# N550UA: 1992 Boeing 757-222, registration cancelled 2017-03-13

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: March 13, 2017
- Status when cancelled: Valid registration
- Airframe: [Boeing 757-222](https://openairdocs.org/model/boeing-757-222) (registry code 1384956)
- Engine: [Pratt & Whitney PW2040](https://openairdocs.org/engine/pratt-whitney-pw2040) (registry code 52121)
- Data sheets: [TCDS A2NM](https://openairdocs.org/tcds/A2NM), [TCDS E17NE](https://openairdocs.org/tcds/E17NE) (OpenAirDocs)
- Serial number: 25398
- Year built: 1992
- Type of aircraft: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: February 11, 1992
- Certificate issued: March 4, 2014
- Last registry action: October 19, 2016
- Mode S code: A7012E
- Owner when cancelled: [United Airlines Inc](https://openairdocs.org/faa-owner/UNITED%20AIRLINES%20INC)
- Location: [Chicago, IL](https://openairdocs.org/faa-place/IL/Chicago)
- Owner type: Corporation
- Owner's area on the map: 41.8813° N, 87.6375° W: Placed by OpenAirDocs at the center of ZIP code 60606, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N550UA
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=550UA
- Page: https://openairdocs.org/deregistered/N550UA-2017-03-13

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 757-222: https://openairdocs.org/model/boeing-757-222.md

## Service difficulty reports (245, newest 50)

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

- [SDR CALA2015061993996](https://openairdocs.org/sdr/CALA2015061993996), Jun 18, 2015: STRUCTURE. CRACKED. L2 DOOR UPPER HINGE CUT OUT CRACKED. CF 9128 DATED 2/27/15. REMOVE, MFG & INSTALLED PART 1 ANGLE IAW SRM 52-10-02 REPAIR 1.
- [SDR CALA2015032093446](https://openairdocs.org/sdr/CALA2015032093446), Mar 19, 2015: ACTUATOR. FAULTY. CREW REPORTS GEAR DISAGREE MSG. LOWERED GEAR & DID NOT GET NOSE GEAR GREEN. ACCOMPLISHED ALT GEAR EXTENSION STILL NO GREEN. ALSO FLIGHT ATTENDANT REPORTED LOUD 
- [SDR CALA2015031793436](https://openairdocs.org/sdr/CALA2015031793436), Mar 13, 2015: SLIDER. DEFECTIVE. DOOR 4R SLIDE ARMED LIGHT INOPERATIVE. REPLACED FWD GIRT BAR SLIDER IAW 52-11-25.
- [SDR CALA2015030993400](https://openairdocs.org/sdr/CALA2015030993400), Feb 27, 2015: STRUCTURE. CRACKED. L2 DOOR UPPER HINGE CUT OUT CRACKED. REMOVE, MFG & INSTALLED PART 1 ANGLE IAW SRM 52-10-02 REPAIR 1.
- [SDR CALA2015030493201](https://openairdocs.org/sdr/CALA2015030493201), Feb 27, 2015: ANGLE. CRACKED. L2 DOOR UPPER HINGE CUT OUT CRACKED. REMOVED, MFG & INSTALLED PART 1 ANGLE IAW SRM 52-10-02 REPAIR 1. CF REQUIRED TO INSPECT IAW B TABLE 202 AT 50000 DOOR FLIGH
