# N479AU: 1985 Fokker F.28 MK4000, registration cancelled 2004-02-27 - Type: Cancelled registration (FAA registry, deregistered aircraft) - Cancelled: February 27, 2004 - Exported to: Ecuador - Status when cancelled: Valid registration - Airframe: [Fokker F.28 MK4000](https://openairdocs.org/model/fokker-f-28-mk4000) (registry code 4990810) - Serial number: 11228 - Year built: 1985 - Type of aircraft: Fixed wing multi engine - Certificate issued: October 24, 2003 - Last registry action: October 24, 2003 - Mode S code: A5E29C - Owner when cancelled: [Amtering Air Inc](https://openairdocs.org/faa-owner/AMTERING%20AIR%20INC) - Location: [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington) - Owner type: Corporation - Owner's area on the map: 39.7236° N, 75.5412° W: Placed by OpenAirDocs at the center of ZIP code 19801, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based - The mark today: https://openairdocs.org/aircraft/N479AU - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=479AU - Page: https://openairdocs.org/deregistered/N479AU-2004-02-27 From the FAA registry file of November 5, 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 (341, newest 50) Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. - [SDR QXEA0202201](https://openairdocs.org/sdr/QXEA0202201), Dec 17, 2002: BATTERY. DISCHARGED. PDX-AFT 3 CEILING EVACUATION LIGHTS INOPERATIVE. REMOVED AND REPLACED BATTERY POWER SUPPLY. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. - [SDR QXEA0202081](https://openairdocs.org/sdr/QXEA0202081), Dec 1, 2002: SIGN. INOPERATIVE. PDX- FORWARD OVERHEAD EMERGENCY EXIT SIGN AT SEAT ROW 8 HAS NUMEROUS BULBS OUT. REMOVED AND REPLACED EXIT SIGN. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SE - [SDR QXEA0201594](https://openairdocs.org/sdr/QXEA0201594), Oct 3, 2002: WIRE. BROKEN. PDX- AISLE EMERGENCY LIGHT ON SEAT 11B WILL NOT COME ON. REPAIRED BROKEN WIRE IAW FOKKER SRM 33-52-01. - [SDR QXEA0201490](https://openairdocs.org/sdr/QXEA0201490), Sep 25, 2002: SIGN. INOPERATIVE. PDX-FORWARD EXIT SIGN HAS SEVERAL LIGHTS OUT. REMOVED AND REPLACED EXIT SIGN. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. - [SDR QXEA0201389](https://openairdocs.org/sdr/QXEA0201389), Sep 5, 2002: CONTROL UNIT. MALFUNCTIONED. BOI- WHEN ATTEMPTING TO HOOK UP GROUND POWER SMOKE APPEARED FROM RIGHT PANEL BEHIND FIRST OFFICER. REMOVED AND REPLACED EXTERNAL GROUND POWER CONTROL UNIT. OPER - [SDR QXEA0201097](https://openairdocs.org/sdr/QXEA0201097), Jul 27, 2002: SIGN. INOPERATIVE. BOI- EXIT SIGN AT PASSENGER CABIN LINTEL HAS SEVERAL LAMPS INOPERATIVE. REPLACED EXIT SIGN. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. - [SDR QXEA0200908](https://openairdocs.org/sdr/QXEA0200908), Jun 26, 2002: SIGN. INOPERATIVE. SEA-FLIGHT ATTENDANT REPORTS FORWARD EXIT SIGN ONLY WORKS INTERMMITANTLY, MOST OF THE TIME IT IS OFF. REPLACED FORWARD EXIT SIGN. OPERATIONAL CHECK GOOD. AIRCRA - [SDR QXEA0200504](https://openairdocs.org/sdr/QXEA0200504), Mar 19, 2002: SIGN. INOPERATIVE. BOI- BOTH EXIT SIGNS AT MID CABIN POSITION HAVE BURNED OUT BULBS. REPLACED BOTH EXIT SIGNS. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. - [SDR QXEA0102141](https://openairdocs.org/sdr/QXEA0102141), Dec 31, 2001: BATTERY. DISCHARGED. PDX - EVACUATION LIGHTS ON EXIT SIGN IN PASSENGER COMPARTMENT COME ON DIM AND THEN GO OFF AFTER ONE TO TWO MINUTES. REPLACED BATTERY POWER SUPPLY. OPERATIONAL C - [SDR QXEA0101785](https://openairdocs.org/sdr/QXEA0101785), Nov 12, 2001: LIGHT. DEFECTIVE. PDX - THE NUMBER TWO OVERHEAD EVACUATION LIGHT IS DIM AND UNREADABLE. REMOVED AND REPLACED LAMP ASSEMBLY. OPERATIONAL CHECK IS GOOD. AIRCRAFT RETURNED TO SERVIC - [SDR QXEA0101782](https://openairdocs.org/sdr/QXEA0101782), Nov 9, 2001: POWER SUPPLY. DISCHARGED. PDX- NR 6 OVERHEAD EVACUATION LIGHT AND CABIN CEILING EXIT SIGN INOPERATIVE. REMOVED AND REPLACED BATTERY POWER SUPPLY RIGHT HAND NR 3. OPERATIONAL CHECKS GOOD. - [SDR QXEA0101616](https://openairdocs.org/sdr/QXEA0101616), Oct 8, 2001: LIGHT. INOPERATIVE. BOI - EMERGENCY EXIT LIGHT IN GALLEY DOOR DOES NOT LIGHT UP. REMOVED AND REPLACED EXIT LIGHT ASSEMBLY. OPERATIONAL CHECK IS GOOD. AIRCRAFT RETURNED TO SERVICE. - [SDR QXEA0101419](https://openairdocs.org/sdr/QXEA0101419), Aug 29, 2001: FIRE LOOP. SHORTED. BIL - ENROUTE FROM BIL TO SEA THE NR 2 FIRE WARNING SOUNDED AND LIGHT UP. PERFORMED ENGINE FIRE CHECK LIST, SHUTING DOWN NR 2 ENGINE. AFTER PULLING THE FIRE CON - [SDR QXEA0101412](https://openairdocs.org/sdr/QXEA0101412), Aug 24, 2001: CIRCUIT BOARD. INOPERATIVE. PDX - EMERGENCY EXIT SIGN ABOVE THE FOREWARD GALLEY LINTEL HAS SEVERAL BULBS THAT DID NOT ILLUMINATE. REPLACED LIGHT CARD ON EXIT SIGN ABOVE FORWARD GALLEY LINT - [SDR QXEA0101359](https://openairdocs.org/sdr/QXEA0101359), Aug 19, 2001: CIRCUIT BOARD. INOPERATIVE. GEG - ROW EIGHT EMERGENCY EXIT SIGNS HAVE INOPERABLE BULBS. REMOVED AND REPLACED CIRCUIT BOARDS. OPERATIONAL CHECK IS GOOD. AIRCRAFT RETURNED TO SERVICE. - [SDR QXEA0101058](https://openairdocs.org/sdr/QXEA0101058), Jun 18, 2001: SIGN. INOPERATIVE. GEG - EXIT SIGN ABOVE FLIGHT COMPARTMENT DOOR INOPERATIVE. REMOVED AND REPLACED EXIT SIGN. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE. - [SDR QXEA0100906](https://openairdocs.org/sdr/QXEA0100906), Jun 6, 2001: SIGN. INOPERATIVE. BOI- FORWARD CABIN EMERGENCY EXIT LIGHT OUT. REMOVED AND REPLACED EXIT SIGN ASSY. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE. - [SDR QXEA0100792](https://openairdocs.org/sdr/QXEA0100792), May 25, 2001: CIRCUIT BOARD. DEFECTIVE. GEG - CENTER AISLE EXIT SIGN LIGHTS FOUND INOPERATIVE. REMOVED AND REPLACED CIRCUIT BOARD. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE. - [SDR QXEA0100774](https://openairdocs.org/sdr/QXEA0100774), May 18, 2001: SIGN. LOOSE. SEA - EXIT SIGN ON SEAT 9A WAS FOUND LOOSE. REMOVED AND REPLACED EXIT SIGN. OPERTAIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE. - [SDR QXEA0100283](https://openairdocs.org/sdr/QXEA0100283), Mar 16, 2001: SIGN. INOPERATIVE. BOI-EXIT SIGN ABOVE COCKPIT DOOR 28V LIGHTS INOPERATIVE. REPLACED EXIT SIGN ABOVE COCKPIT DOOR. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. - [SDR QXEA0100123](https://openairdocs.org/sdr/QXEA0100123), Feb 19, 2001: CIRCUIT BOARD. FAULTY. SEA - FORWARD CABIN EXIT SIGN FOUND INOPERATIVE. REMOVED AND REPLACED EXIT SIGN CIRCUIT BOARD. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE. - [SDR QXEA0003354](https://openairdocs.org/sdr/QXEA0003354), Dec 24, 2000: SIGN. INOPERATIVE. GEG-EMERGENCY EXIT SIGN INOPERATIVE AT ROW 8 AND 9. REPLACED SIGNS. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. - [SDR QXEA0003185](https://openairdocs.org/sdr/QXEA0003185), Dec 5, 2000: POWER SUPPLY. DISCHARGED. FOUND CABIN OVERHEAD EVACUATION LIGHTS INOPERATIVE. REMOVED AND REPLACED BATTERY POWER SUPPLY. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. - [SDR QXEA0002946](https://openairdocs.org/sdr/QXEA0002946), Nov 9, 2000: CIRCUIT BOARD. FAILED. PDX - EMERGENCY EXIT SIGN OVER FLIGHT COMPARTMENT DOOR FOUND INOPERATIVE. REMOVED AND REPLACED EXIT SIGN CIRCUIT BOARD. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURN - [SDR QXEA0002588](https://openairdocs.org/sdr/QXEA0002588), Sep 19, 2000: RECEIVER. ODOR. PDX - A BURNING ELECTRICAL SMELL WAS REPORTED EMANATING FROM THE AVIONICS BAY. FOUND TO BE THE NR 2 DISTANCE MEASURING DEVICE RECEIVER. DEACTIVATED SYSTEM. REPL - [SDR QXEA0002493](https://openairdocs.org/sdr/QXEA0002493), Sep 5, 2000: CIRCUIT BOARD. INOPERATIVE. BOI- CEILING EMERGENCY EXIT SIGNS ABOVE ROW 8, FORWARD AND ADT FACING, INOPERATIVE. REMOVED AND REPLACED BOTH EXIT SIGN CIRCUIT BOARDS. LIGHTS CHECK GOOD. AIRCR - [SDR QXEA0002492](https://openairdocs.org/sdr/QXEA0002492), Sep 5, 2000: CIRCUIT BOARD. INOPERATIVE. BOI- EMERGENCY EXIT SIGN ABOVE COCKPIT DOOR INOPERATIVE. REMOVED AND REPLACED EXIT SIGN CIRCUIT BOARD ASSY. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE - [SDR QXEA0002406](https://openairdocs.org/sdr/QXEA0002406), Aug 29, 2000: ANGLE. CRACKED. PDX- CRACKED SUPPORT ANGLE FOR RIGHT HAND FUSELAGE FAIRING PANEL 92G. REPAIRED IAW HORIZON AIR EA 4-57-459. - [SDR QXEA0002397](https://openairdocs.org/sdr/QXEA0002397), Aug 28, 2000: SKIN. DAMAGED. PDX- ROW OF RIVETS PULLED THROUGH SKIN AT TOP END OF LEFT HAND NUMBER 2 INTERMEDIATE SPAR OF VERTICAL STABILIZER. REPAIRED IAW FOKKER SRM 51-31-01 AND HORIZON A - [SDR QXEA0002396](https://openairdocs.org/sdr/QXEA0002396), Aug 28, 2000: SKIN. DAMAGED. PDX- ROW OF RIVETS PULLED THROUGH SKIN AT TOP END OF RIGHT HAND NUMBER 2 INTERMEDIATE SPAR OF VERTICAL STABILIZER. REPAIRED IAW FOKKER SRM 51-31-01 AND HORIZON - [SDR QXEA0002465](https://openairdocs.org/sdr/QXEA0002465), Aug 28, 2000: STRUCTURE. CORRODED. PDX- THERE IS CORROSION AROUND A SCREW HOLE ON LOWER SIDE OF SPAR WEB AT STATION 6805, JUST INBOARD OF SEAT TRACK FLOORBEAM AT BL 600 RIGHT HAND. REPAIRED IAW F - [SDR QXEA0002423](https://openairdocs.org/sdr/QXEA0002423), Aug 27, 2000: CLIP. CRACKED. PDX- CLIP CRACKED PAST STOP DRILL, FORWARD SIDE FRAME 67-2 AND STRINGER 29. REPAIRED IAW FOKKER SRM 53-10-05 AND HORIZON AIR EA 4-53-1329. - [SDR QXEA0002412](https://openairdocs.org/sdr/QXEA0002412), Aug 27, 2000: SKIN. CORRODED. PDX- AFT DME ANTENNA MOUNT STRUCTURE INTERNAL REINFORCEMENT SKIN HAS CORROSION WHERE PAINT IS MISSING. REPAIRED IAW FOKKER SRM 53-24-01 AND SRM 53-00-00. - [SDR