# Service difficulty reports: N434UP

A list on [N434UP](https://openairdocs.org/aircraft/N434UP.md).

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

Page 1 of 3 · 108 reports

- [SDR IPXA2026100134196](https://openairdocs.org/sdr/IPXA2026100134196.md): Pbe · open · Oct 1, 2026 · N434UP · Boeing 75724APF · Emergency Equipment
  > EMERGENCY ESCAPE PORTABLE BREATHING PBE NEEDS REPLACEMENT. REPLACED SMOKE HOOD PBE IAW 25-64-00
- [SDR IPXA2026090366928](https://openairdocs.org/sdr/IPXA2026090366928.md): Circuit Breaker · tripped · Sep 3, 2026 · N434UP · Boeing 75724APF · Ice/Rain Protection System Wiring
  > AIR TURN BACK, WHILE ENROUTE, EICAS MSG GND EQUIPMENT COOLING RAN QRH AND PUT GND EQUIPMENT IN ALT. PROBE HEAT EICAS MSG. RT FWD FUEL PUMP AND L AFT FUEL PUMP EICAS MSGS. STATUS MSG EQPT COOLING FAN. RESET CB 310 AND RAN ALL SYSTEMS COMING OF AC BUS L SECTIO
- [SDR IPXA2026032070105](https://openairdocs.org/sdr/IPXA2026032070105.md): Check Valve · faulted · Mar 14, 2026 · N434UP · Boeing 75724APF · Aircraft Fuel Distribution System
  > FUEL IMBALANCE IN FLIGHT OF 1900LBS WITH FUEL CONFIG MESSAGE. 7.2 LBS LEFT TANK, 9.1 LBS RIGHT TANK. ALL ENGINE INSTRUMENTS NORMAL INCLUDING FUEL FLOW. FMC CALCULATED AND TOTALIZER FUEL WITHIN 100 LBS NO FUEL IMBALANCE NOTED DURING ENGINE RUNS. REMOVED AND RE
- [SDR IPXA2026031670105](https://openairdocs.org/sdr/IPXA2026031670105.md): Fuel Sys · out of balance · Mar 14, 2026 · N434UP · Boeing 75724APF · Aircraft Fuel Distribution System
  > FUEL IMBALANCE IN FLIGHT OF 1900LBS WITH FUEL CONFIG MESSAGE. 7.2 LBS LEFT TANK, 9.1 LBS RIGHT TANK. ALL ENGINE INSTRUMENTS NORMAL INCLUDING FUEL FLOW.
- [SDR IPXA2025071398635](https://openairdocs.org/sdr/IPXA2025071398635.md): Heat Exchanger · inoperative · Jul 12, 2025 · N434UP · Boeing 75724APF · Turbine Engine Oil System
  > DURING CLIMB LEFT ENG OIL TEMP IN AMBER BAND. QRH PROCEDURE WITH THROTTLE ALMOST IDLE LOWERED TEMP TO NORMAL RANGE. COMPLETED K ALERT ON BAR CODE T3F18E0071FDT. PERFORMED HIGH POWER ENG RUN RFEF 757 M/M 71-00-00- 501. LEFT ENG OIL TEMP CHKED WITHIN LIMITS.
