# Service difficulty reports: N494US, cancelled Apr 26, 2007

A list on [N494US, cancelled Apr 26, 2007](https://openairdocs.org/deregistered/N494US-2007-04-26.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 7 · 311 reports

- [SDR QXEA0200626](https://openairdocs.org/sdr/QXEA0200626.md): Sign · inoperative · Apr 10, 2002 · N494US · Fokker F28MK4000 · Emergency Lighting
  > PDX- FORWARD CABIN EXIT SIGN LIGHTS INOPERATIVE. REMOVED AND REPLACED FORWARD CABIN EXIT SIGN. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0200543](https://openairdocs.org/sdr/QXEA0200543.md): Sign · inoperative · Apr 7, 2002 · N494US · Fokker F28MK4000 · Emergency Lighting
  > PDX- FORWARD EMERGENCY EXIT SIGN ABOVE COCKPIT DOOR HAS SEVERAL LIGHT BULBS INOPERATIVE. REMOVED AND REPLACED FORWARD EMERGENCY EXIT SIGN. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0200542](https://openairdocs.org/sdr/QXEA0200542.md): Battery · inoperative · Apr 4, 2002 · N494US · Fokker F28MK4000 · Emergency Lighting
  > PDX- AFT WING/BELLY FAIRING EVACUATION LIGHTS INOPERATIVE. REMOVED AND REPLACED BATTERY POWER SUPPLY. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0200411](https://openairdocs.org/sdr/QXEA0200411.md): Skin · dented · Mar 2, 2002 · N494US · Fokker F28MK4000 · Fuselage Main, Plate/Skin
  > PDX- DENT IN FUSELAGE JUST FORWARD OF FORWARD BAGGAGE DOOR AND JUST AFT OF RIGHT HAND ACM EXHAUST. INSTALLED REPAIR IAW SRM.
- [SDR QXEA0101695](https://openairdocs.org/sdr/QXEA0101695.md): Printed Ckt Board · defective · Oct 21, 2001 · N494US · Fokker F28MK4000 · Emergency Lighting
  > GEG - BOTH FORWARD EXIT SIGNS HAVE INOPERABLE BULBS. REMOVED AND REPLACED EXIT SIGN CIRCUIT BOARD. OPERATIONAL CHECK IS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0101611](https://openairdocs.org/sdr/QXEA0101611.md): Light · inoperative · Oct 7, 2001 · N494US · Fokker F28MK4000 · Emergency Lighting
  > BOI - FORWARD CENTER AISLE EXIT SIGN HAS SEVERAL LIGHTS INOPERABLE. REMOVED AND REPLACED CENTER AISLE EXIT LIGHT ASSEMBLY. OPERATIONAL CHECK IS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0101610](https://openairdocs.org/sdr/QXEA0101610.md): Power Supply · inoperative · Oct 7, 2001 · N494US · Fokker F28MK4000 · Emergency Lighting
  > PDX - EMERGENCY EVACUATION LIGHTS BY ROWS 13 AND 14 ARE WEAK AND INTERMITTENT. REMOVED AND REPLACED AFT EMERGENCY BATTERY POWER SUPPLY, OPERATIONAL CHECK IS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0101357](https://openairdocs.org/sdr/QXEA0101357.md): Light · inoperative · Aug 20, 2001 · N494US · Fokker F28MK4000 · Emergency Lighting
  > SEA - EMERGENCY EGRESS LIGHT INOPERABLE AT ROW 3B. REPLACED BUTT SPLICE. OPERATIONAL CHECK IS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0101197](https://openairdocs.org/sdr/QXEA0101197.md): Fire Loop · shorted · Jul 17, 2001 · N494US · Fokker F28MK4000 · Fire Detection
  > SEA-APU FIRE WARNING. APU AUTO SHUT DOWN AND AGENT DISCHARGED. FOUND WE1-114 AND WE14-114 CONNECTION TO APU FIRE LOOP SHORTED. REPLACED. REPLACED BOTTLE.APU FIRE EXT SYS OPS CHECKS AS PER F-28 MM 26-13-01. PAGE 202, ITEM 2. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0101135](https://openairdocs.org/sdr/QXEA0101135.md): Skin · dented · Jul 3, 2001 · N494US · Fokker F28MK4000 · Fuselage Main, Plate/Skin
  > PDX - LARGE DENT AFT OF MAIN CABIN DOOR FOUND DURING INSPECTION. REPAIRED DAMAGE IN ACCORDENCE WITH FOKKER STRUCTERAL REPAIR MANUAL. CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0100661](https://openairdocs.org/sdr/QXEA0100661.md): Sign · inoperative · May 6, 2001 · N494US · Fokker F28MK4000 · Emergency Lighting
  > BOI - THE EXIT SIGN OVER THE MAIN CABIN DOOR WAS REPORTED INOPERATIVE. REMOVED AND REPLACED EXIT SIGN. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0100636](https://openairdocs.org/sdr/QXEA0100636.md): Circuit Board · faulty · Apr 26, 2001 · N494US · Fokker F28MK4000 · Emergency Lighting
