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 = 'd1c7841abe904d5baae3186c608dfe3a797a1cd4ba3191535297c62b6ebbca0e' 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 = 'd1c7841abe904d5baae3186c608dfe3a797a1cd4ba3191535297c62b6ebbca0e' 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 SYSTEMS (Operations) Limited, Prestwick International Airport, Ayrshire, KA9 2RW, Scotland.
INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT TITLE: FUSELAGE - CENTRE FUSELAGE - TO INSPECT FORWARD RIB O LONGERON
1.Planning information A.Effectivity
(1) Aircraft Aircraft affected by this inspection are defined below:- BAe 146 Series 301.
AlL BAe 146 100, 200, 300 Series.
ALL AVRO 146-RJ70, RJ85, RJ100 Series.
B. Reason An operator recently reported, during routine maintenance, cracking on the radius of the Rib 0 Forward Longeron at Frame 26.
The cracking initiated close to a local blend in the radius.
Failure of a Rib O Forward Longeron could result in loss of continuity across the wing box, causing re-distribution of loading into the fuselage skin or the adjacent Rib 1 longerons. Such re-distribution if not detected and corrected, could result in failure of the fuselage skin, leading to rapid decompression and potential loss of the aircraft.
C.Description This Inspection Service Bulletin (ISB) requires a one-off visual and high frequency eddy current inspection of the radius of the Rib O Forward Longeron at Frame 26.
D. Compliance The technical content of this ISB is the subject of UK CAA Airworthiness Directive consultation.
Accomplish the instructions in para.2.C within 6 months of publication of this ISB.
Date: 25-AUG-2023 ISB.53-249 Revision: Initial issue Page 1 of 20 Printed in England
BAE SYSTEMS
INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT E. ApprovaL The technical content of this document is approved under the authority of the DOA Ref.UK.21J.0047.
The technical content of this document is approved under the authority of the UK CAA design organisation approval reference:
AD/1852/05.
F. Manpower To inspect as defined in para.2.C - 2.0 man-hours.
This man-hour estimate does not include time for gaining access to, or cleaning, the inspection area, paint removal and paint re-instatement.
G.Materials - cost and availability None.
H.Tooling 10x Magnifier High Frequency Eddy Current inspection equipment.
Inspection light Metallic straight edge (minimum 6 in. (152.4mm.)) Mirror Non-metallic scraper.
I.Weight and balance Not applicable.
J.References Aircraft Maintenance Manual, Chapters 06-40-00, 20-10-10, 20-10-11, 20-10-12, 20-20-00.
Test Instrument manufacturer's handbook.
Structural Repair Manual, Chapter 51-23-00.
Non-Destructive Testing Manual, Part 1, 20-00-00, Part 6, 20-00-00, 20-06-00.
K.Publications affected Not applicable.
Date: 25-AUG-2023 ISB.53-249 Revision: Initial issue Page 2 of 20 Printed in England
BAE SYSTEMS
INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT L.Electrical load data Not applicable.
M.Software Accomplishment Summary Not applicable.
N.Aircraft Noise Levels Not applicable.
Date: 25-AUG-2023 ISB.53-249 Revision: Initial issue Page 3 of 20 Printed in England
BAE SYSTEMS BAe 146 SERIES/AUR SERVE SERES AIRCRAFT This Page Is Intentionally Left Blank.
Date: 25-AUG-2023 Revision: Initial issue page 4 of 2l Printed in England
BAE SYSTEMS
INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT
2.Accomplishment instructions A. General WARNING: WHENEVER ANY PART OF THE MAIN OR ASSOCIATED CONTROL SYSTEM
IS DISMANTLED, ADJUSTED, REPAIRED OR RENEWED, THAT PART OF
THE SYSTEM WHICH HAS BEEN DISTURBED SHALL BE
A SECOND INDEPENDENT INSPECTION FOR SECURITY OF LOCKING
DEVICES, FULL AND FREE MOVEMENT, DIRECTION AND TENSION CHECKS.
ACCEPTABLE MEANS OF COMPLIANCE M.A. 402 (a) TO EASA PART M, OR TO AN EQUIVALENT NATIONAL STANDARD.
(1) The following abbreviations are used within this document:- AMM - Aircraft Maintenance Manual jaw - in accordance with ISB - Inspection Service Bulletin LH - Left Hand RH - Right Hand SRM - Structural Repair Manual.
NTM - Non-Destructive Testing Manual.
(2) Observe all WARNINGS and CAUTIONS appearing in the AMM referred to in this ISB.
(3) Restore protective treatment as required, using epoxy primer (Material No.16-580) and polyurethane top coat grey (Material No. 16-584).
B.Preparation
(1) Refer to AMM 06-40-00. Remove access panels 281AT, 281AZ, 281BT, 281CT, 282AZ, 282BT, 282CT.
(2) Gain access to the Rib O Forward Longeron.
(3) Remove sealant and clean the LH and RH edge of the Longeron, to allow the straight edge to be located (Ref. Drawing 1).
- Refer to AMM 20-20-00. Use an approved cleaner and a non-metallic scraper.
(4) Remove primer and paint from the radius edge and flanges of the LH and RH sides of Rib O Forward Longeron iaw AMM 20-10-10 (Ref. Drawing 1).