QXEA0002403](https://openairdocs.org/sdr/QXEA0002403), Aug 27, 2000: PANEL. CORRODED. PDX- LEFT HAND FUEL PANEL APERTURE HAS FILLET PEELING/FLAKING OFF AT PANEL 71A. REPAIRED IAW HORIZON AIR EA 4-57-188A. - [SDR QXEA0002472](https://openairdocs.org/sdr/QXEA0002472), Aug 26, 2000: FRAME. CRACKED. PDX- ON AFT SIDE OF FRAME 15635 AT 11:00 O''CLOCK POSITION LOOKING FORWARD AT STRINGER 39, TOP RIVET HAS SEVERAL CRACKS PROTRUDING FROM RIVET HOLE. REPAIRED IAW - [SDR QXEA0002471](https://openairdocs.org/sdr/QXEA0002471), Aug 26, 2000: CLIP. CRACKED. PDX- CRACKED FRAME CLIP AT FRAME 16060 AND STRINGER 74. REPAIRED IAW FOKKER SRM 51-31-01. - [SDR QXEA0002470](https://openairdocs.org/sdr/QXEA0002470), Aug 26, 2000: CLIP. MISINSTALLED. PDX- FRAME CLIP AT STRINGER 1 FRAME 16660 HAS 4 RIVETS THAT ARE NOT PROPERLY DRIVEN. REPAIRED IAW FOKKER SRM 51-31-01. - [SDR QXEA0002482](https://openairdocs.org/sdr/QXEA0002482), Aug 25, 2000: FRAME. CORRODED. PDX- CASTELLATION OF FRAME 16660 AT STRINGER 1 HAS CORROSION. REPAIRED IAW FOKKER SRM 53-01-01. - [SDR QXEA0002481](https://openairdocs.org/sdr/QXEA0002481), Aug 25, 2000: ANGLE. CORRODED. PDX- CORROSION FOUND AT MOST AFT NUT PLATE ON GILLINER SUPPORT AT STATION 19050 ABOVE STRINGER 74. REPAIRED IAW FOKKER SRM 51-10-4, PAGE 9. - [SDR QXEA0002467](https://openairdocs.org/sdr/QXEA0002467), Aug 25, 2000: SKIN. GOUGED. PDX- THERE ARE TWO GOUGES AND DENTS IN EXTERIOR SKIN AT FORWARD SIDE OF AFT CARGO DOOR APERTURE AT STRINGER 66 AND 67. REPAIRED IAW HORIZON AIR EA 4-53-1325. - [SDR QXEA0002462](https://openairdocs.org/sdr/QXEA0002462), Aug 25, 2000: FRAME. CORRODED. PDX- CASTELLATION OF FRAME 16060 AT STRINGER 74 HAS CORROSION. REPAIRED IAW FOKKER SRM 53-01-01 AND SRM 53-02-13. - [SDR QXEA0002458](https://openairdocs.org/sdr/QXEA0002458), Aug 25, 2000: FASTENER. LOOSE. PDX- LOOSE/WORKING FASTENERS INBOARD OF LEFT HAND NR 3 LIFT DUMPER INBOARD HINGE. REPAIRED IAW FOKKER SRM 51-31-01 AND HORIZON AIR EA 4-57-457. - [SDR QXEA0002411](https://openairdocs.org/sdr/QXEA0002411), Aug 24, 2000: BEAM. CRACKED. PDX- RIGHT HAND REAR PRESSURE BULKHEAD HORIZONTAL BEAM 2 HAS A CRACK ON THE BEAM AT THE MOST OUTBOARD HOLE AT STRINGER 64. REPAIRED IAW FOKKER SRM 53-02-18, PAG - [SDR QXEA0002469](https://openairdocs.org/sdr/QXEA0002469), Aug 24, 2000: CLIP. CRACKED. PDX- CRACKED FRAME CLIP AT STRINGER 1 AND FRAME 16660. REPAIRED IAW FOKKER SRM 51-31-01 AND SRM 53-02-13, PAGE 2. - [SDR QXEA0002429](https://openairdocs.org/sdr/QXEA0002429), Aug 23, 2000: FRAME. CRACKED. PDX- FRAME 32-2 CASTELLATION CRACKED ABOVE STRINGER 44 ADJACENT TO BRACE ROD FITTING. REPAIRED IAW FOKKER SRM 51-10-04 AND HORIZON AIR EA 4-53-1323. - [SDR QXEA0002415](https://openairdocs.org/sdr/QXEA0002415), Aug 23, 2000: DOOR FRAME. DENTED. PDX- SERVICE EMERGENCY DOOR OUTER FRAME LOWER FORWARD CORNER RADIUS DENTED. REPAIRED IAW FOKKER SRM 51-31-01 AND HORIZON AIR EA 4-52-398. - [SDR QXEA0002395](https://openairdocs.org/sdr/QXEA0002395), Aug 23, 2000: BEAM. CHAFED. PDX- RIGHT HAND VERTICAL BEAM BETWEEN REAR PRESSURE BULKHEAD AND FRAME 18075 IS CHAFED JUST AFT OF FORWARD APU ENCLOSURE. VERTICAL LEG OF REPAIR ANGLE