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Airworthiness Directive 2017-25-15

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Official AD 2017-25-15 · FR doc 2017-26949 · 2017-12-18 · airframe

Airworthiness Directives; ATR-GIE Avions de Transport Régional Airplanes

What this AD requires

We are adopting a new airworthiness directive (AD) for certain ATR-GIE Avions de Transport R[eacute]gional Model ATR42-300 and -500 airplanes and Model ATR72-202 and -212A airplanes. This AD requires identifying the serial number of the dual distributor valve (DDV), and replacement of affected DDVs. This AD was prompted by an investigation performed on a failed DDV that revealed a nonconformity of crimping on an internal valve. We are issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2017-25-15 applies to

MakesAtr (Avions De Transport Regional)
ModelsATR42-500, ATR72-212A, ATR42-300, ATR72-202, ATR42, ATR72
Serial-conditional — narrows to serials 645–645, 653–653, 657–657, 659–659, 661–661, 663–663, 665–665, 778–778, 994–994, 995–995, 996–996, 998–998, 999–999, 1000–1000, 1020–1020, 348–348, 415–415, 497–497, 501–501, 514–514, 192–192, 411–411, 496–496, 508–508, 509–509, 468–468, 568–568, 595–595, 662–662, 796–796, 920–920, 926–926, 950–950, 1024–1024, 1025–1025, 1028–1028, 1029–1029, 1031–1031, 1032–1032, 1033–1033, 1034–1034, 1035–1035, 1036–1036, 1037–1037, 1039–1039, 1040–1040.

Applies only to specific manufacturer serial numbers (MSNs) per model, per paragraphs (c)(1) through (c)(6): (1) ATR42-500 MSNs 645, 653, 657, 659, 661, 663, 665; (2) ATR72-212A MSNs 778, 994, 995, 996, 998, 999, 1000, 1020; (3) ATR42-300 MSNs 348, 415; (4) ATR42-500 MSNs 497, 501, 514; (5) ATR72-202 MSNs 192, 411, 496, 508, 509; (6) ATR72-212A MSNs 468, 568, 595, 662, 796, 920, 926, 950, 1024, 1025, 1028, 1029, 1031-1037, 1039, 1040. (Groups (1)-(2) = EASA AD 2013-0032 Group 1; groups (3)-(6) = Group 2.)

Whether AD 2017-25-15 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.

How AD compliance is recorded

A valid compliance record (14 CFR 43.9) states:

Method of compliance — The specific action taken (inspected, replaced, modified) and to what revision.
Date — When the work was done.
Aircraft time — Total time in service / tach at compliance — how recurring next-due is computed.
Signature & certificate — The A&P/IA who returned it to service, with certificate number.
Is AD 2017-25-15 complied with on your aircraft?

Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.

Look up a tail number →Read the full directive (Federal Register)

Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.