# Service difficulty reports: Boeing 747-211B A list on [Boeing 747-211B](https://openairdocs.org/model/boeing-747-211b.md). Newest first. General aviation reporting is voluntary. - [SDR UPS06446935](https://openairdocs.org/sdr/UPS06446935.md): Floor Support · corroded · May 13, 2006 · N521UP · Boeing 747211B · Fuselage Miscellaneous Structure > BS 2250 TO 2280 RBL80 FLOOR SUPPORT FOUND CORRODED. CORROSION BLEND OUT 0.025" BY 1.5" BY 3" EXCEED SRM LIMIT. BS 2220-2290 RT O/B AREA FLOOR SUPPORT REPLACED AND INSTALLED AS PER SRM 51-10-01 PG9 AND 51-30-02. - [SDR UPS06446924](https://openairdocs.org/sdr/UPS06446924.md): Cargo Track · corroded · May 13, 2006 · N521UP · Boeing 747211B · Fuselage, Seat/Cargo Attach Fittings > INSPECTION TYPE:C U/D BS560 RBL28 TIE DOWN TRACK FOUND CORROSION. CORROSION BLEND OUT 0.036" BY 1/2" BY 4" EXCEED SRM LIMIT. TIE DOWN TRACK REPLACED AS PER SRM 51-10-01 PG9 AND INSTALLED AS PER SRM 51-30-02 JUST AT RBL28 BTN BS540 ANI BS570. P/N BAC1520-1567- - [SDR UPS06446934](https://openairdocs.org/sdr/UPS06446934.md): Seat Track · corroded · May 12, 2006 · N521UP · Boeing 747211B · Fuselage, Seat/Cargo Attach Fittings > BS 750 TO 840 RBL 11 SEAT TRACK FLANGE FOUND CORRODED. CORROSION BLEND OUT 0.034" BY 1/2" BY 2" EXCEED SRM LIMIT. BS 750 TO BS 850 RBL11 TRACK REPAIRED AS PER SRM 53-10-05 FIG 14. - [SDR UPS06446915](https://openairdocs.org/sdr/UPS06446915.md): Cargo Track · corroded · May 11, 2006 · N521UP · Boeing 747211B · Fuselage, Seat/Cargo Attach Fittings > TIE DOWN TRACK BS480-520 LBL63-68 CORRODED. CORROSION BLEND OUT 0.030" BY 1/2" BY 3" EXCEED SRM LIMIT. TIE DOWN TRACK REPAIED AT BS480-530 LBL63-68 AS PER SRM 53-10-05 FIG4. - [SDR UPS06446913](https://openairdocs.org/sdr/UPS06446913.md): Floorbeam · corroded · May 11, 2006 · N521UP · Boeing 747211B · Fuselage Main, Floor Beam > FLOORBEAM UPPER CHORD BS 480 LBL 33-63 CORRODED. CORROSION BLEND OUT 0.034" BY 1" BY 20" EXCEED SRM LIMIT. BS 480 BL0 TO LBL78 FLOORBEAM UPPER CHORD. REPAIRED AS PER SRM 53-10-07 FIG 10. - [SDR UPS06446920](https://openairdocs.org/sdr/UPS06446920.md): Hinge Bracket · cracked · May 10, 2006 · N521UP · Boeing 747211B · Horizontal Stabilizer Structure > BS 2598 B/H STABILIZER HINGE SUPPORT FITTING AREA 1EA HOLE CORROSION CRACK AT FRAME SUPPORT (4TH LAYER FROM AFT) CRACK LENGTH 0.030". BOTH HOLE REWORKED TO 0.500" AS PER EO B747-5310-14056 HOLE CONFIRMED CRACK FREE. - [SDR UPS06446919](https://openairdocs.org/sdr/UPS06446919.md): Support Fitting · cracked · May 10, 2006 · N521UP · Boeing 747211B · Fuselage Main, Attach Fittings > BS2598 B/H STABILIZER HINGE SUPPORT FITTING AREA FOUND 1 HOLE CRACK AT FRAME SUPPORT (4TH LAYER FROM AFT) CRACK LENGTH 0.030". BOLT HOLE REWORKED TO 0.500" AS PER EO B747-5310-14056 AND HOLE CONFIRMED CRACK FREE. - [SDR UPS06446932](https://openairdocs.org/sdr/UPS06446932.md): Stiffener · cracked · May 9, 2006 · N521UP · Boeing 747211B · Fuselage Main, Structure > INSPECTION TYPE:C NWW LT SIDE PANEL BS260-280 WL 180 STIFFENER RADIUS AREA. FOUND CRACK APP 1 3/8" LONG, STIFFENER. REPLACED AS PER SRM 51-10-01 PG9 AND INSTALLED AS PER SRM 51-30-02. - [SDR UPS06446927](https://openairdocs.org/sdr/UPS06446927.md): Stiffener · cracked · May 9, 2006 · N521UP · Boeing 747211B · Fuselage Miscellaneous Structure > NWW RT SIDE PANEL BS 300-320 WL 150 STIFFENER RADIUS AREA FOUND INTERMITTENT CRACKS, CRACK LENGTH: 1/4" - 1/2". STIFFENER REPLACED