# Service difficulty reports: N521US, cancelled Dec 6, 2018

A list on [N521US, cancelled Dec 6, 2018](https://openairdocs.org/deregistered/N521US-2018-12-06.md).

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first.

Page 1 of 2 · 64 reports

- [SDR DALA13036875521](https://openairdocs.org/sdr/DALA13036875521.md): Wire · loose · Jul 26, 2013 · N521US · Boeing 757251 · Equipment/Furnishings Wiring
  > DIVERTED, SMOKE IN THE CABIN. IN GALLEY 1A FOUND WIRE 18 ON PLUG J003 NOT LOCKED IN CONNECTOR. REPINNED WIRE WITH NEW SOCKET. REPLACED OVEN BANK AND LT OVEN CONTROLLER. REPLACED G1A COFFEEMAKER PRECAUTIONARY. PERFORMED OPS TEST OF OVENS AND COFFEE MAKERS.
- [SDR DALA13035425521](https://openairdocs.org/sdr/DALA13035425521.md): Lamp · burned out · Jul 18, 2013 · N521US · Boeing 757251 · Emergency Lighting
  > ON S/C, FOUND EMERGENCY ESCAPE PATH RED LIGHT INOPERATIVE BY R2 DOOR. REPLACED LAMPS AND SECURED CONNECTION. LIGHT CHECKED OK. REF AMM 33-51.
- [SDR DALA13009925521](https://openairdocs.org/sdr/DALA13009925521.md): Battery Pack · inoperative · Mar 2, 2013 · N521US · Boeing 757251 · Emergency Lighting
  > EMERGENCY TRACK LIGHTING FROM SEATS 33 AFT INOPERATIVE. R & R POWER PACK. GROUND CHECKED NORMAL IAW AMM 33-51.
- [SDR DALA13009125521](https://openairdocs.org/sdr/DALA13009125521.md): Flap Track · corroded · Feb 22, 2013 · N521US · Boeing 757251 · Trailing Edge Flaps
  > NR 2 FLAP TRACK RUST EMINATING FROM AFT MOUNT PAD REMOVED TRACK REF AMM 27-51-15. JACKSCREW 15" OK TO RESTORE FINISH ON LOWER SURFACE OF WING ATTACH POINT RESTORED FINISH ON LOWER SURFACE OF WING ATTACH POINT MACHINED.017" OFF MOUNT PAD TO REMOVE CORROSION.
- [SDR DALA13008365521](https://openairdocs.org/sdr/DALA13008365521.md): Skin · damaged · Dec 24, 2012 · N521US · Boeing 757251 · Fuselage Main, Plate/Skin
  > FUSELAGE SKIN HAS LIGHTNING STRIKES BS 355, S25L & BS 434 S24L & 452, 474, 508, 532 & 540 JUST ABOVE S24L, S23L AT BS 540, 546, 552, 556, 628, 630, 656, S22L AT BS 584 & 588. REMOVED FASTENERS AND C/W BHEC OF FASTENER HOLES IAW SRM 53-00-01. NO CRACKS FOUND R
- [SDR DALA12017035521](https://openairdocs.org/sdr/DALA12017035521.md): Skin · cracked · Dec 20, 2012 · N521US · Boeing 757251 · Nacelle/Pylon, Plate/Skin
  > CRACK INDICATED ON INBD SKIN. CRACK APPROX.250" LONG AT FWD TOP AREA OF CUTOUT. ACCOMPLISHED DETAILED INSPECTION OF THE INBD SKIN IAW PRI 488100-14, REV B, PEV ORIG. NO FURTHER DAMAGE TRIMMED OUT DAMAGE IAW STEP 2 OF PRI 488100-14, REV B, REV ORIG HIGH FREQ
- [SDR DALA12016355521](https://openairdocs.org/sdr/DALA12016355521.md): Charger · malfunctioned · Dec 14, 2012 · N521US · Boeing 757251 · Emergency Lighting
  > ON SERVICE CHECK, FOUND EMERGENCY LIGHTS INOPERATIVE ON FLOOR FROM SEATS 33 TO 38 AND AFT LOWER DOOR EXIT LIGHTS. RESET POWER SUPPLY BATTERY CHARGER ALL LIGHTS CHECKED GOOD.
- [SDR DALA12013255521](https://openairdocs.org/sdr/DALA12013255521.md): Slide · detached · Nov 17, 2012 · N521US · Boeing 757251 · Escape Slide
  > L4 DOOR ESCAPE SLIDE FOUND DETACHED FROM LOWER HARNESS ATTACH POINT. INSTALLED SAFETY PINS IN ASSIST RESERVOIR & CYL.
- [SDR DALA12012435521](https://openairdocs.org/sdr/DALA12012435521.md): Socket · inoperative · Nov 8, 2012 · N521US · Boeing 757251 · Emergency Lighting
  > EMERGENCY TRACK LIGHTING INOPERATIVE AT SEATS 21 AND 22. REPLACED TRACK LIGHTING SOCKETS. OPS CHECKED GOOD.
- [SDR DALA12011285521](https://openairdocs.org/sdr/DALA12011285521.md): Battery · inoperative · Oct 26, 2012 · N521US · Boeing 757251 · Emergency Lighting
  > OVERHEAD EMERGENCY LIGHT AT 2R INOPERATIVE. FOUND BATTERY AND CHARGER BAD. REPLACED BOTH BATTERY AND CHARGER IAW AMM 33-51-07. CK OK.
- [SDR DALA12007415521](https://openairdocs.org/sdr/DALA12007415521.md): Light · inoperative · Sep 15, 2012 · N521US · Boeing 757251 · Emergency Lighting
  > EMERGENCY TRACK LIGHT AT 21F INOPERATIVE. REPLACED LIGHT MODULE. OPS OK.
- [SDR DALA12005725521](https://openairdocs.org/sdr/DALA12005725521.md): Skin · damaged · Aug 21, 2012 · N521US · Boeing 757251 · Fuselage Main, Plate/Skin
  > FOA 2 INCH HOLE IN FUSELAGE BELOW AND AFT OF L4 DOOR THRESHOLD OPENED AFT CARGO. INSTALLED REPAIR DOUBLER PER ERA 506410-14 REV ORIG PRI INSTRUCTIONS MATCH ERA506410-14 REV ORIG REPAIR GOOD PER ERA CLOSED AFT CARGO BIN AFT BULKHEAD WALL COMPLETED ALL STEPS ON
- [SDR DALA1204075521](https://openairdocs.org/sdr/DALA1204075521.md): Door · damaged · Jan 22, 2012 · N521US · Boeing 757251 · Service Doors
  > ON ARRIVAL AT GATE IN MSP CATERING REPORTED A DENT IN DOOR 1R. MAINTENANCE BLENDED TOP AND BOTTOM GOUGES OUT OF DENTS. TOP GOUGE WAS OUT OF LIMITS. DAMAGE WAS CUT OUT PER SRM 52-10-01. AREA WAS TREATED AND DOUBLER WAS INSTALLED PER SRM 52-10-01 REPAIR 7.
- [SDR DALA1203105521](https://openairdocs.org/sdr/DALA1203105521.md): Battery Pack · discharged · Jan 22, 2012 · N521US · Boeing 757251 · Emergency Lighting
  > DURING LINE CHECK MAINTENANCE FOUND AFT SECTION EMERGENCY EXIT LIGHTING & 4L-4R DOOR EXIT INOP. MAINTENANCE REPLACED BATTERY PACK PER AMM 33-51. LIGHTS NOW CHECK OK.
- [SDR DALA1171225521](https://openairdocs.org/sdr/DALA1171225521.md): Wire · broken · Dec 26, 2011 · N521US · Boeing 757251 · Light System Wiring
  > DURING LINE CHECK MAINTENANCE FOUND EMERGENCY FLOOR TRACK LIGHTS IN ROWS 21 AND 22 INOP. MAINTENANCE REPAIRED BROKEN WIRE FOR LIGHTS AT ROWS 21 & 22. OPERATION OF LIGHTS CHECK OK PER WDM 33-51-13.
- [SDR DALA1123735521](https://openairdocs.org/sdr/DALA1123735521.md): Sill · corroded · Apr 1, 2011 · N521US · Boeing 757251 · Fuselage Miscellaneous Structure
  > ON REMOVAL OF AFT CARGO DOOR SIDE PANEL FOUND CORROSION ON AFT CARGO DOOR SILL. BLENDED CORR AREAS PER SRM 51-10-02. OUT OF LIMITS IAW SRM 53-60-15 FIG 101. REMOVED AND REPLACED DOOR SILL T-CHORD IAW SRM 51-40-02 & SRM 51-40-05. SPLICE SIDE PNL AT STA1485
- [SDR DALA1123725521](https://openairdocs.org/sdr/DALA1123725521.md): Panel · corroded · Apr 1, 2011 · N521US · Boeing 757251 · Fuselage Miscellaneous Structure
  > AFT CARGO BETWEEN STA 1380 TO 1440 RBL 22 TO 25 TOP SURFACE OF SIDE PANEL HAS SEVERAL SPOT OF CORROSION AS MARKED. REMOVED CORROSION TOP & UNDERSIDE IAW SRM 51-10-02. FOUND TO BE OUT OF LIMITS PER SRM 53-00-53 FIG 101. REMOVED FWD SPLICE OF TRANS PANEL. AN
- [SDR DALA1123715521](https://openairdocs.org/sdr/DALA1123715521.md): Sill · corroded · Apr 1, 2011 · N521US · Boeing 757251 · Fuselage Miscellaneous Structure
  > AFT CARGO BETWEEN STA 1380 T0 1440 RBL 19 TO 25 UNDERNEATH OF DOOR SILL & SIDE PNL FASTENER & NUT PLATE HAS SURFACE CORROSION. BLENDED CORRODED AREAS ON LWR AREA OF DOOR SILL PER SRM 51-10-02. OUT OF LIMITS PER SRM 53-60-15 FIG 101. DOOR SILL REPLACED ON N/
- [SDR DALA1123515521](https://openairdocs.org/sdr/DALA1123515521.md): Frame · corroded · Mar 31, 2011 · N521US · Boeing 757251 · Fuselage Main, Frame
  > AFT CARGO COMPT FLOOR FRAME AT STA 1460 BILGE FROM S-29L- S-29R AS CORROSION. BLENDED CORRODED IAW SRM 53-00-07. OUT OF LIMITS IAW SRM 53-00-07, FIG 101. TRIMMED DAMAGED AREA IAW ER/A 490233-14, FIG 1. NO CRACKS, FABRICATED REPAIR PARTS IAW ER/A490233-14.
- [SDR DALA1123175521](https://openairdocs.org/sdr/DALA1123175521.md): Support Angle · corroded · Mar 30, 2011 · N521US · Boeing 757251 · Fuselage Miscellaneous Structure
  > ANGLE SUPPORT AFT OF FRAME STN 1440 BETWEEN STR 27R AND S28R EXFOLIATED. REMOVED & INSTALLED NEW CLIP, P/N 146N8515-1, FABRICATED IAW STAM TR T11/876899, IAW SRM 51-40-02.
- [SDR DALA1123165521](https://openairdocs.org/sdr/DALA1123165521.md): Stiffener · corroded · Mar 30, 2011 · N521US · Boeing 757251 · Fuselage Miscellaneous Structure
  > VERTICAL STIFFENER AT FRAME BS 1440 BETWEEN STR 27R AND 28R CORRODED NEAR AFT DOOR SILL. REMOVED & INSTALLED NEW CLIP, FABRICATED IAW STAM TRAVELER #T11/876864. P/N 146N5393-28 IAW SRM 51-40-02.
- [SDR DALA1121805521](https://openairdocs.org/sdr/DALA1121805521.md): Doubler · corroded · Mar 23, 2011 · N521US · Boeing 757251 · Fuselage Miscellaneous Structure
  > FWD CARGO COMPT STA 508 S-27R DOUBLER HAS SURFACE CORROSION AS MARKED. REMOVED CORRODED DOUBLER AND SHEAR TIE, RECEIVED NEW SHEAR TIE FABBED EXT REPAIR DOUBLER IAW SRM 53-00-01. LOCATED AND DRILLED NEW SHEAR TIE AND DOUBLER IAW SRM 51-40-05 TREATED & PRIMED
- [SDR DALA1119845521](https://openairdocs.org/sdr/DALA1119845521.md): Floor Support · corroded · Mar 17, 2011 · N521US · Boeing 757251 · Fuselage Miscellaneous Structure
  > FLOOR SUPPORT AT BL 0 BETWEEN STN 1640 AND STN 1661 CORRODED AS MARKED. REMOVED CORR IAW SRM 51-10-02. ORIGINAL MAT THICKNESS=.050" OUT OF LIMITS IAW SRM 53-00-51. REMOVED FLOOR SUPPORT AND STIFFENER IAW SRM 51-40-02. FABBED NEW CHANNEL SUPPORT IAW DWG 146
- [SDR DALA1119835521](https://openairdocs.org/sdr/DALA1119835521.md): Floorbeam · corroded · Mar 17, 2011 · N521US · Boeing 757251 · Fuselage Main, Floor Beam
  > AT RBL 13 BET FLOORBEAM STA 365TO STA 377 BOX BEAM HAS CORROSION AS MARKED. REMOVED BOX BEAM IAW SRM 51-40-02, FABRICATED NEW BOX BEAM AND ANGLES PER DWG 141N5162. LOCATED AND DRILLED NEW PARTS IAW SRM 51-40-05, TREATED & PRIMED IAW SRM 51-20-01, TOP COATED
- [SDR DALA1119205521](https://openairdocs.org/sdr/DALA1119205521.md): Floor Support · corroded · Mar 15, 2011 · N521US · Boeing 757251 · Fuselage Miscellaneous Structure
  > AFT CARGO COMPARTMENT FLOOR SUPPORT AT STA 1456-1483 RBL 13.0 HAS CORROSION. REMOVED AND INSTALLED FLOOR SUPPORT SPLICERS IAW SRM 51-40-02.
- [SDR DALA1119195521](https://openairdocs.org/sdr/DALA1119195521.md): Floor Support · corroded · Mar 15, 2011 · N521US · Boeing 757251 · Fuselage Miscellaneous Structure
  > R4 DOOR FWD FLOOR SUPPORT CORRODED AT MANY LOCATIONS AS MARKED. REMOVED, FABRICATED, AND INSTALLED NEW FLOOR SUPPORT AT R4 DOOR FWD SUPPORT IAW SRM 51-40-02.
- [SDR DALA1119185521](https://openairdocs.org/sdr/DALA1119185521.md): Sill · corroded · Mar 15, 2011 · N521US · Boeing 757251 · Fuselage Miscellaneous Structure
  > LT DOOR SILL WEB AT STN 1663 CORRODED AS MARKED. REMOVED, FABRICATED, AND INSTALLED CHANNEL IAW SRM 51-40-02.
- [SDR DALA1119175521](https://openairdocs.org/sdr/DALA1119175521.md): Sill · corroded · Mar 15, 2011 · N521US · Boeing 757251 · Fuselage Miscellaneous Structure
  > LT DOOR SILL WEB AT STN 1655 CORRODED AS MARKED. REMOVED, FABRICATED, AND INSTALLED CHANNEL IAW SRM 51-40-02.
- [SDR DALA1119165521](https://openairdocs.org/sdr/DALA1119165521.md): Sill · corroded · Mar 15, 2011 · N521US · Boeing 757251 · Fuselage Miscellaneous Structure
  > LT DOOR SILL WEB AT STN 1772 CORRODED AS MARKED. REMOVED, FABRICATED, AND INSTALLED CHANNEL IAW SRM 51-40-02.
- [SDR DALA1119155521](https://openairdocs.org/sdr/DALA1119155521.md): Sill · corroded · Mar 15, 2011 · N521US · Boeing 757251 · Fuselage Miscellaneous Structure
  > L4 DOOR SILL WEB AT STN 1660 EXFOLIATED. FOUND TO BE OUT OF LIMITS IAW SRM 53-60-15 FIG 101. REMOVED, FABRICATED, AND INSTALLED NEW SILL WEB (CHANNEL) IAW SRM 51-40-02.
- [SDR DALA1119145521](https://openairdocs.org/sdr/DALA1119145521.md): Floor Support · corroded · Mar 15, 2011 · N521US · Boeing 757251 · Fuselage Miscellaneous Structure
  > R4 DOOR AFT FLOOR SUPPORT CORRODED AT MANY LOCATIONS AS MARKED. REMOVED, FABRICATED, AND INSTALLED IAW SRM 51-40-02.RETAIN FOR RECORDS.
- [SDR DALA1119135521](https://openairdocs.org/sdr/DALA1119135521.md): Support Fitting · corroded · Mar 14, 2011 · N521US · Boeing 757251 · Fuselage Miscellaneous Structure
  > CABIN AREA STA 700 NR 3 FROM FWD SCUFF PLATE SUPPORT FITTING AT L2 DOOR SILL HAS CORROSION AS MARKED. REMOVED CORROSION AT BRACKET. BRACKET FOUND TO BE OUT OF LIMITS IAW SRM 53-00-15 FIG 101 DETAIL IV (TR14295). REMOVED, FABRICATED, AND INSTALLED BRACKET IA
- [SDR DALA1118165521](https://openairdocs.org/sdr/DALA1118165521.md): Floor Support · corroded · Mar 12, 2011 · N521US · Boeing 757251 · Fuselage Miscellaneous Structure
  > CABIN AREA BETWEEN STA 700 TO 740 LBL 64-50 FLOOR ANGLE SUPPORT HAS CORROSION. REMOVED CORROSION BETWEEN IAW SRM 51-10-02 ORIGINAL THICKNESS 0.080 L=.500" W=450" D=0.012 FOUND TO BE OUT OF LIMITS IAW SRM 53-00-15 FIG 101 DETAIL III, IV. REMOVED FLOOR 0002008
- [SDR DALA1118155521](https://openairdocs.org/sdr/DALA1118155521.md): Floor Support · corroded · Mar 12, 2011 · N521US · Boeing 757251 · Fuselage Miscellaneous Structure
  > FLOORBEAM STA 365 AND BET BL 0 TO RBL 50, PREVIOUSLY REPAIRED FLOOR SUPPORT HAS CORROSION AS MARKED. REMOVED SURFACE CORROSION DEPTH TO BE.027 OUT OF LIMITS PER SRM 53-00-51 FIG 101. REPAIRED IAW SRM 53-00-51 FIG 201 R3. REMOVED REPAIR. FABBED T-CHORD BAC
- [SDR DALA1118145521](https://openairdocs.org/sdr/DALA1118145521.md): Floor Support · corroded · Mar 11, 2011 · N521US · Boeing 757251 · Fuselage Miscellaneous Structure
  > BETWEEN FLOORBEAM STA 345 TO STA 365, LBL 25 FLOOR SUPPORT HAS CORROSION AS MARKED. BLENDED CORROSION PER SRM 51-10-02, FOUND TO BE OUT OF LIMITS IAW SRM 53-00-04, FIG 101 DETAIL II. REM AND REP SHIM IAW SRM 51-40-02, 51-40-05 AND TRAVELERT11/873556, MAT 707
- [SDR DALA1117075521](https://openairdocs.org/sdr/DALA1117075521.md): Box Beam · corroded · Mar 10, 2011 · N521US · Boeing 757251 · Fuselage Miscellaneous Structure
  > AT RBL 41 BET STA 324 TO STA 345 BOX BEAM HAS CORROSION AS MARKED. BLENDED AREA PER SRM 51-10-02, FOUND TO BE OUT OF LIMITS IAW SRM 53-00-51, FIG 101. REMOVED AND REPLACED BEAM BOX IAW SRM 51-40-02, SRM 51-40-05. PART FABRICATED ON TRAVELER T11/873823 MAT. B
