# N173UA: 1989 Boeing 747-422, registration cancelled 2012-01-09

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: January 9, 2012
- Status when cancelled: First renewal notice
- 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: 24380
- Year built: 1989
- Type of aircraft: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: December 8, 1989
- Certificate issued: August 19, 2004
- Last registry action: July 15, 2008
- Mode S code: A12615
- 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/N173UA
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=173UA
- Page: https://openairdocs.org/deregistered/N173UA-2012-01-09

From the FAA registry file of November 7, 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 (212, newest 50)

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

- [SDR UALA2011090904877](https://openairdocs.org/sdr/UALA2011090904877), Sep 8, 2011: LIGHT. INOPERATIVE. SEAT 54 EEL LIGHT INOPERATIVE. RELAMPED, CHECKS OKAY.
- [SDR UALA2011090904876](https://openairdocs.org/sdr/UALA2011090904876), Sep 8, 2011: LIGHT. INOPERATIVE. SEAT 46L EEL LIGHT INOPERATIVE. RELAMPED, CHECKS OKAY.
- [SDR UALA2011090904875](https://openairdocs.org/sdr/UALA2011090904875), Sep 8, 2011: LIGHT. INOPERATIVE. SEAT 39R EEL LIGHT INOPERATIVE. RELAMPED, CHECKS OKAY.
- [SDR UALA2011080804151](https://openairdocs.org/sdr/UALA2011080804151), Aug 7, 2011: FIRE BOTTLE. DISCHARGED. CREW REPORT: PORTABLE HALON BTL IN AFT LAV SELF DISCHARGED. REPLACED AFT CABIN HALON FIRE EXT.
- [SDR UALA2011080304012](https://openairdocs.org/sdr/UALA2011080304012), Aug 1, 2011: BATTERY PACK. INOPERATIVE. UPPER DECK LEFT LIGHT OUT ON PRESSURE GAUGE WHEN EMERGENCY EXIT LIGHTS ON. REPLACED BATTERY PACK, LIGHTS CHECKED OK.
- [SDR UALA2011072003693](https://openairdocs.org/sdr/UALA2011072003693), Jul 20, 2011: STRINGER. CORRODED. FOUND CORROSION IN STR 51L APPROX STA 1800 TO STA 1820. MAJOR REPAIR ACCOMPLISHED: REPLACED STR 51L FROM STA 1740 TO 1960 REF SFOOV WRITE UP E9664H.
- [SDR UALA2011062903213](https://openairdocs.org/sdr/UALA2011062903213), Jun 25, 2011: STRINGER. CORRODED. FOUND STR 51R CORRODED BETWEEN STA 1800 TO 1960. SKIN HAS BULGED SKIN AT STA 1944. REPLACED S51R. INSTALLED DOUBLER REPAIR.
- [SDR UALA2011062703177](https://openairdocs.org/sdr/UALA2011062703177), Jun 25, 2011: SKIN. DETERIORATED. LEFT WING UPPER WING PANEL AT APPROXIMATE LOCATION WS 1056 INBOARD OF NR 1 ENG HAS DETERIORATED SURFACE PROTECTION AND EXPOSED MATERIAL. REPAIRED PER SRM. REPAI
- [SDR UALA2011062703176](https://openairdocs.org/sdr/UALA2011062703176), Jun 25, 2011: LAMP. INOPERATIVE. EMERGENCY EXIT LIGHT INOPERATIVE. RELAMPED
- [SDR UALA2011062703175](https://openairdocs.org/sdr/UALA2011062703175), Jun 25, 2011: LAMP. INOPERATIVE. EMERGENCY EXIT LIGHT INOPERATIVE. RELAMPED.
