# N491US: 1980 Fokker F.28 MK4000, registration cancelled 2006-02-15

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: February 15, 2006
- Exported to: South Africa
- Status when cancelled: Valid registration
- Airframe: [Fokker F.28 MK4000](https://openairdocs.org/model/fokker-f-28-mk4000) (registry code 4990810)
- Serial number: 11156
- Year built: 1980
- Type of aircraft: Fixed wing multi engine
- Certificate issued: August 29, 2005
- Last registry action: August 29, 2005
- Mode S code: A615A2
- Owner when cancelled: [Wells Fargo Bank Northwest Na Trustee](https://openairdocs.org/faa-owner/WELLS%20FARGO%20BANK%20NORTHWEST%20NA%20TRUSTEE)
- Location: [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City)
- Owner type: Corporation
- Owner's area on the map: 40.7558° N, 111.8843° W: Placed by OpenAirDocs at the center of ZIP code 84111, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N491US
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=491US
- Page: https://openairdocs.org/deregistered/N491US-2006-02-15

From the FAA registry file of October 31, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Fokker F.28 MK4000: https://openairdocs.org/model/fokker-f-28-mk4000.md

## Service difficulty reports (419, newest 50)

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

- [SDR QXEA0201337](https://openairdocs.org/sdr/QXEA0201337), Sep 2, 2002: BATTERY PACK. INOPERATIVE. PDX- EVACUATION LIGHTS ON SEATS 12,13, AND 14AB ARE INOPERATIVE. REMOVED AND REPLACED EVACUATION BATTERY PACK. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SER
- [SDR QXEA0201335](https://openairdocs.org/sdr/QXEA0201335), Aug 31, 2002: BATTERY. DEFECTIVE. PDX- GREEN EXIT AND EVACUATION LIGHTS AT MAIN CABIN DOOR AND GALLEY SERVICE DOOR ILLUMINATE WITH EMERGENCY LIGHT SWITCH IN OFF POSITION AND EXIT AIRCRAFT SWITCH
- [SDR QXEA0200960](https://openairdocs.org/sdr/QXEA0200960), Jul 20, 2002: CIRCUIT CARD. INOPERATIVE. SEA-EMERGENCY EXIT SIGN HAS BULBS INOPERATIVE, CENTER OVERHEAD. REPLACED EMERGENCY EXIT SIGN CIRCUIT CARD. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICES
- [SDR QXEA0200923](https://openairdocs.org/sdr/QXEA0200923), Jun 28, 2002: SIGN. INOPERATIVE. BOI- CABIN EXIT SIGN HAS SEVERAL LAMPS INOPERATIVE. REMOVED AND REPLACED EXIT SIGN. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0200920](https://openairdocs.org/sdr/QXEA0200920), Jun 28, 2002: SWITCH. INOPERATIVE. BOI - ON APPROACH AND AFTER GEAR EXTENSION, THE LEFT MAIN DOOR AMBER LIGHT REMAINED ILLUMINATED. THE APPROACH WAS ABORTED AND THE ALTERNATE GEAR EXTENSION WAS U
- [SDR QXEA0200831](https://openairdocs.org/sdr/QXEA0200831), May 20, 2002: SIGN. INOPERATIVE. BOI- COCKPIT ENTRANCE OVERHEAD EMERGENCY EXIT SIGN INOP. REMOVED AND REPLACED EXIT SIGN. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0200531](https://openairdocs.org/sdr/QXEA0200531), Mar 30, 2002: POWER SUPPLY. INOPERATIVE. PDX- LEFT HAND EMERGENCY DOOR LIGHTS INOPERATIVE. REMOVED AND REPLACED BATTERY POWER SUPPLY. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0200507](https://openairdocs.org/sdr/QXEA0200507), Mar 22, 2002: SIGN. DEFECTIVE. BOI- DIM EXIT LIGHT MID CABIN FACING FORWARD. REPLACED EXIT SIGN. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0102134](https://openairdocs.org/sdr/QXEA0102134), Dec 24, 2001: SIGN. INOPERATIVE. PDX- SEVERAL 28 VOLT LAMPS FAIL TO ILLUMINATE IN AFT CENTER CABIN EXIT SIGN. REMOVED AND REPLACED EXIT SIGN. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVI
- [SDR QXEA0101699](https://openairdocs.org/sdr/QXEA0101699), Oct 26, 2001: SIGN. INOPERATIVE. BOI - EXIT SIGN AT PASSENGER COMPARTMENT LINTEL HAS NO EMERGENCY LIGHTS WORKING. REPLACED EXIT SIGN ASSEMBLY. OPERATIONAL CHECK IS GOOD. AIRCRAFT RETURNED TO SE
- [SDR QXEA0101601](https://openairdocs.org/sdr/QXEA0101601), Sep 29, 2001: SIGN. INOPERATIVE. PDX - EXIT SIGN OVER COCKPIT DOOR HAS NUMEROUS BULBS BURNED OUT. REMOVED AND REPLACED EXIT SIGN. OPERATIONAL CHECK IS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0101590](https://openairdocs.org/sdr/QXEA0101590), Sep 22, 2001: LIGHT. INOPERATIVE. BOI - EMERGENCY EXIT LIGHT PANEL ABOVE ROW 8 IS INOPERABLE. REMOVED AND REPLACED EXIT LIGHT PANEL. OPERATIONAL CHECK IS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0101521](https://openairdocs.org/sdr/QXEA0101521), Sep 22, 2001: LIGHT. INOPERATIVE. BOI - EMERGENCY EXIT LIGHT PANEL ABOVE ROW 8 IS INOPERABLE. REMOVED AND REPLACED EMERGENCY EXIT LIGHT PANEL. OPERATIONAL CHECK IS GOOD AND AIRCRAFT RETURNED FOR
- [SDR QXEA0101513](https://openairdocs.org/sdr/QXEA0101513), Sep 13, 2001: POWER SUPPLY. INOPERATIVE. PDX - NUMBER 6 CABIN BATTERY PACK IS WEAK. REMOVED AND REPLACED BATTERY PACK. OPERATIONAL CHECK IS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0101512](https://openairdocs.org/sdr/QXEA0101512), Sep 13, 2001: POWER SUPPLY. INOPERATIVE. PDX - NUMBER 5 CABIN BATTERY PACK IS WEAK. REMOVED AND REPLACED BATTERY PACK. OPERATIONAL CHECK IS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0101511](https://openairdocs.org/sdr/QXEA0101511), Sep 13, 2001: POWER SUPPLY. DISCHARGED. PDX - NUMBER 4 CABIN EMERGENCY BATTERY PACK IS WEAK. REMOVED AND REPLACED BATTERY PACK. OPERATIONAL CHECK IS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0101485](https://openairdocs.org/sdr/QXEA0101485), Sep 3, 2001: CLIP. CORRODED. PDX- CORROSION FOUND ON CLIPS AT LOWER END OF NR 2, NR 3 NR 4 RIBS ON INBOARD WALL OF LEFT SIDE OF COLLECTOR FUEL TANK. REMOVED CORROSION AND REPLACED HI LOCKS 
- [SDR QXEA0101477](https://openairdocs.org/sdr/QXEA0101477), Aug 31, 2001: STRINGER. BENT. PDX - STRINGER 17 IS BENT ON FORWARD SIDE OF FRAME 2220 STRINGER TIE AND STRINGER. REPAIRED IAW SRM 53-02-01 AND SRM 51-30-02.
- [SDR QXEA0101476](https://openairdocs.org/sdr/QXEA0101476), Aug 31, 2001: STRINGER. DAMAGED. PCDX - STRINGER 20 AT FRAME 2220 HAS DAMAGE AT END OF STRINGER. REPAIRED DAMAGE IAW F28 SRM 53-02-08 PAGE 6.
