AD 99-18-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | 328 Support Services GmbH | 328-100 | Airworthiness Directives; DORNIER LUFTFAHRT GMBH Model 328-100 Series Airplanes |
Unsafe Condition
Cracking of the support beam of the main landing gear (MLG) fairing could result in reduced structural integrity of the lower part of the MLG fairing, and consequent separation of part of the fairing from the airplane and possible damage to the airplane or injury to persons on the ground.
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Required Actions
Conduct repetitive inspections to detect cracking of the MLG fairing support beam and perform a permanent repair if necessary. Install reinforcement parts for the longitudinal beam of the MLG fairing to terminate AD requirements. If cracks are detected, accomplish a one-time temporary repair, reinspections every 300 flight hours until permanent repair within 6 months, and immediate permanent repair if crack growth exceeds stop-drilled area.
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Compliance Time
Before further flight for detected cracks requiring permanent repair; within 6 months after crack detection for permanent repair; inspections must be conducted at intervals not exceeding 300 flight hours until permanent repair is accomplished.
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Affected Aircraft
DORNIER LUFTFAHRT GMBH Model 328-100 series airplanes, serial numbers 3005, 3008, 3009, and 3011 through 3079 inclusive, except those where Service Bulletin SB-328-53-184, Rev 1 has been accomplished.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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