- [SDR UALA2011062703174](https://openairdocs.org/sdr/UALA2011062703174), Jun 25, 2011: FEEDER CABLE. INOPERATIVE. EMERGENCY EXIT LIGHT INOP DOOR 5 RIGHT GALLEY AREA AFT LOWER WALL. SPLICED NEW CABLE.
- [SDR UALA2011062703173](https://openairdocs.org/sdr/UALA2011062703173), Jun 25, 2011: LAMP. INOPERATIVE. EMERGENCY EXIT LIGHT INOPERATIVE SEAT ROW 33 LEFT. RELAMPED.
- [SDR UALA2011062703172](https://openairdocs.org/sdr/UALA2011062703172), Jun 25, 2011: LAMP. INOPERATIVE. EMERGENCY EXIT LIGHT INOPERATIVE. RELAMPED.
- [SDR UALA2011062703171](https://openairdocs.org/sdr/UALA2011062703171), Jun 25, 2011: LIGHT. MISSING. EMERGENCY EXIT LIGHT MISSING DOOR 4 GALLEY AREA LOWER WALL CROSS AISLE. REPLACED LIGHT.
- [SDR UALA2011062103050](https://openairdocs.org/sdr/UALA2011062103050), Jun 17, 2011: TIRE. WORN. GEAR VIBRATION AT 75 KTS UNTIL ABOUT 100KTS ON TAKEOFF. SEEMS TO BE BODY OR WING NOT NOSE. FLT CREW FELT IT AND LASTED AROUND 5 SECONDS EA TIME. GOT VIB AGAIN O
- [SDR UALA2011042802070](https://openairdocs.org/sdr/UALA2011042802070), Apr 27, 2011: LIGHT. LOOSE. AFT GALLEY EMERGENCY EXIT LIGHT STRIP UNDER FRIG IS LOOSE. SECURED LIGHT STRIP. ALL GALLEY LIGHTS CHECKED, OPS NORMAL.
- [SDR UALA2011041101748](https://openairdocs.org/sdr/UALA2011041101748), Apr 11, 2011: FUEL/OIL COOLER. LEAKING. ON ARRIVAL TO SFO FLIGHT 870-10, NR 2 ENGINE IS STILL LEAKING FUEL ONTO THE RAMP FROM UNDER COWLING. DRY MOTORED NR 2 ENGINE, FOUND IDG AIR-OIL COOLER LEAKING F
- [SDR UALA2011040401593](https://openairdocs.org/sdr/UALA2011040401593), Apr 3, 2011: CONNECTOR. DAMAGED. EEL SEAT 46ABC INOP. REPAIRED CONNECTOR ON EEL LIGHT, OPS NORMAL.
- [SDR UALA2011040401592](https://openairdocs.org/sdr/UALA2011040401592), Apr 3, 2011: LIGHT. INOPERATIVE. LWR AISLE DOOR 2 LT INOPERATIVE. RELAMPED, OPS NORMAL.
- [SDR UALA2011040401591](https://openairdocs.org/sdr/UALA2011040401591), Apr 3, 2011: LIGHT. INOPERATIVE. LAV EEL LIGHT DOOR 3 RT INOP. REPLACED EMERGENCY LIGHT PWR STRIP ON FLOOR, OPS CHECK OKAY.
- [SDR UALA2011021600812](https://openairdocs.org/sdr/UALA2011021600812), Feb 16, 2011: CHARGER. FAILED. AFTER STBY BAT TEST BAT DISCHARGE MAIN EICAS MSG COMES BACK ON FOR 10 TO 15 SEC INTERMITTENT. REPLACED MAIN BATTERY CHARGER AND TESTS OK IAW MM.
- [SDR UALA2011020100556](https://openairdocs.org/sdr/UALA2011020100556), Jan 31, 2011: CONTROLLER. FAULTY. LEFT WINDOW HEAT CONTROL FAILED. LT WINDOW HEAT CONTROLLER REPLACED WITH QF LOAN ITEM. MR30408 DASH 13 OFF. P-NO. ON: 2915-5 SN ON 1428. OPS CK OK.
- [SDR UALA2011012700464](https://openairdocs.org/sdr/UALA2011012700464), Jan 26, 2011: BATTERY. DISCHARGED. STANDBY TEST FAILED. MAIN BATTERY CHARGER SHOWED ONLY 25 AMPS CHARGING. REPLACED MAIN BATTERY IAW MM24-31-01-401 & MAIN BATTERY CHARGER IAW MM. SYS NORMAL.
- [SDR UALA2011011400227](https://openairdocs.org/sdr/UALA2011011400227), Jan 13, 2011: LIGHT. CORRODED. DOOR 4 GALLEY LWR WALL LIGHT IS FAULTY. REPLACED CORRODED POWER EEL STRIPPING.
