- Effective
- November 6, 1970
- Model
- 747-100 Series
- Data sheet
- TCDSA20WE
- Registered aircraft
- 5 matched by model
- Product
- Aircraft · Large airplane
- Amendment
- 39-1103
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 | 2ac3d045…020cb37 | FAA DRS (API key needed) |
On this page
The airworthiness directive
70-23-01 BOEING: Amdt. 39-1103. Applies to Boeing Model 747-100 Series airplanes certificated in all categories. Compliance required within the next 200 hours' time in service after the effective date of this ad, unless already accomplished. To prevent failures of the spindle nut, accomplish the following: Replace the wing gear upper side strut spindle nut in accordance with Boeing Service Bulletin 32-2055 dated October 2, 1970, or later FAA approved revision, or an equivalent method approved by the Chief, Aircraft Engineering Division, FAA Western Region. The amendment becomes effective November 6, 1970.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 5
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1969 | 1 |
|---|---|
| 1970 | 2 |
| 1971 | 1 |
| 1976 | 1 |