# Service difficulty reports: N454UP

A list on [N454UP](https://openairdocs.org/aircraft/N454UP.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 5 · 250 reports

- [SDR IPXA2026042225183](https://openairdocs.org/sdr/IPXA2026042225183.md): Transition Panel · corroded · Apr 22, 2026 · N454UP · Boeing 75724APF · Fuselage Miscellaneous Structure
  > FWD CARGO RH OTBD TRANSITION PANEL CORRODED AT BS 620. REMOVED CORROSION ON FWD CARGO RT OTBD TRANSITION PANEL AT BS 620. TREATED AND PRIMED AREA AND APPLIED TOP COAT IAW SRM 51-20-01-0G-0, AND AMM 51-21-10-377-039.
- [SDR IPXA2026043081790](https://openairdocs.org/sdr/IPXA2026043081790.md): Retainer · corroded · Apr 13, 2026 · N454UP · Boeing 75724APF · Fuselage Main, Structure
  > UPON SEAL REMOVAL- AFTER CARGO DOOR FRAME SEAL RETAINER LOWER HAS CORROSION THE INTERIOR LENGTH. LOCATED AND DRILLED NEW SEAL RETAINER AT AFT CARGO DOOR FRAME LOWER, TREATED AND PRIMED NEW HOLES IAW SRM 51-40-05-0G-0 AND SRM 51-20-01-0G-0. INSTALLED NEW SEAL
- [SDR IPXA2026043042646](https://openairdocs.org/sdr/IPXA2026043042646.md): Floor Support · corroded · Apr 10, 2026 · N454UP · Boeing 75724APF · Fuselage Miscellaneous Structure
  > AFT CARGO COMPARTMENT FLOOR STRINGER HAS CORROSION APPROX BTW BS 1445 AND BS 1497.5, RBL 10.45. REMOVED 1EA DAMAGED FLOOR STRINGER IN AFT CARGO COMPARTMENT BTW BS 1445 AND BS 1497.5, RBL 10.45 IAW SRM 51-40-02-0G-0. INSTALLED NEW REPLACEMENT STRINGER AT AFT CA
- [SDR IPXA2026043042676](https://openairdocs.org/sdr/IPXA2026043042676.md): Floor Support · corroded · Apr 10, 2026 · N454UP · Boeing 75724APF · Fuselage Miscellaneous Structure
  > AFT CARGO COMPARTMENT FLOOR STRINGER HAS CORROSION APPROX BTW BS 1445 AND BS 1497.5, LBL 7.55. REMOVED 1EA DAMAGED FLOOR STRINGER IN AFT CARGO COMPARTMENT BTW BS 1445 AND BS 1497.5, LBL 7.55 REF SRM 51-40-02-0G-0. INSTALLED NEW REPLACEMANT STRINGER AT BTW BS
- [SDR IPXA2026042142676](https://openairdocs.org/sdr/IPXA2026042142676.md): Floor Support · corroded · Apr 10, 2026 · N454UP · Boeing 75724APF · Fuselage Miscellaneous Structure
  > AFT CARGO COMPARTMENT FLOOR STRINGER HAS CORROSION APPROX BTW BS 1445 AND BS 1497.5, LBL 7.55,
- [SDR IPXA2026041742646](https://openairdocs.org/sdr/IPXA2026041742646.md): Floor Support · corroded · Apr 10, 2026 · N454UP · Boeing 75724APF · Fuselage Miscellaneous Structure
  > AFT CARGO COMPARTMENT FLOOR SUPPORT HAS CORROSION APPROX BTW BS 1445 AND BS 1497.5, RBL 10.45
- [SDR IPXA2026050107936](https://openairdocs.org/sdr/IPXA2026050107936.md): Attach Angle · corroded · Apr 9, 2026 · N454UP · Boeing 75724APF · Elevator Structure
  > LEFT ELEVATOR OB BONDING JUMPER ATTACHMENT HAS CORROSION. REMOVED INTERCOSTAL TO GAIN ACCESS AT LH STABILIZER HORIZONTAL TIP AREA REF SRM 51-40-02-0G-0. INSTALLED INTERCOSTAL, NEW BONDING JUMPER AND FABRICATED ANGLE AT LH OB HORIZONTAL STABILIZER TIP AREA, IA
- [SDR IPXA2026050588833](https://openairdocs.org/sdr/IPXA2026050588833.md): Support Tray · corroded · Apr 8, 2026 · N454UP · Boeing 75724APF · Fuselage Main, Structure
  > APU FIRE BOTTLE SUPPORT TRAY HAS UPPER SURFACE CORROSION AND FWD INBD CORNER CRACKED. INSTALLED NEW REPLACEMENT APU FIRE BOTTLE SUPPORT TRAY IN AFT INTERNAL FUSELAGE RT SIDE IAW SRM 51-40-02-0G-0.
