiring.
(Convair Service Bulletin No. 32-37A pertains to this same modification.)
This directive effective October 28, 1963.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.