AD 98-04-35
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-4 | Airworthiness Directives; McDonnell Douglas Model DC-3 and DC-4 Series Airplanes |
| aircraft | The Boeing Company | DC3-G102 | Airworthiness Directives; McDonnell Douglas Model DC-3 and DC-4 Series Airplanes |
| aircraft | The Boeing Company | DC3-G102A | Airworthiness Directives; McDonnell Douglas Model DC-3 and DC-4 Series Airplanes |
| aircraft | The Boeing Company | DC3-G103A | Airworthiness Directives; McDonnell Douglas Model DC-3 and DC-4 Series Airplanes |
| aircraft | The Boeing Company | DC3-G202A | Airworthiness Directives; McDonnell Douglas Model DC-3 and DC-4 Series Airplanes |
| aircraft | The Boeing Company | DC3A-S1C3G | Airworthiness Directives; McDonnell Douglas Model DC-3 and DC-4 Series Airplanes |
| aircraft | The Boeing Company | DC3A-S1CG | Airworthiness Directives; McDonnell Douglas Model DC-3 and DC-4 Series Airplanes |
| aircraft | The Boeing Company | DC3A-S4C4G | Airworthiness Directives; McDonnell Douglas Model DC-3 and DC-4 Series Airplanes |
| aircraft | The Boeing Company | DC3A-SC3G | Airworthiness Directives; McDonnell Douglas Model DC-3 and DC-4 Series Airplanes |
| aircraft | The Boeing Company | DC3A-SCG | Airworthiness Directives; McDonnell Douglas Model DC-3 and DC-4 Series Airplanes |
Unsafe Condition
The unsafe condition is the lack of adequate procedures and limitations in the Airplane Flight Manual (AFM) to recognize and exit severe icing conditions, which could lead to continued flight in icing conditions outside the certification envelope, increasing the risk of hazardous roll control anomalies or other unsafe situations.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
AFM revisions must provide flight crews with visual cues to identify icing conditions outside certification parameters and outline steps to safely exit those conditions, including immediate action to leave such environments.
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
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