Airworthiness directives › 2019-07-02
AD 2019-07-02 Airworthiness Directives; Robinson Helicopter Company Helicopters
Makes named: robinson. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD becomes effective May 17, 2019.
Compliance
(1) The Manager, Los Angeles ACO Branch, FAA, may approve AMOCs for this AD. Send your proposal to: Danny Nguyen, Aerospace Engineer, Los Angeles ACO Branch, Compliance and Airworthiness Division, FAA, 3960 Paramount Blvd., Lakewood, California 90712; telephone (562) 627-5247; email 9-ANM-LAACO-AMOC-REQUESTS@faa.gov. (2) For operations conducted under a 14 CFR part 119 operating certificate or under 14 CFR part 91, subpart K, we suggest that you notify your principal inspector, or lacking a principal inspector, the manager of the local flight standards district office or certificate holding district office before operating any aircraft complying with this AD through an AMOC.
Required actions
Joint Aircraft Service Component (JASC) Code: 7910, Engine Oil Storage (Airframe Furnished).
Unsafe condition
Within 100 hours time-in-service: (1) Visually inspect the oil tank outlet fitting color to determine if it is blue. If the fitting is blue, before further flight, replace the tank with an oil tank that does not have a blue fitting. (2) Locate the G689-1 oil tank assembly identification ink stamp on the top surface of the oil tank, and determine the revision letter. (i) If the identification ink stamp is followed by a revision letter F, G, H, or I unless previously installed, install a G805-1 angle as follows: (A) Drain the engine oil and disconnect the F723-1 line assembly from the tank fitting at the firewall, using as reference Figure 1 of Robinson Helicopter Company R66 Service Bulletin SB-21A, Revision A, dated June 6, 2017. (B) Pinch the flanges of G805-1 angle at the minimum required to enable insertion, and insert the angle in the oil tank outlet fitting until the angle snaps in place. (C) Connect the F723-1 line assembly to the tank fitting. Special torque nut to 675 in.-lb. Torque stripe the fitting. (ii) If the identification ink stamp is followed by a revision letter J, determine if there is a yellow dot near the ink stamp. A yellow dot indicates that the angle has been pre-installed and that no further action is required by this AD. If there is not a yellow dot near the ink stamp, install a G805-1 angle by following the procedures in paragraphs (e)(2)(i)(A) through (e)(2)(i)(C) of this AD. (iii) If the identification ink stamp is followed by a revision letter K, no further action is required by this AD.
Affected ADs
This AD defines the unsafe condition as broken baffle inside an oil tank. This condition could result in loss of oil pressure and oil flow to the engine, leading to engine failure and subsequent forced landing of the helicopter.
Read the original on the Federal Register →
You just looked this one up by hand
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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