Airworthiness directives › 2015-06-10
AD 2015-06-10 Airworthiness Directives; ATR-GIE Avions de Transport Régional Airplanes
Models named: ATR72-212A. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to ATR-GIE Avions de Transport Régional Model ATR72-212A airplanes, certificated in any category, manufacturer serial numbers 468 through 719 inclusive, 723, 776, 777, 779, 821, and 837.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Within 6 months after the effective date of this AD, accomplish the actions specified by paragraphs (g)(1), (g)(2), and (g)(3) of this AD concurrently. (1) Identify the serial number (S/N) of the part number (P/N) S54210394200 (Barry Control P/N 94423-05) LH and right-hand (RH) shock mount pick-up fittings installed on both engine nacelles. Figure 1 to paragraph (g)(1) of this AD identifies the fitting part number and serial number locations. BILLING CODE 4910-13-C ER20AP15.002 (2) Do a detailed inspection of both LH and RH aft side isolator pick-up fittings on both engines to detect cracks, in accordance with paragraph 004.1 of ATR ATR72 Aircraft Maintenance Manual (AMM) Job Instruction Card (JIC) 54-11-61 DVI 10000, dated March 1, 2012. Refer to figure 2 to paragraph (g)(2) of this AD for potential crack location. ER20AP15.003 (3) Do a detailed inspection of both LH and RH aft shock mount cone bolts on both engines to detect cracks, in accordance with paragraph 006.3.A. of ATR ATR72 AMM JIC 71-20-00 DVI 10000. Refer to figure 3 to paragraph (g)(3) of this AD for potential crack location. ER20AP15.004
Unsafe condition
This AD was prompted by reports of several cases of engine shock mount pick-up fittings with cracks or failure on the engine left-hand (LH) aft side attachment. We are issuing this AD to detect and correct an aft side attachment pick up fitting failure associated with a cone bolt failure that could reduce the structural integrity of the concerned engine nacelle, and possibly result in detachment of the engine and consequent reduced control of the airplane.
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