- Models
- DC-6, DC-6A, DC-6B
- Registered aircraft
- 17 matched by model
- 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.
| File | Size | SHA-256 | Original |
|---|---|---|---|
| FAA DRS HTML | 19 KB | bb1071fd…dc42e5f | FAA DRS (API key needed) |
On this page
The airworthiness directive
49-06-02 DOUGLAS: Applies to DC-6 Aircraft.
To be accomplished at every 8,000 hours of total flight time.
Replace the following attachment bolts: (1) fuselage to center wing, (2) outer wing to center wing, (3) vertical stabilizer to fuselage, (4) horizontal stabilizer to fuselage and, (5) engine mount to firewall. The 8,000-hour period may be extended to 16,000 hours when studs 2325933 or 2340697, 2353832, 4329243 and 4333164 are replaced with studs 2361992, 2361993, 4361995 and 4361994, respectively, having letter "R" stamped on thread end and bolts in all other attachments listed are placed with NAS bolts with threads rolled after heat treatment. Bolts and studs removed from the airplane are to be scrapped and are not to be used again.
(Douglas Service Bulletin DC-6 No. 410 contains a list of all studs and bolts affected and their replacements.)
Affected TCDS · 3
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 17
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1953 | 1 |
|---|---|
| 1954 | 2 |
| 1956 | 1 |
| 1957 | 3 |
| 1958 | 3 |
| 1959 | 1 |
6 with no year recorded