Date: 25-AUG-2023 ISB.53-249 Revision: Initial issue Page 5 of 20 Printed in England
BAE SYSTEMS
INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT C. Inspection
(1) Refer to Drawing 1. Perform a detailed inspection of the radius edge and flanges of the LH and RH sides of Rib O Forward Longeron for evidence of rough edges, nicks, or visible cracking.
- Use 10x magnification and a strong light and mirror as required.
(2) Refer to Drawing 1. Inspect for evidence of blending or undercutting in the radius and flanges of the LH and RH sides of Rib O Forward Longeron.
- Use a metallic straight edge (minimum 6 inches (152.4 mm)) NOTE: Blending or undercutting is present if a gap is visible between the straight edge and the edge of the longeron.
(3) Refer to Appendix 2 inspection of the radius edge. Perform a high frequency eddy current
(4) Before further flight, report any cracking, surface defects, blending or undercutting found to BAE Systems Repair Design Office (raengliaisonabaesystems.com) and await further instruction. Use a copy of the Inspection Report form in Appendix 1.
Date: 25-AUG-2023 ISB.53-249 Revision: Initial issue Page 6 of 20 Printed in England
BAE SYSTEMS
INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT FRAME 29
REAR SPAR (REF) FRAME 26
FRONT SPAR (REF) RIB 0 FORWARD
LONGERON FWD FRAME 24 FRAME 25 FRAME TYPICAL 26 FWD
CAREFULLY PLACE THE STRAIGHT EDGE ALONG THE EDGE STRAIGHT EDGE RADIUS OF THE LONGERON TOWARDS THE RADIUS.
MINIMUM LENGTH
6.0 in. (152.4 mm) DO NOT PUSH THE END OF THE STRAIGHT EDGE INTO THE RADIUS.
FLANGE
IF THERE IS EVIDENCE OF BLENDING OR UNDERCUTTING ALONG THE EDGE THEN REPAIR ACTION MAY BE REQUIRED.
INSPECT THE RADIUS ON BOTH SIDES OF THE LONGERON.
VIEW ON ARROW 'C'
POSSIBLE BLEND
OR UNDERCUT
STRIP PAINT AND PRIMER IN THIS
AREA ON THE FLANGE AND RADIUS EDGE ON BOTH SIDES OF THE LONGERON N5324901
INSPECTION OF LH AND RH RIB O FORWARD LONGERON DRAWING 1.
Date: 25-AUG-2023 ISB.53-249 Revision: Initial issue Page 7 of 20 Printed in England
BAE SYSTEMS
INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT D.Test Not applicable.
E.Close up
(1) Make sure work area is clean, and clear of tools and miscellaneous equipment.
(2) Refer to AMM 20-10-11. Restore protective treatment as required, using coloured chemical conversion coating, Material No.13-002 or Material No.13-002A and epoxy primer (Material No.16-580).
(3) Refer to AMM 20-10-12. Restore paint finish as required, using polyurethane top coat grey (Material No.16-584).
(4) Refer to SRM 51-23-00. Reinstate sealant (Material No.09-002A) in area of inspection as required.
(5) Refer to AMM 06-40-00. Install access panels 281AT, 281AZ, 281BT, 281CT, 282AZ, 282BT, 282CT.
F.Documentation
(1) Record, in aircraft technical records, embodiment of this SB.
G.Terminating action
(1) None.
Date: 25-AUG-2023 ISB.53-249 Revision: Initial issue Page 8 of 20 Printed in England
BAE SYSTEMS
INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT
3. Material information A. Materials
(1) Materials required (Operator supplied).
Table 1.
DESCRIPTION MATERIAL NUMBER QTY.
(REF.AMM 20-20-00 ) Coloured chemical conversion coating 13-002 or 13-002A A/R epoxy primer 16-580 A/R polyurethane top coat grey 16-584 A/R PR1422B-2 Sealant 09-002 AYR NOTE: A/R denotes as required.
Date: 25-AUG-2023 ISB.53-249 Revision: Initial issue Page 9 of 20 Printed in England
BAE SYSTEMS BAe 146 SERIES/AUR SERVE SERES AIRCRAFT This Page Is Intentionally Left Blank.
Date: 25-AUG-2023 Revision: Initial issue Printed in England
BAE SYSTEMS
INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT APPENDIX 1
1.INSPECTION REPORT A. Complete and return this form as detailed OPERATOR:
AIRCRAFT REGISTRATION:
CONSTRUCTOR'S NUMBER:
FLIGHT HOURS:
LANDINGS:
DATE INSPECTION PERFORMED:
FINDINGS:
To: Customer Technical Support (Building 37), BAE SYSTEMS (Operations) Limited, Prestwick International Airport, Ayrshire, KA9 2RW, SCOTLAND.
e-mail raengliaison@baesystems.com Date: 25-AUG-2023 ISB.53-249 Revision: Initial issue Page 11 of 20 Printed in England
BAE SYSTEMS BAe 146 SERIES/AUR SERVE SERES AIRCRAFT This Page Is Intentionally Left Blank.
Date: 25-AUG-2023 page 1zo20 Revision: Initial issue Printed in England