- [SDR DALA1117065521](https://openairdocs.org/sdr/DALA1117065521.md): Floorbeam · corroded · Mar 10, 2011 · N521US · Boeing 757251 · Fuselage Main, Floor Beam
  > AT LBL 62 BET FLOORBEAM STA 365 TO STA 377 BOX BEAM HAS CORROSION AS MARKED. REMOVED CORROSION, AFTER REWORK, DEPTH (.014) ORIGINAL MAT (.050) OUT OF LIMITS PER SRM 53-00-51, FIG 101 FABRICATED NEW BOX BEAM PER STAM TRAVELER T11/873094. INSTALLED BOX BEAM SU
- [SDR DALA1116745521](https://openairdocs.org/sdr/DALA1116745521.md): Structure · corroded · Mar 9, 2011 · N521US · Boeing 757251 · Fuselage Miscellaneous Structure
  > PREVIOUS REPAIR AT STN 1640 CORRODED AT 4 LOCATIONS BETWEEN LBL 15 AND RBL 60. BLENDED AREA PER SRM 51-10-02. FOUND TO BE OUT OF LIMITS IAW SRM 53-00-51 FIG 101. REMOVED AND REPLACED UPPER CHORD IAW SRM 53-00-51, REPAIR 3 FIGURE 201. REMOVED AND REPLACED 2
- [SDR DALA1116735521](https://openairdocs.org/sdr/DALA1116735521.md): Floorbeam · corroded · Mar 9, 2011 · N521US · Boeing 757251 · Fuselage Main, Floor Beam
  > PREVIOUS REPAIR AT BS 1640 CORRODED AT 4 LOCATIONS BETWEEN LBL 15 AND LBL 60. REMOVED CORROSION AT STN 1640 FLOORBEAM PER SRM 51-10-02, FOUND TO BE OUT OF LIMITS IAW SRM 53-00-51 FIG 101. REMOVED AND REPLACED UPPER CHORD AT BS 1640 FROM LBL 64 TO LBL 15 IAW
- [SDR DALA13033645521](https://openairdocs.org/sdr/DALA13033645521.md): Skin · dented · Dec 17, 2010 · N521US · Boeing 757251 · Fuselage Main, Plate/Skin
  > DURING CHECK, A DENT WAS FOUND COMMON TO THE S4R LAP SPLICE AT BS 564. THE DENTED AREA OF THE LAP WAS TRIMMED OUT AND REPAIRED IAW SECT I OF ER/A 13-488107-14. THE REPAIR IAW SECTION I IS APPROVED FOR 42,000 TOTAL ACFT CYCLES. OBTAIN STAGE 3 DTA APPROVAL OF
- [SDR DALA1035875521](https://openairdocs.org/sdr/DALA1035875521.md): Skin · dented · Dec 16, 2010 · N521US · Boeing 757251 · Fuselage Main, Plate/Skin
  > DURING L-CK, DENTS WERE FOUND IN FUSELAGE SKIN AT STA 610 S-15L TO S16L. DENTS WERE CUT OUT AND EXTERNAL DOUBLER WAS INSTALLED. SECTION II PERMANENT REPAIR LIMITED TO 69,700 TOTAL ACFT CYCLES. ADDITIONAL ER/A REVISION REQUIRED FOR CONTINUED SERVICE OF THIS
- [SDR DALA1035545521](https://openairdocs.org/sdr/DALA1035545521.md): Skin · damaged · Dec 7, 2010 · N521US · Boeing 757251 · Trailing Edge Flaps
  > REMOVED DAMAGED UPPER SKIN AND CORE, TAPER SANDED, FABRICATED NEW CORE SECTION, BONDED CORE SECTION AND REPAIR PLIES IAW SRM 51-70-07, PARA 4. FOUND MORE DELAMINATION ON UPPER SKIN. REMOVED DAMAGE, TAPER SANDED, BONDED REPAIR PLIES, AND APPLIED SEAL RESIN IAW
- [SDR DALA1011445521](https://openairdocs.org/sdr/DALA1011445521.md): Wire · chafed · May 27, 2010 · N521US · Boeing 757251 · Light System Wiring
  > DURING CRUISE AND IN SMOOTH AIR, ALL CABIN EMERGENCY LIGHTS FLICKERED ON AND OFF. MX REPAIRED CHAFED WIRING NEAR DOOR 2L. OPS CHECK WAS GOOD.
