AD 2010-21-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; BAE SYSTEMS (OPERATIONS) LIMITED Model BAe 146 and Avro 146-RJ Airplanes |
Unsafe Condition
Stress corrosion failures in the region of the rear spar root joint attachment fitting at wing rib 2, which could lead to reduced structural integrity of the wing, and consequent reduced controllability of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Conduct a general inspection to identify the type of bolt and nut at each location. Perform external inspections of the bolt installation of the fuel tanks, including visual inspection for proper nut installation, nut seating, and fuel seepage; check for gaps between the fitting and wing structure; check nuts with a suitable torque spanner; and perform either an ultrasonic inspection for damaged bolts or a torque check of the tension bolts. Conduct related investigative actions such as inspecting sealant, checking bolts for damage or evidence of improper tightening, examining wear patterns on seating surfaces, visually inspecting bolt holes and surrounding areas for damage, and confirming compliance with specifications for hole edge radius. Take corrective actions, including replacing bolts or repairing defects in accordance with approved repair data from BAE Systems.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the compliance times specified in BAE Systems SB 57-033 Revision 9, counted from the effective date of the AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
All BAE Systems (Operations) Limited Model BAe 146-100A, -200A, and -300A airplanes, and Model Avro 146-RJ70A, 146-RJ85A, and 146-RJ100A airplanes, certificated in any category.
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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