AD 47-43-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Aircraft Corporation | 18 | LOCKHEED Model 18 |
Unsafe Condition
Elevator push-pull rod bolts may have shank diameters outside the specified limits of 0.248 to 0.250 inches, leading to potential failure of the elevator control system.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove bolts connecting the elevator push-pull rod to the elevator horn and bellcrank. Ascertain shank diameter falls within 0.248 to 0.250 inches. Replace bolts outside limits with NAS 54-12 bolts and placard push-pull rod with part number 72149.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
prior to next periodic inspection
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Lockheed Aircraft Corporation Model 18, all serial numbers.
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.