N489WN
Service difficulty reports · 401
Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first.
Query with SQL
duckdb -csv -c "SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet' WHERE n_number = 'N489WN' AND registry_match = 'registration' ORDER BY difficulty_date DESC"
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 sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet' WHERE n_number = 'N489WN' AND registry_match = 'registration' ORDER BY difficulty_date DESC
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.
SDR SWAA2021071594230Light · inoperativeR/H OVER WING EXIT AFT LIGHT IS IN-OP. ; / [01] RELAMPED AND PERFORMED GOOD TEST R/H OVER WING EXIT LIGHT IAW AMM 33-51-01-960-801.; [02] VERIFIED - RELAMPED AND PERFORMED GOOD TEST R/H OVER WING EXIT LIGHT IAW AMM 33-51-01-960-801.SDR SWAA2021071587032Intercostal · crackedCRACKED INTERCOSTAL COMMON TO FLOOR PANEL 241AF BS 380-400 BL 0 WL 208 ; / [01] DAMAGE EVALUATION; NO ENTRIES FOUND ON SRM FOR CRACKS ON INTERCOSTAL BS380-400 BL0 WL208 PART TO BE REPLACED I.A.W SRM 51-10-02-0G-0 PAR 9.C; [02] REMOVED INTERCOSTAL BS 380-400; WSDR SWAA2021071587033Intercostal · crackedCRACKED INTERCOSTAL COMMON TO FLOOR PANEL 231KF BS 500D-520 BL 0 WL 208 ; / [01] DAMAGE EVALUATION; NO ENTRIES FOUND ON SRM FOR CRACKS ON INTERCOSTAL BS500D-BS520 BL0 WL208 PART TO BE REPLACED I.A.W SRM 51-10-02-0G-0 PAR 9.C; [02] REMOVED INTERCOSTAL BS500D-BSSDR SWAA2021071984817Seat Track · corrodedCORROSION ON TOP AND IN WELL OF SEAT TRACK CROWN BS 727E-768 LBL 25 WL 208. ; / [01] REMOVED CORROSION ON TOP AND IN WELL OF SEAT TRACK CROWN STA 727E-768; LBL 25; WL 208. MAX MATERIAL REMOVED WAS .026' .5' BY 1' ON TOP AND .012' 1' BY 1' IN WELL. OUT OF LIMITSDR SWAA2021071985222Crease Beam · corrodedCORROSION ON CREASE BEAM INNER CHORD STA 639-644; RBL 65; WL 208; UPPER SURFACE. ; / [01] REMOVED CORROSION ON CREASE BEAM INNER CHORD STA 639-644; RBL 65; WL 208; UPPER SURFACE. DIMENSIONS OF DAMAGE REMOVAL AREA FOUND TO BE 5.5' X 1' WITH A MAX DEPTH OF 0.015SDR SWAA2021071985218Floorbeam · crackedCRACKED BREAK PANEL BS 540 LBL 1 WL 208. ; / [01] REMOVED CRACKED BREAK PANEL ASSY BS 540; BL 0 - LBL 25; WL 208 PER SRM 51-40-02-0G-0.; [02] LOCATED AND DRILLED NEW BREAK PANEL ASSY BS 540; BL 0 - LBL 25; WL 208 PER SRM 51-40-05-0G-0. OK TO INSTALL NEW BREAK SDR SWAA2021071985221Floorbeam · crackedCRACKED BREAK PANEL BS 540 RBL 1 WL 208. ; / [01] REMOVED CRACKED BREAK PANEL ASSY BS 540; BL 0 - RBL 25; WL 208 PER SRM 51-40-02-0G-0.; [02] LOCATED AND DRILLED NEW BREAK PANEL ASSY BS 540; BL 0 - RBL 25; WL 208 PER SRM 51-40-05-0G-0. OK TO INSTALL