- [SDR UALA2011011400231](https://openairdocs.org/sdr/UALA2011011400231), Jan 13, 2011: LAMP. INOPERATIVE. EMERGENCY LIGHT AT 33 LEFT INOPERATIVE. REPLACED LAMP ASSY.
- [SDR UALA2011011400230](https://openairdocs.org/sdr/UALA2011011400230), Jan 13, 2011: LAMP. INOPERATIVE. 33HJK SEAT EMERGENCY LIGHT INOPERATIVE. RELAMPED.
- [SDR UALA2011011400229](https://openairdocs.org/sdr/UALA2011011400229), Jan 13, 2011: LAMP. INOPERATIVE. SEAT 45 LEFT. RELAMPED.
- [SDR UALA2011011400228](https://openairdocs.org/sdr/UALA2011011400228), Jan 13, 2011: LAMP. INOPERATIVE. DOOR 4 LEFT BUSTLE. RELAMPED.
- [SDR UALA2010123004769](https://openairdocs.org/sdr/UALA2010123004769), Dec 30, 2010: LIGHT. LOOSE. EMERGENCY LIGHT STRIP ALONG LAV WALL BY DOOR 1R IS FALLING OFF THE WALL AND WIRES EXPOSED. EMERGENCY LIGHT STRIP RESECURED, OPS NORMAL.
- [SDR UALA2010122804750](https://openairdocs.org/sdr/UALA2010122804750), Dec 27, 2010: CART. FAILED. PIG TAIL P42, INOP, HAS ELECTICAL ODOR, AND HOT TO THE TOUCH. COMPLIED WITH MEL PROC, D. CYC: TEST PASS IAW NEW GALLEY CART TESTER, SUSPECT CART WAS BAD.
- [SDR UALA2010120704478](https://openairdocs.org/sdr/UALA2010120704478), Dec 6, 2010: BATTERY. FAILED. STANDBY TEST FAILED. MAIN BATTERY CHARGER DOES NOT CHARGE BATTERY. CHARGER & BATTERY FOUND FAULTY. REPLACED MAIN BATTERY AND MAIN BATTERY CHARGER. OPS ARE NORMA
- [SDR UALA2010120104419](https://openairdocs.org/sdr/UALA2010120104419), Nov 30, 2010: CHANNEL. DAMAGED. NR5 LT MED SLIDE PACK BUSTLE, AFT SECURING LATCH DOES NOT SECURE IN LATCHED POSITION. LATCH REMOVED FOR REPAIR. MANUFACTURED & INSTALLED NEW CHANNEL. ACCOMPLISH
- [SDR UALA2010113004395](https://openairdocs.org/sdr/UALA2010113004395), Nov 30, 2010: BATTERY PACK. INOPERATIVE. UPPER DECK CEILING EXIT SIGN IS INOP. REPLACED EXIT BATTERY PACK, OPS CK OKAY.
- [SDR UALA2010113004394](https://openairdocs.org/sdr/UALA2010113004394), Nov 30, 2010: CONNECTOR. DAMAGED. SEAT 45 ABC EMERGENCY LIGHT IS INOP. SUPPLEMENTAL DATA UPDATE, REPAIRED CONNECTOR TO EMERGENCY LIGHT UNDER SEAT, OPS CK OK.
- [SDR UALA2010113004393](https://openairdocs.org/sdr/UALA2010113004393), Nov 30, 2010: LAMP. INOPERATIVE. SEAT 40HJK EMERGENCY LIGHT IS INOPERATIVE. REPLACED EMERGENCY LIGHT LAMP, OPS CK OK.
- [SDR UALA2010113004392](https://openairdocs.org/sdr/UALA2010113004392), Nov 30, 2010: WIRE. DAMAGED. SEAT 43 ABC EMERGENCY LIGHT IS INOP. SUPPLEMENTAL DATA UPDATE, REPAIRED WIRE TO EMERGENCY LIGHT, OPS CHECK OKAY.
- [SDR UALA2010113004391](https://openairdocs.org/sdr/UALA2010113004391), Nov 30, 2010: BATTERY. DISCHARGED. UPPER DECK SEAT EMERGENCY LIGHT 14AB INOP. BATTERY CHARGED UP. TURNED ON EMERGENCY LIGHTS. CHECKS NORMAL.
- [SDR UALA2010113004390](https://openairdocs.org/sdr/UALA2010113004390), Nov 30, 2010: BATTERY. DISCHARGED. UPPER DECK SEAT EMERGENCY LIGHTS 13AB IS INOP. BATTERY CHARGED UP. TURNED EMERGENCY LIGHTS ON. CHECKS NORMAL.
