# Service difficulty reports: N312DL, cancelled Sep 5, 2014

A list on [N312DL, cancelled Sep 5, 2014](https://openairdocs.org/deregistered/N312DL-2014-09-05.md).

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

- [SDR DL73S040155](https://openairdocs.org/sdr/DL73S040155.md): Skin · cracked · Feb 12, 2004 · N312DL · Boeing 737232 · Fuselage Main, Plate/Skin
  > THE FUSELAGE SKIN WAS FOUND WITH A 4 INCH TYPICAL CRACK IMMEDIATELY ABOVE STRINGER 16L. THE CRACK RAN ALONG THE EDGE OF THE BONDED INTERNAL DOUBLER AT THE STRINGER. THE CRACK WAS REMOVED WITH A CUTOUT THROUGH THE SKIN AND BONDED DOUBLER AND REPAIRED WITH AN
- [SDR DL73S031139](https://openairdocs.org/sdr/DL73S031139.md): Line · chafed · Dec 27, 2003 · N312DL · Boeing 737232 · Hydraulic System, Main
  > A SYSTEM HYDRAULIC FAILURE ON FINAL, PRESSURE AND QUANTITY WENT TO ZERO. FOUND NR 2 ENGINE HYDRAULIC PUMP PRESSURE LINE CHAFED THROUGH. REPLACED LINE.
- [SDR DL73S031002](https://openairdocs.org/sdr/DL73S031002.md): Skin · cracked · Nov 8, 2003 · N312DL · Boeing 737232 · Fuselage Main, Plate/Skin
  > THE FUSELAGE SKIN WAS FOUND WITH A 2.5 INCH CRACK JUST BELOW STRINGER 18R AT FS 750. THE CRACK WAS REMOVED WITH A CUTOUT AND REPAIRED WITH AN EXTERNAL ALUMINUM REPAIR DOUBLER PER ER/A 385880-14, REV A.
- [SDR DL73S031001](https://openairdocs.org/sdr/DL73S031001.md): Bulkhead · cracked · Nov 8, 2003 · N312DL · Boeing 737232 · Fuselage Main, Bulkhead
  > A SMALL CRACK WAS FOUND EMANATING FROM A FASTENER HOLE IN THE FS 1016 AFT P-DOME WEB AT BL 0, WL 244. THE CRACK EMANATED IN 2 DIRECTIONS FROM THE HOLE AND WAS TOTAL OF.625 INCH LONG (INCLUDING HOLE DIA). THE CRACK WAS REPAIRED WITH AN ALUMINUM REPAIR DOUBLE
- [SDR DL73S030984](https://openairdocs.org/sdr/DL73S030984.md): Panel · delaminated · Nov 6, 2003 · N312DL · Boeing 737232 · Vertical Stabilizer, Plate/Skin
  > FOUND ON W-1 LETTER CHECK, VERTICAL STAB COMPOSITE T/E PANEL DELAMINATED 2 PLACES LEFT SIDE, 1 PLACE RIGHT SIDE. REPAIRED PER SRM 55-30-3 FIG 3.
- [SDR DL73S030983](https://openairdocs.org/sdr/DL73S030983.md): Wedge · dented · Nov 6, 2003 · N312DL · Boeing 737232 · Leading Edge Devices
  > FOUND ON W-1 LETTER CK, REPAIR LIFTING NUMBER 6 L/E SLAT T/E WEDGE 6 INCHES FROM O/B EDGE. REPAIRED PER SRM 51-40-20 AND OPERATION 1000.
- [SDR DL73K021351](https://openairdocs.org/sdr/DL73K021351.md): Odor · detected · Nov 20, 2002 · N312DL · Boeing 737232 · Air Distribution System
  > BURNING SMELL FILLS AIRCRAFT WHILE GASPER FAN IS ON OR OFF. A/C FILLED WITH SMOKE AT GATE. ALL ELECTR POWER REMOVED AND SMOKE STOPPED. COCKPIT ELECTR LOAD CENTER (CB'S,RELAYS,FEEDER CABLES ETC), NO DISCREPANCIES NOTED. INSP E/E COMPT FOR FLUID LEAKS, NONE
- [SDR DL73K021337](https://openairdocs.org/sdr/DL73K021337.md): Skin · cracked · Nov 17, 2002 · N312DL · Boeing 737232 · Fuselage Main, Plate/Skin
  > FUSELAGE / SKIN / FS 727 / STRG. 19R: CRACK REPAIR THE FUSELAGE SKIN WAS FOUND WITH A 2.5" CRACK ALONG THE BONDED DOUBLER LINE AT STRINGER 19R. THE CRACK IS TYPICAL OF THOSE NOTED IN BA
- [SDR DL73K020871](https://openairdocs.org/sdr/DL73K020871.md): Hydraulic Line · blown · Jul 25, 2002 · N312DL · Boeing 737232 · Hydraulic System, Main
  > LOSS OF A-HYD SYS WHEN LANDING GEAR HANDLE WAS LOWERED. BOTH LOW PRESS A-SYS LIGHTS ILLUM AND HYD QTY GAUGE WENT TO ZERO. LOUD BANG WAS HEARD WHEN GEAR WAS LOWERED. FOUND NOSE GEAR MAIN ACTUATOR PRESS LINE BLOWN. INSTALLED REPLACEMENT HYD LINE PER MM, HYD
- [SDR DL73K020341](https://openairdocs.org/sdr/DL73K020341.md): Garlock Seal · leaking · Mar 20, 2002 · N312DL · Boeing 737232 · Turbine Engine Oil System
  > NR 2 ENGINE OIL QUANTITY INDICATOR SLOWLY DROPPED TO 0.0 OIL PSI. OIL TEMPERATURE REMAINED WITHIN THE NORMAL OPERATING LIMITS. OIL PRESSURE, LOW YELLOW ARC AND FLICKERING OIL FILTER BYPASS LIGHT. ENGINE SHUTDOWN. FOUND STARTER GARLOCK SEAL LEAKING. REP
- [SDR DL73K020119](https://openairdocs.org/sdr/DL73K020119.md): Skin · cracked · Jan 31, 2002 · N312DL · Boeing 737232 · Fuselage Main, Plate/Skin
  > AN EXISTING DOUBLER REPAIR WAS FOUND FOR REPAIR OF CRACK CUTOUT BELOW THE STRINGER 19L LAP JOINT AT FS 500. THE REPAIR DOUBLER WAS REMOVED FOR INSTALLATION OF A BETTER FATIGUE DESIGN REPAIR. THE EXISTING CUTOUT AND FASTENER HOLES WERE INSPECTED TO ENSURE NO
- [SDR DL73K020045](https://openairdocs.org/sdr/DL73K020045.md): Charger · inoperative · Jan 12, 2002 · N312DL · Boeing 737232 · Emergency Lighting
  > EMERGENCY SEAT LIGHTS INOP AT SEAT ROWS 5 TO 9. REPLACED BATTERY CHARGER.
- [SDR DL73K020006](https://openairdocs.org/sdr/DL73K020006.md): Fuse · open · Jan 1, 2002 · N312DL · Boeing 737232 · Emergency Lighting
  > EMERG LIGHTS ROW 5-9 AND LT AND RT OVERWING HATCH EXIT SIGNS INOP. REPLACED 1EA FUSE IN FWD AND AFT POWER SUPPLIES. SYS OP NOW NORMAL
- [SDR DL73K010133](https://openairdocs.org/sdr/DL73K010133.md): Fitting · corroded · Jan 25, 2001 · N312DL · Boeing 737232 · Vertical Stabilizer, Attach Fittings
  > CORROSION WAS FOUND ON THE VERTICAL STABILIZER ATTACHMENT LUGS AND FUSELAGE LUGS. SOME OF THE BORES WERE OVERSIZED AND SOME OF THE FACES WERE BLENDED PER ERA 396619-14 AT HMV.
- [SDR DL73K010132](https://openairdocs.org/sdr/DL73K010132.md): Fitting · corroded · Jan 25, 2001 · N312DL · Boeing 737232 · Horizontal Stabilizer, Attach Fittings
  > THE LT AND RT HORIZONTAL STABILIZER ATTACH FITTINGS WERE FOUND CORRODED. CORROSION WAS REMOVED FROM SEVERAL BORES AND FACES. THE DAMAGE WAS REPAIRED PER ERA 396666-14 AT HMV.