AND INSTALLED AS PER SRM 51-10-01 PG 9 AND 51-30-02. - [SDR UPS06446926](https://openairdocs.org/sdr/UPS06446926.md): Stiffener · cracked · May 9, 2006 · N521UP · Boeing 747211B · Fuselage Miscellaneous Structure > NWW RT SIDE PANEL BS 280-300 WL 170 STIFFENER RADIUS AREA FOUND INTERMITTENT CRACKS, CRACK LENGTH 1/4" - 3/8". STIFFENER REPLACED AND INSTALLED AS PER SRM 51-10-01 PG 9 AND 51-30-02. - [SDR UPS06446925](https://openairdocs.org/sdr/UPS06446925.md): Stiffener · cracked · May 9, 2006 · N521UP · Boeing 747211B · Fuselage Miscellaneous Structure > NWW RT SIDE PANEL BS300-320 WL170 STIFFENER RADIUS AREA FOUND INTERMITTENT CRACKS, CRACK LENGTH 1/4-3/8. STIFFENER REPLACED AND INSTALLED AS PER SRM 51-10-01 PG 9 AND 51-30-02. - [SDR UPS06446916](https://openairdocs.org/sdr/UPS06446916.md): Seat Track · corroded · May 9, 2006 · N521UP · Boeing 747211B · Fuselage, Seat/Cargo Attach Fittings > BS 480-520 LBL46 SEAT TRACK O/B FLANGE FOUND CORROSION. CORROSION BLEND OUT 0.55" BY 1/2" BY 1.5" EXCEED SRM LIMIT. BS480-530 LBL46 SEAT TRACK REPLACED AND INSTALLED AS PER SRM 51-10-01 PG 9 AND 51-30-02. - [SDR UPS06446931](https://openairdocs.org/sdr/UPS06446931.md): Door Frame · cracked · May 7, 2006 · N521UP · Boeing 747211B · Passenger/Crew Doors > R3 DOOR AFT FRAME UPPER CORNER CRACKED, CRACK LENGTH 1 INCH. R3 DOOR AFT FRAME UPPER CORNER REPAIRED AS PER SRM 52-10-02 FIG 10. - [SDR UPS06446914](https://openairdocs.org/sdr/UPS06446914.md): Cargo Track · corroded · May 7, 2006 · N521UP · Boeing 747211B · Fuselage, Seat/Cargo Attach Fittings > BS 420-440 RBL88 TIE DOWN TRACK I/B FLANGE FOUND CORROSION. CORROSION BLEND OUT 0.030" BY 1/2" BY 2" EXCEED SRM LIMIT. BS410-460 RBL88 TRACK REPLACED AND INSTALLED AS PER SRM 51-10-01 PG 9 AND 51-30-02. - [SDR UPS06446933](https://openairdocs.org/sdr/UPS06446933.md): Stringer · corroded · May 5, 2006 · N521UP · Boeing 747211B · Fuselage Main, Longeron/Stringer > RT LOWER FUSELAGE EXTERNAL SKIN SURFACE FOUND BILGE UP AT STA 2160 TO STA 2170 STR 45R. BULK CARGO BS 2150 TO BS 2180 S45R STRINGER REPAIRED AS PER SRM 53-10-03 FIG 1. - [SDR UPS06446921](https://openairdocs.org/sdr/UPS06446921.md): Frame · cracked · May 5, 2006 · N521UP · Boeing 747211B · Fuselage Main, Frame > LT BS 2231 FRAME INNER FLANGE BETWEEN S24L AND S25L FOUND 1 HOLE CRACK AT FRAME STRAP CRACK LENGTH 1/16". BS 2231 LT FRAME ATTACH STRAP REPAIRED BETWEEN STR 24L TO 26L AS PER SRM 53-10-04 FIG 15. CONTINUED INSPECTION IS REQUIRED AS PER SRM 53-10-04 FIG 115 T - [SDR UPS06446917](https://openairdocs.org/sdr/UPS06446917.md): Stiffener · cracked · May 5, 2006 · N521UP · Boeing 747211B · Fuselage Main, Structure > NWW TOP PANEL BS280-300 RBL 10 STIFFENER RADIUS AREA FOUND CRACK APP 3/4". NWW TOP PANEL BS280-300 RBL10 STIFFENER REPLACED AS PER SRM 51-10-01 PG9 AND INSTALLED AS PER SRM 51-30-02. - [SDR UPS04443095](https://openairdocs.org/sdr/UPS04443095.md): Frame · cracked · Aug 16, 2004 · N520UP · Boeing 747211B · Fuselage Main, Frame > INSPECTION TYPE: C, M/D: BS 400 STR 15L FRAME CRACKED. M/D- BS 400 STR 15L CRACKED FRAME REPAIRED AS PER HX RS R53-12-35187 & UPS EO B747-5310-20990-A. ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql 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 aircraft_model_key = '747211B' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/model/boeing-747-211b/reports --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.