- [SDR IPXA2026050190796](https://openairdocs.org/sdr/IPXA2026050190796.md): Attach Angle · corroded · Apr 8, 2026 · N454UP · Boeing 75724APF · Elevator Structure
  > RIGHT ELEVATOR OB BONDING JUMPER BRACKET HAS CORROSION. REMOVED 1EA DAMAGE BRACKET AND DAMAGE BONDING WIRE AT R/H ELEVATOR T/E IAW SRM 51-40-02-0G-0. INSTALLED NEW ANGLE (JUMPER BRACKET), 1EA NEW JUMPER (BONDING WIRE) P/N BACJ40E20-20 BATCH 0004478352, AND WE
- [SDR IPXA2026050102987](https://openairdocs.org/sdr/IPXA2026050102987.md): Floor Support · corroded · Apr 8, 2026 · N454UP · Boeing 75724APF · Fuselage Miscellaneous Structure
  > AFT CARGO COMPARTMENT FLOOR STRINGER UPPER FLANGE HAS EVIDENCE OF CORROSION APPROX BTW BS 1460 AND BS 1480, LBL 7.55 AND RBL 7.55, INSTALLED NEW REPLACEMANT STRINGER AT BTW BS 1445 AND BS 1497.5, LBL 7.55 IAW SRM 51-40-02-0G-0.
- [SDR IPXA2026050103053](https://openairdocs.org/sdr/IPXA2026050103053.md): Floor Support · corroded · Apr 8, 2026 · N454UP · Boeing 75724APF · Fuselage Miscellaneous Structure
  > AFT CARGO COMPARTMENT FLOOR STRINGER UPPER FLANGE HAS EVIDENCE OF CORROSION APPROX BTW BS 1460 AND BS 1480, LBL 10.45 AND RBL 10.45, REMOVED CORROSION AT AFT CARGO COMPARTMENT FLOOR STRINGER UPPER FLANGE AT ACTUAL LOCATION STA 1470 LBL 10.45 IAW SRM 53-00-53
- [SDR IPXA2026050103176](https://openairdocs.org/sdr/IPXA2026050103176.md): Floor Support · corroded · Apr 8, 2026 · N454UP · Boeing 75724APF · Fuselage Miscellaneous Structure
  > AFT CARGO COMPARTMENT FLOOR STRINGER UPPER FLANGE HAS CORROSION APPROX BTW BS 1460 AND BS 1480, RBL 16.10, REMOVED SPLICE STRAP AT AFT CARGO COMPARTMENT FLOOR STA 1470 FOR ACCESS IAW SRM 51-40-02-0G-0. REMOVED AFT CARGO COMPARTMENT FLOOR STRINGER AT RBL 16.10
- [SDR IPXA2026042200417](https://openairdocs.org/sdr/IPXA2026042200417.md): Frame Angle · cracked · Apr 8, 2026 · N454UP · Boeing 75724APF · Fuselage Main, Frame
  > BULK CGO COMP STA 1640 LBL 16" FLOOR AREA ANGLE FRAME HAS CRACKED. REMOVED FLOOR ANGLE FRAME AT AFT CARGO COMP AT STA 1640 LBL 16" IAW B757 SRM 51-40-02-0G-0. INSTALLED NEW ANGLE AT CARGO COMP. STA. 1640 LOWER IAW SRM 51-40-02-0G-0 AND RESTORE ACCESS AS RE
- [SDR IPXA2026041203053](https://openairdocs.org/sdr/IPXA2026041203053.md): Floor Support · corroded · Apr 8, 2026 · N454UP · Boeing 75724APF · Fuselage Miscellaneous Structure
  > AFT CARGO COMPARTMENT FLOOR SUPPORT UPPER FLANGE HAS EVIDENCE OF CORROSION APPROX BTW BS 1460 AND BS 1480, LBL 10.45 AND RBL 10.45, ID STICKER NUM, (085-040) ATA 53-10 VERIFIED TOOLING. VERIFIED STEP 7.
