AD 2005-07-15
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | Various | Airworthiness Directives; Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) Airplanes |
Unsafe Condition
Reports of incomplete drainage of the Auxiliary Power Unit (APU) enclosure. Negative pressure condition developing in the APU enclosure when the APU is operating on the ground, which could create a potential fire hazard if flammable fluid leakage occurs inside the APU enclosure and cannot be drained overboard.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify the APU cooling air exhaust by performing all actions in the Accomplishment Instructions of Bombardier Service Bulletin 601R-49-015, dated November 6, 1998, except submitting a comment sheet and compliance sheet. No person may install an APU enclosure with Canadair part number 601R97150-13 or Avica part number 15A104-101 unless the unit has been modified in accordance with the AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 2,000 flight hours after the effective date of the AD, or within 16 months after the effective date of this AD, whichever occurs first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Bombardier Model CL-600-2B19 (Regional Jet Series 100 and 440) airplanes; certified in any category; serial numbers 7003 through 7067 inclusive and 7069 through 7254 inclusive.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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