AD 67-03-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Aircraft Corporation | 1049-54 | LOCKHEED Models 649, 749, and 1049 Airplanes |
| aircraft | Lockheed Aircraft Corporation | 1049B-55 (Navy R7V-1) | LOCKHEED Models 649, 749, and 1049 Airplanes |
| aircraft | Lockheed Aircraft Corporation | 1049C-55 | LOCKHEED Models 649, 749, and 1049 Airplanes |
| aircraft | Lockheed Aircraft Corporation | 1049D-55 | LOCKHEED Models 649, 749, and 1049 Airplanes |
| aircraft | Lockheed Aircraft Corporation | 1049E-55 | LOCKHEED Models 649, 749, and 1049 Airplanes |
| aircraft | Lockheed Aircraft Corporation | 1049F-55 (USAF C-121C) | LOCKHEED Models 649, 749, and 1049 Airplanes |
| aircraft | Lockheed Aircraft Corporation | 1049G-82 | LOCKHEED Models 649, 749, and 1049 Airplanes |
| aircraft | Lockheed Aircraft Corporation | 1049H-82 | LOCKHEED Models 649, 749, and 1049 Airplanes |
| aircraft | Lockheed Aircraft Corporation | 649-79 | LOCKHEED Models 649, 749, and 1049 Airplanes |
| aircraft | Lockheed Aircraft Corporation | 649A-79 | LOCKHEED Models 649, 749, and 1049 Airplanes |
Unsafe Condition
Propeller vibratory stresses due to continuous ground running between 2,300 and 2,650 r.p.m. with propeller governing and continuous static ground running in a crosswind above 2,650 r.p.m.
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Required Actions
Amend the FAA-approved Airplane Flight Manual to include prohibitions against continuous ground running between 2,300 and 2,650 r.p.m. with propeller governing and continuous static ground running in a crosswind above 2,650 r.p.m.
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Compliance Time
within the next 200 hours' time in service after the effective date of this AD
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Affected Aircraft
Lockheed Models 649, 749, and 1049 Airplanes powered by Wright 749C18BD-1 and 975C18CB-1 engines equipped with Hamilton Standard 43E60/6869-0, 43E60/6901-0, and 43E60/6903-0 propellers
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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