- [SDR IPXA2026041202987](https://openairdocs.org/sdr/IPXA2026041202987.md): Floor Support · corroded · Apr 8, 2026 · N454UP · Boeing 75724APF · Fuselage Miscellaneous Structure
  > AFT CARGO COMPARTMENT FLOOR SUPPORT UPPER FLANGE HAS EVIDENCE OF CORROSION APPROX BTW BS 1460 AND BS 1480, LBL 7.55 AND RBL 7.55, ID STICKER NUM, (085-039) ATA 53-10 VERIFIED TOOLING. VERIFIED STEP 4 AND 5.
- [SDR IPXA2026041803176](https://openairdocs.org/sdr/IPXA2026041803176.md): Floor Support · corroded · Apr 8, 2026 · N454UP · Boeing 75724APF · Fuselage Miscellaneous Structure
  > AFT CARGO COMPARTMENT FLOOR STRINGER UPPER FLANGE HAS CORROSION APPROX BTW BS 1460 AND BS 1480, RBL 16.10, ID STICKER NUM, (085-041) ATA 53-10 VERIFIED STEP 6. OK TO INSTALL.
- [SDR IPXA2026041984059](https://openairdocs.org/sdr/IPXA2026041984059.md): Angle · corroded · Apr 7, 2026 · N454UP · Boeing 75724APF · Aerodynamic Fairings
  > RIGHT WTB PANEL LANDING, 2ND FROM FWD, AT UPPER WING ROOT HAS SURFACE CORROSION. 83-021. ATA 53-030 INSTALLED (3EA) NUTPLATES ON FWD SUPPORT ANGLE AND (3EA) NUTPLATES ON AFT SUPPORT ANGLE AT RT WTB UPPER WING ROOT STA-925, WL-208.1. I.A.W. SRM 51-40-02-0G-0 PA
- [SDR IPXA2026043078576](https://openairdocs.org/sdr/IPXA2026043078576.md): Angle · cracked · Apr 7, 2026 · N454UP · Boeing 75724APF · Fuselage Miscellaneous Structure
  > AFT CARGO R/H AFT. WALL ANGLE SUPPORT ZONE 164 FOUND CRACK. ES-009. REMOVED CRACKED AFT CARGO RT AFT. WALL ANGLE SUPPORT AT STA 1640 RBL 24.8 IAW SRM 51-40-02-0G-0. INSTALLED FABRICATED SUPPORT ANGLE P/N 453N1809-36SAAU AND REINSTALLED VERTICAL BULKHEAD PANEL
- [SDR IPXA2026042382776](https://openairdocs.org/sdr/IPXA2026042382776.md): Tie Down · corroded · Apr 7, 2026 · N454UP · Boeing 75724APF · Fuselage Miscellaneous Structure
  > FWD CARGO RH OTBD TRANSITION HAS CORROSION BS 770 - 800. REMOVED CORROSION AT R/H STA. 780 ON TIE DOWN FITTING RBL 20R IAW 51-10-02-0G-0. INSTALLED NEW TIE DOWN FITTING AT FWD CARGO BS 780 RBL 20R IAW SRM 51-40-02-0G-0.
