# Service difficulty reports: N8721B, cancelled Feb 24, 2023

A list on [N8721B, cancelled Feb 24, 2023](https://openairdocs.org/deregistered/N8721B-2023-02-24.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 · 94 reports

- [SDR REXA2018040200245](https://openairdocs.org/sdr/REXA2018040200245.md): Light · inoperative · Apr 2, 2018 · N8721B · Cndair CL6002B19 · Emergency Lighting
  > LEFT CENTER FUSELAGE EMERGENCY LIGHT INOPERATIVE. REMOVED AND REPLACED THE EMERGENCY LIGHT IAW AMM 33-51-21.
- [SDR REXA2018033000233](https://openairdocs.org/sdr/REXA2018033000233.md): Post · cracked · Mar 30, 2018 · N8721B · Cndair CL6002B19 · Fuselage Miscellaneous Structure
  > INBD FLANGE OF VERTICAL POST AT LBL 27, BS 409+128 IS CRACKED AT BOTTOM EDGE NEAR RADIUS AND EXTENDING HALFWAY BETWEEN THE FIRST AND SECOND RIVET. REPAIRED IAW REO 601R-53-41-0056. MAJOR REPAIR.
- [SDR REXA2017092001025](https://openairdocs.org/sdr/REXA2017092001025.md): Stowage Box · inoperative · Sep 20, 2017 · N8721B · Cndair CL6002B19 · Crew Oxygen System
  > OBSERVER`S OXYGEN MASK PRESS TO TEST AND RESET BUTTON, OXYGEN DOES NOT STOP AND SHUTOFF, CATS EYE STAYS TELLOW, OXYGEN KEEPS FLOWING. REPLACED THE OXYGEN MASK STOWAGE BOX IAW AMM 35-11-15. OPS CHECKED GOOD. SERVICED THE CREW OXYGEN TO 1850 PSI IAW AMM 1
- [SDR REXA2017082000899](https://openairdocs.org/sdr/REXA2017082000899.md): Ballast · faulty · Aug 20, 2017 · N8721B · Cndair CL6002B19 · Passenger Compartment Lighting
  > BURNING SMELL AT THE BACK OF THE CABIN AT LAST ROW SEAT. FOUND POWER UNIT/DIMMER (BALLAST) BURNING REMOVED ANND REPLACED BALLAST IAW 33-21-10 OPS CHECK GOOD.
- [SDR REXA2017081800897](https://openairdocs.org/sdr/REXA2017081800897.md): Smoke Detector · inoperative · Aug 18, 2017 · N8721B · Cndair CL6002B19 · Smoke Detection
  > LAVATORY SMOKE DETECTOR FAILED TO TEST. R & R THE LAVATORY SMOKE DETECTOR IAW AMM 26-16-01. OPS CHECKED GOOD.
- [SDR REXA2017081400882](https://openairdocs.org/sdr/REXA2017081400882.md): Flashlight · inoperative · Aug 14, 2017 · N8721B · Cndair CL6002B19 · Emergency Equipment
  > F/A FOUND FLASHLIGHT IN FWD CLOSET INOPERATIVE. REMOVED AND REPLACED THE FLASHLIGHT IAW AMM 25-61-02. OPS CHECKED GOOD.
- [SDR REXA2017081300879](https://openairdocs.org/sdr/REXA2017081300879.md): Flashlight · inoperative · Aug 13, 2017 · N8721B · Cndair CL6002B19 · Emergency Equipment
  > ON PRE-FLIGHT, F/A FOUND THE EMERGENCY FLASHLIGHT IN FWD BIN/CLOSET TO BE INOPERATIVE. REMOVED AND REPLACED THE FLASHLIGHT, OPS CHECKED GOOD IAW 25-61-00.
- [SDR REXA2017053000639](https://openairdocs.org/sdr/REXA2017053000639.md): Light · inoperative · May 30, 2017 · N8721B · Cndair CL6002B19 · Emergency Lighting
  > DURING LC-1 CHECK, FOUND CEILING EMERGENCY LIGHT INOPERATIVE AT ROW 10. REMOVED AND REPLACED CEILING EMERGENCY LIGHT ROW 10 BULB IAW AMM 33-51-16. OPS CHECKED GOOD.
- [SDR REXA2017052000611](https://openairdocs.org/sdr/REXA2017052000611.md): Oxygen Mask · inoperative · May 20, 2017 · N8721B · Cndair CL6002B19 · Crew Oxygen System
  > FIRST OFFICER`S OXYGEN MASK HARNESS HAS A LEAK AND WILL NOT INFLATE. R & R THE OXYGEN MASK IAW AMM 35-11-12. OP CHECKED GOOD. OK FOR SERVICE.
- [SDR REXA2017041600523](https://openairdocs.org/sdr/REXA2017041600523.md): G Switch · inoperative · Apr 16, 2017 · N8721B · Cndair CL6002B19 · Emergency Locator Beacon
  > ELT FAILS OPS CHECK, THE G SWITCH FAILS TO OPERATE. REMOVED AND REPLACED ELT IAW AMM 25-62-01-400-801. ELT OPS CHECKED GOOD.
- [SDR REXA2017041300502](https://openairdocs.org/sdr/REXA2017041300502.md): Bulb · inoperative · Apr 13, 2017 · N8721B · Cndair CL6002B19 · Emergency Lighting
  > LEFT WING EXTERIOR EMERGENCY EXIT LIGHT INOPERATIVE. R & R THE BULB IAW AMM 33-51-15. OPS CHECKED GOOD.
- [SDR REXA2017010900023](https://openairdocs.org/sdr/REXA2017010900023.md): Oxygen Mask · leaking · Jan 9, 2017 · N8721B · Cndair CL6002B19 · Crew Oxygen System
  > OXGEN LEVEL LOW, 250 PSI. SUSPECT LEAK IN OBSERVER`S MASK. REMOVED AND REPLACED THE OXYGEN MASK IAW TASK 35-11-12-000-801.
- [SDR REXA2017010600009](https://openairdocs.org/sdr/REXA2017010600009.md): Oxygen Mask · leaking · Jan 6, 2017 · N8721B · Cndair CL6002B19 · Crew Oxygen System
  > OBSERVERS OXYGEN MASK LEAKS. REMOVED AND REPLACED THE OXYGEN MASK IAW AMM 35-11-12.
- [SDR REXA2016082701609](https://openairdocs.org/sdr/REXA2016082701609.md): Microphone · inoperative · Aug 27, 2016 · N8721B · Cndair CL6002B19 · Communications System
  > CREW NOTED CAPTAIN`S OXYGEN MASK MICROPHONE INOPERATIVE. REPLACED THE OXYGEN MASK IAW AMM 35-11-12. OPS / LEAK TEST GOOD. ACFT OK FOR SERVICE.
- [SDR REXA2016070601248](https://openairdocs.org/sdr/REXA2016070601248.md): Oxygen Mask · broken · Jul 6, 2016 · N8721B · Cndair CL6002B19 · Crew Oxygen System
  > FIRST OFFICER OXYGEN MASK BROKEN THE TUBING HAS A LEAK. REPLACED THE OXYGEN MASK IAW AMM 35-11-12. OPS TEST GOOD. SERVICED CREW OXYGEN IAW AMM 12-16-35. VERIFIED FILL CAP AND SERVICE PANEL CLOSED.
- [SDR REXA2016061601082](https://openairdocs.org/sdr/REXA2016061601082.md): Terminal · defective · Jun 16, 2016 · N8721B · Cndair CL6002B19 · Emergency Lighting
  > EMERGENCY LIGHT OVERHEAD OUT. DEFERRED CABIN EMERGENCY LIGHT CEILING LIGHT IAW MEL 33-51-11. ENTERED IN MMO2, PLACARD INSTALLED AND MOC 4632 NOTIFIED. R & R TERMINAL LUG IAW ESPM 20-20-00. OPS CHECK GOOD IAW AMM 33-51-00. NO FURTHER DEFECTS NOTED. THIS C
- [SDR REXA2016042000629](https://openairdocs.org/sdr/REXA2016042000629.md): Cam · damaged · Apr 20, 2016 · N8721B · Cndair CL6002B19 · Trailing Edge Flaps
  > RIGHT OTBD FLAP VANE MOUNTS 1, 2, 4, 6 & 7 ARE KNIFE EDGED. RT OTBD FLAP VANE BUTE DOOR MOUNTS 1, 2, 4 & 6 WERE FOUND TO BE ACCEPTABLE, AS IS BUTE DOOR CAM 7 FOUND TO BE OUT OF LIMITS IAW REO 601R-57-53-195. R & R BUTE DOOR CAM FITTING OTBD 7 IAW REO 601R-57
- [SDR REXA2016041800653](https://openairdocs.org/sdr/REXA2016041800653.md): Skin · dented · Apr 18, 2016 · N8721B · Cndair CL6002B19 · Fuselage Main, Plate/Skin
  > DENT IN FUSELAGE SKIN AT FS 682.0 BELOW STRINGER 23LT. PERFORMED CUT OUT TO REMOVE DAMAGE. FABRICATED & INSTALLED REPAIR DOUBLER IAW EA CRJ 253-04212.
- [SDR REXA2016041700630](https://openairdocs.org/sdr/REXA2016041700630.md): Panel · cracked · Apr 17, 2016 · N8721B · Cndair CL6002B19 · Vertical Stabilizer Miscellaneous Structure
  > LEFT PANEL 326AL IS BENT & CRACKED AT END, PANEL RACK. CUT OUT DAMAGE & FABRICATED FILLER & REPAIRED DOUBLER & INSTALLED IAW EA CRJ255-04224 & CRJ 200 51-42-06.
- [SDR REXA2016041600632](https://openairdocs.org/sdr/REXA2016041600632.md): Panel · cracked · Apr 16, 2016 · N8721B · Cndair CL6002B19 · Vertical Stabilizer Miscellaneous Structure
  > RIGHT PANEL 326 BR IS BENT & CRACKED AT END, PANEL RACK. DAMAGE WAS REMOVED, DOUBLER & FILLER WAS MANUFACTURED PARTS WERE TREATED & INSTALLED IAW REO 601R-55-32-233.
- [SDR REXA2016041200631](https://openairdocs.org/sdr/REXA2016041200631.md): Vane · chafed · Apr 12, 2016 · N8721B · Cndair CL6002B19 · Trailing Edge Flaps
  > RIGHT OTBD FLAP VANE IS CHAFED INBD OF NR 7 MOUNT. REPLACED RT OTBD FLAP VANE LE IAW SRM 51-40-11 & 51-42-10.
- [SDR REXA2016041100634](https://openairdocs.org/sdr/REXA2016041100634.md): Landing · corroded · Apr 11, 2016 · N8721B · Cndair CL6002B19 · Fuselage Miscellaneous Structure
  > FLOOR PANEL LANDING AT LBL 27 FROM FS 609 - 621 HAS CORROSION. REPAIRED IAW EA CRJ253-04223. INSTALLED REPAIR ON INBD & OTBD FLOOR PANEL LANDING IAW EA CRJ253-04223.
- [SDR REXA2016041100633](https://openairdocs.org/sdr/REXA2016041100633.md): Cover Plate · gouged · Apr 11, 2016 · N8721B · Cndair CL6002B19 · Cargo/Baggage Doors
  > AFT CARGO DOOR KICK PLATE COVER HINGE CRACKED & COVER PLATE GOUGED. REPLACED PLATE IAW SRM 51-42-02 PG 7 & 11.
- [SDR REXA2016041000635](https://openairdocs.org/sdr/REXA2016041000635.md): Floorbeam · corroded · Apr 10, 2016 · N8721B · Cndair CL6002B19 · Fuselage Main, Floor Beam
  > STATION 574 - 609, LBL 27 TRACK HAS CORROSION. R & R FLOORBEAM CAP 574FS-609FS IAW REO 601R-53-61-3778 & SRM 51-42-21.
