AD 92-02-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 747-100 Series | Airworthiness Directives; BOEING: Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-100B Series | Airworthiness Directives; BOEING: Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-100B SUD Series | Airworthiness Directives; BOEING: Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-200B Series | Airworthiness Directives; BOEING: Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-200C Series | Airworthiness Directives; BOEING: Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-200F Series | Airworthiness Directives; BOEING: Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-300 Series | Airworthiness Directives; BOEING: Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-400 Series | Airworthiness Directives; BOEING: Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-400D Series | Airworthiness Directives; BOEING: Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-400F Series | Airworthiness Directives; BOEING: Model 747 Series Airplanes |
Unsafe Condition
Cracking of doorstop support fittings made of 7079-T6 aluminum could result in sudden decompression of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform an initial high frequency eddy current inspection of doorstop support fittings to determine material type. For 7079-T6 aluminum fittings, visually inspect for cracking every 2,000 flight cycles. Replace cracked 7079-T6 fittings with 7075-T73 aluminum fittings. Replace all 7079-T6 fittings to terminate repetitive inspections.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 500 flight cycles after the effective date of this AD, unless previously accomplished within the last 1,500 flight cycles
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 747 series airplanes, line number 001 through 113
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.