  > SEA- BOTH EMERGENCY EXIT SIGNS AT CENTER FUSELAGE OVERHEAD HAVE BULBS OUT. REPLACED CIRCUIT BOARDS. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0100447](https://openairdocs.org/sdr/QXEA0100447.md): Sign · inoperative · Apr 15, 2001 · N494US · Fokker F28MK4000 · Emergency Lighting
  > SEA - THE FORWARD EXIT SIGN WAS REPORTED TO BE PARTIALLY INOPERATIVE. REMOVED AND REPLACED EXIT SIGN. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0100441](https://openairdocs.org/sdr/QXEA0100441.md): Sign · defective · Apr 5, 2001 · N494US · Fokker F28MK4000 · Emergency Lighting
  > SEA - THE FORWARD EXIT SIGN ABOVE THE FLIGHT COMPARTMENT DOOR WAS FOUND DIM UPON INSPECTION. REMOVED AND REPLACED EXIT SIGN. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0100224](https://openairdocs.org/sdr/QXEA0100224.md): Sign · inoperative · Feb 24, 2001 · N494US · Fokker F28MK4000 · Emergency Lighting
  > BOI - EXIT SIGN IN PASSENGER COMPARTMENT HAS NUMEROUS BURNT OUT LAMPS. REMOVED AND REPLACED EXIT SIGN ASSEMBLY. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0100076](https://openairdocs.org/sdr/QXEA0100076.md): Light · inoperative · Jan 24, 2001 · N494US · Fokker F28MK4000 · Emergency Lighting
  > SEA- EMERGENCY EXIT LIGHT, FORWARD AND FORWARD FACING CENTER IS INOP. REMOVED AND REPLACED LIGHT ASSEMBLY. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0002878](https://openairdocs.org/sdr/QXEA0002878.md): Circuit Board · inoperative · Oct 15, 2000 · N494US · Fokker F28MK4000 · Emergency Lighting
  > SEA - EXIT SIGN ABOVE FLIGHT COMPARTMENT DOOR FOUND INOPERATIVE. REMOVED AND REPLACED CIRCUIT BOARD. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0002733](https://openairdocs.org/sdr/QXEA0002733.md): Power Supply · inoperative · Sep 28, 2000 · N494US · Fokker F28MK4000 · Emergency Lighting
  > SEA - OVERWING EXIT LIGHTS WILL NOT GO OUT WITH BATTERIES OFF. REMOVED AND REPLACED POWER SUPPLY. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0002483](https://openairdocs.org/sdr/QXEA0002483.md): Sign · inoperative · Aug 31, 2000 · N494US · Fokker F28MK4000 · Emergency Lighting
  > PDX - ROW 9E EVACUATION LIGHT FOUND INOPERATIVE. REMOVED AND REPLACED EXIT SIGN ASSEMBLY. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0001541](https://openairdocs.org/sdr/QXEA0001541.md): Receptacle · burned · Jun 14, 2000 · N494US · Fokker F28MK4000 · Buffet/Galleys
  > BIL- SMELL CENTERED AROUND FORWARD GALLEY NOTED. REPLACED NR 1 TOP COFFEE WARMER ELECTRICAL RECEPTICLE. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0001540](https://openairdocs.org/sdr/QXEA0001540.md): Coffeemaker · burned · Jun 14, 2000 · N494US · Fokker F28MK4000 · Buffet/Galleys
  > SEA- FLIGHT ATTENDANTS NOTICED SMELL IN GALLEY. BOTH THOUGHT IT SMELLED MORE LIKE AN ELECTRICAL SMELL THAN BURNING COFFEE. INSPECTED FORWARD GALLEY, NO DEFECTS NOTED. FOUND UPPER COFFEE JUG WITH BURNT COFFEE SMELL. REMOVED AND REPLACED HOT WATER AND COFFEE
- [SDR QXEA0001340](https://openairdocs.org/sdr/QXEA0001340.md): Unknown · odor · May 19, 2000 · N494US · Fokker F28MK4000 · Air Distribution System
  > SEA- STRONG PAINT/FUME SMELL IN COCKPIT ON DESCENT INTO SEATTLE. FLIGHT IDLE, CABIN ALTITUDE 4000 FEET, DIFFERENTIAL PRESSURE 4 PSI. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED NOSE BAY AREAS, NO DEFECTS NOTED. NO DEBRIS IN AIR CYCLE MACHINE AI
- [SDR QXEA0001156](https://openairdocs.org/sdr/QXEA0001156.md): Window Post · cracked · Apr 12, 2000 · N494US · Fokker F28MK4000 · Fuselage Miscellaneous Structure
  > PDX- TYPE D CRACK ON NR 3 WINDOW POST LT AFT VERTICAL FLANGE AT D5 ATTACHMENT HOLE. REPAIRED IAW HORIZON AIR EO 4-53-56.