- [SDR CALA2014080691746](https://openairdocs.org/sdr/CALA2014080691746), Aug 5, 2014: ENGINE. OVERTEMP. RIGHT ENG SN 726726, DURING ENG START EGT EXCEEDED START LIMITS, MAX EGT FROM EXCEEDANCE PAGE REPORTED TO BE 552 FOR ONE SECOND IAW JRH 2-5-62 FIG 1. EXCEEDANCE
- [SDR CALA2014080691745](https://openairdocs.org/sdr/CALA2014080691745), Aug 5, 2014: COMPRESSOR. STALLED. RT ENG SN 726726 HAD AUDIBLE COMPRESSOR STALL DURING ENG START AT STARTER CUT OUT AT APPROXIMATELY 47 -48%. VISUALLY INSPECTED NR 2 ENG CHIP DETECTORS & PERFORM
- [SDR CALA2015021293124](https://openairdocs.org/sdr/CALA2015021293124), May 28, 2014: SKIN. DENTED. DENT IN FUSELAGE SKIN REPAIR BS 775 & 2" ABOVE STRINGER 17L. REMOVED EXISTING FUSELAGE SKIN REPAIR BS 775 ABOVE STRINGER 17L. TRIMMED ADDITIONAL DAMAGE & INSTAL
- [SDR CALA2014060291196](https://openairdocs.org/sdr/CALA2014060291196), May 28, 2014: REPAIR. DENTED. DENT IN FUSELAGE SKIN REPAIR BS 775 & 2 INCHES ABOVE STRINGER 17L. REMOVED EXISTING FUSELAGE SKIN REPAIR BS 775 ABOVE STRINGER 17L. TRIMMED ADDITIONAL DAMAGE & 
- [SDR CALA2014052791154](https://openairdocs.org/sdr/CALA2014052791154), May 24, 2014: SKIN. DENTED. DENT IN FUSELAGE EXTERIOR REPAIR BS 608.5 & 1 IN BELOW STRINGER 16L. REMOVED EXISTING REPAIR DOUBLER AT BS 608.5, STRINGER 16L. INSTALLED NEW REPAIR DOUBLER AT 
- [SDR CALA2014050690969](https://openairdocs.org/sdr/CALA2014050690969), May 5, 2014: ALTIMETER. FAULTY. 2 ELEC ALTIMETER FLUCTUATES WITH NORMAL OR ALTERNATE STATIC SELECTED. POS, 01=CAPT, 02=F-0. FO ALTIMETER STICKS WHEN CLIMBING & JUMPS WHEN LEVEL. SWITCHED ADC, 
- [SDR CALA2014012790241](https://openairdocs.org/sdr/CALA2014012790241), Jan 26, 2014: RADIO ALTIMETER. MALFUNCTIONED. CTR RADAR ALTIMETER FLAG CYCLES INOPERATIVE. RESET CTR RADIO ALTIMETER, OPERATION TESTED OK IAW MM 34-33-00.
- [SDR CALA2014011590155](https://openairdocs.org/sdr/CALA2014011590155), Jan 15, 2014: BPCU. FAULTY. CREW REPORTED THAT 1.5 HRS INTO FLT, FLT ATTD REPORTED NO PWR TO AFT GALLEY. AT 2.0 HRS INTO FLT BOTH LT & RT UTILITY BUSSES TRIPPED OFF. IAW FIM CREW CYCLED UT
- [SDR CALA2014010790062](https://openairdocs.org/sdr/CALA2014010790062), Dec 31, 2013: LIGHT. INOPERATIVE. EMERGENCY EXIT LIGHT STRIP IN FRONT OF AFT LAVATORY INOPERATIVE, ONE STRIP ONLY. ONE LIGHT STRIP ONLY IN FRONT OF AFT LAVATORY INOPERATIVE REST ILLUMINATE OKAY.
- [SDR CALA2014010290017](https://openairdocs.org/sdr/CALA2014010290017), Dec 31, 2013: RELAY. FAILED. LT ENG PROBE HEAT STATUS MESSAGE. REPLACED K10308. IDLE RUN BOTH ENGS FOR 10 MINUTES. NO STATUS MESSAGES DISPLAYED.
- [SDR CALA2014010290015](https://openairdocs.org/sdr/CALA2014010290015), Dec 31, 2013: RELAY. FAULTY. LT ENG PROBE HEAT STATUS MESSAGE. IAW FIM 30-34-00 & WDM 30-34-11 PG 2. REPLACED RELAY K10337 LT ENG OUT RELAY, MESSAGE CLEAR, OPERATIONS CHECKED NORMAL.