- [SDR QXEA0101484](https://openairdocs.org/sdr/QXEA0101484), Aug 29, 2001: FRAME. CRACKED. PDX - FRAME CASTELLATION CRACKED ON FRAME 1285 BETWEEN STRINGERS 17 AND 18. REMOVED DAMAGED AREA AND REPAIRED PER F28 SRM 53-02-13.
- [SDR QXEA0101483](https://openairdocs.org/sdr/QXEA0101483), Aug 29, 2001: STRINGER. DAMAGED. PDX - STRINGER 19 DAMAGED BETWEEN FRAME 1600 AND FRAME 1890. REMOVED DAMAGED SECTION OF STRINGER AND REPAIRED IAW F28 SRM 53-02-05.
- [SDR QXEA0101482](https://openairdocs.org/sdr/QXEA0101482), Aug 29, 2001: SHEAR TIE. DAMAGED. PDX - STRINGER TIE AT FRAME 2220 AND STRINGER 18 IS DAMAGED. REMOVED AND REPLACED STRINGER TIES IAW F28 SRM 53-02-05.
- [SDR QXEA0101480](https://openairdocs.org/sdr/QXEA0101480), Aug 29, 2001: SKIN. DAMAGED. PDX - SKIN DAMAGE BETWEEN FRAME 1600 AND 2200 AND STRINGERS 18 AND 21A. REPAIRED IAW F28 SRM 53-02-08, 51-31-01, AND 53-12-02.
- [SDR QXEA0101479](https://openairdocs.org/sdr/QXEA0101479), Aug 29, 2001: STRINGER. DAMAGED. PDX - STRINGER 21A IS DAMAGED BETWEEN FRAME 1890 AND 2220. REPAIRED STRINGER 21A IAW F-28 SRM 53-02-05.
- [SDR QXEA0101478](https://openairdocs.org/sdr/QXEA0101478), Aug 29, 2001: STRINGER. DAMAGED. PDX - STRINGER 20 IS DAMAGED BETWEEN FRAME 1600 AND FRAME 1890. REMOVED DAMAGED PORTION OF STRINGER AND REPAIRED IAW F28 SRM 53-02-05.
- [SDR QXEA0101481](https://openairdocs.org/sdr/QXEA0101481), Aug 28, 2001: FASTENER. DAMAGED. PDX - SUSPECTED FUEL LEAK FROM TWO HI-LOKS BY COLLECTOR TANK. REMOVED AND REPLACED TWO HI-LOKS AND REPAIRED IAW F28 SRM 51-30-02.
- [SDR QXEA0101475](https://openairdocs.org/sdr/QXEA0101475), Aug 28, 2001: STRUCTURE. LEAKING. PDX -FUEL LEAKING FROM HI LOCK, BOTTOM OF LEFT WING 13 INCHES FORWARD OF LEFT LANDING GEAR FORWARD TRUNNION. REMOVED AND REPLACED HI LOCKS AND SEALED SAME IAW F
- [SDR QXEA0101474](https://openairdocs.org/sdr/QXEA0101474), Aug 28, 2001: SKIN. DAMAGED. PDX - THE REPAIR DOUBLER FOR THE REPAIR AT FRAME 2220 AND STRINGER 18 EXCEEDS 20 PERCENT OF SKIN PANEL. REPLACED SKIN PANEL AND STRINGER ASSEMBLY IAW F-28 SRM 5
- [SDR QXEA0101473](https://openairdocs.org/sdr/QXEA0101473), Aug 27, 2001: SKIN. DAMAGED. PDX - FRAME 2220 LEFT BETWEEN STRINGERS 53 AND 57 HAS A TEMPORARY REPAIR. REPLACED SKIN AND STRINGER ASSEMBLY IAW F28 SRM 51-31-01
- [SDR QXEA0101070](https://openairdocs.org/sdr/QXEA0101070), Jun 26, 2001: SIGN. INOPERATIVE. BOI - MID CABIN OVERHEAD EXIT SIGN REPORTED INOPERATIVE. REMOVED AND REPLACED EXIT SIGN. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0100704](https://openairdocs.org/sdr/QXEA0100704), May 12, 2001: STRINGER. CRACKED. PDX - UPON INSPECTION, FOUND STRINGER INBOARD OF THE AIR CYCLE MACHINE INLET CRACKED. REPAIRED IN ACCORDANCE WITH FOKKER STRUCTERAL REPAIR MANUAL. COMPLIED WITH