- [SDR IPXA2026042382902](https://openairdocs.org/sdr/IPXA2026042382902.md): Sidewall Support · corroded · Apr 7, 2026 · N454UP · Boeing 75724APF · Fuselage Miscellaneous Structure
  > FWD CARGO LH LOWER SIDEWALL SUPPORT FRAME CORRODED STA 740 STR. REMOVED CORROSION ON L/H LOWER SIDEWALL SUPPORT AT BS 740 BTW STR 22R-26R IAW B757-200PF SRM 51-10-02-0G-0. CORROSION REMOVAL IS 100% MAT'L LOSS, PART WILL BE REMOVED AND REPLACED. INSTALLED SID
- [SDR IPXA2026042783844](https://openairdocs.org/sdr/IPXA2026042783844.md): Support Channel · corroded · Apr 7, 2026 · N454UP · Boeing 75724APF · Aerodynamic Fairings
  > AFT WTB LOWER FAIRING PANEL LANDING CHORD AT APPROX. BS 1217 HAS EXFOLIATED CORROSION. 83-015. REMOVED 1EA EXFOLIATED CHORD (CHANNEL) AT AFT WTB LOWER FAIRING AREA BTW BS 1180 AND 1220 RBL 7 IAW SRM 51-40-02-0G-0. INSTALLED 1 E/A NEW PART CHANNEL SUPPORT AND R
- [SDR IPXA2026043083949](https://openairdocs.org/sdr/IPXA2026043083949.md): Support Angle · cracked · Apr 7, 2026 · N454UP · Boeing 75724APF · Aerodynamic Fairings
  > STR- RH AFT WTB LOWER FAIRING PNL LANDING SUPPORT BRACKET HAS EVIDENCE OF A CRACK. 83-018. REMOVED SUPPORT BRACKET AT RH AFT WTB LOWER FAIRING PNL IAW B757-200PF SRM 51-40-02-0G-0 REV 124- 20 SEP 2025. INSTALLED SUPPORT BRAKET AND ATTACHED BEAM AT STR - RH AFT
- [SDR IPXA2026042884007](https://openairdocs.org/sdr/IPXA2026042884007.md): Angle · corroded · Apr 7, 2026 · N454UP · Boeing 75724APF · Aerodynamic Fairings
  > RIGHT WTB FWD PANEL LANDING AT UPPER WING ROOT HAS SURFACE CORROSION. 83-020. REMOVED (1EA) FWD SUPPORT ANGLE AND (1EA) AFT SUPPORT ANGLE FROM RH WTB UPPER WING ROOT STA-900, WL-208.1 I.A.W. B757-200PF SRM 51-40-02-0G-0 PARAG.7. INSTALLED FWD AND AFT SUPPORT A
- [SDR IPXA2026042982498](https://openairdocs.org/sdr/IPXA2026042982498.md): Strap · corroded · Apr 7, 2026 · N454UP · Boeing 75724APF · Fuselage Miscellaneous Structure
  > AFT CARGO RT OTBD CEILING PROFILE CORRODED BS 1420 - 1440, REMOVED CORROSION ON CEILING PROFILE STABILIZATION STRAP AT BS1420, RBL 24.75 ON BOTH UPPER AND LOWER SURFACES IAW SRM 53-00-51-1A-1. INSTALLED NEW STABILIZATION STRAP RBL 24.75 BETWEEN BS 1440-1360
- [SDR IPXA2026042384007](https://openairdocs.org/sdr/IPXA2026042384007.md): Angle · corroded · Apr 7, 2026 · N454UP · Boeing 75724APF · Wing Miscellaneous Structure
  > RH WTB FWD PANEL LANDING AT UPPER WING ROOT HAS SURFACE CORROSION.
