TextOCR
This text is OCR from a scan. OCR can misread letters and numbers.
Query with SQL
duckdb -csv -c "SELECT p.page, p.text_source, p.text, f.rights_holder, f.license FROM 'https://openairdocs.org/data/latest/service_document_file_page.parquet' p JOIN 'https://openairdocs.org/data/latest/service_document_file.parquet' f USING (file_sha256) WHERE p.file_sha256 = '880d60c1908ffb639b3db209d88e8ed2548ba2754d6dd03b71b9f128efe2fc32' ORDER BY p.page"
Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
SELECT p.page, p.text_source, p.text, f.rights_holder, f.license FROM 'https://openairdocs.org/data/latest/service_document_file_page.parquet' p JOIN 'https://openairdocs.org/data/latest/service_document_file.parquet' f USING (file_sha256) WHERE p.file_sha256 = '880d60c1908ffb639b3db209d88e8ed2548ba2754d6dd03b71b9f128efe2fc32' ORDER BY p.page
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
BAe JETSTREAM Series 4100
SERVICE BULLETIN
(3) Inspection Procedure
(a) Place the probe on the surface of the component within the area of inspection and scan the hatched area shown in figure 2.
(b) Monitor the amplitude of the backwall echo at 8 on the timebase, and also look for possible fault indications at approximately 6 on the timebase.
(c) Ensure that the upper and lower guide plates on the forward and aft door frames are inspected.
NOTE: As the probe is scanned across the cross drilled holes the backwall echo will reduce below the alarm trigger threshold. This is not a fault indication.
G. Interpretation
(1) A split in the component caused by exfoliation corrosion is likely to occur flush with the upper surface of its base. This will cause a decrease in the backwall echo. It may also produce a fauit signal at approximately 6 on the timebase.
H. Accept / Reject Criteria (Ref. Fig. 3)
(1) The following shall be considered as evidence of exfoliation corrosion:
(a) Any decrease in the backwall echo below 60 per cent full screen height.
(b) Any fault signal above 10 per cent full screen height.
(c) If evidence of exfoliation corrosion is found in steps (a) or (b). Then the component being inspected is to be replaced with a serviceable component before next flight.
Examination Standard
(1) All corrosion and discontinuity indications are to be recorded in the relevant aircraft documentation and the appropriate BAE SYSTEMS approved repair / rectification taken.
NOTE: The word discontinuity is a generic term for faults such as cracks, corrosion and mechanical damage.
Reporting Procedure
(1) Report all cracks / discontinuities to:
Fleet Data Department (Building 37)
BAE SYSTEMS Regional Aircraft Prestwick International Airport Ayrshire Scotland KA9 2RW.
ORIGINAL ISSUE: SEP 15/09 J41-52-064 PAGE 11 Printed in the U.K.
BAe JETSTREAM Series 4100
SERVICE BULLETIN
(2) Also send the following information:
(a) Aircraft construction number (D) Aircraft registration
(c) Flying hours and number of landings
(d) SB number
(e) Location / area or length of the crack or discontinuity / per cent FSH.
K. Additional Information
(1) Ensure all test equipment is removed from the aircraft on completion of work.
J41-52-064 ORIGINAL ISSUE: SEP 15/09 PAGE 12 Printed in the U.K.
BAe JETSTREAM Series 4100
SERVICE BULLETIN REMOVE
STAINLESS STEEL GUIDE
UPPER GUIDE PLATE REMOVE
STAINLESS STEEL GUIDE
LOWER GUIDE PLATE
FLOOR LEVEL
GUIDE PLATES FITTED TO AFT DOOR FRAME SHOWN
GUIDE PLATES FITTED TO FORWARD DOOR FRAME ARE SIMILAR Location of Passenger Door Upper and Lower Guide Plates Figure 1 ORIGINAL ISSUE: SEP 15/09 J41-52-064 PAGE 13 Printed in the U.K.
BAe JETSTREAM Series 4100
SERVICE BULLETIN
POSITION PROBE AT THIS POINT
TO SET BACKWALL ECHO
CROSS DRILLED HOLES
UPPER GUIDE PLATE
CROSS DRILLED HOLES
POSITION PROBE AT THIS POINT
TO SET BACKWALL ECHO
CROSS DRILLED HOLES
- CROSS DRILLED HOLES
LOWER GUIDE PLATE SCAN HATCHED AREA
GUIDE PLATES FITTED TO AFT DOOR FRAME SHOWN
GUIDE PLATES FITTED TO FORWARD DOOR FRAME ARE SIMILAR Scan Areas - Upper and Lower Guide Plates Figure 2 J41-52-064 ORIGINAL ISSUE: SEP 15/09 PAGE 14 Printed in the U.K.
BAe JETSTREAM Series 4100
SERVICE BULLETIN
TYPICAL
EXFOLIATION BACKWALL ECHO
CORROSION ECHO 100 60 GATE 2 THRESHOLD SET AT 60 PER CENT
FULL SCREEN HEIGHT GATE 1 THRESHOLD SET AT 10 PER CENT
FULL SCREEN HEIGHT
0.43" (11 mm)
0.31" (8mm)
0.35" (9mm) Krautkramer 5MHz, 0 degree contact probe 0.39" (10mm) Part number K5K from GE Inspection Typical Screen Display and Ultrasonic Probe Figure 3 ORIGINAL ISSUE: SEP 15/09 J41-52-064 PAGE 15 Printed in the U.K.
No text on this page: it may be a figure. Open the PDF to see it.
BAE SYSTEMS
ACCOMPLISHMENT REPORT SERVICE BULLETIN NUMBER J41-52-064 TITLE: DOORS - INTRODUCTION OF ULTRASONIC INSPECTION OF THE UPPER AND
LOWER PASSENGER/CREW DOOR PIN GUIDES TO: THE PUBLICATIONS CONTROL TEAM,
AIRCRAFT MAINTENANCE & PUBLICATION SERVICES,
BAE SYSTEMS,
PRESTWICK INTERNATIONAL AIRPORT, AYRSHIRE, KA9 2RW, SCOTLAND.
Telephone: (01292) 675207 Fax: (01292) 675704 E-mail: RAPublications@baesystems.com
PLEASE BE ADVISED THAT THE ABOVE SERVICE BULLETIN HAS BEEN EMBODIED ON AIRCRAFT CONSTRUCTORS NUMBER(S):
WE REQUEST THE APPROPRIATE REVISIONS TO APPLICABLE MANUALS.
NAME: ..
SIGNED:
COMPANY:
DATE: .
SERVICE BULLETIN COMMENTS/FEEDBACK Please report any non-technical comments or inaccuracies regarding this service bulletin to the above address.
BAE SYSTEMS (Operations) Limited.
Printed in the U.K
No text on this page: it may be a figure. Open the PDF to see it.