AD 80-20-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 747-100 Series | BOEING Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-100B Series | BOEING Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-100B SUD Series | BOEING Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-200B Series | BOEING Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-200C Series | BOEING Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-200F Series | BOEING Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-300 Series | BOEING Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-400 Series | BOEING Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-400D Series | BOEING Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-400F Series | BOEING Model 747 Series Airplanes |
Unsafe Condition
Failure of stringers 18 and 19 between fuselage stations 2360 and 2412 could result in fuselage structural failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify stringers 18 and 19, left and right side, between fuselage stations 2360 and 2412 per Boeing Service Bulletin 747-53-2114, Rev 3 or later FAA-approved revisions. Compliance times may be adjusted by FAA upon operator request with substantiating data.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Prior to January 31, 1981
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 747 series airplanes listed under Groups I and II in Boeing Service Bulletin 747-53-2114, Rev 3 or later FAA-approved revisions.
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.