- [SDR IPXA2026042383844](https://openairdocs.org/sdr/IPXA2026042383844.md): Support Channel · corroded · Apr 7, 2026 · N454UP · Boeing 75724APF · Aerodynamic Fairings
  > AFT WTB LOWER FAIRING PANEL LANDING CHORD AT APPROX. STA. 1217 HAS EXFOLIATED CORROSION.
- [SDR IPXA2026042383814](https://openairdocs.org/sdr/IPXA2026042383814.md): Tee Angle · corroded · Apr 7, 2026 · N454UP · Boeing 75724APF · Aerodynamic Fairings
  > AFT WTB LOWER FAIRING PANEL LANDING CHORD AT STA. 1220 HAS EXFOLIATED CORROSION. REMOVED EXFOLIATED CHORD FROM AFT WTB LOWER FAIRING AREA AT STA 1220 BTW RBL 30 AND LBL 30 REF B757 SRM 51-40-02-0G-0. INSTALLED 1 E/A NEW PART CHORD TEE P/N 149N7701-36 B/N 00
- [SDR IPXA2026042382439](https://openairdocs.org/sdr/IPXA2026042382439.md): Transition Panel · corroded · Apr 7, 2026 · N454UP · Boeing 75724APF · Fuselage Miscellaneous Structure
  > AFT CARGO RH OTBD TRANSITION PANEL CORRODED STA 1440-1500. REMOVED CORROSION AT RT BS 1440 ON TIE DOWN FITTING RBL 20R IAW 51-10-02-0G-0. INSTALLED NEW RT OTBD TRANSITION PANEL IN AFT CARGO COMPARTMENT BS 1440-1528 IAW SRM 51-40-02-0G-0.
- [SDR IPXA2026042176560](https://openairdocs.org/sdr/IPXA2026042176560.md): Strap · corroded · Apr 7, 2026 · N454UP · Boeing 75724APF · APU Cowling/Containment
  > WHILE EVALUATING CORROSION AT APU INLET SURROUND STRUCTURE FOUND CORROSION AT APU INLET AFT STRAP AT STA 1825 BETWEEN STR 3R-6R. CORROSION FOUND ON MIDDLE STRAP OUTER SURFACE ONLY. REMOVED AND BLENDED SMOOTH THE CORROSION IAW SRM 53-80-15-1A-1 PARA 3. REINSTAL
- [SDR IPXA2026042280199](https://openairdocs.org/sdr/IPXA2026042280199.md): Skin · corroded · Apr 7, 2026 · N454UP · Boeing 75724APF · Cargo/Baggage Doors
  > AFT CARGO DOOR INNER SKIN LOWER WEB CORRODED IN SEVERAL PLACES. REMOVED 36 E/A FASTENERS AND CORROSION ON AFT CARGO DOOR INNER SKIN LOWER WEB BETWEEN BS 1380-1440 AT 11" FROM LOWER EDGE IAW SRM 51-40-02-0G AND 51-10-02-0G. INSTALLED 36 E/A FASTENERS ON AFT C
- [SDR IPXA2026041882776](https://openairdocs.org/sdr/IPXA2026041882776.md): Transition Panel · corroded · Apr 7, 2026 · N454UP · Boeing 75724APF · Fuselage Miscellaneous Structure
  > FWD CARGO RT OTBD TRANSITION HAS CORROSION STA 770-800.
- [SDR IPXA2026041782902](https://openairdocs.org/sdr/IPXA2026041782902.md): Sidewall Support · corroded · Apr 7, 2026 · N454UP · Boeing 75724APF · Fuselage Miscellaneous Structure
  > FWD CARGO LH LOWER SIDEWALL SUPPORT FRAME CORRODED STA 740.
- [SDR IPXA2026042865233](https://openairdocs.org/sdr/IPXA2026042865233.md): Floorbeam · corroded · Apr 6, 2026 · N454UP · Boeing 75724APF · Fuselage Main, Floor Beam
  > MAJOR REPAIR, FWD CARGO CEILING MAIN CABIN FLOORBEAM UPPER FLANGE LOWER SURFACE EXFOLIATED RT OTBD SIDE BS 879, ACCOMPLISHED REPAIR IAW EO-97324-REQ1 AND EA 757-5310-01-B0710, REV IR, PRIOR TO FURTHER FLIGHT.
