# N187UA: 1992 Boeing 747-422, registration cancelled 2011-07-13 - Type: Cancelled registration (FAA registry, deregistered aircraft) - Cancelled: July 13, 2011 - Exported to: Thailand - Status when cancelled: Valid registration - Airframe: [Boeing 747-422](https://openairdocs.org/model/boeing-747-422) (registry code 1384935) - Engine: [Pratt & Whitney PW4000 series](https://openairdocs.org/engine/pratt-whitney-pw4000-series) (registry code 52119) - Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE) (OpenAirDocs) - Serial number: 26876 - Year built: 1992 - Type of aircraft: Fixed wing multi engine - Engine type: Turbo-fan - Airworthiness: Standard, transport - Airworthiness date: September 25, 1992 - Certificate issued: September 29, 1992 - Last registry action: September 3, 2010 - Mode S code: A15C70 - Owner when cancelled: [United Air Line Inc](https://openairdocs.org/faa-owner/UNITED%20AIR%20LINE%20INC) - Location: [Chicago, IL](https://openairdocs.org/faa-place/IL/Chicago) - Owner type: Corporation - Owner's area on the map: 41.8852° N, 87.6215° W: Placed by OpenAirDocs at the center of ZIP code 60601, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based - The mark today: https://openairdocs.org/aircraft/N187UA - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=187UA - Page: https://openairdocs.org/deregistered/N187UA-2011-07-13 From the FAA registry file of November 12, 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 Boeing 747-422: https://openairdocs.org/model/boeing-747-422.md ## Service difficulty reports (168, newest 50) Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. - [SDR UALA2009121403850](https://openairdocs.org/sdr/UALA2009121403850), Dec 13, 2009: BATTERY. FAULTY. TESTED BOTH UPPER DOOR SLIDE BATTERY AND FWD TEST FAIL. TRIED NEW BATTERY, NO HELP. TOOK BATTERY FROM ANOTHER SPOT AND TEST PASS. BAD BATTERY FROM SUPPLY. BAD B - [SDR UALA2009120403748](https://openairdocs.org/sdr/UALA2009120403748), Dec 4, 2009: LIGHT. INOPERATIVE. EMERGENCY EXIT LIGHT INOP DOOR 4 LEFT BUSSLE. REPLACED EEL LAMP. - [SDR UALA2009120403747](https://openairdocs.org/sdr/UALA2009120403747), Dec 4, 2009: LIGHT. INOPERATIVE. EMERGENCY EXIT EEL LIGHT INOP SEAT 5F AFT LIGHT ASSY. REPLACED EEL LAMP. - [SDR UALA2009120403746](https://openairdocs.org/sdr/UALA2009120403746), Dec 4, 2009: LIGHT. INOPERATIVE. EMERGENCY EXIT EEL LIGHT INOP SEAT 2J AFT LIGHT. RELAMPED EEL. - [SDR UALA2009120403745](https://openairdocs.org/sdr/UALA2009120403745), Dec 4, 2009: LIGHT. INOPERATIVE. EMERGENCY EXIT LIGHT INOP DOOR 2 LEFT BUSSLE. RELAMPED EEL. - [SDR UALA2009120403744](https://openairdocs.org/sdr/UALA2009120403744), Dec 4, 2009: FUSE. INOPERATIVE. EMERGENCY EXIT LIGHTS INOP EXTERIOR RIGHT OVERWING 2 MOST FWD ASSY'S. REPLACED FUSE, OPS CHECKS NORMAL. - [SDR UALA2009120403743](https://openairdocs.org/sdr/UALA2009120403743), Dec 