AD 63-17-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Martin Corporation | 1329-23A | LOCKHEED Model 1329 Aircraft |
| aircraft | Lockheed Martin Corporation | 1329-23D | LOCKHEED Model 1329 Aircraft |
Unsafe Condition
Cracks in the rib flanges of the horizontal stabilizer box section
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Post placards indicating airspeed limits (V MO = 300 knots EAS, M MO = Mach 0.82) and a restriction on speed brake use; inspect the horizontal stabilizer within 20 hours' time in service per Lockheed Bulletin No. 329-142; replace with stabilizer P/N JE 205-502 or equivalent modification to eliminate AD compliance.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 20 hours' time in service after the effective date of this AD
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Affected Aircraft
Lockheed Model 1329 Aircraft, serial numbers 5001 and up, models 1329-23A and 1329-23D
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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