AD 69-11-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 707-300B Series | BOEING Model 707-300B and 707-300C Series Airplanes |
| aircraft | The Boeing Company | 707-300C Series | BOEING Model 707-300B and 707-300C Series Airplanes |
Unsafe Condition
Cracking of the control rod end of the rudder power control unit due to installation of units with Bertea Serial Number 760 through 818.
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Required Actions
Remove rudder power units (Boeing Part Number 10-60815) with Bertea Serial Number 760 through 818 and replace with units of the same part number but different serial numbers. The rod end (Bertea Part Number 60043-9 or Schafer Part Number YTD 112A) must be replaced following FAA-approved manufacturer instructions. Ferrying is restricted except under specific special flight permits.
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Compliance Time
Prior to next flight
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Affected Aircraft
Boeing Model 707-300B and 707-300C series airplanes with specific serial numbers including AA 20170, PA 20030-20034 (excluding 20032), LU 20123, OA 20035, TP 19969, LY 20097, PK 19866, NW, RD, PK, and EJ serial numbers where Bertea-sourced rudder power control units are installed.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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