Airworthiness directives › 2016-19-16
AD 2016-19-16 Airworthiness Directives; The Boeing Company Airplanes
Models named: 707-300, 707-300B, 707-300C series, 727C, 727-100C, 727-200F series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
The Boeing Company airplanes, certificated in any category, as identified in paragraphs (c)(1) and (c)(2) of this AD. (1) Model 707-300, 707-300B, and 707-300C series airplanes, as identified in Boeing 707 Alert Service Bulletin A3536, Revision 1, dated September 16, 2015. (2) Model 727C, 727-100C, and 727-200F series airplanes, as identified in Boeing Alert Service Bulletin 727-52A0150, Revision 1, dated November 5, 2015.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
(1) Except as provided by paragraph (k)(l) of this AD, at the applicable times specified in table 1 of paragraph 1.E., “Compliance,” of Boeing 707 Alert Service Bulletin A3536, Revision 1, dated September 16, 2015 (for Model 707-300, 707-300B, and 707-300C series airplanes); or Boeing Alert Service Bulletin 727-52A0150, Revision 1, dated November 5, 2015 (for Model 727C, 727-100C, and 727-200F series airplanes): Do the actions specified in paragraphs (g)(1)(i) through (g)(1)(iv) of this AD in accordance with the Accomplishment Instructions of Boeing 707 Alert Service Bulletin A3536, Revision 1, dated September 16, 2015 (for Model 707-300, 707-300B, and 707-300C series airplanes); or Boeing Alert Service Bulletin 727-52A0150, Revision 1, dated November 5, 2015 (for Model 727C, 727-100C, and 727-200F series airplanes). (i) A general visual inspection of the MCD for broken or missing cam latches, latch pins, and latch pin cross bolts. (ii) Torque the cross bolts in the latch pins. (iii) Measure the extension of the latch pins. (iv) Perform a general visual inspection of all cam latches for lip deformation. (2) Except as required by paragraph (k)(2) of this AD, after accomplishing the actions specified in paragraphs (g)(1)(i) through (g)(1)(iv) of this AD: Do all applicable related investigative and corrective actions, replace all alloy steel cross bolts through the latch pins with corrosion resistant steel (CRES) cross bolts, repeat the applicable inspections, and do the check of the MCD rig and the latch mechanism adjustment test, at the applicable times and intervals specified in table 1 of paragraph 1.E., “Compliance,” and in accordance with the Accomplishment Instructions of Boeing 707 Alert Service Bulletin A3536, Revision 1, dated September 16, 2015 (for Model 707-300, 707-300B, and 707-300C series airplanes); or Boeing Alert Service Bulletin 727-52A0150, Revision 1, dated November 5, 2015 (for Model 727C, 727-100C, and 727-200F series airplanes). Accomplishment of the check of the MCD rig terminates the repetitive inspections required by this paragraph.
Unsafe condition
This AD was prompted by a report that a cam latch on the main cargo door (MCD) broke during flight. We are issuing this AD to detect and correct discrepancies of the cam latches, latch pins, and latch pin cross bolts. Such discrepancies could reduce the structural integrity of the MCD, and result in potential loss of the cargo door and rapid decompression 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