- [SDR IPXA2025071670051](https://openairdocs.org/sdr/IPXA2025071670051.md): Unknown · noise · Jul 11, 2025 · N434UP · Boeing 75724APF · Fuselage Structure (General)
  > LOUD NOISE SHORTLY AFTER LIFT OFF STARTED AT A LOW FREQUENCY THEN SLOWLY INCREASED IN PITCH, SOUNDED LIKE AN ENGINE SLOWLY REVING TO REDLINE. NOISE ENDED AT 5000€™. SUSPECT CREW ENTRY DOOR SEAL PRESSURIZED AIRCRAFT PER MM 21-30-00, NO LEAKS OR KOOKY NOISES N
- [SDR IPXA2025071170051](https://openairdocs.org/sdr/IPXA2025071170051.md): Unknown · noise · Jul 11, 2025 · N434UP · Boeing 75724APF · Standard Practices/Structures
  > LOUD NOISE SHORTLY AFTER LIFT OFF STARTED AT A LOW FREQUENCY THEN SLOWLY INCREASED IN PITCH, SOUNDED LIKE AN ENGINE SLOWLY REVING TO REDLINE. NOISE ENDED @ 5000€™. SUSPECT CREW ENTRY DOOR SEAL PRESSURIZED AIRCRAFT PER MM 21-30-00, NO LEAKS OR KOOKY NOISES NO
- [SDR IPXA2024091117131](https://openairdocs.org/sdr/IPXA2024091117131.md): Escape Reel · misrouted · Sep 10, 2024 · N434UP · Boeing 75724APF · Emergency Equipment
  > ALL 6 EMER DECENT REEL ATTACHMENT CABLES MIS-ROUTED "BACKWARDS & TWISTED TOGETHER". UN-TWISTED AND RE-ROUTED ALL DECENT CABLES TO PROPER ALLIGNMENT AND SEQUENCE PER AMM 25-61-02-201 FIG 201
- [SDR IPXA2023071385634](https://openairdocs.org/sdr/IPXA2023071385634.md): Stringer · dented · Jun 24, 2023 · N434UP · Boeing 75724APF · Fuselage Main, Longeron/Stringer
  > AGING ACFT FAULT- TWO DENTS ON RIGHT SIDE FWD FUSELAGE, JUST OUTBD OF NLG NOT LISTED ON THE ADM. DOT 8-007. ACCOMPLISH REPAIR PER EO-87539-REQ1 AND VT-MAE EA 757-5310-27-A3277, REV. -.
- [SDR IPXA2023072563100](https://openairdocs.org/sdr/IPXA2023072563100.md): Frame · dented · Jun 23, 2023 · N434UP · Boeing 75724APF · Fuselage Main, Frame
  > AFT CARGO COMPT, STA 1520 L/H, FRAME AT S-25L, FOUND DENT. INSTALLATION OF NEW REPAIR SPLICE COMPLETE. JOB COMPLETE.
- [SDR IPXA2023071364864](https://openairdocs.org/sdr/IPXA2023071364864.md): Stringer · dented · Jun 23, 2023 · N434UP · Boeing 75724APF · Fuselage Main, Longeron/Stringer
  > FAULT: NEW FOUND DENT ON FR 1580 BETWEEN STR-25R AND STR-26R. SUPPLEMENTAL INSPECTION REQUIREMENTS DEFERRED PER SRM 53-00-07-2R-5, TABLE #3 FOR ZONE #3
- [SDR IPXA2023071364983](https://openairdocs.org/sdr/IPXA2023071364983.md): Stringer · dented · Jun 23, 2023 · N434UP · Boeing 75724APF · Fuselage Main, Longeron/Stringer
  > FAULT: NEW FOUND DENT AT FR1280 AND STR-25L SUPPLEMENTAL INSPECTIONS REQUIREMENTS OF REPAIR DEFERRED PER SRM 53-00-07-2R-6, DETAIL #3, TABLE #3
- [SDR IPXA2023071364946](https://openairdocs.org/sdr/IPXA2023071364946.md): Stringer · dented · Jun 23, 2023 · N434UP · Boeing 75724APF · Fuselage Main, Longeron/Stringer
  > NEW FOUND DENTON FR1260 AT STR-25L SUPPLEMENTAL INSPECTION REQUIRMENTS DEFERRED PER SRM 53-00-07-2R-6, DETAIL #3, TABLE #3.
- [SDR IPXA2023071364736](https://openairdocs.org/sdr/IPXA2023071364736.md): Stringer · dented · Jun 23, 2023 · N434UP · Boeing 75724APF · Fuselage Structure (General)
  > FAULT: NEW FOUND DENT ON FR 1560 BETWEEN STR 25R AND 26R. VERIFIED ALL WORK WAS ACCOMPLISHED IAW UPS EO-87523-REQ1 AND VT MAE EA 757-5360-27 REV-.