NEW BREAK SDR SWAA2021071984814Seat Track · corrodedCORROSION ON TOP AND IN WELL OF SEAT TRACK CROWN BS 727B-727D+12 RBL 25 WL 208. ; / [01] SEAT TRACK STA 727B-887 RBL 25; WL 208 IS OUT OF LIMITS AND WILL BE REPLACED ON CARD# TTG8Q005GBFW.; [02] VERIFIED SEAT TRACK STA 727B-887 RBL 25; WL 208 IS OUT OF LIMITS SDR SWAA2021071984815Seat Track · corrodedCORROSION ON TOP AND IN WELL OF SEAT TRACK CROWN BS 727E-747 RBL 25 WL 208. ; / [01] SEAT TRACK STA 727B-887 RBL 25; WL 208 IS OUT OF LIMITS AND WILL BE REPLACED ON CARD# TTG8Q005GBFW; [02] VERIFIED SEAT TRACK STA 727B-887 RBL 25; WL 208 IS OUT OF LIMITS AND WSDR SWAA2021071984816Seat Track · corrodedCORROSION ON TOP AND IN WELL OF SEAT TRACK CROWN BS 727B-727E LBL 25 WL 208. ; / [01] SEAT TRACK STA 727B-887 LBL 25; WL 208 IS OUT OF LIMITS AND WILL BE REPLACED ON CARD# TTG8Q005GA9K; [02] VERIFIED SEAT TRACK STA 727B-887 LBL 25; WL 208 IS OUT OF LIMITS AND SDR SWAA2021071984818Seat Track · corrodedCORROSION ON TOP AND IN WELL OF SEAT TRACK CROWN BS 778-827 LBL 25 WL 208. ; / [01] SEAT TRACK STA 727B-887 LBL 25; WL 208 IS OUT OF LIMITS AND WILL BE REPLACED ON CARD# TTG8Q005GA9K; [02] VERIFIED SEAT TRACK STA 727B-887 LBL 25; WL 208 IS OUT OF LIMITS AND WISDR SWAA2021071984819Seat Track · corrodedCORROSION ON TOP AND IN WELL OF SEAT TRACK CROWN BS 844-887 LBL 25 WL 208. ; / [01] SEAT TRACK STA 727B-887 LBL 25; WL 208 IS OUT OF LIMITS AND WILL BE REPLACED ON CARD# TTG8Q005GA9K; [02] VERIFIED SEAT TRACK STA 727B-887 LBL 25; WL 208 IS OUT OF LIMITS AND WISDR SWAA2021071684825Seat Track · corrodedCORROSION ON TOP AND IN WELL OF SEAT TRACK CROWN BS 828-872 RBL 25 WL 208. ; / [01] SEAT TRACK STA 727B-887 IS OUT OF LIMITS AND WILL BE REPLACED ON CARD# TTG8Q005GBFW.; [02] SEAT TRACK STA 727B-887 RBL 25; WL 208 IS OUT OF LIMITS AND WILL BE REPLACED ON CARD#SDR SWAA2021071684824Seat Track · corrodedCORROSION ON TOP AND IN WELL OF SEAT TRACK CROWN BS 766-811 RBL 25 WL 208. ; / [01] REMOVED CORROSION ON TOP AND IN WELL OF SEAT TRACK CROWN STA 766-811; RBL 25; WL 208. MAX MATERIAL REMOVED WAS .025' .5' BY 1' ON TOP AND .009' 1' BY 1' IN WELL. OUT OF LIMITS SDR SWAA2021071984791Stiffener · crackedLT HORIZ. STAB RIB #5 (STAB STA 129.3) #4 VERT STIFFENER IS CRACKED. ; / [01] REMOVED DAMAGE (CRACK) ON STAB RIB (STAB STA 129.3) #4 VERT STIFFENER; L=2.30' X W=0.60' IAW SRM 55-10-09-2R-5. REQUIES NDT TO VERIFIY CRACK FREE.; [02] VERIFIED REMOVED DAMAGE (CRACSDR SWAA2021071984783Seat Track · corrodedCORROSION ON TOP AND IN WELL OF SEAT TRACK CROWN BS 496-500+11 LBL 25 WL 208. ; / [01] SEAT TRACK 496-500+11; LBL 25; WL 208 WENT OUT OF LIMITS