AD 92-11-06

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AD Number:
92-11-06
Document Type:
AD Final Rules
Docket Number:
92-NM-06-AD
Subject Heading:
Airworthiness Directives; British Aerospace Model BAe 146-100A, 200A, and 300A Series Airplanes
Subject:
Pitot-Static System
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
07/09/1992
Make:
BAE Systems (Operations) Limited
Model:
BAe 146-100A | BAe 146-200A | BAe 146-300A
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Superseded AD: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Superseded By: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:
AIRWORTHINESS DIRECTIVES FINAL RULES: 92-11-06
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   92-NM-06-AD

AMENDMENT:   39-8256

AD NUMBER:   92-11-06

SUBJECT HEADING:   Airworthiness Directives; British Aerospace Model BAe 146-100A, 200A, and 300A Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective on July 9, 1992.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
92-11-06 BRITISH AEROSPACE: Amendment 39-8256. Docket No. 92-NM-06-AD.
Applicability: British Aerospace Model BAe 146-100A, 200A, and 300A series airplanes, certificated in any category.

Compliance: Required as indicated, unless accomplished previously.

To prevent the generation of incorrect air speed and altitude information, accomplish the following:

(a) For British Aerospace Model BAe 146-200A series airplanes with Serial Numbers E2164 and subsequent; and Model BAe 146-300A series airplanes with Serial Numbers E3118, E3163, and subsequent: Within 30 days after the effective date of this AD, accomplish the actions specified in paragraphs (a)(1), (a)(2), and (a)(3) of this AD, in accordance with instructions in British Aerospace Service Bulletin SB.34-128-00950J, dated March 22, 1991:

(1) Replace existing pitot-static system hoses at specified location with shorter hoses.

(2) Check the clamp block bolts installation. If any discrepancy is detected, correct it prior to further flight.

(3) Conduct a leak test of the pitot-static system. If any discrepancy is detected, correct it prior to further flight.

(b) For British Aerospace Model BAe 146-100A, 200A, and 300A series airplanes equipped with a True Airspeed Computer No. 1 in accordance with modification HCM40159B or HCM40297G, along with a Mode "S" Transponder in accordance with modification HCM30118B or HCM40277A: Within 90 days after the effective date of this AD, accomplish the actions specified in paragraphs (b)(1) and (b)(2) of this AD, in accordance with instructions in British Aerospace Service Bulletin SB.34-131-46041A, dated June 24, 1991:

(1) Replace existing pitot-static system hoses at specified locations with shorter hoses.

(2) Conduct a leak test of the pitot-static system. If any discrepancy is detected, correct it prior to further flight.

(c) For British Aerospace Model BAe 146-100A, 200A, and 300A series airplanes equipped with a True Airspeed Computer No. 2 in accordance with modification HCM40160C or HCM40298G, along with a Mode "S" Transponder in accordance with modification HCM30118B or HCM40277A: Within 90 days after the effective date of this AD, accomplish the actions specified in paragraphs (c)(1) and (c)(2) of this AD, in accordance with instructions in British Aerospace Service Bulletin SB.34-132-46042A, dated June 24, 1991:

(1) Replace existing pitot-static system hoses at specified locations with shorter hoses.

(2) Conduct a leak test of the pitot-static system. If any discrepancy is detected, correct it prior to further flight.

(d) An alternative method of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate. The request shall be forwarded through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, Standardization Branch, ANM-113.

(e) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the airplane to a location where the requirements of this AD can be accomplished.

(f) The inspections and modifications shall be done in accordance with British Aerospace Service Bulletin SB.34-128-00950J, dated March 22, 1991; British Aerospace Service Bulletin SB.34-131-46041A, dated June 24, 1991; or British Aerospace Service Bulletin SB.34-132-46042A, dated June 24, 1991; as applicable. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies may be obtained from British Aerospace, PLC. Librarian for Service Bulletins, P.O. Box 17414, Dulles International Airport, Washington D.C. 20041-0414. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, Washington; or at the Office of the Federal Register, 1100 L Street NW., Room 8401, Washington, DC.

(g) This amendment becomes effective on July 9, 1992.

FOOTER: