# Service difficulty reports: N351UP

A list on [N351UP](https://openairdocs.org/aircraft/N351UP.md).

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

- [SDR IPXA2026101806238](https://openairdocs.org/sdr/IPXA2026101806238.md): Skin · punctured · Oct 18, 2026 · N351UP · Boeing 76734AF · Leading Edge Devices
  > DURING WALKAROUND, FOUND A PUNCTURE AT SLAT NR 10 (WS 624). SLAT CRACKED AT SEVERAL SPOTS, NUMEROUS RIVETS SHEARED. R/R SLAT #10 (STATION 624) IAW MM 27-81-02-024. ACCOMPLISHED OPS TEST PER MM 27-81-02/501 TEST FAIL. DUE TO NO SLAT TARGETS. S296,S310 SENSOR TA
- [SDR IPXA2026033018198](https://openairdocs.org/sdr/IPXA2026033018198.md): Counterbalance · out of adjust · Mar 28, 2026 · N351UP · Boeing 76734AF · Passenger/Crew Doors
  > FORWARD ENTRY DOOR IS HEAVIER AND HARDER TO OPEN THAN OTHER FORWARD ENTRY DOORS. ADJUSTED THE COUNTERBALANCE IAW AMM 52-12-16.
- [SDR IPXA2026032379778](https://openairdocs.org/sdr/IPXA2026032379778.md): Door · binding · Mar 20, 2026 · N351UP · Boeing 76734AF · Passenger/Crew Doors
  > FORWARD ENTRY DOOR IS VERY HEAVY TO LIFT. PERFORMED COUNTERBALANCE SYSTEM TEST PER AMM 52-12-16-735, LUBED DOOR TRACKS, OPS CHECK GOOD.
- [SDR IPXA2026030774969](https://openairdocs.org/sdr/IPXA2026030774969.md): Floor Panel · cracked · Mar 2, 2026 · N351UP · Boeing 76734AF · Fuselage Floor Panel
  > AFT CARGO FLOOR PANEL CRACK AT STA 1327 BL 0. INSTALL NEW PANEL I.A.W SRM 51-40-02-0G REV.94.
- [SDR IPXA2026030561754](https://openairdocs.org/sdr/IPXA2026030561754.md): Former · cracked · Mar 1, 2026 · N351UP · Boeing 76734AF · Wing Main, Frame Structure
  > NOSE FORMER, LT WING L/E OTBD DOOR LINK INNER FORMER OF THE CRACK AT OSS 499. REMOVED DAMAGED FORMER IAW SRM 51-40-02-0G, REV 94. INSTALLED NEW FORMER IAW SRM 51-40-02-0G, REV 94, AND DWG 114T2161, SHT 6, REV -, AND SREO-50900-REQ001, REV2. JOB COMPLETE
- [SDR IPXA2026030561788](https://openairdocs.org/sdr/IPXA2026030561788.md): Former · cracked · Mar 1, 2026 · N351UP · Boeing 76734AF · Wing Main, Frame Structure
  > LEFT WING L/E ATTACH INTERNAL FORMER CRACKED AT OSS 441, NR 5 SLAT. REMOVED DAMAGE FORMER IAW SRM 51-40-02-0G, REV 94. INSTALLED NEW FORMER IAW SRM 51-40-02-0G REV 94, AND DWG 114T2241 SH. 4 REV -, AND SREO-54290-REQ1, REV 2. JOB COMPLETED.
- [SDR IPXA2026030462840](https://openairdocs.org/sdr/IPXA2026030462840.md): Support Bracket · cracked · Mar 1, 2026 · N351UP · Boeing 76734AF · Wing Miscellaneous Structure
  > CRACKED BRACKET, LT WING L/E COMPARTMENT TORQUE TUBE SUPPORT BRACKET. INSTALLED NEW BRCKET I.A.W SRM 51-40-02-0G REV. 94 AND BOEING DWG NO. 114T1240 SH. 6 REV. -.
- [SDR IPXA2026030462846](https://openairdocs.org/sdr/IPXA2026030462846.md): Support Bracket · cracked · Mar 1, 2026 · N351UP · Boeing 76734AF · Leading Edge Devices
  > CRACKED SUPPORT, RT WING L/E NR.7 SLAT PNL NO. 611KB TORQUE TUBE SUPPORT. INSTALLED NEW BRCKET I.A.W SRM 51-40-02-0G REV. 94 AND BOEING DWG NO. 114T1240 SH. 6 REV. -.
- [SDR IPXA2026030647430](https://openairdocs.org/sdr/IPXA2026030647430.md): Seal · broken · Feb 28, 2026 · N351UP · Boeing 76734AF · Nacelle/Pylon, Main Frame
  > BROKEN - SPRING SEAL, PNL NO. 446CR (REPLACE) 1.REMOVED DAMAGE SEAL STRIP I.A.W SRM 51-40-02-0G REV.94. INSTALL NEW SEAL STRIP I.A.W SRM 51-40-02-0G REV.94 AND BOEING DWG NO:311T2570 SH 16 REV.-.
- [SDR IPXA2026030650740](https://openairdocs.org/sdr/IPXA2026030650740.md): Former · cracked · Feb 28, 2026 · N351UP · Boeing 76734AF · Wing Main, Frame Structure
  > CRACKED FORMER, RT WING L/E NO.8 SLAT INBD AUXILIARY TRACK OSS 441 (REPLACE) 1. REMOVED DAMAGE FORMER I.A.W SRM 51-40-02-0G REV. 94. INSTALLED NEW FORMER I.A.W SRM 51-40-02-0G REV. 94 AND BOEING DWG NO. 114T2241 SH. 4 REV. - AND UPS SREO-54290-REQ1 REV2.
- [SDR IPXA2026030347899](https://openairdocs.org/sdr/IPXA2026030347899.md): Bracket · chafed · Feb 28, 2026 · N351UP · Boeing 76734AF · Engine Thrust Reverser
  > CHAFING - BRACKET, NR 1 ENG LT THRUST REVERSER FWD LWR CLOSURE DOOR T/E AREA. INSTALLED NEW BRACKET I.A.W SRM 51-40-02-0G REV. 94 AND ST ENGINEERING IPC 78-32-21 REV. 94.
- [SDR IPXA2026030634122](https://openairdocs.org/sdr/IPXA2026030634122.md): Door · chafed · Feb 27, 2026 · N351UP · Boeing 76734AF · Engine Thrust Reverser
  > CHAFING DOOR, NO.1 ENG R/H T/R BLOWOUT DOOR FWD SIDE (REPLACE) REMOVED DAMAGE BLOWOUT DOOR I.A.W SRM 51-40-02-0G REV.94. INSTALL NEW BLOWOUT DOOR I.A.W SRM 51-40-02-0G REV.94 AND BOEING AIPC 78-31-51-03 REV.141 AND ST ENGINEERING CMM 78-32-02 REV.69. IPC VERIF
- [SDR IPXA2026030633793](https://openairdocs.org/sdr/IPXA2026030633793.md): Seal · broken · Feb 27, 2026 · N351UP · Boeing 76734AF · Nacelle/Pylon, Main Frame
  > BROKEN SPRING SEAL, PNL NO.446CL (REPLACE). REMOVED DAMAGE SEAL I.A.W SRM 51-40-02-0G REV.94 INSTALL NEW SEAL I.A.W SRM 51-40-02-0G REV 94 AND BOEING DWG NO:311T2570 SH 16 REV -.
- [SDR IPXA2026030629248](https://openairdocs.org/sdr/IPXA2026030629248.md): Bulkhead · cracked · Feb 27, 2026 · N351UP · Boeing 76734AF · Engine Thrust Reverser
  > CRACK-BULKHEAD, NO.2 ENG L/H T/R FWD TORQUE BOX UPPER SIDE SUPPORT. IAW AMM 70-50-00-912-001-H00 REV.147 INSTALLED THE TUBES AND CONNECTOR. I.A.W. AMM 78-31-00-725-005-H00 REV.147 PERFORMED OPERATIONAL TEST AND THE TEST WAS PASSED.