- [SDR QXEA0001120](https://openairdocs.org/sdr/QXEA0001120.md): Skin · bent · Apr 12, 2000 · N494US · Fokker F28MK4000 · Nacelle/Pylon, Plate/Skin
  > PDX - NR 2 ENGINE NACELLE SKIN BENT AND RIVET PULLED THROUGH, BELOW STUBWING, AT FORWARD CORNER BY NOSE COWL. REPAIRED IAW FOKKER SRM 51-11-8 AND SRM 54-02-02, PAGE 2, FIGURE 1.
- [SDR QXEA0001076](https://openairdocs.org/sdr/QXEA0001076.md): Frame · cracked · Apr 12, 2000 · N494US · Fokker F28MK4000 · Fuselage Main, Frame
  > PDX - 1.4 INCH CRACK RADIATING FROM RIVET AT FRAME 16660 AND STRINGER 54. REPAIRED IAW FOKKER SRM 53-02-01, FIGURE 4.
- [SDR QXEA0001121](https://openairdocs.org/sdr/QXEA0001121.md): Hinge · worn · Apr 11, 2000 · N494US · Fokker F28MK4000 · Passenger/Crew Doors
  > PDX - MAIN CABIN DOOR HINGE IS WORN. REPAIRED IAW FOKKER SRM 52-10-01, PAGE 2B, STEPS 10 AND 11, SRM 51-31-01.
- [SDR QXEA0001093](https://openairdocs.org/sdr/QXEA0001093.md): Strap · chafed · Apr 11, 2000 · N494US · Fokker F28MK4000 · Wing Miscellaneous Structure
  > PDX - TWO CHAFED AREAS AT FORWARD END OF LT WING STRAP, LOCATED AT STATION 1700. REPAIRED IAW HORIZON AIR EA 4-57-400.
- [SDR QXEA0001073](https://openairdocs.org/sdr/QXEA0001073.md): Hinge · worn · Apr 11, 2000 · N494US · Fokker F28MK4000 · Passenger/Crew Doors
  > PDX - MAIN CABIN DOOR HINGE IS WORN. REPAIRED IAW FOKKER MM 52-10-01, PAGE 407, PARAGRAPH 4C.
- [SDR QXEA0001065](https://openairdocs.org/sdr/QXEA0001065.md): Hinge · gouged · Apr 11, 2000 · N494US · Fokker F28MK4000 · Passenger/Crew Doors
  > PDX - MAIN CABIN DOOR HINGE IS GOUGED AND WORN FROM DEBRIS BETWEEN DOOR HINGE LUGS. REPLACED HINGE.
- [SDR QXEA0001088](https://openairdocs.org/sdr/QXEA0001088.md): Skin · gouged · Apr 9, 2000 · N494US · Fokker F28MK4000 · Wing, Plate/Skin
  > PDX - LT WING NR 5 LIFT DUMPER HAS A QUARTER INCH GOUGE. REPAIRED IAW FOKKER SRM 51-70-0.
- [SDR QXEA0001087](https://openairdocs.org/sdr/QXEA0001087.md): Skin · dented · Apr 9, 2000 · N494US · Fokker F28MK4000 · Wing, Plate/Skin
  > PDX - LT WING NR 4 LIFT DUMPER HAS A DENT, TOP SIDE. REPAIRED IAW FOKKER SRM 51-70-0.
- [SDR QXEA0001081](https://openairdocs.org/sdr/QXEA0001081.md): Stringer · cracked · Apr 7, 2000 · N494US · Fokker F28MK4000 · Wing, Longeron/Stringer
  > PDX - LT WING STRINGER 2.13 CRACKED OUTBOARD OF RIB 4700. REPAIRED IAW HORIZON AIR EA 4-57-397.