AND WILL BE REPLACED ON JOB CARD TTG8Q005G1TV.; [02] SEAT TRACK 496-500+11; LBL 25; WL 208 WENT OUT OF LIMITS AND WISDR SWAA2021071984784Seat Track · corrodedCORROSION ON TOP AND IN WELL OF SEAT TRACK CROWN BS 500A+6-500B+7 LBL 25 WL 208. ; / [01] SEAT TRACK 500A+6-500B+7; LBL 25; WL 208 WENT OUT OF LIMITS AND WILL BE REPLACED ON JOB CARD TTG8Q005G1TV.; [02] SEAT TRACK 496-500+11; LBL 25; WL 208 WENT OUT OF LIMITS SDR SWAA2021071984785Seat Track · corrodedCORROSION ON TOP AND IN WELL OF SEAT TRACK CROWN BS 500B+12-500C+13 LBL 25 WL 208. ; / [01] SEAT TRACK 480-520; LBL 25; WL 208 WENT OUT OF LIMITS AND WILL BE REPLACED ON JOB CARD TTG8Q005G1TV.; [02] SEAT TRACK 496-500+11; LBL 25; WL 208 WENT OUT OF LIMITS AND SDR SWAA2021071984786Seat Track · corrodedCORROSION IN WELL OF SEAT TRACK CROWN BS 496-500+5 LBL 45 WL 208. ; / [01] SEAT TRACK 480-520; LBL 25; WL 208 WENT OUT OF LIMITS AND WILL BE REPLACED ON JOB CARD TTG8Q005G1TV.; [02] SEAT TRACK 480-520; LBL 45; WL 208 WENT OUT OF LIMITS AND WILL BE REPLACED ON SDR SWAA2021071984787Seat Track · corrodedCORROSION ON TOP AND IN WELL OF SEAT TRACK CROWN BS 500A+7-500A+18 LBL 45 WL 208. ; / [01] SEAT TRACK 480-520; LBL 25; WL 208 WENT OUT OF LIMITS AND WILL BE REPLACED ON JOB CARD TTG8Q005G1TV.; [02] SEAT TRACK 480-520; LBL 45; WL 208 WENT OUT OF LIMITS AND WILLSDR SWAA2021071984788Seat Track · corrodedCORROSION ON TOP AND IN WELL OF SEAT TRACK CROWN BS 500B+16-500C+10 LBL 45 WL 208. ; / [01] SEAT TRACK 480-520; LBL 25; WL 208 WENT OUT OF LIMITS AND WILL BE REPLACED ON JOB CARD TTG8Q005G1TV.; [02] SEAT TRACK 480-520; LBL 45; WL 208 WENT OUT OF LIMITS AND WILSDR SWAA2021071984799Seat Track · corrodedCORROSION ON TOP AND IN WELL OF SEAT TRACK CROWN BS 625-643 LBL 25 WL 208. ; / [01] SEAT TRACK 540-727B; LBL 25; WL 208 WAS REPLACED ON CUSTOMER CARD# TTG8Q005G35V; [02] VERIFIED DISCREPANCY WAS ADDRESSED WITH SEAT TRACK R AND R ON TTG8Q005G35VSDR SWAA2021071984800Seat Track · corrodedCORROSION ON TOP AND IN WELL OF SEAT TRACK CROWN BS 654-710 LBL 25 WL 208. ; / [01] SEAT TRACK 540-727B; LBL 25; WL 208 WAS REPLACED ON CUSTOMER CARD# TTG8Q005G35V; [02] VERIFIED DISCREPANCY WAS ADDRESSED WITH SEAT TRACK R AND R ON TTG8Q005G35VSDR SWAA2021071984808Seat Track · corrodedCORROSION ON TOP AND IN WELL OF SEAT TRACK CROWN BS 724-727B LBL 25 WL 208. ; / [01] SEAT TRACK 540-727B; LBL 25; WL 208 WAS REPLACED ON CUSTOMER CARD# TTG8Q005G35V; [02] VERIFIED DISCREPANCY WAS ADDRESSED WITH SEAT TRACK R AND R ON TTG8Q005G35VSDR SWAA2021071684792Seat Track · corrodedCORROSION ON TOP AND IN WELL OF SEAT TRACK CROWN BS 500D+7-520 LBL 25 WL 208. ; / [01] REMOVED