- [SDR IPXA2026030633729](https://openairdocs.org/sdr/IPXA2026030633729.md): Bracket · worn · Feb 27, 2026 · N351UP · Boeing 76734AF · Nacelle/Pylon Miscellaneous Structure
  > WORN-BRACKET, NO.2 PYLON AFT FAIRING DOOR HOLD OPEN ROD FWD SUPPORT BRACKET WORN (REPLACE) 1. REMOVED DAMAGE BRACKET I.A.W SRM 51-40-02-0G REV. 94. 2. INSTALLED NEW BRACKET I.A.W SRM 51-40-02-0G REV. 94 AND BOEING DWG NO. 313T2303 SH. 135 REV. -. 3. JOB COMPLE
- [SDR IPXA2026030328705](https://openairdocs.org/sdr/IPXA2026030328705.md): Angle · cracked · Feb 27, 2026 · N351UP · Boeing 76734AF · Nacelle/Pylon Miscellaneous Structure
  > CRACK-CLIP, NR 1 PYLON AFT FAIRING INNER AFT FRAME OUTBD SIDE SUPPORT CLIP (REPLACE) PAPER FINAL REVIEW COMPLETED
- [SDR IPXA2026030612569](https://openairdocs.org/sdr/IPXA2026030612569.md): Seal · broken · Feb 26, 2026 · N351UP · Boeing 76734AF · Nacelle/Pylon, Main Frame
  > BROKEN SEAL, NO. 1 PYLON AFT FAIRING PNL 436CL SPRING SEAL AREA. REMOVED DAMAGE SEAL STRIP I.A.W SRM 51-40-02-0G REV.94 2. INSTALL NEW SEAL STRIP I.A.W SRM 51-40-02-0G REV.94 AND BOEING DWG NO:311T2570 SH 16 REV.- 3. JOB COMPLETED
- [SDR IPXA2026030512672](https://openairdocs.org/sdr/IPXA2026030512672.md): Angle · worn · Feb 26, 2026 · N351UP · Boeing 76734AF · Nacelle/Pylon Miscellaneous Structure
  > NR 1 PYLON TORQUE BOX PANEL 436AR INNER CABLE SUPPORT AREA ANGLE. REMOVED DAMAGE ANGLE I.A.W SRM 51-40-02-0G REV. 94. 2. INSTALL NEW ANGLE I.A.W SRM 51-40-02-0G REV. 94 AND BOEING DWG NO: 311T1065 SH 8 REV. D. 3. JOB COMPLETED.
- [SDR IPXA2024053099671](https://openairdocs.org/sdr/IPXA2024053099671.md): Battery Pack · no test · May 29, 2024 · N351UP · Boeing 76734AF · Emergency Lighting
  > AIRCRAFT EMERGENCY LIGHT FOUND TO BE INOP ON TEST. AS PER FIM 33-51 FAULT TREE 803 EMERGENCY BATTERY PACK REPLACED I.A.W AMM 33-51-07-022-001/33-51-07-422-012 REV 142.0 OPS TEST PERFORMED AND FOUND TO BE SATIS.
- [SDR IPXA2024051799026](https://openairdocs.org/sdr/IPXA2024051799026.md): Seal · loose · May 16, 2024 · N351UP · Boeing 76734AF · Passenger/Crew Doors
  > ENTRY DOOR LOUD HISSING THRU 15,000€™. ENTRY DOOR LOWER SEAL FOUND TO BE LOOSE - UPON ARRIVAL.
- [SDR IPXA2024030446161](https://openairdocs.org/sdr/IPXA2024030446161.md): Bumper · missing · Feb 19, 2024 · N351UP · Boeing 76734AF · Passenger/Crew Doors
  > *** SUPPLEMENTAL SDR *** FAULT - FOUND FWD ENTRY DOORWAY LINING BUMPER MISSING (REPLACE) RI.A.W AMM 52-12-02-004-001 REV.141 AND AMM 52-21-02-404-025 REV.141 INSTALL BUMPER. JOB COMPLETED AND CONDITION CHECK NORMAL.
- [SDR IPXA2024021906161](https://openairdocs.org/sdr/IPXA2024021906161.md): Bumper · missing · Feb 19, 2024 · N351UP · Boeing 76734AF · Passenger/Crew Doors
  > **SDR FILED OPEN**FAULT - FOUND FWD ENTRY DOORWAY LINING BUMPER MISSING (REPLACE) OK TO WORK
- [SDR IPXA2023082966663](https://openairdocs.org/sdr/IPXA2023082966663.md): Door · leaking · Aug 29, 2023 · N351UP · Boeing 76734AF · Passenger/Crew Doors
  > CREW ENTRY DOOR LEAKED ON CLIMBOUT AS INDICATED BY A LOUD SIGNAL. ++LEAK SEEMED TO STOP ABOVE FL 300 DOOR SEAL FOUND SLIGHTLY LOOSE AND RETURNED TO PROPER POSITION IN CREW ENTRY DOOR REF AMM 52-09-01-242-019
- [SDR IPXA2022021278885](https://openairdocs.org/sdr/IPXA2022021278885.md): None · broken · Jan 30, 2022 · N351UP · Boeing 76734AF · Emergency Equipment
  > INSPECTION TYPE:C5FOUND NO.1 EMERGENCY ESCAPE DESCENT DEVICE SEAL BROKEN(S/N:8982)REPLACE NEW PARTS I.A.W 767 AMM 25-61-03-402-010 AND AMM 25-61-03-422-006 REV.135.03, INSTALL NEW EMERGENCY DESCENT DEVICES NO.1
- [SDR IPXA2021101975101](https://openairdocs.org/sdr/IPXA2021101975101.md): Pca · faulted · Oct 18, 2021 · N351UP · Boeing 76734AF · Aileron Control System
  > ATB, NO EMERGENCY DECLARED. ACFT OOS, ON TAKE OFF A/C FLAPS 5 DEG CLINGING OUT ACFT WANTED TO ROLL RT TOOK LEFT AILERON TO GO STRAIT WENT TO LEVEL FLIGHT EXTENDED FLAPS AND RT INBOARD AILERON FULL DEFLECTED AS FLAPS ARE ADDED ROLLS MORE RT. R & R LT INBRD
- [SDR IPXA2021071271590](https://openairdocs.org/sdr/IPXA2021071271590.md): Seal · leaking · Jul 12, 2021 · N351UP · Boeing 76734AF · Passenger/Crew Doors
  > INSPECTION TYPE:NABEGAN TO HEAR LOUD HISSING SOUND FROM BOTTOM OF CABIN ENTRY DOOR WHEN CLIMBING THRU 11000, SOUND DIMINISHED AT CRUISE, CABIN PRESSURE STAYED NORMAL.PERFORMED EXCESIVE CABIN PRESSURE LEAKAGE TEST IAW AMM 05-51-24-784-001, NO LEAKS NOTED AT THI
- [SDR IPXA2020081108867](https://openairdocs.org/sdr/IPXA2020081108867.md): Switch · inoperative · Aug 10, 2020 · N351UP · Boeing 76734AF · Emergency Lighting
  > EMERGENCY LIGHT SWITCH NOT SEATED PROPERLY. SECURED EMERGENCY LIGHT SWITCH. OPS CHECKED GOOD IAW MM 33-51-00-715-227.
- [SDR IPXA2020071457786](https://openairdocs.org/sdr/IPXA2020071457786.md): Door Seal · not seated · Jul 13, 2020 · N351UP · Boeing 76734AF · Passenger/Crew Doors
  > INSPECTION TYPE:N/A DURING INITIAL CLIMB LOUD SEAL NOISE COMING FROM ENTRY DOOR. RE-SEATED DOOR SEAL PER AMM 52-09-01. OPS CHECK GOOD PER 05-51-24.
