AD 2012-03-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | Inc | Airworthiness Directives; Bombardier Inc., Airplanes |
Unsafe Condition
Deformation at the neck of the pressure regulator body on certain oxygen cylinder and regulator assemblies (CRA) due to two batches of raw material that did not meet the required tensile strength.
Required Actions
Inspect oxygen pressure regulators having P/N 806370-06 to determine if the serial number is listed in Table 2 of the Accomplishment Instructions of Bombardier Service Bulletin 700-35-011 (for Model BD-700-1A10 airplanes) or 700-1A11-35-010 (for Model BD-700-1A11 airplanes), both Revision 01, both dated February 1, 2011. If the serial number is listed, replace the affected oxygen CRA in accordance with paragraph 2.C. of the Accomplishment Instructions of Bombardier Service Bulletin 700-35-011 (for Model BD-700-1A10 airplanes) or 700-1A11-35-010 (for Model BD-700-1A11 airplanes), both Revision 01, both dated February 1, 2011.
Compliance Time
Within 7 months after the effective date of this AD
Affected Aircraft
Bombardier, Inc. Model BD-700-1A10 and BD-700-1A11 airplanes, certificated in any category, serial numbers (S/N) 9002 through 9126 inclusive, 9128 through 9312 inclusive, 9314 through 9322 inclusive, 9324 through 9335 inclusive, 9337, 9338, 9340, 9341, 9343, 9344, 9346, 9347, 9350, 9353, 9355, 9356, 9358, 9361, 9365, 9372, 9374, 9384, 9402, 9403, and subsequent.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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