4, 2009: CONNECTOR. UNSECURE. EMERGENCY EXIT EEL LIGHT INOP LOWER WALL EEL ACROSS DOOR 4 LEFT. SECURED CONNECTOR, OPS CHECKS NORMAL. - [SDR UALA2009120403742](https://openairdocs.org/sdr/UALA2009120403742), Dec 4, 2009: LIGHT. INOPERATIVE. EMERGENCY EXIT LIGHT INOP DOOR 1 LEFT BUSSLE. REPLACED LIGHT ASSY, OPS CHECKS NORMAL. - [SDR UALA2009120403741](https://openairdocs.org/sdr/UALA2009120403741), Dec 4, 2009: CONNECTOR. UNSECURE. EMERGENCY EXIT EEL LIGHT INOP DOOR 5 RIGHT AREA AFT LOWER WALL. SECURED CONNECTOR. OPS CHECKS NORMAL. - [SDR UALA2009120403740](https://openairdocs.org/sdr/UALA2009120403740), Dec 4, 2009: LIGHT. INOPERATIVE. EMERGENCY EXIT LIGHT INOP CEILING SEAT ROW 8 RIGHT. RELAMPED, OPS NORMAL. - [SDR UALA2009120403739](https://openairdocs.org/sdr/UALA2009120403739), Dec 4, 2009: LIGHT. INOPERATIVE. EMERGENCY EXIT LIGHT INOP UPPER DECK CEILING JUST AFT OF SEAT ROW 15. RELAMPED, OPS NORMAL. - [SDR UALA2009120403738](https://openairdocs.org/sdr/UALA2009120403738), Dec 4, 2009: LIGHT. INOPERATIVE. EMERGENCY EXIT LIGHT INOP UPPER DECK CEILING SEAT ROW 17. RELAMPED, OPS NORMAL. - [SDR UALA2009120403737](https://openairdocs.org/sdr/UALA2009120403737), Dec 4, 2009: LIGHT. INOPERATIVE. EMERGENCY EXIT LIGHT INOP DOOR 1 LEFT FWD SILL. RELAMPED, OPS NORMAL. - [SDR UALA2009111603559](https://openairdocs.org/sdr/UALA2009111603559), Nov 13, 2009: LIGHT. DAMAGED. THE 48C EMERGENCY PATHWAY LIGHT INOP. ONE (1) EEL PATHWAY MARKER DAMAGED AT SEAT 48C. REPLACED EEL STRIP ON SEAT 48C, OPS CHECK OKAY. - [SDR UALA2009110403435](https://openairdocs.org/sdr/UALA2009110403435), Nov 3, 2009: BLADE. BENT. ON A WALK AROUND FOUND NR 1 END FAN BLADES BENT AT TIP. NR 33 AND NR 21 FROM TIP 1" DOWN, CURLED OUTWARD ON TIPS. NEW BLADES ON FLAT BED AT ENG. REPLACED BLADES - [SDR UALA2009090202755](https://openairdocs.org/sdr/UALA2009090202755), Sep 1, 2009: WEB. CRACKED. FWD CARGO PIT AFT TORQUE BOX AT CENTER CARGO GUIDE STA 850 HAS A CRACK. CUT AND REMOVED DAMAGED TORQUE BOX WEB. - [SDR UALA2009090102746](https://openairdocs.org/sdr/UALA2009090102746), Sep 1, 2009: CONNECTOR. UNSECURE. EMERGENCY EXIT EEL LIGHT INOP, DOOR 5 AREA RIGHT LOWER AFT WALL. SECURED LOOSE CONNECTOR. - [SDR UALA2009090102745](https://openairdocs.org/sdr/UALA2009090102745), Sep 1, 2009: CONNECTOR. DEFECTIVE. EMERGENCY EXIT EEL LIGHT INOP SEAT ROW 40 RIGHT. REPLACED CONNECTOR. - [SDR UALA2009090102744](https://openairdocs.org/sdr/UALA2009090102744), Sep 1, 2009: CONNECTOR. DISCONNECTED. EMERGENCY EXIT EEL LIGHT INOP SEAT ROW 37 LEFT. RECONNECTED LOOSE PLUG. - [SDR UALA2009090102743](https://openairdocs.org/sdr/UALA2009090102743), Sep 1, 2009: FUSE. BLOWN. RIGHT EXTERIOR OVERWING EMERGENCY EXIT LIGHTS TWO MOST FWD ASSY'S INOP. REPLACED FUSE, OPS CHECKS NORMAL. - [SDR UALA2009090102742](https://openairdocs.org/sdr/UALA2009090102742), Sep 