AD 78-07-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron Aviation Inc. | HS.125 Series 700A | Airworthiness Directives; HAWKER SIDDELEY AVIATION, LTD Model HS-125 Series 700A Airplanes |
Unsafe Condition
Cracking of the attachment lugs of the tee pieces, P/N 25-7PA41, mounted on the master refuel valve, and possible fuel leakage at the area of attachment.
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Required Actions
Within 10 days after the effective date, inspect attachment lugs for cracking and fuel leakage per Hawker Siddeley Alert Service Bulletin 28-A65 Part A. If cracking or leakage found, replace tee pieces with P/N 25-7PA125A before further flight. If no issues found, repeat inspections every three calendar months until replacement by August 1, 1978.
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Compliance Time
Within 10 days after the effective date of this AD, unless already accomplished
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Affected Aircraft
HAWKER SIDDELEY AVIATION, LTD Model HS-125 Series 700A airplanes, S/N NA0201 through NA0210
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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