AD 73-12-09

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AD Number:
73-12-09
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; ROCKWELL INTERNATIONAL Model NA-265-40, NA-265-60, NA-265-70 Airplanes
Subject:
Thrust Reverser Deployment
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
07/29/1975
Make:
Sabreliner Corporation
Model:
NA-265-40 | NA-265-60 | NA-265-70
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Superseded AD: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Superseded By: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: 73-12-09
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-2271

AD NUMBER:   73-12-09

SUBJECT HEADING:   Airworthiness Directives; ROCKWELL INTERNATIONAL Model NA-265-40, NA-265-60, NA-265-70 Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective July 29, 1975.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   73-12-09 ROCKWELL INTERNATIONAL: Amendment 39-1664 is further amended by Amendment 39-2271. Applies to all Model NA-265-40 airplanes, Serial Numbers prior to 282-138 and equipped with thrust reversers; all Model NA-265-60 airplanes, Serial Numbers prior to 306-81, all Model NA-265-70 airplanes, Serial Numbers 370-2 through 370-6, and 370-8 and 370-9.

Compliance required as indicated.

To prevent unwanted thrust reverser deployment, accomplish (a), or (b), or (c), or (d), below, prior to further flight, except as provided below.

(a) (1) Stow and lock the thrust reversers in the forward thrust position and install a placard in plain view of the pilot indicating that the thrust reversers are deactivated. The thrust reversers must be locked in the stowed position in accordance with North American Rockwell Report NA-62-1223, page 68E, for Model NA-265-40; Report NA-66-1030, Operational Supplement No. 8, for Model NA-265-60; and Report NA-69-639, Section 1-47, for Model NA-265-70.

(2) Pull and collar, for all affected models, the following electrical circuit breakers located on the copilot side console: "CONTROL LH"; "CONTROL RH"; "LATCH LH"; "LATCH RH"; "EMERG STOW"; and "IND LTS".

(b) (1) Incorporate the revisions, dated May 16, 1973, to the FAA-approved NA-265 series Sabreliner Airplane Flight Manuals, CERTIFICATE LIMITATIONS, EMERGENCY PROCEDURES and NORMAL PROCEDURES sections, pertaining to thrust reverser operation. References: NA-62-1300; NA-72-25; NA-66-1030; and NA-69-422.

(2) Prior to the first flight of each day, perform the pre-flight operational check in accordance with North American Rockwell Service Bulletin 73-10, Addendum A, dated May 16, 1973, or later FAA-approved revisions of the Sabreliner 40/60 series Maintenance Manual TR-78-9; or -70 series Maintenance Manual TR-78-3. Install a placard in plain view of the pilot to require performance of this pre-flight thrust reverser system check.

(3) Perform the rigging inspections of the thrust reverser in accordance with Service Bulletin 73-10 dated May 16, 1973, or later FAA-approved revisions.

(4) Perform a one-time "Thrust Reverser 100-hour Inspection" per Addendum B, Service Bulletin 73-10, dated May 16, 1973 or later FAA-approved revisions.

(5) Within three hundred hours additional time in service, perform a one- time "Operational Check of Thrust Reverser Relays" per Addendum C, Service Bulletin 73-10, dated May 16, 1973, or later FAA-approved revisions.

(6) Thereafter, the inspections specified in paragraphs (b) (3), (4), and (5) above, may be performed as normal maintenance procedures in accordance with the North American Sabreliner Maintenance Manuals applicable to the model.

(7) Accomplish the wiring change to the dimming circuit in accordance with North American Service Bulletin 73-6, dated May 16, 1973, or later FAA-approved revisions.

(8) Aircraft which cannot meet or otherwise comply with any of the inspection or installation requirements of paragraph (b) of this AD, can be operated only per paragraphs (a) or (c) of this AD.

(c) (1) Install a strengthened stang bracket in accordance with FAA Approved Sabreliner Division Service Bulletin 74-11, dated June 20, 1975, or later FAA-approved revisions; and

(2) Install an automatic Stow System in accordance with Sabreliner Division FAA Approved Service Bulletin 74-8 dated July 14, 1975, or later FAA-approved revisions; and

(3) Incorporate in the Airplane Flight Manual the appropriate revisions shown in Sabreliner Division Service Bulletin (2), above.

NOTE: For the purpose of compliance with (c), above, the automatic stow system must be operational.

(d) Equivalent inspections, maintenance procedures, and installations may be approved by the Chief, Aircraft Engineering Division, FAA Western Region.

AD 73-12-09 , Amendment 39-1664 supersedes A AD 73-10-04.

Amendment 39-1664 was effective June 16, 1973 for all persons except those to whom it was made effective immediately by airmail letter dated May 17, 1973, which contained this amendment.

This amendment becomes effective July 29, 1975.

FOOTER: