# Service difficulty reports: N7451U, cancelled Jun 28, 2006

A list on [N7451U, cancelled Jun 28, 2006](https://openairdocs.org/deregistered/N7451U-2006-06-28.md).

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

- [SDR 2001UALA00184](https://openairdocs.org/sdr/2001UALA00184.md): Controller · failed · Mar 4, 2001 · N7451U · Boeing 727222 · Cabin Pressure Controller
  > AUTO PRESSURIZATION FAILED DURING CLIMB. *S/D* THE PRESSURE CONTROLLER FAILED. REPLACED THE ELECTRONIC PRESSURE CONTROLLER.
- [SDR 2000UALA00594](https://openairdocs.org/sdr/2000UALA00594.md): Light · intermittent · Oct 15, 2000 · N7451U · Boeing 727222 · Emergency Lighting
  > OPERATIONS REPORTED THAT WHEN REMOVING POWER FROM THE AIRCRAFT THE FORWARD EMERGENCY LIGHT REMAIND ON AND CYCLING OF EMERGENCY LIGHTS DID NOT HELP. *S/D* RESET LIGHT AT LIGHT ASSEMBLY, OPS CHECK NORMAL.
- [SDR 2000UALA00557](https://openairdocs.org/sdr/2000UALA00557.md): Actuator · leaking · Sep 20, 2000 · N7451U · Boeing 727222 · Leading Edge Slat Actuator
  > ON TAKEOFF THE OUTBOARD FLAPS WOULD NOT RETRACT BEYOND POSITION 2. RETURNED TO ORD. ON APPROACH TO GATE SYSTEM A HYDRAULIC FLUID QUANTITY WENT TO ZERO. *S/D* REPLACED NR 5 RIGHT WING MIDDLE KRUEGER FLAP ACTUATOR PER MAINTENANCE MANUAL. SERVICED HYDRAULIC
- [SDR 2000UALA00120](https://openairdocs.org/sdr/2000UALA00120.md): Battery Pack · inoperative · Mar 9, 2000 · N7451U · Boeing 727222 · Emergency Lighting
  > AN EIGHT FOOT SECTION OF EEL LIGHTS FROM ROW 24 TO 27 IS INOPERATIVE. *S/D* REPLACED BATTERY PACK AND POWER STRIP.
- [SDR 99UAL900660](https://openairdocs.org/sdr/99UAL900660.md): Fire Loop · out of position · Dec 20, 1999 · N7451U · Boeing 727222 · Fire Detection
  > ENGINE 1 STRUT OVERHEAT LIGHT CAME ON. COMPLETED IN FLIGHT ENGINE SHUTDOWN, LIGHT REMAINED ON. *S/D* THE STRUT OVERHEAT LIGHT ILLUMINATION IN-FLIGHT WAS AN INDICATION PROBLEM. ALL DUCTS WERE FOUND INTACT. THE OVERHEAT LOOP WAS FOUND RESTING ON THE 13TH ST
- [SDR 99UAL900504](https://openairdocs.org/sdr/99UAL900504.md): Access Panel · loose · Oct 1, 1999 · N7451U · Boeing 727222 · Wing, Plate/Skin
  > PASSENGER REPORTED FUEL DRAINING FROM LEFT WING TIP. CREW REPORTED QUANTITY DECREASING. RETURNED TO ABQ. *S/D* TORQUED NR 15 LEFT HAND WING ACCESS PANEL.
- [SDR 99UAL900424](https://openairdocs.org/sdr/99UAL900424.md): Bulkhead Chord · corroded · Aug 2, 1999 · N7451U · Boeing 727222 · Fuselage Main, Bulkhead
  > THE FORWARD EDGE OF THE CHORD AT STATION 1183 BULKHEAD LBL 24, WL 209 WAS CORRODED BEYOND THE SRM ALLOWABLE LIMIT. DAMAGE WAS TRIMMED OUT AND AREA WAS REPAIRED WITH STRAP AND FILLER PER TIMCO INSTRUCTIONS. THIS REPAIR WAS APPROVED BY TIMCO'S DER WITH AN 8110
- [SDR 99UAL900408](https://openairdocs.org/sdr/99UAL900408.md): Rib · cracked · Jul 30, 1999 · N7451U · Boeing 727222 · Wing, Rib/Bulkhead
  > DURING INSPECTION AND INSTALLATION OF THE PREVENTIVE MOD PER SERVICE BULLETIN727-57-0012 AS MANDATED BY AD94-07-08 AND AD90-06-09 ON THE LBL 70.5 RIB CHORD AT STATION 760.5 TWO CRACKED FASTENER HOLES WERE FOUND. FATIGUE. C0RRECTION, BOTH HOLES WERE OVERSIZE
- [SDR 99UAL900406](https://openairdocs.org/sdr/99UAL900406.md): Spar · chafed · Jul 30, 1999 · N7451U · Boeing 727222 · Vertical Stabilizer, Spar/Rib
  > THE VERTICAL STABILIZER MID SPAR CHORD AT FIN STATION 215 ON THE LT SIDE WAS FOUND CHAFED TO BELOW THE MINIMUM ALLOWABLE THICKNESS OF THE CHORD. THE DAMAGED AREA WAS BLENDED OUT AND A REINFORCING REPAIR ANGLE WAS INSTALLED PER TIMCO REPAIR INSTRUCTIONS. THI
- [SDR 99UAL900387](https://openairdocs.org/sdr/99UAL900387.md): Floorbeam · corroded · Jul 20, 1999 · N7451U · Boeing 727222 · Fuselage Main, Floor Beam
  > CORROSION DAMAGE WAS FOUND ON THE STATION 1050 FLOORBEAM UPPER FLANGE AT RRL 30. THE RESULTING BLENDOUT WENT BEYOND ALLOWABLE LIMITS FOR MATERIAL REMOVAL. THE CORROSION WAS REMOVED BY BLENDING AND A REPAIR STRAP INSTALLED PER TIMCO REPAIR INSTRUCTIONS. THIS
- [SDR 99UAL900397](https://openairdocs.org/sdr/99UAL900397.md): Floorbeam · corroded · Jul 19, 1999 · N7451U · Boeing 727222 · Fuselage Main, Floor Beam
  > CORROSION DAMAGE WAS FOUND ON THE STATION 1130 FLOORBEAM UPPER FLANGE FROM RBL 15 TO 24. THE RESULTING BLENDOUT WENT BEYOND THE ALLOWABLE LIMITS FOR MATERIAL REMOVAL. THE CORROSION DAMAGE WAS REMOVED BY BLENDING AND A REPAIR STRAP INSTALLED PERTIMCO REPAIR I
- [SDR 99UAL900018](https://openairdocs.org/sdr/99UAL900018.md): Duct · broken · Jan 7, 1999 · N7451U · Boeing 727222 · Airfoil Anti/De-ice System
  > FOUND NR 6 LEADING EDGE SLAT HEAT TUBE BROKEN AT SWIVEL POINT IN RIGHT WING. *S/D* FOUND BROKEN ANTI ICE DUCT. REPLACED DUCT ASSY AND SHAFT ASSY OF NR 6 SLAT TELESCOPING DUCT.
- [SDR 98UAL900289](https://openairdocs.org/sdr/98UAL900289.md): Light · inoperative · Jun 23, 1998 · N7451U · Boeing 727222 · Emergency Lighting
  > FORWARD ENTRY DOOR INTERIOR EEL LIGHT INOPERATIVE. *S/D* REPLACED LIGHT ASSY.
- [SDR 98UAL900094](https://openairdocs.org/sdr/98UAL900094.md): Duct · failed · Mar 1, 1998 · N7451U · Boeing 727222 · Pneumatic Distribution System
  > NR 1 ENGINE STRUT OVERHEAT LIGHT GOES OUT WHEN BLEED SHUT OFF. *S/D* THE SHORT FLEX DUCT WAS LEAKING. REPLACED FLEX DUCT. ALSO, REPLACED THE ANTI-ICE VALVE PER PRECAUTIONARY.
- [SDR 97UAL900604](https://openairdocs.org/sdr/97UAL900604.md): Connector · corroded · Aug 2, 1997 · N7451U · Boeing 727222 · Trailing Flap Position Indicating System
  > OUTBOARD FLAPS WILL NOT MOVE BEYOND 2 DEGREES. INBOARD FLAPS ARE DOWN AT SELECTED 5 DEGREES AND LEADING EDGE DEVICES ARE OPERATING. OUTBOARD FLAPS WILL NOT GO UP OR DOWN EITHER HYDRAULICALLY OR ELECTRICALLY. *S/D* FOUND CORROSION ON RIGHT HAND OUTBOARD TRA
- [SDR 97UAL900451](https://openairdocs.org/sdr/97UAL900451.md): Switch · failed · Jun 11, 1997 · N7451U · Boeing 727222 · Hydraulic Pressure Sensor
  > AIRCRAFT RETURNED TO GATE WITH B-SYSTEM LOW PRESSURE WARNING LIGHT. *S/D* REPLACED HYDRAULIC PRESSURE SWITCH ASSEMBLY DUE TO FAILURE.
- [SDR 97UAL900045](https://openairdocs.org/sdr/97UAL900045.md): Seam · leaking · Jan 7, 1997 · N7451U · Boeing 727222 · Escape Slide
  > SLIDE REMOVED FROM DOOR 2R FOR AIR CRUISERS SERVICE INFORMATION LETTER 25-98 DEVELOPED AN INFLATION TUBE SEAM LEAK DURING SHOP TEST. SLIDE SCRAPPED.
- [SDR 96UAL900982](https://openairdocs.org/sdr/96UAL900982.md): Fan · failed · Dec 27, 1996 · N7451U · Boeing 727222 · Air Distribution Fan
  > CREW REPORTS, SMOKE SMELL IN AIRCRAFT WITH LEFT PACK RUNNING. *S/D* REPLACED FROZEN LT PACK COOLING FAN.
- [SDR 96UAL900353](https://openairdocs.org/sdr/96UAL900353.md): Battery Pack · discharged · May 17, 1996 · N7451U · Boeing 727222 · Emergency Lighting
  > EMERGENCY LIGHT AT ROW 21 FAILED TO TEST PER CREW. REPLACED BATTERY PACK AND LIGHT ASSEMBLY. CHECKS OKAY.
- [SDR 96UAL900122](https://openairdocs.org/sdr/96UAL900122.md): Pack · odor · Feb 16, 1996 · N7451U · Boeing 727222 · Cabin Cooling System
  > FUMES IN COCKPIT WITH PACKS RUNNING. SUPPLEMENTAL DATA UPDATE: OPERATED BOTH PACKS FOR 1 HOUR AND NO FUMES NOTICED.
- [SDR 95UAL900229](https://openairdocs.org/sdr/95UAL900229.md): Air Distribution · odor · Oct 25, 1995 · N7451U · Boeing 727222 · Air Distribution System
  > FUMES IN CABIN, SUSPECT APU. ACCOMPLISHED TROUBLE SHOOTING PER MM 49-00-08 H8. CLEANED ACCESSORY CASE AT PUMP AREA, CHECKED VENT, RAN APU AND BOTH PACKS HOT AND COLD FOR 1 HOUR AND NO OIL OR SMOKE SMELL.
- [SDR 95UAL900223](https://openairdocs.org/sdr/95UAL900223.md): Aural Warn Mod · malfunctioned · Oct 20, 1995 · N7451U · Boeing 727222 · Central Warning
  > DURING ENGINE FIRE WARNING TEST, FOUND WARNING BELL TO BE INTERMITTENT. REPLACED AURAL WARNING MODULE M6. OPERATIONAL CHECKED NORMAL WITH NO FURTHER PROBLEMS REPORTED.

## 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 = 'N7451U' AND deregistration_id = 'N7451U-2006-06-28'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/deregistered/N7451U-2006-06-28/reports

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