Airworthiness directives › 2026-13-52
AD 2026-13-52 Airworthiness Directives; Airbus Canada Limited Partnership (Type Certificate Previously Held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.) Airplanes
Models named: BD-500-1A10, BD-500-1A11. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to all Airbus Canada Limited Partnership (Type Certificate previously held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.) Model BD-500-1A10 and BD-500-1A11 airplanes, certificated in any category.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
(1) As of the effective date of this AD, no person may dispatch an airplane under the operational procedures of the operator's minimum equipment list items corresponding to the operational procedures of the Master Minimum Equipment List (MMEL) items listed in tables 1 and 2 to paragraph (g)(1) of this AD. ER07JY26.000 ER07JY26.001 ER07JY26.002 ER07JY26.003 ER07JY26.004 ER07JY26.005 ER07JY26.006 ER07JY26.007 ER07JY26.008 ER07JY26.009 ER07JY26.010 ER07JY26.011 (2) As of the effective date of this AD, no person may dispatch an airplane if any crew alerting system (CAS) message and associated info message identified in paragraph (g)(2)(i) through (xviii) of this AD is displayed. (i) L WING A/ICE LO HEAT (Caution): 30 L WING A/ICE LO HEAT—CTRL TEMP INOP (Info). (ii) L WING A/ICE LO HEAT (Caution): 30 L WING A/ICE LO HEAT—L HPV FAIL CLSD (Info). (iii) L WING A/ICE LO HEAT (Caution): 30 L WING A/ICE LO HEAT—L WING A/ICE TEMP SNSR INOP (Info). (iv) L WING A/ICE OVHT (Caution): 30 L WING A/ICE OVHT—L WING A/ICE TEMP SNSR INOP (Info). (v) R WING A/ICE LO HEAT (Caution): 30 R WING A/ICE LO HEAT—CTRL TEMP INOP (Info). (vi) R WING A/ICE LO HEAT (Caution): 30 R WING A/ICE LO HEAT—R HPV FAIL CLSD (Info). (vii) R WING A/ICE LO HEAT (Caution): 30 R WING A/ICE LO HEAT—R WING A/ICE TEMP SNSR INOP (Info). (viii) R WING A/ICE OVHT (Caution): 30 R WING A/ICE OVHT—R WING—A/ICE TEMP SNSR INOP (Info). (ix) WING A/ICE FAULT (Advisory): 30 WING A/ICE FAULT—L WING A/ICE VLV LEAK (Info). (x) WING A/ICE FAULT (Advisory): 30 WING A/ICE FAULT—R WING A/ICE VLV LEAK (Info). (xi) AIR SYSTEM FAULT (Advisory): 36 AIR SYSTEM FAULT—L BLEED MON PRESS SNSR INOP (Info). (xii) AIR SYSTEM FAULT (Advisory): 36 AIR SYSTEM FAULT—R BLEED MON PRESS SNSR INOP (Info). (xiii) L BLEED FAIL (Caution): 36 L BLEED FAIL—L BLEED TEMP SNSR INOP (Info). (xiv) L BLEED FAIL (Caution): 36 L BLEED FAIL—L HPV FAIL CLSD (Info). (xv) L BLEED FAIL (Caution): 36 L BLEED FAIL—L PRESS REG SOV INOP (Info). (xvi) R BLEED FAIL (Caution): 36 R BLEED FAIL—R BLEED TEMP SNSR INOP (Info). (xvii) R BLEED FAIL (Caution): 36 R BLEED FAIL—R HPV FAIL CLSD (Info). (xviii) R BLEED FAIL (Caution): 36 R BLEED FAIL—R PRESS REG SOV INOP (Info).
Unsafe condition
This AD was prompted by a report of several missing or broken high pressure valve (HPV) butterfly clips found in a repair shop. The FAA is issuing this AD to address failure of an HPV butterfly clip, which may remain latent and lead to secondary effects ( e.g., bleed leak or overheat conditions) and degradation of the valve sealing function. The unsafe condition, if not addressed, could result in the inability to properly isolate the bleed system when required, uncontrolled hot air leakage, overheating of critical airplane structures and components, and degradation of structural integrity.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1