- Effective
- January 23, 1967
- Models
- 1049-54, 1049B-55 (Navy R7V-1), 1049C-55, 1049D-55, 1049E-55, 1049F-55 (USAF C-121C) and 6 more
- Registered aircraft
- 2 matched by model
- Product
- Aircraft · Large airplane
- Amendment
- 39-326
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.
| File | Size | SHA-256 | Original |
|---|---|---|---|
| FAA DRS HTML | 19 KB | 845229cc…bb1daad | FAA DRS (API key needed) |
On this page
The airworthiness directive
67-03-05 LOCKHEED: Amdt. 39-326 Part 39 Federal Register December 22, 1966. Applies to 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.
Compliance required within the next 200 hours' time in service after the effective date of this AD, unless already accomplished.
To minimize propeller vibratory stresses, amend the FAA-approved Airplane Flight Manual to include the following operating limitations:
Continuous ground running between 2,300 and 2,650 r.p.m. with the propeller governing is prohibited.
Continuous static ground running in a crosswind above 2,650 r.p.m. is prohibited.
This directive effective January 23, 1967.
Affected TCDS · 2
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 2
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1949 | 1 |
|---|---|
| 1959 | 1 |