- [SDR IPXA2023071338826](https://openairdocs.org/sdr/IPXA2023071338826.md): Stringer · damaged · Jun 21, 2023 · N434UP · Boeing 75724APF · Fuselage Main, Structure
  > FAULT: DURING INSPECTION ON EO-73926-JIC001 AN EXISTING REPAIR WAS FOUND AT STA 1300 LH S24-26L. ALTERNATE INSPECTION REQUIRED. WORK COMPLETED
- [SDR IPXA2023071327993](https://openairdocs.org/sdr/IPXA2023071327993.md): Stringer · dented · Jun 20, 2023 · N434UP · Boeing 75724APF · Fuselage Structure (General)
  > LT. SIDE EXTERIOR FUSELAGE BSTA 1640 STGR S-16AL FOUND (01 EA) O/B DENT. DOT 68-01 APU PNEUMATIC DUCT REQUIRES LEAK CHECK
- [SDR IPXA2021061870750](https://openairdocs.org/sdr/IPXA2021061870750.md): Frame · dented · Jun 18, 2021 · N434UP · Boeing 75724APF · Fuselage Main, Frame
  > INSPECTION TYPE:SEG3FWD CARGO STA 660, RH FRAME HAS A DENT ON INNER FLANGE BETWEEN FLOOR AND SIDEWALL STANCHIONREPAIRED IAW UPS EO B757-5310-80729-A AND EA 757-5330-27-A2615, REV-
- [SDR IPXA2021061770690](https://openairdocs.org/sdr/IPXA2021061770690.md): Floor Panel · damaged · Jun 17, 2021 · N434UP · Boeing 75724APF · Fuselage Floor Panel
  > INSPECTION TYPE:SEG3MAIN CARGO COMPARTMENT, FLOOR PANEL 231XCF IS DAMAGEDFABBED PANEL 231XCF FROM 5024N400001SS-G, BATCH# 3605469 PER SREO B757-5320-9692-K
- [SDR IPXA2021061270460](https://openairdocs.org/sdr/IPXA2021061270460.md): Floor Panel · damaged · Jun 12, 2021 · N434UP · Boeing 75724APF · Fuselage Floor Panel
  > INSPECTION TYPE:SEG3MAIN CARGO COMPARTMENT, FLOOR PANEL 232XGF IS DAMAGEDFABBED PANEL 232XGF FROM 5024N400001SS-G, BATCH# 3605469 PER SREO B757-5320-9692-K
- [SDR IPXA2021061270459](https://openairdocs.org/sdr/IPXA2021061270459.md): Floor Panel · damaged · Jun 12, 2021 · N434UP · Boeing 75724APF · Fuselage Floor Panel
  > INSPECTION TYPE:SEG3MAIN CARGO COMPARTMENT, FLOOR PANEL 231XEF IS DAMAGEDFABBED PANEL 231XEF FROM 5024N400001SS-G, BATCH# 3605469 PER SREO B757-5320-9692-K
- [SDR IPXA2021061270458](https://openairdocs.org/sdr/IPXA2021061270458.md): Floor Panel · damaged · Jun 12, 2021 · N434UP · Boeing 75724APF · Fuselage Floor Panel
  > INSPECTION TYPE:SEG3MAIN CARGO COMPARTMENT, FLOOR PANEL 231XBF IS DAMAGEDFABBED PANEL 231XBF FROM 5024N400001SS-G, BATCH# 3605469 PER SREO B757-5320-9692-K
- [SDR IPXA2021061270457](https://openairdocs.org/sdr/IPXA2021061270457.md): Floor Panel · damaged · Jun 12, 2021 · N434UP · Boeing 75724APF · Fuselage Floor Panel
  > INSPECTION TYPE:SEG3MAIN CARGO COMPARTMENT, FLOOR PANEL 221XCF IS DAMAGEDFABBED PANEL 221XCF FROM 5024N400001SS-G, BATCH# 3605469 PER SREO B757-5320-9692-K
- [SDR IPXA2019090646407](https://openairdocs.org/sdr/IPXA2019090646407.md): Unknown · odor · Sep 5, 2019 · N434UP · Boeing 75724APF · Air Distribution System
  > INSPECTION TYPE:N/A AT TOP OF CLIMB (FL380) STARTED SMELLING A STRONG ODOR LIKE BURNT CARDBOARD IN THE COCKPIT. RT PACK WAS ON LT PACK WAS OFF. NO VISIBLE SMOKE DETECTED. WE WENT ON OXYGEN. WE SWITCHED OPERATING PACKS AND ODOR WENT AWAY IN A FEW MINUTES. RAN A
- [SDR IPXA2019060342784](https://openairdocs.org/sdr/IPXA2019060342784.md): Floorbeam · corroded · Jun 3, 2019 · N434UP · Boeing 75724APF · Fuselage Main, Floor Beam
  > INSPECTION TYPE:C1MAIN DECK FLOOR BEAM SUPPORT STA 1600 HAS CORROSION. REPAIRED IAW SRM 53-00-51-2R-6
- [SDR IPXA2018011225392](https://openairdocs.org/sdr/IPXA2018011225392.md): Bulb · inoperative · Jan 11, 2018 · N434UP · Boeing 75724APF · Emergency Lighting
  > EMERGENCY EXIT HAS THREE BULBS OUT. INSTALLED THE BULBS IAW AMM 33-51-01-2
- [SDR IPXA2017080920322](https://openairdocs.org/sdr/IPXA2017080920322.md): Controller · malfunctioned · Aug 8, 2017 · N434UP · Boeing 75724APF · Cabin Pressure Controller
  > CABIN ALTITUDE AUTO 2 MESSAGE DISPLAYED. LOSS OF CABIN PRESSUE. EMERGENCY DECLARED. REPLACED THE NR 2 CABIN PRESSURE CONTROLLER IAW FIM 21-30-00-815-803, AND AMM 21-31-02-0401. OPS NORMAL.
- [SDR IPXA2017062418563](https://openairdocs.org/sdr/IPXA2017062418563.md): Skin · damaged · Jun 7, 2017 · N434UP · Boeing 75724APF · Fuselage Main, Plate/Skin
  > INSPECTION TYPE: C-13, PREVIOUS BLEND OUT BS 230, RBL 24. REPAIRED IAW REO G20883 REV IR AND EO B757-5330-64691-A.
- [SDR IPXA2017062418561](https://openairdocs.org/sdr/IPXA2017062418561.md): Panel · dented · Jun 7, 2017 · N434UP · Boeing 75724APF · APU Cowling/Containment
  > INSPECTION TYPE: C-13, PANEL ASSEMBLY DENTED. REPAIRED IAW SRM 51-70-10-2R, REO-G20871, REV A AND EO B757-5330-64686A.
- [SDR IPXA2015121596758](https://openairdocs.org/sdr/IPXA2015121596758.md): Stringer · dented · Dec 12, 2015 · N434UP · Boeing 75724APF · Fuselage Main, Longeron/Stringer
  > FUSELAGE STRINGER DENTED AT BS 1550, STR 26L. REPAIRED DENTED STR 26L AT BS 1550 IAW SRM 53-00-03, FIGURE 201, REPAIR 1, SHEET 8 AND EO B757-5310-59426-A.
- [SDR IPXA2015121696766](https://openairdocs.org/sdr/IPXA2015121696766.md): Stringer · dented · Dec 12, 2015 · N434UP · Boeing 75724APF · Fuselage Main, Longeron/Stringer
  > INSPECTION TYPE: SERVICE, FUSELAGE STRINGER DENTED AT BS 1550, STR 27L. REPAIRED DENTED STRINGER 27L AT BS 1550 IAW SRM 53-00-03, FIGURE 201, REPAIR 1, SHEET 8.
- [SDR IPXA2015121696783](https://openairdocs.org/sdr/IPXA2015121696783.md): Skin · damaged · Dec 10, 2015 · N434UP · Boeing 75724APF · Fuselage Main, Plate/Skin
  > FUSELAGE SKIN DAMAGED AT BS 1550, STR 25L - 29L, REMOVED DAMAGE AND REPAIRED IAW EO B757-5330-59399-A.
- [SDR IPXA2015063090702](https://openairdocs.org/sdr/IPXA2015063090702.md): Floor Panel · damaged · Jun 30, 2015 · N434UP · Boeing 75724APF · Fuselage Floor Panel
  > INSPECTION TYPE:C, MCD FLOOR PANEL 231XJF DAMAGED. FABRICATED A NEW FLOOR PANEL IAW SREO B757-5320-9692-H.