- [SDR UALA2010111004175](https://openairdocs.org/sdr/UALA2010111004175), Nov 10, 2010: GIRT BAR. OUT OF POSITION. DOOR 5 RT SIDE WILL NOT DISARM OR ARM. FOUND THAT THE FORWARD SIDE OF THE GIRT BAR HAD JUMPED OUT OF ALIGNMENT. PLACED BACK INTO ALIGNMENT, OPS NORMAL.
- [SDR UALA2010110804144](https://openairdocs.org/sdr/UALA2010110804144), Nov 8, 2010: LIGHT. LOOSE. EMERGENCY PATH LIGHTING AT LAV 101 IS LOOSE. SECURED LOOSE EMERGENCY PATH LIGHT AT LAV 101.
- [SDR UALA2010100403660](https://openairdocs.org/sdr/UALA2010100403660), Oct 3, 2010: FUEL TANK. LEAKING. RAMP REPORTED FUEL COMING OUT OF FWD SMALL HOLE ON APU DRAIN MASK. WHILE IN STAB COMPARTMENT, OBSERVED RUNNING FUEL LEAK (ALMOST A STEADY STREAM) FROM THE AFT L
- [SDR UALA2010091603438](https://openairdocs.org/sdr/UALA2010091603438), Sep 14, 2010: LIGHT. LOOSE. EXIT PATH LIGHTING IS LOOSE AT LAV100 BY DOOR 1 LT. INTERIM REPAIRED WITH TAPE. EXIT PATH LIGHT FUNCTIONS NORMAL. ACCOMPLISHED REPAIR.
- [SDR UALA2010082603154](https://openairdocs.org/sdr/UALA2010082603154), Aug 25, 2010: VALVE. FAULTY. PRESSURE CHECKED SYS AND FOUND FUEL GOING INTO 2R AND 2M WITH ALL VALVES CLOSED, SUSPECT FUEL GOING INTO 2R AND UNWANTED FUEL TRANSFERRING INTO 2M. REPLACED NR 
- [SDR UALA2010082603141](https://openairdocs.org/sdr/UALA2010082603141), Aug 24, 2010: BATTERY. FAULTY. APU BATTERY CHARGER STATUS MSG DISPLAYED AFTER 7.5 HRS OF FLT. VOLTAGE READING 25 DCV. REPLACED APU BATTERY AND BATTERY CHARGER PER MM. REPLACED DM7432B BACKSHE
- [SDR UALA2010062102182](https://openairdocs.org/sdr/UALA2010062102182), Jun 20, 2010: SKIN. DELAMINATED. LEFT UPPER WING FIXED T/E PANEL HAS WATER INGRESS AND DELAMINATED IN 2 LOCATIONS. WATER INGESTING FOUND ON LT UPPER WING TE PANEL AT TWO LOCATIONS DIRECTLY BELO
- [SDR UALA2010061502106](https://openairdocs.org/sdr/UALA2010061502106), Jun 15, 2010: WIRE. BURNED. FOUND VARIOUS WIRES BURNED AND DAMAGED GOING TO AFT LAV 117 I-OEU DB7506. CABIN SVC ZONE E (A10) CB ON THE P414 PANEL STILL POPS. STARTED REMOVING CLAMPS ABOVE 
- [SDR UALA2010061502114](https://openairdocs.org/sdr/UALA2010061502114), Jun 14, 2010: SKIN. DELAMINATED. LT WING FIXED T/E INBD UPPER PANEL HAS A 6X10 AREA OF DELAMINATION. REMOVED TOPCOATS DOWN TOP REVIOUS REPAIRS. TAP TESTED, FOUND NO DELAMINATIONS ON UPPER OR LO
- [SDR UALA2010061402083](https://openairdocs.org/sdr/UALA2010061402083), Jun 14, 2010: LIGHT. UNSECURE. EMERGENCY LIGHT ASSY LOOSE FWD EDGE OF LAV 101 BY DOOR 1 RT. RESECURED UPPER LIGHT ASSY TO FWD EDGE, OPS CK OK.
- [SDR UALA2010061402082](https://openairdocs.org/sdr/UALA2010061402082), Jun 14, 2010: FEEDER CABLE. SATURATED. FLOOR EMERG EMERGENCY LIGHT INOP, SEAT 45ABC TO SEAT 53ABC INOP LT. REMOVED WATER UNDER FLOOR MAT.
- [SDR UALA2010061402081](https://openairdocs.org/sdr/UALA2010061402081), Jun 14, 2010: FEEDER CABLE. SATURATED. L4 DOOR LOWER EMERGENCY LIGHTS AT GALLEY INOP. CLEANED AND REMOVED WATER UNDER FLOOR MAT.