DOES NOT - [SDR QXEA0002394](https://openairdocs.org/sdr/QXEA0002394), Aug 23, 2000: BEAM. CHAFED. PDX- LEFT HAND VERTICAL BEAM BETWEEN REAR PRESSURE BULKHEAD AND FRAME 18075 IS CHAFED JUST AFT OF FORWARD APU ENCLOSURE. VERTICAL LEG OF REPAIR ANGLE WHERE SEVE - [SDR QXEA0002393](https://openairdocs.org/sdr/QXEA0002393), Aug 23, 2000: ROD END. WORN. PDX- LEFT HAND SPEED BRAKE PUSHROD AFT ROD END LOOSE/WORN. REPAIRED IAW FOKKER SRM 27-61-5 PAGE 203 AND 20-30-14. - [SDR QXEA0002502](https://openairdocs.org/sdr/QXEA0002502), Aug 23, 2000: FRAME. CRACKED. PDX- REPAIR DOUBLER ON FRAME CASTELLATION AT FRAME 13815B AND STRINGER 73 IS CRACKED. REPAIRED IAW FOKKER SRM 53-02-13 AND SRM 51-31-01. All 341: https://openairdocs.org/deregistered/N479AU-2004-02-27/reports.md ## NTSB investigations (2) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB NYC95IA065](https://openairdocs.org/ntsb/NYC95IA065), Mar 4, 1995: Fokker F28-4000 (N479AU), Huntington, WV, incident, minor damage. Probable cause: THE FATIGUE FRACTURE OF THE LEFT MAIN LANDING GEAR UPPER TORQUE LINK. - [NTSB CHI95IA045](https://openairdocs.org/ntsb/CHI95IA045), Nov 23, 1994: Fokker F-28-4000 (N479AU), Evansville, IN, incident, no damage. Probable cause: the failure of company maintenance personnel to adequately service (fill) the horizontal stabilizer drive actuator with hydraulic fluid. ## FAA accident and incident reports (6) 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 19990223013849I](https://openairdocs.org/incident/19990223013849I), Feb 23, 1999: Fokker F28MK4000 (N479AU), Bozeman, MT. (-5)Horizon, flight 2184, Fokker-model FK-28-MK4000. N479AU. On 2/23/99, 17:43 MST, aircraft N479QU, s/n 11228, horizon flight no. 2184. Pilot reported while… - [Incident 19980104002109I](https://openairdocs.org/incident/19980104002109I), Jan 4, 1998: Fokker F28MK4000 (N479AU), Sacramento, CA, Minor damage. Narrative: on final approach at 2000 feet, 200 knots airspeed, gear and flaps up, the aircraft was struck by a large bird. After the strike, other than a… - [Incident 19950304006899I](https://openairdocs.org/incident/19950304006899I), Mar 4, 1995: Fokker F28MK4000 (N479AU), Huntington, WV, Minor damage. Narrative: upper segment of torque link on left main gear broke on landing causing wheels to oscillate as aircraft rolled out. About 3000 feet into landing… - [Incident 19941123048029I](https://openairdocs.org/incident/19941123048029I), Nov 23, 1994: Fokker F28MK4000 (N479AU), Evansville, IN. Lost horizontal stabilizer servo landing. Actuator gear box low on fluid and contaminated. Used manual control. - [Incident 19910926047509I](https://openairdocs.org/incident/19910926047509I), Sep 26, 1991: Fokker F28MK1000 (N479AU), Buffalo, NY. Left engine hydraulic system overheat warning on climb. Returned. Replaced hydraulic pump and filter. - [Incident 19890209017269I](https://openairdocs.org/incident/19890209017269I), Feb 9, 1989: Fokker F28MK4000 (N479AU), Syracuse, NY. Horizontal stabilizer failure due to loss of hydraulic fluid on climb. Returned. Replaced check valve. --- 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.