- [SDR REXA2016040900654](https://openairdocs.org/sdr/REXA2016040900654.md): Seat Track · corroded · Apr 9, 2016 · N8721B · Cndair CL6002B19 · Fuselage, Seat/Cargo Attach Fittings
  > STATION 589 - 621, RBL 27 TRACK HAS CORROSION. REPAIRED IAW EA CRJ253-04118. INSTALLED REPAIR ON INBD & OTBD LANDINGS AT RBL 27, STATION 609 - 621 IAW EA CRJ253-04118. REMOVED CORROSION FROM FS 589 - 609 & FOUND TO BE IN LIMITS WITH A MAX LOSS OF.004 IAW S
- [SDR REXA2016040800636](https://openairdocs.org/sdr/REXA2016040800636.md): Support Bracket · cracked · Apr 8, 2016 · N8721B · Cndair CL6002B19 · Wing, Attach Fittings
  > PICCOLO TUBE SUPPORT BRACKET IS CRACKED ON OTBD UPPER EDGE AT RT WS 149.58. R & R PICCOLO TUBE SUPPORT BRACKET LT WING IAW SRM 51-42-10 & SRM 51-42-02. TORQUED BOLTS TO 35 IN POUNDS.
- [SDR REXA2016040700638](https://openairdocs.org/sdr/REXA2016040700638.md): Drag Angle · cracked · Apr 7, 2016 · N8721B · Cndair CL6002B19 · Passenger/Crew Doors
  > PASSENGER DOOR AFT DRAG ANGLE IS CRACKED, JUST FWD OF MOTOR PULLEY. R & R UNSERVICEABLE CRACKED DRAG ANGLE WITH A SERVICEABLE DRAG ANGLE IAW REO 601R-52-11-513.
- [SDR REXA2016040500637](https://openairdocs.org/sdr/REXA2016040500637.md): Attach Bracket · cracked · Apr 5, 2016 · N8721B · Cndair CL6002B19 · Wing, Attach Fittings
  > RIGHT WING LE AT STATION 149, LE ATTACH BRACKET CRACKED ON LOWER END. REMOVED CRACKED UNSERVICEABLE RT LE ATTACH BRACKET & REPLACED IT WITH A NEW SERVICEABLE RT LE ATTACH BRACKET IAW SRM 51-41-02.
- [SDR REXA2016010900025](https://openairdocs.org/sdr/REXA2016010900025.md): Light · malfunctioned · Jan 9, 2016 · N8721B · Cndair CL6002B19 · Emergency Lighting
  > EMERGENCY LIGHTS FAIL TO EXTINGUISH WHEN SWITCH PLACED ARM. RESET CB 4-C-2, E-LIGHTS TESTED OK IAW AMM 33-51-00. OK FOR SERVICE.
- [SDR REXA2015101900979](https://openairdocs.org/sdr/REXA2015101900979.md): Life Vest · unserviceable · Oct 19, 2015 · N8721B · Cndair CL6002B19 · Life Jacket
  > CAPTAINS LIFE VEST HAS HOLE IN BAG. R & R CAPTAINS LIFE VEST IAW AMM 25-61-03.
- [SDR REXA2015071000671](https://openairdocs.org/sdr/REXA2015071000671.md): Light · inoperative · Jul 10, 2015 · N8721B · Cndair CL6002B19 · Emergency Lighting
  > CREW REPORTED FLIGHT DECK EMER LIGHT ON REAR OF MID CABIN LIGHT ASSEMBLY INOPERATIVE. REPLACED BULB IAW AMM 33-50-00. ALL CHECKED GOOD.
- [SDR REXA2015070400655](https://openairdocs.org/sdr/REXA2015070400655.md): Life Vest · torn · Jul 4, 2015 · N8721B · Cndair CL6002B19 · Life Jacket
  > ONE INFANT LIFE VEST BAG TORN. R & R INFANT LIFE VEST IAW PA 25-069A.
- [SDR REXA2015011300050](https://openairdocs.org/sdr/REXA2015011300050.md): Cable · frayed · Jan 13, 2015 · N8721B · Cndair CL6002B19 · Passenger/Crew Doors
  > THE PAX DOOR ASSIST CABLES ARE FRAYED. REPLACED POWER ASSIST MOTOR & CABLE ASSEMBLY IAW MM 52-11-08-000 400-802. OPERATIONS CHECKED GOOD.