CORROSION ON TOP AND IN WELL OF SEAT TRACK CROWN STA 500D+7-520; LBL 25; WL 208. MAX MATERIAL REMOVED WAS .034' .5' BY 1' ON TOP AND .007' 1' BY 1' IN WELL. OUT OF LSDR SWAA2021071684793Seat Track · corrodedCORROSION ON TOP AND IN WELL OF SEAT TRACK CROWN BS 500D+8-520 LBL 45 WL 208. ; / [01] REMOVED CORROSION ON TOP AND IN WELL OF SEAT TRACK CROWN STA 500D+8-520; LBL 45; WL 208. MAX MATERIAL REMOVED WAS .033' .5' BY 1' ON TOP AND .005' 1' BY 1' IN WELL. OUT OF LSDR SWAA2021071684807Seat Track · corrodedCORROSION ON TOP AND IN WELL OF SEAT TRACK CROWN BS 540-620 LBL 25 WL 208. ; / [01] REMOVED CORROSION ON TOP AND IN WELL OF SEAT TRACK CROWN STA 540-620; LBL 25; WL 208. MAX MATERIAL REMOVED ON TOP WAS .025' .5 BY 1'; .018' 1' BY 1' IN WELL. OUT OF LIMITS PER SDR SWAA2021071683225Seat Track · corrodedCORROSION ON CABIN SEAT TRACK; ON CROWN AND IN WELL; BS 445-460; RBL 25; WL 208 ; / [01] REMOVED CORROSION ON CABIN SEAT TRACK ON CROWN AND IN WELL; STA 445-460; RBL 25; WL 208. MAX MATERIAL REMOVED WAS .026' .5' BY 1' ON TOP; .008' 1' BY 1'IN WELL. OUT OF LIMSDR SWAA2021071982489Frame · crackedFRAME CRACKED ABOVE FED AT BS 312; LBL 32.75; WL 282.5 ; / [01] HFEC INSP CRACK IAW 737 NDTM PART 6 51-00-00 PROCEDURE 23. VERIFIED CRACK END; AREA MARKED . EQUIP ID#: IS000450 S/N: N500D000M120071; [02] CRACK MEASURED 0.08'; REMOVED DAMAGE PER SRM 53-10-07-2RSDR SWAA2021071982496Baffle · damagedFCB L/H FLOOR TO SIDEWALL BAFFLE HAS OVERSIZED HOLES COMMON TO UPPER HORIZONTAL FLANGE BETWEEN BS500 & BS500A LBL25 WL156 ; / [01] PART HAS NO ALLOWABLE DAMAGE LIMIT ON SRM; REPAIR BY REPLACEMENT PER SRM 51-10-02-0G-0<BR><BR>REMOVED FCB BAFFLE BS 500-500A LBL SDR SWAA2021071982495Baffle · damagedFCB L/H FLOOR TO SIDEWALL BAFFLE HAS OVERSIZED HOLES COMMON TO UPPER HORIZONTAL FLANGE BETWEEN BS400 & BS420 LBL25 WL156 ; / [01] FOUND FCB L/H FLOOR TO SIDEWALL BAFFLE TO BE OUT OF LIMITS; REPLACEMENT OF PART REQUIRED IAW SRM 51-10-02-0G-0. REMOVED FCB L/H FLSDR SWAA2021071982492Baffle · damagedFCB R/H FLOOR TO SIDEWALL BAFFLE HAS OVERSIZED HOLES COMMON TO UPPER HORIZONTAL FLANGE BETWEEN BS500A & BS500B; RBL25; WL156 ; / [01] PART HAS NO ALLOWABLE DAMAGE LIMIT ON SRM; REPAIR BY REPLACEMENT PER SRM 51-10-02-0G-0<BR><BR>REMOVED FCB BAFFLE BS 500A-500B SDR SWAA2021071982491Baffle · damagedFCB R/H FLOOR TO SIDEWALL BAFFLE HAS OVERSIZED HOLES COMMON TO UPPER HORIZONTAL FLANGE BETWEEN BS500B & BS500C; RBL25; WL156 ; / [01] PART HAS NO ALLOWABLE DAMAGE LIMIT ON SRM; REPAIR BY REPLACEMENT PER SRM 51-10-02-0G-0<BR><BR>REMOVED FCB BAFFLE BS 500B-500C SDR SWAA2021071982493Angle · corrodedCORROSION ON