AD 2012-15-16
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | Various | Airworthiness Directives; Bombardier, Inc. Airplanes |
Unsafe Condition
Various pushrods had been manufactured with tubes having the incorrect heat treatment, using 6061-T4 instead of 6061-T6.
Required Actions
Replace the affected pushrod assembly, incorporating Modsum 8Q101334, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 8-27-100, Revision A, dated March 22, 2011, or Modsum 8Q101335, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 8-32-156, dated February 26, 2010, or Modsum 4-113457, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 84-32-28, dated November 27, 2008, or Modsum 4-113455, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 84-27-21, Revision A, dated March 22, 2011, or Modsum 8Q101333, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 8-27-99, dated October 10, 2008.
Compliance Time
Within 3,000 flight hours after the effective date of this AD, or within 6,000 flight hours after the effective date of this AD, depending on the specific model and serial number.
Affected Aircraft
Bombardier, Inc. Model DHC-8 series airplanes, including Model DHC-8-102, -103, -106, -201, -202, -301, -311, and -315 airplanes, and Model DHC-8-400, -401, and -402 airplanes.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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