AD 84-06-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Hamburger Flugzeugbau G.m.b.H. | HFB 320 Hansa | Airworthiness Directives; MESSERSCHMITT-BOLKOW-BLOHM GmbH Model HFB-320 Airplanes |
Unsafe Condition
Failure of the stabilizer/elevator outboard bearing housing fittings due to cracks greater than 0.79 inches.
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Required Actions
Perform a one-time inspection of the stabilizer/elevator outboard bearing housing fittings within 25 hours time in service or 45 days after the effective date, whichever occurs first. Replace fittings with cracks greater than 0.79 inches prior to further flight. Stop drill fittings with cracks 0.79 inches or less and replace them within six months.
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Compliance Time
within 25 hours time in service or 45 days after the effective date of this AD, whichever occurs first
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Affected Aircraft
MESSERSCHMITT-BOLKOW-BLOHM GmbH Model HFB-320 airplanes listed in HFB-320 Service Bulletin 55-8 dated September 14, 1983
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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