AD 88-24-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 727-100 Series | Airworthiness Directives; BOEING Model 727 Series Airplane |
| aircraft | The Boeing Company | 727-100C Series | Airworthiness Directives; BOEING Model 727 Series Airplane |
| aircraft | The Boeing Company | 727-200 Series | Airworthiness Directives; BOEING Model 727 Series Airplane |
| aircraft | The Boeing Company | 727-200F Series | Airworthiness Directives; BOEING Model 727 Series Airplane |
| aircraft | The Boeing Company | 727 Series | Airworthiness Directives; BOEING Model 727 Series Airplane |
| aircraft | The Boeing Company | 727C Series | Airworthiness Directives; BOEING Model 727 Series Airplane |
Unsafe Condition
Failure of the main landing gear (MLG) to extend as a result of loosening of the self-locking nut at the attachment of the downlock forward pushrod assembly to the downlock torque shaft.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install the bolt, washer, nut, and cotter pin as specified in Boeing Service Bulletins 727-32-0237 (item 5 of Figure 5) and 727-32-0353. An alternate means of compliance or adjustment may be approved by the FAA Manager, Seattle Aircraft Certification Office.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 3,500 flight cycles after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
All Model 727 series airplanes prior to line number 1620, not equipped with the safety bar modification described in Boeing Service Bulletin 727-32-275, Revision 2.
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.