1, 2009: CONNECTOR. UNSECURE. EMERGENCY EXIT EEL LIGHTS INOP SEAT ROW 23 LEFT. TWO EA LIGHTS. SECURED CONNECTOR, OPS CHECKS NORMAL. - [SDR UALA2009083102730](https://openairdocs.org/sdr/UALA2009083102730), Aug 29, 2009: LAVATORY. INOPERATIVE. LAVS SHUTDOWN, FLT DIVERTED. LAVS WERE NOT SERVICED IN ORD. SERVICED ALL LAV TANKS, CHECKED ALL TOILETS AND OPS OKAY. - [SDR UALA2009071001982](https://openairdocs.org/sdr/UALA2009071001982), Jul 9, 2009: LIGHT. INOPERATIVE. LEFT OVERWING THIRD FIXTURE FROM FORWARD EEL LIGHT ASSEMBLY HAS ONE BULB INOP. RELAMPED, CHECKS OKAY. - [SDR UALA2009071001981](https://openairdocs.org/sdr/UALA2009071001981), Jul 9, 2009: LIGHT. INOPERATIVE. SEAT 5F AFT EEL LIGHT INOP. RELAMPED, CHECKS OKAY. - [SDR UALA2009071001980](https://openairdocs.org/sdr/UALA2009071001980), Jul 9, 2009: LIGHT. INOPERATIVE. SEAT 2J AFT EEL LIGHT INOP. RELAMPED EMERGENCY LIGHT, CHECKS OK. - [SDR UALA2009060101558](https://openairdocs.org/sdr/UALA2009060101558), May 30, 2009: CABLE. SHORTED. ALL FIRST CLASS SEAT EEL INOP. REPLACED SHORTED CABLE AT SEAT 4E. ALL SEAT EEL OP CHECK NORMAL ON LEFT SIDE. REPLACED BATTERY AT DOOR 1 RIGHT. ALL SEAT EELS OP - [SDR UALA2009052201471](https://openairdocs.org/sdr/UALA2009052201471), May 21, 2009: BATTERY. FAULTY. EEL LIGHTS ON FIRST CLASS SEATS RT SIDE ARE ON WITH SWITCH OFF. REPLACED BATTERY, CHECKS GOOD. - [SDR UALA2009041001039](https://openairdocs.org/sdr/UALA2009041001039), Apr 10, 2009: LIGHT. INOPERATIVE. EMERGENCY LIGHT INOP SEAT 2J AFT SECTION. REPLACED EMERGENCY LIGHT, OP CHECK NORMAL. - [SDR UALA2009041001038](https://openairdocs.org/sdr/UALA2009041001038), Apr 10, 2009: LIGHT. INOPERATIVE. EMERGENCY LIGHT INOP SEAT 2A AFT SECTION. REPLACED EMERGENCY LIGHT, OP CHECKED NORMAL. - [SDR UALA2009041001037](https://openairdocs.org/sdr/UALA2009041001037), Apr 10, 2009: LAMP. INOPERATIVE. EMERGENCY LIGHT INOP UPPER DK LT DOOR AFT SIDE EXIT. RELAMPED EMERGENCY LIGHT. - [SDR UALA2009031000720](https://openairdocs.org/sdr/UALA2009031000720), Mar 5, 2009: STARTER. FAULTY. ENG 1 NO START. START VALVE DID NOT OPEN. REPLACED STARTER AND START VALVE, OPS CHECKS OKAY. - [SDR UALA2009030501399](https://openairdocs.org/sdr/UALA2009030501399), Mar 5, 2009: STARTER. FAULTY. ENG 1 NO START. START VALVE DID NOT OPEN. REPLACED STARTER AND START VALVE, OPS CHECKS OKAY. - [SDR UALA2009021800534](https://openairdocs.org/sdr/UALA2009021800534), Feb 18, 2009: OXYGEN MASK. FAULTY. CAPT O2 MASK UNCONTROLLABLE IN EMERGENCY POSITION. REPLACED OXYGEN MASK. MASK OPERATES NORMAL. - [SDR UALA2009021800533](https://openairdocs.org/sdr/UALA2009021800533), Feb 18, 2009: LIGHT. INOPERATIVE. SEAT 5F AFT EEL LIGHT INOP. REPLACED LIGHT ASSY. - [SDR UALA2009021800532](https://openairdocs.org/sdr/UALA2009021800532), Feb 18, 2009: CONNECTOR. UNSECURE. SEAT 32ABC EEL LIGHT INOP. SECURED