- [SDR CALA2013123094010](https://openairdocs.org/sdr/CALA2013123094010), Dec 28, 2013: LIGHT. INOPERATIVE. EMERGENCY EXIT LIGHT STRIP IN FRONT OF AFT LAVATORY INOPERATIVE. ONLY ONE LIGHT STRIP IN FRONT OF AFT LAVATORY INOPERATIVE, REST ILLUMINATE OK PARTS 560-0806 36
- [SDR CALA2013123094008](https://openairdocs.org/sdr/CALA2013123094008), Dec 28, 2013: FEEDER CABLE. FAULTY. EMERGENCY EXIT LIGHT FROM SEAT 37 - 40 & BY FWD AFT LAVATORY DOES NOT WORK. REPLACED FEEDER CABLE & LIGHT STRIP EMERGENCY EXIT LIGHT FROM SEAT 37-40 WORKS. THE 
- [SDR CALA2013123094027](https://openairdocs.org/sdr/CALA2013123094027), Dec 27, 2013: STATUS MESSAGE. ACTIVATED. PWR XFER UNIT STATUS MESSAGE. COMPLIED WITH MEL 3161B. PLEASE FOLLOW FIM 29-22-00, FIG 104 FOR TROUBLE SHOOTING PURPOSE.
- [SDR CALA2013122093849](https://openairdocs.org/sdr/CALA2013122093849), Dec 20, 2013: CONTROLLER. FAULTY. LT ENG BLEED AIR SURGES AT LOW POWER SETTINGS, WILL NOT OPEN ENG ANTI ICE AT IDLE. DUCT PRESS. REPLACED NR 1 ENG HIGH STAGE PILOT CONTROL. RAN ENG, OPERATED NOR
- [SDR CALA2013122093833](https://openairdocs.org/sdr/CALA2013122093833), Dec 19, 2013: BLEED VALVE. MALFUNCTIONED. APU BLEED VLV CYCLES CLOSED UNCOMMANDED.
- [SDR CALA2013120593499](https://openairdocs.org/sdr/CALA2013120593499), Dec 4, 2013: HYDRAULIC LINE. CRACKED. HYD PUDDLE UNDER NR 2 ENG PYLON SAIL TAIL. HYD FLUID DROPS COMING FROM SAIL TAIL. FOUND NR 2 ENG REVERSER HYD RETURN LINE WITH A 1-16" CRACK IAW ITEM 935 IPC 29
- [SDR CALA2013120493455](https://openairdocs.org/sdr/CALA2013120493455), Dec 3, 2013: FILTER. DEFECTIVE. APU BLEED AIR SURGES. REPLACED APU SURGE VLV ELEMENT FILTER IAW AMM, OPERATIONS CHECKED NORMAL.
- [SDR CALA2013120293370](https://openairdocs.org/sdr/CALA2013120293370), Dec 1, 2013: BLADE. NICKED. NR 2 ENG FAN HAS A DIME SIZE KNICK. IAW MM72-31-02 FOR ALLOWABLE DAMAGE LIMITS. BLENDED NR 3 BLADE & NR 2 ENG IAW AMM 72-31-02, BLEND WITHIN AMM LIMITS.
- [SDR CALA2013120293369](https://openairdocs.org/sdr/CALA2013120293369), Dec 1, 2013: LIGHT. LOOSE. EMERGENCY LIGHT STRIP ON FLOOR NEAR 1B IS LOOSE & COMING UP. SECURED LIGHT STRIP BY ROW 1AB, OK FOR SERVICE.
- [SDR CALA2013120293371](https://openairdocs.org/sdr/CALA2013120293371), Nov 27, 2013: PUMP. FAULTY. LT AFT BOOST PUMP LOW PRESS LT ON, SW ON, EICAS MESSAGE LT AFT FUEL PUMP DISPLAYED. CB OUT. REPLACED LT AFT BOOST PUMP IAW 28-22-03, LEAK & OPERATIONS CHECKED O
- [SDR CALA2013111892992](https://openairdocs.org/sdr/CALA2013111892992), Nov 14, 2013: STRAP. MISSING. 'D' RING STRAP MISSING FROM SLIDE AT DOOR 1L. REPLACED DOOR 1L SLIDE RAFT IAW AMM, OPERATIONS CHECKED GOOD.