All 212: https://openairdocs.org/deregistered/N173UA-2012-01-09/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 DCA11FA091](https://openairdocs.org/ntsb/DCA11FA091), Jul 29, 2011: Boeing 747-422 (N173UA), Tangshan, China, no damage. Probable cause: an inadvertent encounter with convectively induced turbulence likely due to radar limitations and convective weather developing upwards into the flight path.
- [NTSB DCA10CA032](https://openairdocs.org/ntsb/DCA10CA032), Feb 19, 2010: Boeing 747 (N173UA), Anchorage, AK, minor damage. Probable cause: an inadvertent encounter with clear air turbulence.

## 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.

- [Accident 20110729023949A](https://openairdocs.org/incident/20110729023949A), Jul 29, 2011: Boeing 747-422 (N173UA), No damage. Prior to the turbulence event, the captain had the weather radar on and determined that it was safe for the flight attendants to get up and start their…
- [Accident 20100219028409A](https://openairdocs.org/incident/20100219028409A), Feb 19, 2010: Boeing 747-422 (N173UA), Minor damage. Ua 897 iad-nrt encountered severe turbulence in the anchorage fir. The flight was experiencing moderate turbulence and asked for lower altitude due to a…

## Other aircraft with N173UA

- [Cancelled 2022-03-05](https://openairdocs.org/deregistered/N173UA-2022-03-05): DJI MAVIC PRO PLATINUM, S/N 08QCF73P12300W. Registration expired, pending cancellation. Owner: [Texas A&M University Corpus Christi](https://openairdocs.org/faa-owner/TEXAS%20A%26M%20UNIVERSITY%20CORPUS%20CHRISTI), [Corpus Christi, TX](https://openairdocs.org/faa-place/TX/Corpus%20Christi)

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