- [SDR IPXA2026042965161](https://openairdocs.org/sdr/IPXA2026042965161.md): Crease Beam · damaged · Apr 6, 2026 · N454UP · Boeing 75724APF · Fuselage Main, Structure
  > FWD CARGO COMP RT LOWER CUSP FITTING BS 760 HAS TOOL MARKS. REMOVED FWD CARGO COMP RT LOWER AFT CUSP FITTING AT BS 760 IAW SRM 51-40-02-0G-0. LOCATED, DRILLED AND INSTALLED CUPS TIE (FITTING) AT FWD CARGO COMP R/H LOWER AFT BS 760 IAW SRM 51-40-02.
- [SDR IPXA2026042265976](https://openairdocs.org/sdr/IPXA2026042265976.md): Angle · corroded · Apr 6, 2026 · N454UP · Boeing 75724APF · Fuselage Miscellaneous Structure
  > AFT CARGO RT AFT BULKHEAD PANEL STA. 1640 SUPPORT FOUND CORROSION. AFTER FURTHER EVALUATION REPORTED CORROSION FOUND ON AFT CARGO R/H AFT UPPER BULKHEAD PANEL LANDING AT STA 1640 FROM LBL45.50 TO RBL 60 IS 50% MATERIAL LOSS FOUND TO BE OUT OF 10% REWORK LIMIT
- [SDR IPXA2026042265216](https://openairdocs.org/sdr/IPXA2026042265216.md): Transition Panel · corroded · Apr 6, 2026 · N454UP · Boeing 75724APF · Fuselage Miscellaneous Structure
  > FWD CARGO RH OTBD TRANSITION PANEL CORRED AT STA 620 STR ATA 53-00 GM028. REMOVED CORROSION ON FWD CARGO RH OTBD TRANSITION PANEL AT STA 620, ORIGINIGINAL THICHINESS 0.063" ALLOWABLE MAT. REMAINING 10% =.006" LOSS MATERIAL.002" AREA FOUND WITHIN LIMITS IA
- [SDR IPXA2026042065233](https://openairdocs.org/sdr/IPXA2026042065233.md): Floorbeam · corroded · Apr 6, 2026 · N454UP · Boeing 75724APF · Fuselage Main, Floor Beam
  > FWD CARGO CEILING MAIN CABIN FLOOR BEAM UPPER FLANGE LOWER SURFACE EXFOLIATED RH OTBD SIDE STA 879. FABRICATED REPAIR PARTS AS SHOWN IN FIG. 2, -1 ANGLE (2 EACH) -2 FILLER (1 EA) AND -4 FILLER (2 EA) IAW 757-5310-01-B0710 REV P2 STEP 9.