- [SDR CALA2013111392892](https://openairdocs.org/sdr/CALA2013111392892), Nov 13, 2013: ISOLATION VALVE. FAILED. DURING RT ENGINE START, APU DUCT PRESSURE AT 10 PSI, CYCLED LT ENGINE BLEED, PRESSURE RECOVERED BUT AT RT ENGINE START GETTING MAX 15% N2 WITH APU PNEU PRESSURE
- [SDR CALA2013100391697](https://openairdocs.org/sdr/CALA2013100391697), Oct 2, 2013: WARNING SYSTEM. ACTIVATED. LT ELEV PCU STATUS. UNABLE TO CLEAR MESSAGE. CYCLED BREAKERS, CYCLED ALT HYD SWITCHES & RAN ELEVATORS. MESSAGE DID NOT CLEAR, APPLIED MEL 2721D. PARTS 643-9091 
- [SDR CALA2013092791520](https://openairdocs.org/sdr/CALA2013092791520), Sep 24, 2013: COVER. UNSECURE. EMERGENCY FLOOR LIGHTING BY FWD CLOSET IS COMING UP. SECURED THE EMERGENCY EXIT LIGHT COVER FIRST CLASS CLOSET.
- [SDR CALA2013082990850](https://openairdocs.org/sdr/CALA2013082990850), Aug 29, 2013: RELAY. FAULTY. AUXILIARY POWER UNIT DOOR STATUS MESSAGE AFTER AUXILIARY POWER UNIT STARTED AFTER LANDING. VERIFIED THAT DOOR DOES NOT BIND. DOOR OPERATIONS CHECKED OK. ERASED 
- [SDR CALA2013082790785](https://openairdocs.org/sdr/CALA2013082790785), Aug 26, 2013: OXYGEN MASK. LEAKING. THE CAPTAINS O2 MASK HARNESS SECURING HOSE HAS AIR LEAK. SWAPPED O2 MASK WITH 1ST OBSERVERS SEAT. 1ST OBSERVERS SEAT INOPERATIVE IAW MEL. CAPTAIN'S MASK OPERATI
- [SDR CALA2013072990029](https://openairdocs.org/sdr/CALA2013072990029), Jul 29, 2013: BLEED AIR SYS. MALFUNCTIONED. AFTER LT ENGINE START, APU PRESSURE DROPPED TO ZERO. REPLACED APU CHECK VALVE IAW MM 49-11-00. LEAK CHECKED, RAN ENGINES TWICE AT 5 MINUTE IDLE RUN VERIFIED NO 
- [SDR UALA2013071805059](https://openairdocs.org/sdr/UALA2013071805059), Jul 17, 2013: BULB. MALFUNCTIONED. LT WING EMERGENCY EXIT LIGHT ON STROBING. REPLACED BULB.
- [SDR UALA2013071805057](https://openairdocs.org/sdr/UALA2013071805057), Jul 17, 2013: MICROPHONE. BROKEN. F/O MICROPHONE BROKEN. REPLACED.
- [SDR UALA2013062704496](https://openairdocs.org/sdr/UALA2013062704496), Jun 26, 2013: WIRE. BROKEN. F/O'S HAND MICROPHONE INOPERATIVE. FOUND BROKEN WIRE AT HANDSET JACK, REPAIRED, OPS OK.
- [SDR UALA2013060603925](https://openairdocs.org/sdr/UALA2013060603925), Jun 5, 2013: CLAMP. BROKEN. LEFT SIDE APU FLEX DUCT INBD CLAMP BROKEN. INSTALLED NEW CLAMP, LEAK CHECKED OK.
- [SDR UALA2013060403873](https://openairdocs.org/sdr/UALA2013060403873), Jun 3, 2013: OIL SYSTEM. OVERSERVICED. APU AUTO SHUTDOWN. FOUND APU OVERSERVICED CAUSING HOT OIL TEMP. SERVICED OIL TO PROPER LEVEL, OPS GOOD.
- [SDR UALA2013060403872](https://openairdocs.org/sdr/UALA2013060403872), Jun 3, 2013: LIGHT. UNKNOWN. EXIT LIGHT FLICKERS AT ROW 21A. COULD NOT DUPLICATE ON GROUND. ACCOMPLISHED OPS TEST IAW AMM. EMERGENCY EXIT SIGNS ALL WORK NORMALLY.
- [SDR UALA2013052803695](https://openairdocs.org/sdr/UALA2013052803695), May 28, 2013: SENSOR. FAULTY. FLIGHT DECK TEMP SLOWLY RISES TO HOT WITH FLIGHT DECK TEMP SWITCH IN AUTO. OK IN OFF POSITION. SUP: USED OPTION 1 TURNED OFF TRIM SWITCH AND OFF LIGHT ON TRIM V
- [SDR UALA2013052803684](https://openairdocs.org/sdr/UALA2013052803684), May 23, 2013: WINDOW FRAME. LOOSE. WINDOW ON 2R DOOR HAS LOOSE FRAME. SECURED DOOR WINDOW FRAME.