INTERCOSTAL ANGLE BELOW SHIELD IN AFT CARGO BAY BS 767-787 RBL 22 WL 156 ; / [01] EVALUATED CORROSION ON ANGLE; FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS IN THE SRM AND REQUIRES REPLACEMENT PER SRM 51-10-02-0G-0; [02] VERIFIED CORROSION ON ANGLE;SDR SWAA2021071982479Support Angle · crackedASD PANEL 844DZ SWEEP SEAL SUPPORT ANGLE IS CRACKED. ; / [01] REMOVED DAMAGED ASD PANEL 844D SWEEP SEAL SUPPORT ANGLE PER SRM 51-40-02-0G-0.; [02] O.S.S. REQUEST SUBMITTED FOR FORMING; HT; AND ANODIZING OF REPLACEMENT ASD PANEL 844D SWEEP SEAL SUPPORT ANGLE (PSDR SWAA2021071982482Isolator · brokenAFT SERVICE DOOR BROKEN ISOLATOR LOWER FRAME ABOVE GATE. ; / [01] REMOVED AND REPLACED AFT SERVICE DOOR ISOLATOR AT LOWER FRAME ABOVE GATE PER SRM 51-40-02-0G-0; AND BOEING DWG #147A6125 REV:D; [02] CERTIFIED INSTALLATION OF ISOLATOR ON AFT SERVICE DOOR LOWER SDR SWAA2021061481848Shield · corrodedCORROSION ON AFT SHIELD AT FWD CARGO BAY BS500+5 RBL23 WL156. EVALUATED CORROSION ON SHIELD, FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS IN SRM & REQUIRES REPLACEMENT IAW SRM 51-10-02-0G-0. REMOVED SHIELD BS 492-500A RBL 23 WL 156 IAW SRM 51-40-02-0G-0. LOCSDR SWAA2021071981784Support Angle · corrodedCORROSION ON SIDEWALL SUPPORT ANGLE AT FWD CARGO BAY BS500D S-23R TO S-25R WL157. ; / [01] EVALUATED CORROSION ON BULKHEAD SUPPORT; FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS IN THE SRM AND REQUIRES REPLACEMENT PER SRM 51-10-02-0G-0; [02] VERIFIED CORROSION ONSDR SWAA2021071981831Support · corrodedCORROSION ON FLOOR TO SIDEWALL SUPPORT BS500A - BS500D RBL23 WL156. ; / [01] EVALUATED CORROSION ON FLOOR TO SIDEWALL SUPPORT FOUND 0.020 REMOVED FROM ORIG 0.040 DEEPEST LOCATION AT BS 500B+10; FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2 USING DEPTH GAUGE SDR SWAA2021071981834Doubler · corrodedCORROSION ON SKIN DOUBLER AROUND BELLY DRAIN AT AREA AFT OF ACB BS949 BL0 WL174. ; / [01] REMOVED BELLY DRAIN SKIN DOUBLER AT BS949 BL0 WL174 IAW SRM 51-40-02-0G-0; [02] CORROSION DAMAGE ON SKIN DOUBLER AROUND BELLY DRAIN AT AREA AFT OF ACB BS949 BL0 WL174 WASSDR SWAA2021071981832Support Angle · corrodedCORROSION ON AFT BULKHEAD TO FLOOR SUPPORT ANGLE AT FWD CARGO BAY BS500D LBL17 TO RBL 23 WL156. ; / [01] EVALUATED CORROSION ON BULKHEAD SUPPORT; FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS IN THE SRM AND REQUIRES REPLACEMENT PER SRM 51-10-02-0G-0; [02] CORROSISDR SWAA2021071981833Support Angle · corrodedCORROSION ON SIDEWALL SUPPORT ANGLE AT FWD CARGO BAY BS500D LBL25 WL156. ; / [01] EVALUATED CORROSION ON BULKHEAD SUPPORT; FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS IN THE SRM AND REQUIRES REPLACEMENT PER SRM 51-10-02-0G-0; [02] CORROSION ON BULKHEAD SUPPORT;SDR SWAA2021071981808Skin · corrodedCORROSION ON FUSELAGE SKIN AT AFT CARGO BAY BS727E+10 BL0 WL149. ; / [01] REMOVED DAMAGE IN ACB BS727E+10 BL0 WL149 IAW SRM 53-00-01-1A-5.