AD 91-07-19
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 707-100 Long Body | Airworthiness Directives; BOEING Model 707/720 Series Airplanes |
| aircraft | The Boeing Company | 707-100B Long Body | Airworthiness Directives; BOEING Model 707/720 Series Airplanes |
| aircraft | The Boeing Company | 707-100B Short Body | Airworthiness Directives; BOEING Model 707/720 Series Airplanes |
| aircraft | The Boeing Company | 707-200 | Airworthiness Directives; BOEING Model 707/720 Series Airplanes |
| aircraft | The Boeing Company | 707-300 Series | Airworthiness Directives; BOEING Model 707/720 Series Airplanes |
| aircraft | The Boeing Company | 707-300B Series | Airworthiness Directives; BOEING Model 707/720 Series Airplanes |
| aircraft | The Boeing Company | 707-300C Series | Airworthiness Directives; BOEING Model 707/720 Series Airplanes |
| aircraft | The Boeing Company | 707-400 Series | Airworthiness Directives; BOEING Model 707/720 Series Airplanes |
| aircraft | The Boeing Company | 720 Series | Airworthiness Directives; BOEING Model 707/720 Series Airplanes |
| aircraft | The Boeing Company | 720B Series | Airworthiness Directives; BOEING Model 707/720 Series Airplanes |
Unsafe Condition
Structural failure due to aging airplane structural issues requiring modifications listed in Boeing Document D6-54996, Revision B.
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Required Actions
Accomplish structural modifications listed in Section 3 of Boeing Document D6-54996, Revision B, at the earlier of prior to reaching incorporation thresholds or within 4 years after the AD's effective date, whichever occurs later. Also, comply with specified calendar dates in the document.
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Compliance Time
Prior to reaching the incorporation thresholds listed in the Boeing Document or within the next 4 years after the effective date of this AD, whichever occurs later; or prior to reaching the incorporation thresholds specified as calendar dates in the Boeing Document.
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Affected Aircraft
BOEING Model 707/720 series airplanes listed in Boeing Document D6-54996, Revision B, dated December 11, 1990, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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