AD 2012-12-16
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | Various | Airworthiness Directives; Bombardier, Inc. Airplanes |
Unsafe Condition
Cracking of certain fuel access panels of the outer wing, specifically Part Number (P/N) 85714231-001, which could result in arcing and ignition of fuel vapor in the outer wing fuel tank during a lightning strike.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform an external detailed inspection of outer wing access panels having P/N 85714231-001 to locate identification plate rivets. If rivets are not found, remove and inspect the panels internally to determine if the identification plate is installed. Replace panels if necessary. Optionally, conduct repetitive external inspections for cracking and replace cracked panels. Eventually, replace affected fuel access panels with new panels having P/N 85714231-003.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 600 flight hours after the effective date of the AD, with further actions before further flight depending on inspection results.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Bombardier, Inc. Model DHC-8-400, -401, and -402 airplanes; certificated in any category; serial numbers 4001 and 4003 through 4106 inclusive.
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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