- [SDR DALA1011435521](https://openairdocs.org/sdr/DALA1011435521.md): Power Supply · malfunctioned · May 27, 2010 · N521US · Boeing 757251 · Emergency Lighting
  > DURING FLIGHT, F/A'S REPORTED EMERGENCY LIGHTS FWD OF DOOR 3 FLICKERING ON AND OFF. MX COULD NOT DUPLICATE AND CHANGED THE POWER SUPPLY. OPS CHECK WAS GOOD.
- [SDR DALA1010965521](https://openairdocs.org/sdr/DALA1010965521.md): Switch · faulty · May 22, 2010 · N521US · Boeing 757251 · Emergency Lighting
  > FLIGHT CREW REPORTS THE CABIN EMERGENCY LIGHTS CYCLE ON AND OFF WHEN ARMED. MX REPLACED THE F/A ARMING SWITCH. OPS CHECK WAS GOOD.
- [SDR DALA108895521](https://openairdocs.org/sdr/DALA108895521.md): Power Supply · defective · Apr 27, 2010 · N521US · Boeing 757251 · Emergency Lighting
  > DURING FLIGHT, EMERGENCY SIGNS AND PATH LIGHTS CAME ON INTERMITTENTLY. MAINTENANCE REPLACED THE POWER SUPPLY. OPERATIONAL CHECK WAS GOOD.
- [SDR DALA108885521](https://openairdocs.org/sdr/DALA108885521.md): Light · inoperative · Apr 26, 2010 · N521US · Boeing 757251 · Emergency Lighting
  > DURING FLIGHT, EMERGENCY OVERHEAD AND FLOOR LIGHTS COME ON INTERMITTENTLY. MAINTENANCE REPLACED THE EMERGENCY LIGHT SWITCH AT THE FLIGHT ATTENDANT PANEL. OPERATIONAL CHECK WAS GOOD.
- [SDR DALA107135521](https://openairdocs.org/sdr/DALA107135521.md): Battery Pack · inoperative · Apr 2, 2010 · N521US · Boeing 757251 · Emergency Lighting
  > EMERGENCY EGRESS LIGHTING FOUND INOP ON OVERNIGHT AT DOOR 2L, DOOR 3L AND ROWS 30, 31. REPLACED PWR SUPPLY AND BATTERY PACKS M732 AND M735, OPS CHECKS OK.
- [SDR DALA100205521](https://openairdocs.org/sdr/DALA100205521.md): Cylinder · inoperative · Jan 6, 2010 · N521US · Boeing 757251 · Passenger/Crew Doors
  > DURING OVERNIGHT CHECK, FOUND LT SIDE DOOR EMERGENCY POWER SPRING CYLINDER INOP. MX R & R THE EMERGENCY POWER SPRING CYLINDER. CHECKED GOOD, AND ACFT WAS RETURNED TO SERVICE.
- [SDR NWAA 091275521](https://openairdocs.org/sdr/NWAA%20091275521.md): Oven · smoke · Apr 17, 2009 · N521US · Boeing 757251 · Buffet/Galleys
  > IN CRUISE FROM PDX TO MSP, THE OVEN BEGAN TO SMOKE WHEN IT WAS TURNED ON. THE FLIGHT ATTENDANT TURNED THE OVEN OFF AND PULLED THE ASSOCIATED CIRCUIT BREAKER. THE FLIGHT CONTINUED ON AND LANDED UNEVENTFULLY IN MSP. MAINTENANCE REPLACED THE OVEN AND THE SYSTE

Next page: https://openairdocs.org/deregistered/N521US-2018-12-06/reports.md?page=2

## 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 n_number = 'N521US' AND deregistration_id = 'N521US-2018-12-06'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/deregistered/N521US-2018-12-06/reports

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