Airworthiness directives › 2013-25-03
AD 2013-25-03 Airworthiness Directives; the Boeing Company Airplanes
Models named: 767-200, -300, -300F, -400ER series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to all the Boeing Company Model 767-200, -300, -300F, and -400ER series airplanes, certificated in any category.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
This paragraph restates the requirements of paragraph (a) of AD 2000-17-05, Amendment 39-11879 (65 FR 51754, August 25, 2000). For Model 767-200, -300, and -300F series airplanes, line numbers 1 through 800 inclusive: Within 30 days after September 11, 2000 (the effective date AD 2000-17-05), perform a functional check of one shear rivet in all six elevator PCA bellcrank assemblies to determine the condition of the shear rivets, in accordance with Paragraph 3 of the Accomplishment Instructions of Boeing Alert Service Bulletin 767-27A0166, dated August 17, 2000. Doing the actions required by paragraphs (j), (k), and (l) of this AD terminates the requirements of this paragraph, paragraph (g)(2), and paragraph (g)(3) of this AD. (1) If all penetration depths, when measured per Figure 2 of Boeing Alert Service Bulletin 767-27A0166, dated August 17, 2000, are 0.50 inch or more, no further action is required by paragraph (g), including all subparagraphs, of this AD. (2) If any penetration depth, when measured per Figure 2 of Boeing Alert Service Bulletin 767-27A0166, dated August 17, 2000, is 0.35 inch or more, but less than 0.50 inch, rework or replace the bellcrank assembly with a new or serviceable bellcrank assembly within 400 flight hours after accomplishing the functional check. After installation of a new or serviceable bellcrank assembly, and prior to further flight, repeat the functional check of all the bellcrank assemblies to make sure the rivets are still in good condition (as specified in Boeing Alert Service Bulletin 767-27A0166, dated August 17, 2000) after installation, in accordance with Figure 2 of Boeing Alert Service Bulletin 767-27A0166, dated August 17, 2000. (3) If any penetration depth, when measured per Figure 2 of Boeing Alert Service Bulletin 767-27A0166, dated August 17, 2000, is less than 0.35 inch, prior to further flight, rework or replace the bellcrank assembly with a new or serviceable bellcrank assembly. After installation of a new or serviceable bellcrank assembly, and prior to further flight, repeat the functional check of all the bellcrank assemblies to make sure the rivets are still in good condition (as specified in Boeing Alert Service Bulletin 767-27A0166, dated August 17, 2000) after installation, in accordance with Figure 2 of Boeing Alert Service Bulletin 767-27A0166, dated August 17, 2000.
Unsafe condition
This AD was prompted by reports of failed shear rivets in the bellcrank assemblies of the elevator power control actuator (PCA). We are issuing this AD to prevent continued operation with yielded or failed shear rivets in the elevator PCA bellcrank assemblies, and to prevent certain failures or jams in the elevator system from causing a hardover of the elevator surface, resulting in a significant pitch upset and possible loss of control of the airplane.
Affected ADs
This AD supersedes AD 2000-17-05, Amendment 39-11879 (65 FR 51754, August 25, 2000); and AD 2001-04-09, Amendment 39-12128 (66 FR 13227, March 5, 2001). This AD affects AD 2007-24-08, Amendment 39-15274 (72 FR 67236, November 28, 2007).
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