- [SDR IPXA2015063090701](https://openairdocs.org/sdr/IPXA2015063090701.md): Floor Panel · damaged · Jun 30, 2015 · N434UP · Boeing 75724APF · Fuselage Floor Panel
  > INSPECTION TYPE: C, MCD FLOOR PANEL 231XFF DAMAGED. FABRICATED A NEW FLOOR PANE IAW SREO B757-5320-9692-H. 2.
- [SDR IPXA2015062990658](https://openairdocs.org/sdr/IPXA2015062990658.md): Floor Panel · damaged · Jun 21, 2015 · N434UP · Boeing 75724APF · Fuselage Floor Panel
  > INSPECTION TYPE: C, MCD FLOOR PANEL 242XKF DAMAGED. FABRICATED A NEW FLOOR PANEL IAW SREO B757-5320-9692-H.
- [SDR IPXA2015062990657](https://openairdocs.org/sdr/IPXA2015062990657.md): Floor Panel · damaged · Jun 21, 2015 · N434UP · Boeing 75724APF · Fuselage Miscellaneous Structure
  > INSPECTION TYPE:C, MCD FLOOR PANEL 241XLF DAMAGED. FABRICATED A NEW FLOOR PANEL IAW SREO B757-5320-9692-H.
- [SDR IPXA2015062990656](https://openairdocs.org/sdr/IPXA2015062990656.md): Floor Panel · damaged · Jun 21, 2015 · N434UP · Boeing 75724APF · Fuselage Floor Panel
  > INSPECTION TYPE:C, MCD FLOOR PANEL 241XFF DAMAGED. FABRICATED A NEW FLOOR PANEL IAW SREO B757-5320-9692-H. 2.
- [SDR IPXA2015063090676](https://openairdocs.org/sdr/IPXA2015063090676.md): Floor Panel · damaged · Jun 21, 2015 · N434UP · Boeing 75724APF · Fuselage Floor Panel
  > INSPECTION TYPE:CMCS, FLOOR PANEL 241XMF DAMAGED. FABRICATED A NEW FLOOR PANEL IAW SREO B757-5320-9692-H.
- [SDR IPXA2015062990650](https://openairdocs.org/sdr/IPXA2015062990650.md): Floor Panel · damaged · Jun 21, 2015 · N434UP · Boeing 75724APF · Fuselage Floor Panel
  > INSPECTION TYPE: C, FLOOR PANEL 242XLF DAMAGED. FABRICATED A NEW FLOOR PANEL IAW SREO B757-5320-9692-H.
- [SDR IPXA2015062990648](https://openairdocs.org/sdr/IPXA2015062990648.md): Floor Panel · damaged · Jun 21, 2015 · N434UP · Boeing 75724APF · Fuselage Floor Panel
  > INSPECTION TYPE:C, FLOOR PANEL 242XDF DAMAGED. FABRICATED A NEW FLOOR PANEL IAW SREO B757-5320-9692-H.
- [SDR IPXA2015062990647](https://openairdocs.org/sdr/IPXA2015062990647.md): Floor Panel · damaged · Jun 21, 2015 · N434UP · Boeing 75724APF · Fuselage Floor Panel
  > INSPECTION TYPE: C, FLOOR PANEL 241XBF DAMAGED. FABRICATED A NEW FLOOR PANEL IAW SREO B757-5320-9692-H.
- [SDR IPXA2015050488629](https://openairdocs.org/sdr/IPXA2015050488629.md): Seal · damaged · May 3, 2015 · N434UP · Boeing 75724APF · Passenger/Crew Doors
  > MAIN ENTRY DOOR. AFT MIDDLE SECTION OF SEAL HAS A HOLE IN IT. REPAIRED DAMAGED SECTION OF SEAL REF AMM 52-09-00-308-001.
- [SDR IPXA2014062383390](https://openairdocs.org/sdr/IPXA2014062383390.md): Bulb · inoperative · Jun 20, 2014 · N434UP · Boeing 75724APF · Emergency Lighting
  > EMERGENCY EXIT LIGHT ASSY HAS BULBS INOPERATIVE. REPLACED THE INOPERATIVE BULBS IN THE EMERGENCY EXIT LIGHT ASSY IAW AMM 33-51-01-2.