- [SDR DL73K010087](https://openairdocs.org/sdr/DL73K010087.md): Floorbeam · cracked · Jan 18, 2001 · N312DL · Boeing 737232 · Fuselage Main, Floor Beam
  > CRACKS WERE FOUND IN THE WEB OF THE LONGITUDINAL FLOORBEAM BETWEEN FS 700 AND 717. THE WEB AND CHORDS WERE INSPECTED AND REPAIRED PER S/B 737-57-1210 AT HMV.
- [SDR DL73K000703](https://openairdocs.org/sdr/DL73K000703.md): Light · inoperative · Apr 12, 2000 · N312DL · Boeing 737232 · Emergency Lighting
  > DURING LAYOVER, FOUND L2 SLIDE LIGHT INOP. RELAMPED LIGHT, CHECKS GOOD PER MM.
- [SDR DL73K000301](https://openairdocs.org/sdr/DL73K000301.md): Line · cracked · Feb 13, 2000 · N312DL · Boeing 737232 · Hydraulic System, Main
  > ON ARRIVAL PBI B-LOW QUANTITY LIGHT ILLUMINATED WITH LOSS OF HYD FLUID. INSTALLED INTRIM LINE BETWEEN NR 1 B-PUMP AND FILTER HOUSING. REF IPC 29-14-0-5E ITEM 156 (P/N 293201291).
- [SDR DL73K992644](https://openairdocs.org/sdr/DL73K992644.md): Panel · loose · Dec 3, 1999 · N312DL · Boeing 737232 · Fuselage Main, Plate/Skin
  > LOUD NOISE COMING FROM RT REAR OF AIRCRAFT, FELT VIBRATION ON PEDALS DURING CRUISE AT FL 150 AND 240. NO AIRCRAFT CONTROL PROBLEMS NOTICED. NO SIGNIFICANT PRESSURIZATION PROBLEMS NOTICED. INSPECTED A/C PER MM 5-51-281. FOUND DEBRIS ON AFT PRESS RELIEF VALV
- [SDR DL73K981951](https://openairdocs.org/sdr/DL73K981951.md): Temp Bulb · failed · Sep 20, 1998 · N312DL · Boeing 737232 · Engine Oil Temperature
  > SHUT DOWN NR 1 ENGINE IN FLIGHT DUE TO HIGH OIL TEMP. FOUND NR 1 ENG OIL TEMP BULB OPEN. REPLACED TEMP BULB PER M/M, OPN CKD GOOD. LK CK GOOD. RAN ENG PER PFHB. ALL CKS GOOD.
- [SDR DL73K981610](https://openairdocs.org/sdr/DL73K981610.md): Power Supply · inoperative · Aug 6, 1998 · N312DL · Boeing 737232 · Emergency Lighting
  > EMERGENCY LIGHTS FLASHING RT AISLE AND AFT BULKHEAD. REPLACED POWER SUPPLY.
- [SDR DL73K980559](https://openairdocs.org/sdr/DL73K980559.md): Elt Locator · damaged · Mar 11, 1998 · N312DL · Boeing 737232 · Emergency Locator Beacon
  > DURING L/O CHECK, FOUND ELT BEACON DAMAGED. REPLACED BEACON.
- [SDR DL73K970391](https://openairdocs.org/sdr/DL73K970391.md): Battery Pack · discharged · Mar 3, 1997 · N312DL · Boeing 737232 · Emergency Lighting
  > EMERGENCY EXIT LIGHTS INOP AT ROWS 1, 2, 3. REPLACED BATTERY PACK AND POWER SUPPLY FOR CABIN LIGHTS.
- [SDR DL73K970120](https://openairdocs.org/sdr/DL73K970120.md): Stringer · cracked · Jan 18, 1997 · N312DL · Boeing 737232 · Fuselage Main, Longeron/Stringer
  > THE LT KEEL CHORD STR 27L WAS FOUND CORRODED AND CRACKED AT STA 727A. THE DAMAGE IS SEVERE ENOUGH THAT THE CHORD WILL HAVE TO BE REPLACED. THIS WILL REQUIRE 5 FRAMES, STA 727B THROUGH STA 807 TO BE CUT TO ALLOW REPLACEMENT OF THE CHORD.