- [SDR IPXA2020031653153](https://openairdocs.org/sdr/IPXA2020031653153.md): Floor Panel · damaged · Feb 14, 2020 · N351UP · Boeing 76734AF · Fuselage Floor Panel
  > INSPECTION TYPE:N/AMCD FLOOR PANEL HAS.750" HOLE IN TOP SKIN AND CORE AT POS 14R.REPAIRED FLOOR PANEL IAW SRM 53-00-50-2R PARA 4.C.
- [SDR IPXA2019111849118](https://openairdocs.org/sdr/IPXA2019111849118.md): Door · leaking · Nov 17, 2019 · N351UP · Boeing 76734AF · Fixed Inner Doors
  > INSPECTION TYPE:N/A*** ATB *** PRESSURIZATION LEAK FROM COCKPIT DOOR LOUD HISS UPON VISUAL INSPECTION DAY LIGHT SEAN MIDPOINT BOTTOM OF DOOR.REINSTALLED LOWER SECTION OF DOOR SEAL PER AMM 52-09-01-424-019.
- [SDR IPXA2019060542813](https://openairdocs.org/sdr/IPXA2019060542813.md): Seal · loose · Jun 3, 2019 · N351UP · Boeing 76734AF · Passenger/Crew Doors
  > ON CLIMB OUT, THE DOOR SEAL NOISE AROUND THE ENTRY DOOR WAS LOUDER THAN NORMAL AND IT CONTINUED TRU OUT THE FLIGHT. PRESSURIZATION INDICATIONS WERE NORMAL AND STABLE THRUOUT THE FLIGHT. NOISE IS MORE LOWER AFT CORNER AREA.FOUND LOWER EDGE OF L1 DOOR SEAL LOOSE
- [SDR IPXA2018101034889](https://openairdocs.org/sdr/IPXA2018101034889.md): Seal · loose · Oct 9, 2018 · N351UP · Boeing 76734AF · Passenger/Crew Doors
  > EXCESSIVE AIR LEAK THRU CREW ENTRY DOOR DURING CRUISE. FOUND A LOSE SEAL AT THE LOWER 6 O`CLOCK POSITION. REINSTALLED THE SEAL ON THE TRACK AND LUBRICATED THE DOOR SEALS.
- [SDR IPXA2018090533566](https://openairdocs.org/sdr/IPXA2018090533566.md): Door Seal · out of position · Sep 4, 2018 · N351UP · Boeing 76734AF · Passenger/Crew Doors
  > LOUD HISS COMING FROM MAIN ENTRY DOOR AT CRUISE. FOUND LWR DOOR SEAL OUT OF TRACK. SECURED DOOR SEAL MAIN ENTRY DOOR PER MM 52-09-01-424-019. OK TO CONTINUE.
- [SDR IPXA2018071831795](https://openairdocs.org/sdr/IPXA2018071831795.md): Handle · defective · Jul 17, 2018 · N351UP · Boeing 76734AF · Passenger/Crew Doors
  > ENTRY DOOR INSIDE HANDLE COVER STICKS OUT. WILL NOT REMAIN CLOSED. R&R HINGE ASSY AND DOOR HANDLE IAW AMM 52-12-02-401.
- [SDR IPXA2018070231321](https://openairdocs.org/sdr/IPXA2018070231321.md): Access Door · defective · Jun 30, 2018 · N351UP · Boeing 76734AF · Passenger/Crew Doors
  > CREW ENTRY FWD SIDE DOORWAY. CLEAR SMALL ACCESS DOOR WOULD NOT CLOSE (ARMING LEVER HINGED COVER). DEFERRED PER MEL 52-11-2. R&R ENTRY DOOR ARMING COVER AND HINGE PER AMM 52-12-02. OPS CK GOOD.