- [SDR QXEA0001080](https://openairdocs.org/sdr/QXEA0001080.md): Angle · cracked · Apr 7, 2000 · N494US · Fokker F28MK4000 · Vertical Stabilizer
  > PDX - RT VERTICAL STABILIZER CONNECTION ANGLE HAS CRACKS OFF TWO HI-LOCKS. REPAIRED IAW HORIZON AIR EA 4-55-170 AND FOKKER SRM 51-31-02.
- [SDR QXEA0001051](https://openairdocs.org/sdr/QXEA0001051.md): Clip · cracked · Apr 7, 2000 · N494US · Fokker F28MK4000 · Fuselage Miscellaneous Structure
  > PDX - THERE ARE TWO CRACKS IN CLIP FRAME 15205 AND BELOW STRINGER 55. REPAIRED IAW FOKKER SRM 53-02-11, PAGES 1 THROUGH 3.
- [SDR QXEA0001078](https://openairdocs.org/sdr/QXEA0001078.md): Switch · chafed · Apr 6, 2000 · N494US · Fokker F28MK4000 · Horizontal Stabilizer Structure
  > PDX - LEADING EDGE 51C TEMP SWITCH IS CHAFING ON PREVIOUS REPAIR. REMOVED AND REPLACED DOUBLER IAW FOKKER SRM 51-31-01 AND HORIZON AIR EA 4-55-204.
- [SDR QXEA0001075](https://openairdocs.org/sdr/QXEA0001075.md): Frame · cracked · Apr 6, 2000 · N494US · Fokker F28MK4000 · Fuselage Main, Frame
  > PDX - CRACK IN CASTELLATION EXTENDING FROM BOTTOM RIVET AT FRAME 15205 AND STRINGER 46. REPAIRED IAW FOKKER SRM 53-02-13, PAGE 4, FIGURE 2.
- [SDR QXEA0001072](https://openairdocs.org/sdr/QXEA0001072.md): Frame · damaged · Apr 6, 2000 · N494US · Fokker F28MK4000 · Fuselage Main, Frame
  > PDX - FRAME 3820 & 3870 HAS INTERNAL TOOLING DAMAGE INSIDE LIGHTNING HOLE AT LOWEST CABLE PULLEY. REPAIRED IAW FOKKER SRM 53-10-01, PAGE 6, PARAGRAPH 4B4 AND SRM 51-10-4.
- [SDR QXEA0001071](https://openairdocs.org/sdr/QXEA0001071.md): Frame · chafed · Apr 6, 2000 · N494US · Fokker F28MK4000 · Fuselage Main, Frame
  > PDX - FRAME 4610 JUST LT OF TOP CENTER HAS CHAFING. REPAIRED IAW FOKKER SRM 53-01-01, PAGE 6, PARAGRAPH 4B4 AND SRM 51-10-4.
- [SDR QXEA0001068](https://openairdocs.org/sdr/QXEA0001068.md): Frame · cracked · Apr 6, 2000 · N494US · Fokker F28MK4000 · Fuselage Main, Frame
  > PDX - FRAME CASTELLATION AT STRINGER ATTACH POINT, RIVET IS CRACKED AT FRAME 13815A AND STRINGER 28. REPAIRED IAW FOKKER SRM 53-02-13, PAGE 4, FIGURE 2 AND SRM 51-30-02.
- [SDR QXEA0001042](https://openairdocs.org/sdr/QXEA0001042.md): Panel · cracked · Apr 6, 2000 · N494US · Fokker F28MK4000 · Fuselage Main, Plate/Skin
  > PDX - PANEL 21A HAS THREE CRACKS AT THE FORWARD INBOARD, LT CENTER EDGE. REPAIRED IAW HORIZON AIR EA 4-53-1114 AND FOKKER SRM 51-31-01.
- [SDR QXEA0001038](https://openairdocs.org/sdr/QXEA0001038.md): Angle · cracked · Apr 6, 2000 · N494US · Fokker F28MK4000 · Fuselage Miscellaneous Structure
  > PDX - CONNECTION ANGLE, BETWEEN FORWARD SIDE OF REAR PRESSURE BULKHEAD AND SHORT FLOORBEAM AT RBL 330 CRACKED. REPAIRED IAW HORIZON AIR EA 4-53-1128.
