AD 94-04-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 727-100 Series | Airworthiness Directives; Boeing Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-100C Series | Airworthiness Directives; Boeing Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-200 Series | Airworthiness Directives; Boeing Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-200F Series | Airworthiness Directives; Boeing Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727 Series | Airworthiness Directives; Boeing Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727C Series | Airworthiness Directives; Boeing Model 727 Series Airplanes |
Unsafe Condition
Cracking of the roller bearing bolts may cause jamming of the affected slat or separation of the slat from the airplane. Certain positional plates may not stop rotation of the roller bearing bolts.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect slat track roller bearing bolts using fluorescent or magnetic particle inspection, depending on material, and replace cracked bolts. Inspect positional plates and replace if gap exceeds 0.020 inch. Replace defective rollers if seized or not turning smoothly. Follow Boeing Service Bulletin 727-57-0172, Revision 3.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Prior to the accumulation of 12,000 total flight cycles, or within 2,500 flight cycles after September 30, 1990, whichever occurs later for initial inspections. Subsequent inspections at intervals not to exceed 5,000 flight cycles. Positional plate inspection required prior to 5,000 flight cycles since modification or within 2,500 flight cycles after AD effective date.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 727 series airplanes, including 727-100, 727-100C, 727-200, 727-200F, 727 Series, and 727C Series, certificated in any category.
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.