- [SDR QXEA0100495](https://openairdocs.org/sdr/QXEA0100495), Apr 17, 2001: SMOKE WARNING. FALSE ACTIVATION. SEA - FLIGHT CREW REPORTED INTERMITTENT SMOKE DETECTION AURAL WARNING EMINATING FROM CARGO COMPARTMENT. NO DEFECTS WERE FOUND UPON INSPECTION. AIRCRAFT RETURNED
- [SDR QXEA0100427](https://openairdocs.org/sdr/QXEA0100427), Mar 26, 2001: SIGN. INOPERATIVE. BOI - MID CABIN EXIT SIGN REPORTED TO HAVE INOPERATIVE LAMPS. REMOVED AND REPLACED EXIT SIGN. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0100095](https://openairdocs.org/sdr/QXEA0100095), Feb 4, 2001: CIRCUIT BOARD. INOPERATIVE. SEA- NR 1 AND NR 2 OVERHEAD EMERGENCY EXIT SIGNS HAVE INOPERATIVE BULBS. REPLACED NR 1 AND NR 2 EXIT SIGN CIRCUIT BOARDS. OPERATIONAL CHECK GOOD. AIRCRAFT RETUR
- [SDR QXEA0100001](https://openairdocs.org/sdr/QXEA0100001), Jan 1, 2001: SIGN. INOPERATIVE. GEG - THE FORWARD CENTER ISLE EXIT SIGN WAS FOUND INOPERATIVE. REMOVED AND REPLACED EXIT SIGN. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0003352](https://openairdocs.org/sdr/QXEA0003352), Dec 20, 2000: SIGN. INOPERATIVE. SEA - MID CABIN OVERHEAD EXIT SIGN FOUND TO HAVE INOPERATIVE LAMPS. REMOVED AND REPLACED EXIT SIGN ASSEMBLY. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVI
- [SDR QXEA0003087](https://openairdocs.org/sdr/QXEA0003087), Nov 25, 2000: POWER SUPPLY. INOPERATIVE. BOI- SEVERAL EVACUATION LIGHTS IN ENTRYWAY INOPERATIVE. REMOVED AND REPLACED POWER SUPPLY BATTERY, OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0002944](https://openairdocs.org/sdr/QXEA0002944), Nov 5, 2000: LIGHT. BROKEN. BOI - SEAT PATH LIGHT ON SEAT 8AB FOUND BROKEN. REMOVED AND REPLACED SEAT PATH LIGHT ASSEMBLY, OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0002002](https://openairdocs.org/sdr/QXEA0002002), Jul 22, 2000: LATCH. LACK OF LUBE. BOI - MAIN CABIN DOOR EXTREMELY DIFFICULT TO MOVE FROM LOCKED TO OPEN POSITION. LUBED MAIN CABIN DOOR PINS AND LATCH MECHANISM. OPERATIONAL CHECKS GOOD. AIRCRAF
- [SDR QXEA0002001](https://openairdocs.org/sdr/QXEA0002001), Jul 22, 2000: DOOR. LACK OF LUBE. BOI - FLIGHT ATTENDENT ADVISED CREW THAT MAIN CABIN DOOR WAS DIFFICULT TO MOVE TO OPEN POSITION. CLEANED AND LUBED MAIN CABIN DOOR SEAL. OPERATIONAL CHECKS GOOD
- [SDR QXEA0002003](https://openairdocs.org/sdr/QXEA0002003), Jul 20, 2000: CIRCUIT BOARD. FAILED. PDX - EMERGENCY EXIT SIGN ABOVE MAIN CABIN DOOR ENTRANCE FOUND INOPERATIVE. REMOVED AND REPLACED CIRCUIT BOARD, OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SE
- [SDR QXEA0002012](https://openairdocs.org/sdr/QXEA0002012), Jul 18, 2000: DOOR. OUT OF ADJ. MAIN CABIN DOOR IS NOT FLUSH WITH SKIN WHEN CLOSED. REPAIRED IAW FOKKER SRM 51-50-0, PAGE 19.