- [SDR QXEA0001035](https://openairdocs.org/sdr/QXEA0001035.md): Skin · damaged · Apr 6, 2000 · N494US · Fokker F28MK4000 · Fuselage Main, Plate/Skin
  > PDX - THE EXTERIOR FUSELAGE SKIN HAS IMPACT DAMAGE, FORWARD OF MAIN CABIN DOOR. APPROXIMATELY STATION 3300 AND WL 0. DEEPEST POINT OF DENT IS.095 AND.100 INCHES BETWEEN STRINGERS. DAMAGED AREA IS APPROXIMATELY 28 INCHES HIGH BY 6 INCHES WIDE. REPAIRED IA
- [SDR QXEA0001070](https://openairdocs.org/sdr/QXEA0001070.md): Skin · gouged · Apr 5, 2000 · N494US · Fokker F28MK4000 · Fuselage Main, Plate/Skin
  > PDX - EXTERIOR RT FUSELAGE SKIN GOUGED THROUGH PAINT BETWEEN FRAME 16060 AND 16660 AT STRINGER 48. REPAIRED IAW FOKKER SRM 51-10-4, PAGE 9, PARAGRAPH 3C.
- [SDR QXEA0001069](https://openairdocs.org/sdr/QXEA0001069.md): Frame · cracked · Apr 5, 2000 · N494US · Fokker F28MK4000 · Fuselage Main, Frame
  > PDX - FRAME CASTELLATION AT STRINGER ATTACH POINT, RIVET IS CRACKED AT FRAME 13815B AND STRINGER 28. REPAIRED IAW FOKKER SRM 53-02-13, PAGE 4, FIGURE 2, SRM 51-30-02 AND FOKKER MM 53-10-05, PAGE 601.
- [SDR QXEA0001067](https://openairdocs.org/sdr/QXEA0001067.md): Frame · cracked · Apr 5, 2000 · N494US · Fokker F28MK4000 · Fuselage Main, Frame
  > PDX - FRAME CASTELLATION AT STRINGER ATTACH POINT, RIVET IS CRACKED AT FRAME 13815A AND STRINGER 47. REPAIRED IAW FOKKER SRM 53-02-12, PAGE 4, FIGURE 2.
- [SDR QXEA0001040](https://openairdocs.org/sdr/QXEA0001040.md): Web · dented · Apr 5, 2000 · N494US · Fokker F28MK4000 · Fuselage Miscellaneous Structure
  > PDX - DENT IN ACM COMPARTMENT SIDEWALL NEAR ACM LOWER AFT MOUNT BRACKET. DAMAGE MEASURES.040 INCHES DEEP BY.950 INCHES WIDE. REPAIRED IAW HORIZON AIR EA 4-53-1113.
- [SDR QXEA0001005](https://openairdocs.org/sdr/QXEA0001005.md): Clip · cracked · Apr 5, 2000 · N494US · Fokker F28MK4000 · Fuselage Miscellaneous Structure
  > PDX - FRAME CLIP IS CRACKED AT FRAME 16660 AT STRINGER 51. REPAIRED IAW FOKKER SRM 53-02-13, PAGE 4, FIGURE 2, SRM 51-30-02 AND FOKKER MM 53-10-05, PAGE 601.
- [SDR QXEA0000995](https://openairdocs.org/sdr/QXEA0000995.md): Frame · cracked · Apr 5, 2000 · N494US · Fokker F28MK4000 · Fuselage Main, Frame
  > PDX - AFT CABIN FRAME 15205 AND STRINGER 46, CRACK IN CASTELLATION NEXT TO RIVET WITH WASHER. REPAIRED IAW FOKKER SRM 53-02-13, FIGURE 2.
- [SDR QXEA0001077](https://openairdocs.org/sdr/QXEA0001077.md): Skin · chafed · Apr 4, 2000 · N494US · Fokker F28MK4000 · Vertical Stabilizer, Plate/Skin
  > PDX - RT SIDE OF VERTICAL STABILIZER IS CHAFED WHERE HORIZONTAL STABILIZER ICE SCRAPER MOVES. REPAIRED IAW HORIZON AIR EA 4-55-72.
- [SDR QXEA0001074](https://openairdocs.org/sdr/QXEA0001074.md): Frame · cracked · Apr 3, 2000 · N494US · Fokker F28MK4000 · Fuselage Main, Frame
  > PDX - FRAME CASTELLATION AT STRINGER ATTACH POINT, RIVET IS CRACKED AT FRAME 14755 AND STRINGER 46. REPAIRED IAW FOKKER SRM 53-02-13, PAGE 4, FIGURE 2 AND SRM 51-31-01.

Next page: https://openairdocs.org/deregistered/N494US-2007-04-26/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 = 'N494US' AND deregistration_id = 'N494US-2007-04-26'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/deregistered/N494US-2007-04-26/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.