- [SDR REXA2014091400956](https://openairdocs.org/sdr/REXA2014091400956.md): Spigot · out of adjust · Sep 14, 2014 · N8721B · Cndair CL6002B19 · Passenger/Crew Doors
  > PAX DOOR WILL NOT OPEN. ADJUSTED FWD DOOR LATCH SPIGOT IAW 52-11-00. OPERATIONS CHECKED GOOD IAW N54245 FOR DETAILS.
- [SDR REXA2014040500048](https://openairdocs.org/sdr/REXA2014040500048.md): Fitting · cracked · Apr 1, 2014 · N8721B · Cndair CL6002B19 · Fuselage Miscellaneous Structure
  > THE INBD & OTBD ATTACH CLIPS AT STRINGER 3L & FS 280 BULKHEAD ARE CRACKED, 0.5"EACH. REPAIRED IAW SRM 51-42-06 51-42-21.
- [SDR REXA2014040400043](https://openairdocs.org/sdr/REXA2014040400043.md): Fitting · cracked · Apr 1, 2014 · N8721B · Cndair CL6002B19 · Fuselage Miscellaneous Structure
  > TWO CRACKS IN CLIPS AT FS 484 INTERCOSTAL TO FLOOR BEAMS, 0.09" & 0.079". REPAIRED IAW REO 601R-53-41-059.
- [SDR REXA2014040200039](https://openairdocs.org/sdr/REXA2014040200039.md): Frame · corroded · Mar 31, 2014 · N8721B · Cndair CL6002B19 · Fuselage Main, Frame
  > CORROSION ON THE LOWER FRAME SECTOR AT BS 574 BETWEEN STRINGERS 26R & 26L. REPAIRED IAW EA CRJ253-02406.
- [SDR REXA2013080201552](https://openairdocs.org/sdr/REXA2013080201552.md): Light · inoperative · Aug 2, 2013 · N8721B · Cndair CL6002B19 · Emergency Lighting
  > FLOOR EMERGENCY LIGHT STRIP AT ROW 9, INOPERATIVE.
- [SDR REXA2013060901069](https://openairdocs.org/sdr/REXA2013060901069.md): Warning Message · illuminated · Jun 9, 2013 · N8721B · Cndair CL6002B19 · Central Warning
  > FLAPS FAILED MESSAGE OCCURRED DURING FLIGHT WITH THE FLAPS AT 30 DEGREES, AIRSPEED WAS 170KTS, APPROXIMATELY 30 MINUTES INTO THE FLIGHT WITH OAT AT 22 DEGREES C.
- [SDR REXA2013041600635](https://openairdocs.org/sdr/REXA2013041600635.md): Frame · chafed · Apr 13, 2013 · N8721B · Cndair CL6002B19 · Fuselage Main, Frame
  > FRAME AT FS 718 BETWEEN S-16R AND S-17R CHAFED FROM BRAIDED HYD SYSTEM LINE. REPAIRED IAW EA CRJ253-01496 AND ASSOCIATED 8110-3.
- [SDR REXA2013031700565](https://openairdocs.org/sdr/REXA2013031700565.md): Track · dirty · Mar 17, 2013 · N8721B · Cndair CL6002B19 · Passenger/Crew Doors
  > MAIN CABIN DOOR HARD TO UNLOCK FROM INSIDE, HAVE TO PULL EXTREMELY HARD ON THE HANDLE FOR IT TO OPEN. CLEANED & LUBED PASSENGER DOOR HANDLE STOW TRACK & BEARING IAW AMM 52-11-00.
- [SDR REXA2013020300218](https://openairdocs.org/sdr/REXA2013020300218.md): Door · iced · Feb 3, 2013 · N8721B · Cndair CL6002B19 · Passenger/Crew Doors
  > DOOR DIFFICULT TO OPEN DUE TO ICING. APPLIED HEAT TO PASSENGER DOOR. PERFORMED OPS CHECK OF DOOR IAW AMM 52-11-00. OPS CHECK GOOD. OK FOR SERVICE.