[08] TRIMMED OUT DAMAGE IN ACB FUSELAGE SKIN BS727E+10 BL0 WL149 IN AN AREA OF 1.6'X 1.5' IAW SRM 51-10-02-0G-0; [09] VERISDR SWAA2021071981789Support Angle · corrodedCORROSION ON AFT BULKHEAD TO FLOOR SUPPORT ANGLE AT AFT CARGO BAY BS947 LBL8 TO RBL19 WL179. ; / [01] REMOVED ACB AFT BULKHEAD TO FLOOR SUPPORT ANGLE; BS947 LBL8 TO RBL19; WL179; IAW SRM 51-40-02-0G-0.; [02] EVALUATED CORROSION; FOUND TO BE OUT OF LIMITS DUE TSDR SWAA2021071981819Support · corrodedCORROSION ON FLOOR TO SIDEWALL SUPPORT AT AFT CARGO BAY BS727D TO 767 RBL21 WL156. ; / [01] UPDATED MEASUREMENT TABLE; [02] EVALUATED CORROSION BS 727D-767 FOUND DEEPEST MEASUREMENT AT BS 747 OF 0.020 FROM ORIG 0.040 FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-SDR SWAA2021071981821Support · corrodedCORROSION ON FLOOR TO SIDEWALL SUPPORT AT AFT CARGO BAY BS727D - BS747 LBL21 WL156. ; / [01] UPDATED MEASUREMENT TABLE; [02] EVALUATED CORROSION FROM 727D-747 DEEPEST MEASUREMENT WAS AT BS 767 FOUND 0.020 REMOVED FROM ORIG 0.040 FOUND TO BE OUT OF LIMITS PER SSDR SWAA2021071981809Skin · corrodedCORROSION ON FUSELAGE SKIN AT AFT CARGO BAY BS727E+17 BL0 WL149. ; / [01] REMOVED DAMAGE ON FUSELAGE SKIN IN ACB BS 727E+17 BL0 WL149 IAW SRM 53-00-01-1A-5; [02] REMOVED DAMAGE IN AN AREA OF 1.5'X 1.3' IAW SRM 53-00-01-1A-5; [03] VERIFIED; [04] VERIFIED REMOVESDR SWAA2021071981817Cargo Track · corrodedCORROSION ON TRACK AT AFT CARGO BAY BS727A+17 RBL13 WL156. ; / [01] EVALUATED CORROSION ON TRACK; FOUND 0.020 REMOVED FROM ORIG 0.070 IN 1'X1' AREA FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2 USING MICROMETER P/N 4566A S/N UNKNOWN. TRACK TO BE REPLACED ON SDR SWAA2021071981816Cargo Track · corrodedCORROSION ON TRACK AT AFT CARGO BAY BS727A+10 RBL13 WL156. ; / [01] EVALUATED CORROSION ON TRACK; FOUND 0.020 REMOVED FROM ORIG 0.070 IN 1'X1' AREA FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2 USING MICROMETER P/N 4566A S/N UNKNOWN; [02] VERIFIED OUT OF LIMSDR SWAA2021071981796Cargo Track · corrodedCORROSION ON TRACK AT AFT CARGO BAY BS805 RBL13 WL159. ; / [01] EVALUATED CORROSION ON TRACK; FOUND 0.020 REMOVED FROM ORIG 0.070 IN 1'X1' AREA FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2 USING MICROMETER P/N 4566A S/N UNKNOWN; [02] VERIFIED OUT OF LIMITS;
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