AD 77-10-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC3-G102 | Airworthiness Directives; MCDONNELL DOUGLAS DC-3 and C-47 Series Airplanes |
| aircraft | The Boeing Company | DC3-G102A | Airworthiness Directives; MCDONNELL DOUGLAS DC-3 and C-47 Series Airplanes |
| aircraft | The Boeing Company | DC3-G103A | Airworthiness Directives; MCDONNELL DOUGLAS DC-3 and C-47 Series Airplanes |
| aircraft | The Boeing Company | DC3-G202A | Airworthiness Directives; MCDONNELL DOUGLAS DC-3 and C-47 Series Airplanes |
| aircraft | The Boeing Company | DC3A-S1C3G | Airworthiness Directives; MCDONNELL DOUGLAS DC-3 and C-47 Series Airplanes |
| aircraft | The Boeing Company | DC3A-S1CG | Airworthiness Directives; MCDONNELL DOUGLAS DC-3 and C-47 Series Airplanes |
| aircraft | The Boeing Company | DC3A-S4C4G | Airworthiness Directives; MCDONNELL DOUGLAS DC-3 and C-47 Series Airplanes |
| aircraft | The Boeing Company | DC3A-SC3G | Airworthiness Directives; MCDONNELL DOUGLAS DC-3 and C-47 Series Airplanes |
| aircraft | The Boeing Company | DC3A-SCG | Airworthiness Directives; MCDONNELL DOUGLAS DC-3 and C-47 Series Airplanes |
| aircraft | The Boeing Company | DC3C-R-1830-90C | Airworthiness Directives; MCDONNELL DOUGLAS DC-3 and C-47 Series Airplanes |
Unsafe Condition
Flexible hose components of propeller feathering lines forward of the firewall may fail due to damage from a powerplant fire, compromising fire resistance integrity.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace flexible hose components of propeller feathering lines forward of the firewall with lines and fittings meeting specified fire resistance requirements. Acceptable assemblies include Resistoflex SSFR-3800-10, Aeroquip 680-10S with protective sleeves, Aeroquip 309009, 309009-8S, 634000-8/-10, or TSO-C42 compliant hose assemblies. Equivalent solutions may be used with FAA approval.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
By the first engine change after June 16, 1977, or October 1, 1977, whichever occurs earlier, unless previously accomplished under AD 55-15-03 as amended by Amendment 55-24 to Part 507.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
McDonnell Douglas DC-3 and C-47 series airplanes, certificated in all categories, using Hamilton Standard propellers.
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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