- [SDR UALA2013050603159](https://openairdocs.org/sdr/UALA2013050603159), May 3, 2013: O-RING. DAMAGED. HYD LEAK IN 'C' SYS. REPLACED O-RING OTBD SPOILER RIGHT SIDE, OPS CHECKED. LEAK CHECK NORMAL NR 12 SPOILER.
- [SDR UALA2013042902992](https://openairdocs.org/sdr/UALA2013042902992), Apr 28, 2013: SKIN. DENTED. AFT FUSELAGE SKIN DENTED BS 1710, S13-14R. DENT FOUND TO BE OUT OF LIMITS PER SRM 53-00-01. CUT OUT DAMAGED AREA AND FABRICATED A REPAIR DOUBLER AND FILLER IAW 
- [SDR UALA2013042602932](https://openairdocs.org/sdr/UALA2013042602932), Apr 25, 2013: HANDSET. DEFECTIVE. FLIGHT CREW INTERPHONE INOP AT DOOR 4. NEED NEW HANDSET. REPLACED FAIL HANDSET, OPS CHECK GOOD.
- [SDR UALA2013041802672](https://openairdocs.org/sdr/UALA2013041802672), Apr 17, 2013: PRESSURE SWITCH. FAULTY. AFTER PUSH AND ENG START CENTER HYD PUMP 2 PRESS LIGHT ILLUM WITH SWITCH ON (DEFERRED PER SAMC). REPLACED PRESSURE SWITCH PUMP 2 CENTER, PER AMM, OPS CHECK OKAY
- [SDR UALA2013041702632](https://openairdocs.org/sdr/UALA2013041702632), Apr 16, 2013: LIGHT. DISCONNECTED. EEL STRIP FLEX LAMP SECTION DISCONNECTED AT SEAT 12ABC. REPORTED BY FLIGHT CREW. SECTION OF EEL LIGHT FLEX LAMP PER MM. OPS CHECKED NORMAL.
- [SDR UALA2013032001747](https://openairdocs.org/sdr/UALA2013032001747), Mar 20, 2013: COVER. UNSECURE. EMERGENCY LIGHT NEAR CLOSET AT 1L NOT SECURE. SECURED LIGHT COVER, OPS GOOD.
- [SDR UALA2013030701382](https://openairdocs.org/sdr/UALA2013030701382), Mar 7, 2013: MINITEL. MALFUNCTIONED. CAPTAIN'S AUDIO INOPERATIVE. REPLACED BOTH MINITELS, OPS CHECK OKAY.
- [SDR UALA2013022601151](https://openairdocs.org/sdr/UALA2013022601151), Feb 26, 2013: SWITCH. FAULTY. AFTER LANDING, RECEIVED A POWER TRANSFER UNIT STATUS MESSAGE . FOUND PTU INDICATION SWITCH FAULTY. REPLACED SWITCH PER AMM. OPS AND LEAK CHECKED GOOD. NO EICAS 
- [SDR UALA2013021400882](https://openairdocs.org/sdr/UALA2013021400882), Feb 14, 2013: EEC. MALFUNCTIONED. RIGHT ENGINE PRI CONT EICAS MESSAGE AFTER START. CREW CONTACTED TOMC. EPCS PAGE SHOWED P PMA-EEC. FAULT WAS ERASED PER TOMC DIRECTION AND DID NOT RETURN WITH AL

All 245: https://openairdocs.org/deregistered/N550UA-2017-03-13/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 19980507018649I](https://openairdocs.org/incident/19980507018649I), May 7, 1998: Boeing 757222 (N550UA), Kansas City, MO. Aborted takeoff due to right anti-ice valve light. Icing conditions fore casted. Flight cancelled, valve replaced.
- [Incident 19950531043179I](https://openairdocs.org/incident/19950531043179I), May 31, 1995: Boeing 757222 (N550UA), Cleveland, OH. Narrative: ual 511 was instructed to taxi onto runway 28 to hold short of runway 23L. The pilot acknowledged the instructions. Ual 511 taxied onto runway 23L…

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