CONNECTOR AT ASSY. - [SDR UALA2009021800531](https://openairdocs.org/sdr/UALA2009021800531), Feb 18, 2009: CONNECTOR. LOOSE. SEAT 34ABC EEL LIGHT INOP. SECURED CONNECTOR AT ASSY. - [SDR UALA2009021800530](https://openairdocs.org/sdr/UALA2009021800530), Feb 18, 2009: LIGHT. INOPERATIVE. DOOR 2L AFT SILL LIGHT INOP. RELAMPED SILL LIGHT. - [SDR UALA2009021800529](https://openairdocs.org/sdr/UALA2009021800529), Feb 18, 2009: LIGHT. INOPERATIVE. SEAT 37 HKJ EEL LIGHT INOP. REPLACED LIGHT ASSY. - [SDR UALA2008111306182](https://openairdocs.org/sdr/UALA2008111306182), Oct 19, 2008: LIGHT. BROKEN. 4F AFT EMERGENCY LIGHT STRIP BROKEN OFF. REPLACED STRIP. - [SDR 2008UALA06182](https://openairdocs.org/sdr/2008UALA06182), Oct 19, 2008: STRIP. BROKEN. THE 4F AFT PEEL STRIP BROKEN OFF. - [SDR 2008UALA05818](https://openairdocs.org/sdr/2008UALA05818), Sep 20, 2008: BATTERY. INOPERATIVE. EMERGENCY SIGN DR3R FWD INOP. BATTERY FOUND FAULTY. REPLACED BATTERY. OP CHECKS OKAY. - [SDR 2008UALA05817](https://openairdocs.org/sdr/2008UALA05817), Sep 20, 2008: BATTERY. INOPERATIVE. EMERGENCY LIGHT FROM ROW 35 THRU 45 INOP. FOUND BATTERY FAULTY. REPLACED BATTERY. CHECKS OK. - [SDR 2008UALA05816](https://openairdocs.org/sdr/2008UALA05816), Sep 20, 2008: LAMP. INOPERATIVE. EMERGENCY LIGHT FWD GALLEY RT WALL INOP. RELAMPED. CHECKS OK - [SDR 2008UALA05722](https://openairdocs.org/sdr/2008UALA05722), Sep 14, 2008: LIGHT. BROKEN. FOUND AT SEAT 5A EEL BROKEN. LIGHT FOUND BROKEN. REPLACED EEL. OP CHECKS OKAY. - [SDR 2008UALA04221](https://openairdocs.org/sdr/2008UALA04221), Aug 9, 2008: LIGHT. INOPERATIVE. EMERGENCY LIGHT AFT CREW REST STAIRS ILLUMINATION LIGHT INOP. FOUND FAULTY LIGHT. REPLACED LIGHT ASSY. - [SDR 2008UALA04219](https://openairdocs.org/sdr/2008UALA04219), Aug 9, 2008: CONNECTOR. DISCONNECTED. EMERGENCY LIGHT RH SEAT 35 THRU 44 INOP. FOUND LOOSE CONNECTOR. SECURED BATTERY CONNECTOR. EXIT SIGN OPS CKS NORMAL. - [SDR 2008UALA04218](https://openairdocs.org/sdr/2008UALA04218), Aug 9, 2008: CONNECTOR. DISCONNECTED. EMERGENCY LIGHT DOOR 3R FWD EXIT SIGN INOP. FOUND LOOSE CONNECTOR. SECURED BATTERY CONNECTOR. EXIT SIGN OPS CKS NORMAL. - [SDR 2008UALA04224](https://openairdocs.org/sdr/2008UALA04224), Aug 9, 2008: LAMP. INOPERATIVE. EMERGENCY LIGHT SEAT 5F AFT INOP. RELAMPED, OP CHECK NORMAL. - [SDR 2008UALA04223](https://openairdocs.org/sdr/2008UALA04223), Aug 9, 2008: LAMP. INOPERATIVE. EMERGENCY LIGHT SEAT 2A AFT INOP. RELAMPED, OP CHECK NORMAL. - [SDR 2008UALA04222](https://openairdocs.org/sdr/2008UALA04222), Aug 9, 2008: LAMP. INOPERATIVE. EMERGENCY LIGHT SEAT 5E AFT INOP. RELAMPED, OP CHECK NORMAL. All 168: https://openairdocs.org/deregistered/N187UA-2011-07-13/reports.md --- 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, except the copies of manufacturers’ service documents, which belong to their rights holders.