- [SDR IPXA3580304](https://openairdocs.org/sdr/IPXA3580304.md): Wire · burned · Sep 18, 2013 · N434UP · Boeing 75724APF · Light System Wiring
  > INSPECTION ASE, UPON APPROACH WITH POWER STRONG ACRID RUBBER BURNING ODOR, LASTED APPROX 45 SEC TO 1 MIN, THEN DISSIPATED. FOUND RT TURNOFF LIGHT SWITCH WIRES BURNED, REMOVED PANEL LIGHT CTL LOCKOUT ALL C/B'S FOR PANEL LIGHT CTL. FOUND RT TURN OFF LIGHT SWIT
- [SDR IPXA3580134](https://openairdocs.org/sdr/IPXA3580134.md): Eec · malfunctioned · Sep 5, 2013 · N434UP · Boeing 75724APF · Fuel Controlling System
  > RT ENGINE INFLIGHT SHUTDOWN, DUE TO HIGH OIL TEMP. COMPLIED WITH HIGH OIL TEMP PER MM 72-00-00-206-547-P00. COMPLETED INSPECTION PER MM 72-00-00-206-547-P00. EEC REPLACED. RAN ENGINE AT MULTIPLE THROTTLE SETTINGS FOR 30 MINUTES. ALL ENGINE PARAMTERS NORMAL
- [SDR IPXA13579194](https://openairdocs.org/sdr/IPXA13579194.md): Floor Panel · damaged · Jun 25, 2013 · N434UP · Boeing 75724APF · Fuselage Floor Panel
  > INSPECTION TYPE:C11S, FLOOR PANEL 241XGF IS DAMAGED. FABRICATED NEW FLOOR PANEL IAW B757-532 0-9692-H.
- [SDR IPXA13579193](https://openairdocs.org/sdr/IPXA13579193.md): Floor Panel · damaged · Jun 25, 2013 · N434UP · Boeing 75724APF · Fuselage Floor Panel
  > INSPECTION TYPE:C11S, MCD FLOOR PANEL 231XRF DAMAGED. FABRICATED NEW FLOOR PANEL IAW EO B757- 5320-9692-H.
- [SDR IPXA13579192](https://openairdocs.org/sdr/IPXA13579192.md): Floor Panel · damaged · Jun 25, 2013 · N434UP · Boeing 75724APF · Fuselage Floor Panel
  > INSPECTION TYPE:C11S, MAIN CARGO DECK FLOOR PANEL 242XJF IS DAMAGED. FABRICATED NEW FLOOR PANEL IAW EO B757- 5320-9692-H.
- [SDR IPXA13579191](https://openairdocs.org/sdr/IPXA13579191.md): Floor Panel · damaged · Jun 25, 2013 · N434UP · Boeing 75724APF · Fuselage Floor Panel
  > INSPECTION TYPE:C11S, MAIN CARGO DECK FLOOR PANEL 252XPF DAMAGED. FABRICATED NEW FLOOR PANEL IAW EO B757-5320-9 692-H.
- [SDR IPXA13579190](https://openairdocs.org/sdr/IPXA13579190.md): Floor Panel · broken · Jun 25, 2013 · N434UP · Boeing 75724APF · Fuselage Floor Panel
  > INSPECTION TYPE:C11S, MAIN CARGO DECK FLOOR PANEL 251XMF IS BROKEN. FABRICATED NEW FLOOR PANEL IAW EO B757- 5320-9692-H.
- [SDR IPXA13579188](https://openairdocs.org/sdr/IPXA13579188.md): Floor Panel · damaged · Jun 25, 2013 · N434UP · Boeing 75724APF · Fuselage Floor Panel
  > INSPECTION TYPE:C11S, MAIN CARGO DECK FLOOR PANEL 252XQF IS DAMAGED. FABRICATED NEW FLOOR PANEL IAW EO B757- 5320-9692-H.

Next page: https://openairdocs.org/aircraft/N434UP/reports.md?page=2

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
WHERE n_number = 'N434UP' AND registry_match = 'registration'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/aircraft/N434UP/reports

---
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