Airworthiness Directives; Boeing Model 747 Series Airplanes Powered by Pratt & Whitney JT9D-3 and -7 Series Engines

[Federal Register Volume 65, Number 246 (Thursday, December 21, 2000)]
[Rules and Regulations]
[Pages 80301-80302]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 00-32315]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 2000-NM-329-AD; Amendment 39-11988; AD 2000-23-16]
RIN 2120-AA64


Airworthiness Directives; Boeing Model 747 Series Airplanes 
Powered by Pratt & Whitney JT9D-3 and -7 Series Engines

AGENCY: Federal Aviation Administration, DOT.

ACTION: Final rule; correction.

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SUMMARY: This document corrects a minor error that appeared in 
airworthiness directive (AD) 2000-23-16, that was published in the 
Federal Register on November 21, 2000 (65 FR 69862). The error resulted 
in a reference to a part number that does not exist. That AD is 
applicable to certain Boeing Model 747 series airplanes, and requires 
repetitive inspections and torque checks of the hanger fittings and 
strut forward bulkhead of the forward engine mount and adjacent support 
structure, and corrective actions, if necessary. That AD also provides 
for optional terminating action for the repetitive inspections and 
checks.

EFFECTIVE DATE: Effective December 6, 2000.

FOR FURTHER INFORMATION CONTACT: Tamara Anderson, Aerospace Engineer, 
Airframe Branch, ANM-120S, FAA, Seattle Aircraft Certification Office, 
1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (425) 
227-2771; fax (425) 227-1181.

SUPPLEMENTARY INFORMATION: Airworthiness Directive (AD) 2000-23-16, 
amendment 39-11988, applicable to certain Boeing Model 747 series 
airplanes, was published in the Federal Register on November 21, 2000 
(65 FR 69862). That AD requires repetitive inspections and torque 
checks of the hanger fittings and strut forward bulkhead of the forward 
engine mount and adjacent support structure, and corrective actions, if 
necessary. That AD also provides for optional terminating action for 
the repetitive inspections and checks.
    As published, the amendment contained a minor error in Note 4 which 
identifies installation of two ``BACW10BP* auxiliary power unit'' 
washers. However, this part number does not exist, the correct part 
number is ``BACW10BP*APU.'' The letters ``APU'' were inadvertently 
defined as an acronym meaning ``auxiliary power unit.'' In all other 
respects, the original document is correct.
    Since no other part of the regulatory information has been changed, 
the final rule is not being republished.
    The effective date of this AD remains December 6, 2000.


Sec. 39.13  [Corrected]

    On page 69864, in the third column, Note 4 of AD 2000-23-16 is 
corrected to read as follows:

2000-23-16  Boeing: Amendment 39-11988, Docket 2000-NM-329-AD.
* * * * *

    Note 4: Installation of two BACW10BP*APU washers on Group A 
fasteners accomplished prior to the effective date of this AD in 
accordance with Boeing Service Bulletin 747-54A2159, dated November 
3, 1994, Revision 1, dated June 1, 1995, or Revision 2, dated March 
14, 1996; and pin or bolt protrusion as specified in the 747 
Structural Repair Manual, Chapter 51-30-02 (both referenced in 
Boeing Alert

[[Page 80302]]

Service Bulletin 747-54A2203, dated August 31, 2000); is considered 
acceptable for compliance with the terminating action specified in 
paragraph (b) of this AD.

* * * * *

    Issued in Renton, Washington, on December 13, 2000.
Dorenda D. Baker,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 00-32315 Filed 12-20-00; 8:45 am]
BILLING CODE 4910-13-U

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