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Airworthiness directives › 2014-16-14

AD 2014-16-14 Airworthiness Directives; The Boeing Company Airplanes

2014-09-23
2014-08-19
39-17938
FAA-2014-0122
Airframe
—

Models named: 737-600, -700, -700C, -800, -900 series. Read the applicability below — it usually turns on serial or part numbers too.

Applicability*9

This AD applies to The Boeing Company Model 737-600, -700, -700C, -800, and -900 series airplanes, certificated in any category, as identified in Boeing Alert Service Bulletin 737-22A1215, dated November 22, 2013.

Compliance

Comply with this AD within the compliance times specified, unless already done.

Required actions

Within 36 months after the effective date of this AD, do the actions specified in paragraphs (g)(1) and (g)(2) of this AD, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 737-22A1215, dated November 22, 2013. (1) Remove any autothrottle computer, part number (P/N) 760SUE1-1 (Boeing P/N 10-62017-51), 760SUE2-2 (Boeing P/N 10-62017-52), 760SUE2-3 (Boeing P/N 10-62017-53), or 760SUE2-4 (Boeing P/N 10-62017-54), from the E1-1 electronics shelf. (2) Install a new or reworked autothrottle computer, P/N 760SUE2-5 (Boeing P/N 10-62017-55) at the E1-1 electronics shelf.

Unsafe condition

This AD was prompted by reports in which a single, undetected, erroneous radio altimeter output caused the autothrottle to enter landing flare retard mode prematurely on approach. We are issuing this AD to prevent a single, undetected, erroneous radio altimeter output from causing premature autothrottle landing flare retard and subsequent loss of automatic speed control, which could result in loss of 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