- [SDR REXA2013012100166](https://openairdocs.org/sdr/REXA2013012100166.md): Door · lack of lube · Jan 21, 2013 · N8721B · Cndair CL6002B19 · Passenger/Crew Doors
  > PASSENGER DOOR WILL NOT OPEN FROM INSIDE, AND IS DIFFICULT TO OPEN FROM OUTSIDE. FOUND DOOR REQUIRED LUBRICATION PER AMM 52-11-00. LUBRICATED REINSPECTED AND OPS CHECK PASSENGER DOOR IAW AMM 52-11-00. OPC GOOD COULD NOT DUPLICATE. AIRCRAFT OK FOR SERVICE.
- [SDR REXA2013011900159](https://openairdocs.org/sdr/REXA2013011900159.md): Battery · discharged · Jan 19, 2013 · N8721B · Cndair CL6002B19 · Emergency Equipment
  > FLIGHT ATTENDANT FLASHLIGHT STILL NOT BLINKING LED LIGHT. REMOVED AND REPLACED FLIGHT ATTENDANT FLASHLIGHT BATTERY IAW AMM 25-61-02. OK FOR SERVICE.
- [SDR REXA2012112401521](https://openairdocs.org/sdr/REXA2012112401521.md): Panel · cracked · Nov 23, 2012 · N8721B · Cndair CL6002B19 · Nacelle/Pylon Miscellaneous Structure
  > RIGHT ENGINE LOWER FIREBOX PANEL P/N 601-37003-162 CRACKED ON BASE OF FORWARD SEPARATOR. REPAIRED IAW BOMBARDIER REO 601R-54-60-016.
- [SDR REXA2012092701368](https://openairdocs.org/sdr/REXA2012092701368.md): Life Vest · unserviceable · Sep 27, 2012 · N8721B · Cndair CL6002B19 · Life Jacket
  > ONE EA INFANT LIFE VEST POUCH HAS HOLE ON SIDE. REMOVED AND REPLACED INFANT LIFE VEST IAM AMM 25-61-03.
- [SDR REXA0829201201299](https://openairdocs.org/sdr/REXA0829201201299.md): Battery Pack · inoperative · Aug 29, 2012 · N8721B · Cndair CL6002B19 · Emergency Lighting
  > NR 1 EMERGENCY LIGHT BATTERY INOPERATIVE. REMOVED AND REPLACED BATTERY IAW AMM 33-51-04. OPS CHECKED GOOD.
- [SDR REXA2012082201283](https://openairdocs.org/sdr/REXA2012082201283.md): Inverter · failed · Aug 22, 2012 · N8721B · Cndair CL6002B19 · Emergency Lighting
  > EMERGENCY LIGHTS ROW 9 THRU 12 INOPERATIVE. TROUBLESHOOT PER WM 33-51-00. FOUND INVERTER INOPERATIVE. REMOVED AND REPLACED INVERTER IAW AMM 33-51-00. OPS CHECKED GOOD AT THIS TIME.
- [SDR REXA2012082101282](https://openairdocs.org/sdr/REXA2012082101282.md): Container · damaged · Aug 21, 2012 · N8721B · Cndair CL6002B19 · Life Jacket
  > CAPTAIN’S LIFE VEST HAS HOLE IN BAG. REMOVED AND REPLACED CAPTAIN'S LIFE VEST IAW AMM 25-61-03.
- [SDR REXA2012081601267](https://openairdocs.org/sdr/REXA2012081601267.md): Ecu · malfunctioned · Aug 16, 2012 · N8721B · Cndair CL6002B19 · Landing Gear Steering System
  > FLIGHT 4031, HAD A STEERING INOPERATIVE MESSAGE ON CLIMB-OUT. AIRCRAFT CONTINUED TO DESTINATION FOR AN EMERGENCY LANDING. REMOVED AND REPLACED RVDT IAW AMM 32-51-20. REMOVED AND REPLACED ECU IAW AMM 32-51-10. OPS CHECKED GOOD.

Next page: https://openairdocs.org/deregistered/N8721B-2023-02-24/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 = 'N8721B' AND deregistration_id = 'N8721B-2023-02-24'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/deregistered/N8721B-2023-02-24/reports

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