- [SDR DL73K970123](https://openairdocs.org/sdr/DL73K970123.md): Fitting · cracked · Jan 17, 1997 · N312DL · Boeing 737232 · Wing, Landing Gear Attach Fittings
  > THE LEFT WING OUTBOARD AFT SUPPORT FITTING FOR THE MAIN LANDING GEAR BEAM WAS FOUND CRACKED. CRACKING IS TYPICAL TO THAT DESCRIBED IN BOEING SERVICE BULLETING 737-57-1216. SHIP 312 IS IDENTIFIED AS A GROUP 5 BY THE SERVICE BULLETIN. THE CRACKED FITTING WILL
- [SDR DL73K970177](https://openairdocs.org/sdr/DL73K970177.md): Skin · cracked · Jan 16, 1997 · N312DL · Boeing 737232 · Fuselage Main, Plate/Skin
  > A CRACK WAS FOUND IN THE FUSELAGE SKIN AT THE L2 DOOR CUT-OUT IN THE UPPER AFT CORNER. THE CRACK WAS LOCATED IN THE INNER LAYER OF THE BONDED SKIN ASSEMBLY AND MEASURED APPROX. 1.75 INCHES IN LENGTH. THE CRACK WAS REPAIRED PER S/B 737-53-1149.
- [SDR DL73K970163](https://openairdocs.org/sdr/DL73K970163.md): Angle · corroded · Jan 16, 1997 · N312DL · Boeing 737232 · Fuselage Miscellaneous Structure
  > L-1 DOORWAY FLOOR Z- ANGLE CORROSION ENTIRE LENGTH. AUTHORIZED METHOD OF REPAIR. REPAIR PER M/M 53-21-0. CORRECTION - REMOVED DRAIN FROM Z-ANGLE. BEGAN CORROSION REMOVAL PER SRM 57-10-6. DRILLED UP NEW Z-ANGLE. TREATED/ PRIMED AREA, BEGAN INSTALLATION OF
- [SDR DL73S961920](https://openairdocs.org/sdr/DL73S961920.md): Skin · cracked · Aug 7, 1996 · N312DL · Boeing 737232 · Fuselage Main, Plate/Skin
  > THE R-1 DOORWAY CRACKED AT THE LOWER AFT CORNER APPROX 1.4 INCH LENGTH. THE CRACK WILL BE REPAIRED PER B737-200, SRM 53-30-3 FIG 26 WITH THE EXCEPTION OF BLIND FASTENER SUBSTITUTION TO FACILITATE MTC. ALSO, FOUND THAT THE CRACK ENDED IN A NUTPLATE HOLE WH
- [SDR DL73S961364](https://openairdocs.org/sdr/DL73S961364.md): Actuator · failed · Jun 5, 1996 · N312DL · Boeing 737232 · Leading Edge Slat Actuator
  > NR 4 SLAT ACTUATOR FAILED TO EXTEND ON APPROACH. REPLACED NR 4 SLAT ACTUATOR, CHECKS OK.
- [SDR DL73S960254](https://openairdocs.org/sdr/DL73S960254.md): Blkhd Web · cracked · Jan 29, 1996 · N312DL · Boeing 737232 · Fuselage Main, Bulkhead
  > REF. E.O. 03-069482-12 OPN. 445. WEB IS CRACKED AT TWO LOCATIONS JUST INBOARD AND ONE LOCATION JUST OUTBOARD OF THE VERTICAL STIFFENER AT LBL 5.7 BETWEEN WL 207 AND WL 184. WEB IS CRACKED AT TWO LOCATIONS JUST INBOARD OF VERTICAL STIFFENER AT RBL 5.7 BETWEEN
- [SDR DL73S950844](https://openairdocs.org/sdr/DL73S950844.md): Floorbeam · cracked · Jan 26, 1995 · N312DL · Boeing 737232 · Fuselage Main, Floor Beam
  > THE BL 0.07 FLOOR BEAM OF THE WING CENTER SECTION IS CRACKED AT STA 663, AND THE UPPER CAP OF THE BEAM IS COMPLETELY CRACKED. THE WEB AND WEB DOUBLER ARE CRACKED APPROXIMATELY 4 INCHES AT THE SAME LOCATION. THE CRACKS ARE TYPICAL PER BOEING SERVICE BULLETIN R

## 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 = 'N312DL' AND deregistration_id = 'N312DL-2014-09-05'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/deregistered/N312DL-2014-09-05/reports

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