- [SDR QXEA0002010](https://openairdocs.org/sdr/QXEA0002010), Jul 15, 2000: SKIN. DAMAGED. PDX- AFT CARGO DOOR INNER SKIN DOUBLER DAMAGED NEAR BOTH HOOK LATCHES. REPAIRED IAW FOKKER SRM 51-31-05, SRM 51-10-4, AND SRM 52-30-00.
- [SDR QXEA0002025](https://openairdocs.org/sdr/QXEA0002025), Jul 14, 2000: PANEL. CORRODED. PDX- RIGHT HAND WING INSIDE PANEL 72A JUST INBOARD CROSS BRACE AT BOTTOM HAS CORROSION IN CHANNEL. REPAIRED IAW FOKKER SRM 57-01-01, PAGE 5, AND SRM 51-30-02.
- [SDR QXEA0001978](https://openairdocs.org/sdr/QXEA0001978), Jul 14, 2000: PANEL. CRACKED. PDX- CRACKS IN FASTENER HOLES ON PANEL 53N. REPAIRED IAW HORIZON AIR EA 4-55-240.
- [SDR QXEA0002014](https://openairdocs.org/sdr/QXEA0002014), Jul 13, 2000: PANEL. CORRODED. PDX- CORROSION AROUND PANEL 56F. REPAIRED IAW FOKKER SRM 55-01-01, PAGE 4.
- [SDR QXEA0002013](https://openairdocs.org/sdr/QXEA0002013), Jul 13, 2000: PANEL. CORRODED. PDX- CORROSION AROUND PANEL 56F APERTURE. REPAIRED IAW FOKKER SRM 55-01-01, PAGE 4.
- [SDR QXEA0001953](https://openairdocs.org/sdr/QXEA0001953), Jul 12, 2000: FRAME. BENT. PDX- RIGHT HAND AIR CYCLE MACHINE COMPARTMENT FORWARD RIGHT HAND CORNER NOSE LANDING GEAR SIDEWALL FRAME FLANGE BENT SEVERAL PLACES. REPAIRED IAW HORIZON AIR EA
- [SDR QXEA0001931](https://openairdocs.org/sdr/QXEA0001931), Jul 12, 2000: SKIN. BULGED. PDX- BULGE IN SKIN FORWARD PRESSURE BULKHEAD AFT SIDE OF FRAME 15506. REPAIRED IAW FOKKER SRM 53-02-18 AND HORIZON AIR EA 4-53-1273.
- [SDR QXEA0002042](https://openairdocs.org/sdr/QXEA0002042), Jul 10, 2000: ACTUATOR. MISINSTALLED. PDX- UNABLE TO INSTALL STEEL WASHER BETWEEN OUTBOARD SIDE OF BEARING IN THE AILERON ACTUATOR HOUSING AND AILERON HINGE BRACKET DUE TO INSUFFICIANT CLEARANCE. RE

All 419: https://openairdocs.org/deregistered/N491US-2006-02-15/reports.md

## FAA accident and incident reports (2)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Incident 19990701022179I](https://openairdocs.org/incident/19990701022179I), Jul 1, 1999: Fokker F28MK4000 (N491US), Fresno, CA. (From -23) on 07-01-1999, at approx. 0730 am PDT, F-28 MK4000, N491US, qxea-operated flight 2188 departed fat to sea tec. When climbing after take off, utility…
- [Incident 19980308018179I](https://openairdocs.org/incident/19980308018179I), Mar 8, 1998: Fokker F28MK4000 (N491US), Portland, OR. Mmel per MEL caused fuel imbalance. Returned. Revised MEL procedures and ops.

---
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.