- [SDR IPXA2026042153361](https://openairdocs.org/sdr/IPXA2026042153361.md): Strap · corroded · Apr 5, 2026 · N454UP · Boeing 75724APF · Fuselage Miscellaneous Structure
  > APU INLET SURROUND STRUCTURE FWD STRAP O/B CORNER HAS CORROSION. REMOVED 1EA FWD STRAP, 1EA UPPER SUPPORT ANGLE, 1EA UPPER CORNER ANGLE, 1EA LOWER SUPPORT ANGLE ON APU INLET SURROUND STRUCTURE BETWEEN STA 1787.45- 1825 AND BETWEEN STR 3R-6R REF B757-200PF SR
- [SDR IPXA2026050134931](https://openairdocs.org/sdr/IPXA2026050134931.md): Retainer · corroded · Apr 4, 2026 · N454UP · Boeing 75724APF · Fuselage Miscellaneous Structure
  > APU COMPARTMENT FWD BULKHEAD STA 1885 HORZ STRIFFENER JUST BELOW LIGHT SWITCH ASSY HAS AREAS OF LITE CORROSION, BENT AND DOOR HOOK DAMAGED WITH SEVERAL SHEARED FASTENERS. REMOVED 01EA DAMAGED HOOK (RETAINER) FROM APU COMPARTMENT FWD BULKHEAD STA 1885.20 IAW B7
- [SDR IPXA2026043035211](https://openairdocs.org/sdr/IPXA2026043035211.md): Bracket · corroded · Apr 4, 2026 · N454UP · Boeing 75724APF · Fuselage Miscellaneous Structure
  > APU COMPARTMENT FWD BULKHEAD STA 1885 CEILING WIRE HARNESS CLAMP SUPPORT BRACKETS 6 EACH UPPER AND LOWER SIDES HAVE LITE CORROSION AND MISSING PROTECTIVE FINISH. REMOVED CORROSION ON 6EA BRACKETS AT APU COMPARTMENT FWD BULKHEAD STA 1885 CEILING WIRE HARNESS MA
- [SDR IPXA2026041134931](https://openairdocs.org/sdr/IPXA2026041134931.md): Stiffener · inoperative · Apr 4, 2026 · N454UP · Boeing 75724APF · APU Cowling/Containment
  > APU COMPARTMENT FWD BULKHEAD STA 1885 HORZ STRIFFENER JUST BELOW LIGHT SWITCH ASSY HAS AREAS OF LITE CORROSION, BENT AND DOOR HOOK DAMAGED WITH SEVERAL SHEARED FASTENERS. RLOO7 PROD AUDIT C/W
- [SDR IPXA2026042143555](https://openairdocs.org/sdr/IPXA2026042143555.md): Clamp · cracked · Apr 4, 2026 · N454UP · Boeing 75724APF · Crew Oxygen System
  > FWD CARGO O2 BOTTLE RETAINER IS CRACKED AND TENSION STRAP IS SECURED CORRECTLY. REMOVED FWD CARGO CRACKED O2 BOTTLE RETAINER FRONT HALF ASSY IAW BOEING 757-200PF SRM 51-40-02-0G-0. INSTALLED NEW FWD CARGO O2 BOTTLE RETAINER FRONT AND REAR HALF ASSY, AND TORQU
- [SDR IPXA2026042142345](https://openairdocs.org/sdr/IPXA2026042142345.md): Angle · corroded · Apr 4, 2026 · N454UP · Boeing 75724APF · Fuselage Miscellaneous Structure
  > AFT CARGO. CORROSION ON 2 EA NUT PLATES AND STIFFNER BTWN STA 1715 AND AFT PRESS BULHEAD. BTWN 12 RBL AND 24 RBL. 61. REMOVED 2EA STIFFENER AT AFT CARGO BTW STA 1701 AND PRESS BULKHEAD, BTW 24RBL AND 12RBL IAW B757-200PF SRM 51-40-02-OG-0,PAR-4 REV 124 -20
- [SDR IPXA2026042142289](https://openairdocs.org/sdr/IPXA2026042142289.md): Angle · corroded · Apr 4, 2026 · N454UP · Boeing 75724APF · Fuselage Miscellaneous Structure
  > AFT CARGO. CORROSION ON NUT PLATE AND STIFFNER. BTWN STA 1715 AND AFT PRESS. BULKHEAD BTWN. 33 RBL AND 39 RBL. 61. REMOVED 1EA STIFFENER AT AFT CARGO BTWN STA 1701 AND AFT PRESS. BULKHEAD BTW 62RBL TO 45RBL IAW SRM 51-40-02-OG-0, PAR 4 REV 124-20 SEP 2025. I
- [SDR IPXA2026042142204](https://openairdocs.org/sdr/IPXA2026042142204.md): Angle · corroded · Apr 4, 2026 · N454UP · Boeing 75724APF · Fuselage Miscellaneous Structure
  > AFT CARGO. CORROSION ON NUT PLATE AND STIFFNER BTWN BS 1715 AND AFT PRESS. BULKHEAD 45LBL - 24.74 LBL 61. REMOVED DAMAGED NUTPLATE ASSY FROM STIFFNER PER B757-200PF SRM 51-40-02. OK TO FABRICATE REPLACEMENT NUTPLATE ASSY FROM SHT-7075T6-.063" BATCH 00029
- [SDR IPXA2026041735211](https://openairdocs.org/sdr/IPXA2026041735211.md): Support Bracket · corroded · Apr 4, 2026 · N454UP · Boeing 75724APF · APU Cowling/Containment
  > APU COMPARTMENT FWD BULKHEAD STA 1885 CEILING WIRE HARNESS CLAMP SUPPORT BRACKETS 6 EACH UPPER AND LOWER SIDES HAVE LIGHT CORROSION AND MISSING PROTECTIVE FINISH. RL014 VERIFIED STEP #18 C/W INSTALLATION.
