AD 59-17-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 707-100 Long Body | Airworthiness Directives; BOEING Model 707 Series Aircraft |
| aircraft | The Boeing Company | 707-100B Long Body | Airworthiness Directives; BOEING Model 707 Series Aircraft |
| aircraft | The Boeing Company | 707-100B Short Body | Airworthiness Directives; BOEING Model 707 Series Aircraft |
| aircraft | The Boeing Company | 707-200 | Airworthiness Directives; BOEING Model 707 Series Aircraft |
| aircraft | The Boeing Company | 707-300 Series | Airworthiness Directives; BOEING Model 707 Series Aircraft |
| aircraft | The Boeing Company | 707-300B Series | Airworthiness Directives; BOEING Model 707 Series Aircraft |
| aircraft | The Boeing Company | 707-300C Series | Airworthiness Directives; BOEING Model 707 Series Aircraft |
| aircraft | The Boeing Company | 707-400 Series | Airworthiness Directives; BOEING Model 707 Series Aircraft |
Unsafe Condition
The complete or partial disintegration of Purolator filter elements P/N 57737-2 with concave bottom plates supplied prior to July 25, 1959, used in pressure filter assembly BAC P/N F-18C-12 or auxiliary return filter BAC P/N 10-3333-1.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Reject all concave bottom type Purolator filter elements P/N 57737-2 supplied prior to July 25, 1959. Replace with flat bottom type P/N 57737-2, concave bottom type P/N 57737-2 dated after July 25, 1959, or approved alternatives like Aircraft Porous Media P/N ACS-1790E-12 or Bendix Filter Division P/N 574615.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Compliance required as indicated.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
All Model 707 Series Aircraft.
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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