AD 2012-12-22
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | BAE | Systems (Operations) Limited | Airworthiness Directives; BAE Systems (Operations) Limited Airplanes |
Unsafe Condition
Crack found on the left-hand sidewall well on the nose landing gear (NLG), which could result in failure of the sidewall and consequent in-flight rapid decompression of the cabin and injury to passengers.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform a high frequency eddy current inspection of the stiffeners on the left-hand sidewall on the NLG bay for cracks. Repair or replace the sidewall stiffeners if cracks are found. Optional replacement of the sidewall stiffeners with specified part numbers terminates repetitive inspections.
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Compliance Time
Before the accumulation of 12,000 total flight cycles or within 4,000 flight cycles after the effective date of this AD, whichever occurs later.
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Affected Aircraft
BAE Systems (Operations) Limited Model BAe 146-100A, -200A, and -300A airplanes; and Model Avro 146-RJ70A, 146-RJ85A, and 146-RJ100A airplanes; all serial numbers; on which the left-hand sidewall of the nose landing gear (NLG) bay has specific part numbers installed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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