AD 91-05-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Dornier Luftfahrt GmbH | Dornier 228-100 | Airworthiness Directives; DORNIER Models Do228-100, Do228-101, Do228-200, Do228-201, Do228-202, and Do228-212 Airplanes |
| aircraft | Dornier Luftfahrt GmbH | Dornier 228-101 | Airworthiness Directives; DORNIER Models Do228-100, Do228-101, Do228-200, Do228-201, Do228-202, and Do228-212 Airplanes |
| aircraft | Dornier Luftfahrt GmbH | Dornier 228-200 | Airworthiness Directives; DORNIER Models Do228-100, Do228-101, Do228-200, Do228-201, Do228-202, and Do228-212 Airplanes |
| aircraft | Dornier Luftfahrt GmbH | Dornier 228-201 | Airworthiness Directives; DORNIER Models Do228-100, Do228-101, Do228-200, Do228-201, Do228-202, and Do228-212 Airplanes |
| aircraft | Dornier Luftfahrt GmbH | Dornier 228-202 | Airworthiness Directives; DORNIER Models Do228-100, Do228-101, Do228-200, Do228-201, Do228-202, and Do228-212 Airplanes |
| aircraft | Dornier Luftfahrt GmbH | Dornier 228-212 | Airworthiness Directives; DORNIER Models Do228-100, Do228-101, Do228-200, Do228-201, Do228-202, and Do228-212 Airplanes |
Unsafe Condition
Corrosion around electrical connectors 56VP, 57VP, 58VP, and 59VP (or 23QXa, 24QXa with option IK04) and insufficient cross-sectional area of bonding straps between the horizontal stabilizer and elevator, and lack of an additional grounding strap between the wing rear spar and fuselage may compromise electrical bonding integrity.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace 4 mm2 bonding straps with 6 mm2 straps per SB-228-106 Rev 1; inspect wing front spar area for corrosion per SB-228-152 Rev 1 and remove/treat corrosion before flight if found; install additional grounding strap per SB-228-162. Use special flight permits as allowed and request alternate compliance through FAA.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 300 hours time-in-service after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Dornier Luftfahrt GmbH Models Do228-100, Do228-101, Do228-200, Do228-201, Do228-202, and Do228-212 (serial numbers 7000-7168, 8000-8190, 8175-8179, and 8177)
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
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