- [SDR IPXA2026042143284](https://openairdocs.org/sdr/IPXA2026042143284.md): Doubler · corroded · Apr 4, 2026 · N454UP · Boeing 75724APF · Fuselage Main, Plate/Skin
  > RT FWD LAV DUMP VALVE ADAPTER PLATE CORRODED. REMOVED PLATE FOR ACCESS FROM R/H FWD LAV DUMP VALVE ADAPTER REF. B757-200PF SRM 51-40-02-OG-0, UPON FURTHER EVALUATION FOUND 100% OF MAT. LOSS. USED CALIPER ID#23-2023 DATE DUE 10-MAY-2026. INSTALLED REPLACEMENT
- [SDR IPXA2025112581036](https://openairdocs.org/sdr/IPXA2025112581036.md): Fuel Sys · leaking · Nov 15, 2025 · N454UP · Boeing 75724APF · Fuel Storage
  > FUEL CONFIG MSG. C/W QRH PROCEDURE. FUEL LEAK NOT SUSPECTED. L QTY 6.6 R QTY 8.4 TOT 15.0 FUEL USED L13.4 FUEL USED R 14.0 TOTALIZER 15.0 CALCULATED 14.8 FF L3.4 FF R3.6 INBALANCE INCREASE 800 LB HR PERFORMED OPS AND LEAK CHECK OF CROSSFEED VALVES, OPERATION
- [SDR IPXA2025111971036](https://openairdocs.org/sdr/IPXA2025111971036.md): Valve · faulted · Nov 15, 2025 · N454UP · Boeing 75724APF · Fuel Transfer Valve
  > FUEL CONFIG MSG. C/W QRH PROCEDURE. FUEL LEAK NOT SUSPECTED. L QTY 6.6 R QTY 8.4 TOT 15.0 FUEL USED L13.4 FUEL USED R 14.0 TOTALIZER 15.0 CALCULATED 14.8 FF L3.4 FF R3.6 INBALANCE INCREASE 800 LB HR PER MX CONTROL TELEMETRY SHOWED AN IMBALANCE OF BELOW 1000LBS
- [SDR IPXA2025060974825](https://openairdocs.org/sdr/IPXA2025060974825.md): Fuel Sys · out of balance · Jun 6, 2025 · N454UP · Boeing 75724APF · Aircraft Fuel Distribution System
  > **SUPPLEMENTAL SDR** FUEL STARTED L13.0 USED 7.2 = 5.8. LEFT GAUGE READS 5.4. FUEL STARTED R13.2 USED 7.7 = 5.5. RT GAUGE READS 6.2. FUEL IMBALANCE DID NOT AGREE WITH FUEL FLOWS IN CRUISE. PERFORMED OPS CHECK OF LH DEFUEL VALVE PER AMM 28-26-01. OPS CHECK GOOD

Next page: https://openairdocs.org/aircraft/N454UP/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 = 'N454UP' AND registry_match = 'registration'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/aircraft/N454UP/reports

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