- [SDR IPXA2016041202010](https://openairdocs.org/sdr/IPXA2016041202010.md): Floor Panel · damaged · Apr 4, 2016 · N351UP · Boeing 76734AF · Fuselage Floor Panel
  > INSPECTION TYPE: C2, DAMAGE ON M/D FLOOR PANEL 241 ZFF. FABRICATED A NEW REPLACEMENT FLOOR PANEL IAW NR B767-5320-9693-I.
- [SDR IPXA2016031100608](https://openairdocs.org/sdr/IPXA2016031100608.md): Seal · leaking · Mar 10, 2016 · N351UP · Boeing 76734AF · Passenger/Crew Doors
  > CREW ENTRY DOOR SEAL LEAKS AT MID BOTTOM OF DOOR. CREW ENTRY DOOR SEAL REINSTALLED IAW AMM 52-09-01-424-019, REV 117.00. DOOR TESTED, ALL SATISFACTORY.
- [SDR IPXA2016030700417](https://openairdocs.org/sdr/IPXA2016030700417.md): Seal · leaking · Mar 5, 2016 · N351UP · Boeing 76734AF · Passenger/Crew Doors
  > CREW ENTRY DOOR LEAKS AT LOWER LT CORNER LOWER MIDDLE SEAL FOUND ADRIFT, SEAL RE-SEATED INTO DOOR CARRIER AND SEAL NOW SATISFACTORY.
- [SDR IPXA2016030100176](https://openairdocs.org/sdr/IPXA2016030100176.md): Sensor · out of adjust · Feb 29, 2016 · N351UP · Boeing 76734AF · Door Warning System
  > CLIMBING OUT OF 12,000 FT HAD FWD CARGO DOOR EICAS MESSAGE. FOLLOWED QRH PROCEDURE ALSO HAD CARGO DOOR OVERHEAD LIGHT. ADJUSTED LOWER FWD CARGO DOOR CLOSED SENSOR 5215 IAW AMM 52-71-02-2. OPS CHECKED GOOD.
- [SDR IPXA2015111595806](https://openairdocs.org/sdr/IPXA2015111595806.md): Floor Panel · damaged · Nov 15, 2015 · N351UP · Boeing 76734AF · Fuselage Floor Panel
  > HOLE IN FLOOR PANEL POSITION NR 2 CENTER. REPAIRED IAW SRM 53-00-50-2R.
- [SDR IPXA2015111595805](https://openairdocs.org/sdr/IPXA2015111595805.md): Floor Panel · damaged · Nov 15, 2015 · N351UP · Boeing 76734AF · Fuselage Floor Panel
  > 2 HOLES IN FLOOR PANEL, POSITION NR 2 CENTER. REPAIRED IAW SRM 53-00-50-2R.
- [SDR IPXA2015083092889](https://openairdocs.org/sdr/IPXA2015083092889.md): Floor Panel · damaged · Aug 30, 2015 · N351UP · Boeing 76734AF · Fuselage Floor Panel
  > MAIN CARGO DECK FLOOR PANEL DAMAGED 1 X 2 INCH HOLE IN UPPER SKIN. REPAIRED IAW SRM 53-00-50-2R.
- [SDR IPXA2015083092888](https://openairdocs.org/sdr/IPXA2015083092888.md): Floor Panel · damaged · Aug 30, 2015 · N351UP · Boeing 76734AF · Fuselage Floor Panel
  > MAIN DECK FLOOR PANEL DAMAGED ONE INCH DIA HOLE IN UPPER SKIN. REPAIRED IAW SRM 53-00-50-2R.
- [SDR IPXA2015040287647](https://openairdocs.org/sdr/IPXA2015040287647.md): Seal · dislodged · Apr 1, 2015 · N351UP · Boeing 76734AF · Passenger/Crew Doors
  > MAIN DOOR SEAL "WHISTLED" OR LEAKED FROM LIFTOFF TO SHORT FINAL. FOUND CREW ENTRY DOOR SEAL OUT OF SEAL RETAINER. RE-INSTALLED SEAL IAW AMM 52-09-01-4, REV 114.02 03/05/15.

## 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 = 'N351UP' AND registry_match = 'registration'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/aircraft/N351UP/reports

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