AD 77-02-02

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AD Number:
77-02-02
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
BOEING Model 727-100 and -200 Series Airplanes
Subject:
Static Port Fittings
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
02/22/1977
Make:
The Boeing Company
Model:
727-100 Series | 727-200 Series
Product Type:
Aircraft
Product Subtype:
Large Airplane
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
Updated RGL applicability to match AD applicability; CAR C-11-185
AIRWORTHINESS DIRECTIVES FINAL RULES: 77-02-02
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-2811

AD NUMBER:   77-02-02

SUBJECT HEADING:   BOEING Model 727-100 and -200 Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective February 22, 1977.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   77-02-02 BOEING: Amendment 39-2811. Applies to Boeing Model 727-100 and -200 series airplanes certificated in all categories with .047" dia. static sensing holes. Compliance required within 3000 hours time in service after the effective date of this AD unless already accomplished.
To prevent fluctuations in airspeed and altitude information due to water being ingested and retained in the static port fittings, enlarge the static port sensing holes from .047" dia. to .125" dia. in accordance with Boeing Service Bulletin 727-34-94 (to be released) or later FAA approved service bulletins, or in a manner approved by the Chief, Engineering and Manufacturing Branch, FAA Northwest Region.
Boeing 727-100 airplanes already incorporating Boeing S.B. 727-25-42, Revision 1, dated March 4, 1968, with elbow fitting MS21908D6, and Boeing S.B. 727-34-57, dated April 7, 1968, enlarging the static sensing holes, are in compliance with this AD.
The manufacturer's specifications and procedures identified and described in this directive are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1).
All persons affected by this directive who have not already received these documents from the manufacturer may obtain copies upon request to Boeing Commercial Airplane Company, P. O. Box 3707, Seattle, Washington 98124. The documents may also be examined at FAA Northwest Region, 9010 East Marginal Way South, Seattle, Washington.
This amendment becomes effective February 22, 1977.

FOOTER: