# Service difficulty reports: Boeing 727-31C

A list on [Boeing 727-31C](https://openairdocs.org/model/boeing-727-31c.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 18 · 885 reports

- [SDR UPS07249235](https://openairdocs.org/sdr/UPS07249235.md): Line · leaking · Feb 21, 2007 · N922UP · Boeing 72731C · Hydraulic System, Main
  > INSPECTION TYPE:N/A A-SYSTEM HYDRAULIC QUANTITY LOSS DURING FINAL APPROACH. NO EMERGENCY DECLARED. MX IS I/W REPLACING A LEAKING RETURN LINE. FOUND UNION LEAKING AT A SYSTEM PRESS LINE, REMOVED AND REPLACED UNION, LOCATED AND MARKED ON A AFT RIGHT STAIRWELL
- [SDR UPS07249102](https://openairdocs.org/sdr/UPS07249102.md): Light · inoperative · Feb 1, 2007 · N922UP · Boeing 72731C · Emergency Lighting
  > INSPECTION TYPE:N/A EMERGENCY EXIT LIGHT INOP. PERFORMED EMERGENCY LIGHT CHECK PER MM 33-50-01-5. NO DEFECT NOTED.
- [SDR UPS06248770](https://openairdocs.org/sdr/UPS06248770.md): Light · inoperative · Dec 15, 2006 · N926UP · Boeing 72731C · Emergency Lighting
  > EMERGENCY EXIT LIGHTS INOP. REMOVED AND REPLACED BATTERIES AND OPS CK IAW MM 33-50-01-5.
- [SDR UPS06248392](https://openairdocs.org/sdr/UPS06248392.md): Light · inoperative · Nov 1, 2006 · N926UP · Boeing 72731C · Emergency Lighting
  > FOUND EMERGENCY LIGHTS INOP. REMOVED AND REPLACED EMERGENCY LIGHT BATTERIES AND OPERATIONAL CHECK PER MM 33-50-01-5 CKS NORMAL.
- [SDR UPS06247166](https://openairdocs.org/sdr/UPS06247166.md): Battery Pack · discharged · Jun 21, 2006 · N926UP · Boeing 72731C · Emergency Lighting
  > INSPECTION TYPE:N/A EMERGENCY EXIT LIGHT INOP AT CABIN DOOR. REPLACED BATTERY PACK PER MM 33-50-90-2.
- [SDR UPS06247165](https://openairdocs.org/sdr/UPS06247165.md): Light · inoperative · Jun 21, 2006 · N926UP · Boeing 72731C · Emergency Lighting
  > INSPECTION TYPE:N/A EMERGENCY LIGHT INOP AT COCKPIT DOOR. REMOVED AND REPLACED LIGHT ASSY, OPS CHECK NORMAL.
- [SDR UPS06247167](https://openairdocs.org/sdr/UPS06247167.md): Smoke Goggles · scratched · Jun 20, 2006 · N922UP · Boeing 72731C · Emergency Equipment
  > INSPECTION TYPE:N/A 2ND OBSERVER SMOKE GOGGLES BADLY SCRATCHED. REMOVED AND REPLACED 2ND OBSERVER SMOKE GOGGLES.
- [SDR UPS05245892](https://openairdocs.org/sdr/UPS05245892.md): Hydraulic System · leaking · Dec 23, 2005 · N926UP · Boeing 72731C · Hydraulic System, Main
  > INSPECTION TYPE:N/A ATB - HYD QTY AFTER TAKEOFF WENT TO 2.0 GALS AFTER FLAP RETRACTION QTY HELD STEADY AT 2.3 GALS. FOUND ASYS QTY LOW, SERVICED TO PROPER LEVEL PER M/M 12-12-00-2. CHECKED L/E SLAT ACTUATOR AND FLAP POW'S FOR LEAKS, NONE FOUND. NO OTHER LEA
- [SDR UPS05245846](https://openairdocs.org/sdr/UPS05245846.md): Light · inoperative · Nov 26, 2005 · N926UP · Boeing 72731C · Emergency Lighting
  > ONE LAMP INOP IN EMERGENCY EXIT LIGHT AT L1 DOOR. RELAMPED OK FOR SERVICE.
- [SDR UPS05245464](https://openairdocs.org/sdr/UPS05245464.md): Slide · inoperative · Sep 18, 2005 · N926UP · Boeing 72731C · Escape Slide
  > INSPECTION TYPE:N/A L-1 DOOR SLIDE INOP. REMOVED AND REPLACED SLIDE ASSY PER 25-60-14, THIS CLEARS M310071.
- [SDR UPS05245518](https://openairdocs.org/sdr/UPS05245518.md): Slat Track · corroded · Sep 13, 2005 · N922UP · Boeing 72731C · Leading Edge Devices
  > ON REMOVAL OF NR 6 SLAT I/B TRACK SKIN SUPPORT BRACKET, CORROSION ON TEE TRACK FOUND BENEATH BRACKET. NR 6 SLAT TRACK REPLACED IAW MM 27-81-11.
- [SDR UPS05245433](https://openairdocs.org/sdr/UPS05245433.md): Lap Joint · corroded · Sep 2, 2005 · N922UP · Boeing 72731C · Fuselage Main, Plate/Skin
  > INSPECTION TYPE:C 2 BULGES FOUND ON LAP JOINT AT STRINGER 4R BS 1139. DAMAGED AREA CUT OUT IAW SRM 53-30-3 FIG 5 AND REPAIRED IAW SRM 53-30-3 FIG 5.
- [SDR UPS05245465](https://openairdocs.org/sdr/UPS05245465.md): Bushing · corroded · Sep 1, 2005 · N922UP · Boeing 72731C · Nacelle/Pylon Miscellaneous Structure
  > INSPECTION TYPE:C NR 1 ENGINE FWD ENGINE MOUNT PITTING CORROSION IN BORE OF MOUNT HOLES (TW O/B HOLES). BUSHINGS REPLACED IAW SOPM 20-50-03 AND EO B727-5440-1592 APNDX-A.
- [SDR UPS05245466](https://openairdocs.org/sdr/UPS05245466.md): Rib · cracked · Aug 30, 2005 · N922UP · Boeing 72731C · Leading Edge Devices
  > INSPECTION TYPE:C-CRACK ON NR 8 SLAT O/B RIB AT I/B TRACK ATTACHMENT AREA. SLAT STOP DRILLED IAW AAAE EO 2005-081-004 REV 1 (UPS ENG FILE NR 727- 57-20133).
- [SDR UPS05245437](https://openairdocs.org/sdr/UPS05245437.md): Attach Fitting · cracked · Aug 28, 2005 · N922UP · Boeing 72731C · Wing, Attach Fittings
  > INSPECTION TYPE: C, CRACK IN ZEE SECTION ATTACHED TO FRAME AT BS 1050 LBL 21. Z-SECTION REPAIRED IAW SRM 51-40-4 FIG 2.
- [SDR UPS05245436](https://openairdocs.org/sdr/UPS05245436.md): Floorbeam · corroded · Aug 28, 2005 · N922UP · Boeing 72731C · Fuselage Main, Floor Beam
  > INSPECTION TYPE:C SURFACE CORRSION AT BS 1130 JOINT BETWEEN FLOORBEAM TOP AND CREASE WEB AT RBL 62. REPAIR PARTS FABRICATED IAW AAAE EO 2005-081-003 - UPS ENG FILE 72 7-53-20189. DOUBLER INSTALLED IAW SRM 51-30-02.
- [SDR UPS05245435](https://openairdocs.org/sdr/UPS05245435.md): Bulkhead · corroded · Aug 28, 2005 · N922UP · Boeing 72731C · Fuselage Main, Bulkhead
  > INSPECTION TYPE: C, CORROSION ON LT WHEEL WELL BULKHEAD AT BS 870 - FWD FACE 25 INCH FROM O/B EDGE AND 20 INCH FROM BOTTOM EDGE. REPAIR CARRIED OUT IAW AAAE RO 2005-081-2 -UPS ENG FILE NUMBER 727-53 -20190.
- [SDR UPS05245442](https://openairdocs.org/sdr/UPS05245442.md): Shear Tie · cracked · Aug 27, 2005 · N922UP · Boeing 72731C · Wing Main, Frame Structure
  > INSPECTION TYPE:C SUSPECT CRACK IN CENTER TANK FRONT SPAR TO STIFFENER SHEAR TIE CLIP O/B AFT RADIUS LBL 25-08. SHEAR TIE CLIP REPLACED IAW 51-30-02.
- [SDR UPS05245470](https://openairdocs.org/sdr/UPS05245470.md): Flap Track · corroded · Aug 26, 2005 · N922UP · Boeing 72731C · Trailing Edge Flaps
  > INSPECTION TYPE:C-CORROSION ON NR 4 FLAP TRACK AFT MOUNT PAD CORROSION REMOVED IAW SOPM 20-10-01 P1 AND EO B727-5742-0651K & TEMPER ETCHED 2B (3) IAW SOPM 20-10-01. CAD PLATED IAW OHM 20-42-10.
- [SDR UPS05245469](https://openairdocs.org/sdr/UPS05245469.md): Flap Track · corroded · Aug 26, 2005 · N922UP · Boeing 72731C · Trailing Edge Flaps
  > INSPECTION TYPE:C-CORROSION FOUND ON FWD MOUNTING PAD OF NR 4 FLAP TRACK. CORROSION REMOVED IAW SOPM 20-10-01 P1 AND EO B727-5742-0651K. SURFACE TEMPER ETCHED 2B (3) IAW SOPM 20-10-01. CAD PLATED IAW OHM 20-42-10.
- [SDR UPS05245468](https://openairdocs.org/sdr/UPS05245468.md): Flap Track · corroded · Aug 26, 2005 · N922UP · Boeing 72731C · Trailing Edge Flaps
  > INSPECTION TYPE:C-CORROSION ON NR 4 FLAP TRACK FWD MOUNTING UPPER AND LWR, ALSO INNER RADIUS OF HOLES. CORROSION REMOVED IAW SOPM 20-10-01 P1 AND EO B727-5742-0651K AND TEMPER ETCHED IAW SOPM 20-10-01.
- [SDR UPS05245430](https://openairdocs.org/sdr/UPS05245430.md): Fitting · corroded · Aug 25, 2005 · N922UP · Boeing 72731C · Nose/Tail Landing Gear
  > INSPECTION TYPE:C CORROSION ON NLG TRUNNION FITTINGS LT AND RT. CORROSION REMOVED FROM LT & RT TRUNNION FITTINGS IAW SRM 53-40-01. NEW BUSHINGS FABRICATED AND INSTALLED IAW MM 53-40-01 AND 53-40-01 FIG 2.
- [SDR UPS05245467](https://openairdocs.org/sdr/UPS05245467.md): Stiffener · cracked · Aug 23, 2005 · N922UP · Boeing 72731C · Wing Miscellaneous Structure
  > INSPECTION TYPE:C-CRACK IN VERTICAL STIFFENER LT WING FRONT SPAR AT STA 557. STIFFENER REPLACED IAW SRM 51-30-2 AND DRW NR 65-16200.
- [SDR UPS05245431](https://openairdocs.org/sdr/UPS05245431.md): Channel · cracked · Aug 22, 2005 · N922UP · Boeing 72731C · Elevator Structure
  > INSPECTION TYPE:C SUPPORT CHANNEL CRACKED AT TOP END, JUST I/B OF RT ELEVATOR NR 1 HINGE BEAM, AFT OF ELEVATOR I/B INPUT ROD. CHANNEL FABRICATED IAW SRM 51-20-1 FIG 7. CHANNEL REPLACED IAW SRM 51-30-02.
- [SDR UPS05245434](https://openairdocs.org/sdr/UPS05245434.md): Stiffener · corroded · Aug 19, 2005 · N922UP · Boeing 72731C · Fuselage Miscellaneous Structure
  > INSPECTION TYPE:C HORIZONTAL STIFFENER CORRODED IN CABIN AT BS 870 FWD SIDE, RBL 19. REPLACEMENT STIFFENER FABRICATE IAW SRM 51-20-10 AND DRAWING 65-23114. STIFFENER INSTALLED IAW SRM 51-30-02 AND DRAWING 65-16328.
- [SDR UPS05245526](https://openairdocs.org/sdr/UPS05245526.md): Fitting · leaking · Aug 17, 2005 · N922UP · Boeing 72731C · Aircraft Fuel Distribution System
  > INSPECTION TYPE: C+SI, FUEL LEAK FROM UNDERNEATH LT LANDING GEAR FWD TRUNNION SUPPORT SITTING SEEMS TO BE COMING FROM LWR LARGE BOLTS. LWR I/B FASTENERS (X2) REMOVED IAW TRUNNION REMOVED AND CORROSION FOUND SRM 51-30-02 AND BOTH HOLES REAMED TO 1ST OVERSIZE
- [SDR UPS05244731](https://openairdocs.org/sdr/UPS05244731.md): Skin · corroded · Jun 15, 2005 · N926UP · Boeing 72731C · Fuselage Main, Plate/Skin
  > C NDI HAS MATERIAL LOSS INDICATION AT S19 RT BS 441, SKIN CUT OUT AND REPAIR IN CONJUNCTION WITH NRC 792106 LAP REPAIR.
- [SDR UPS05244729](https://openairdocs.org/sdr/UPS05244729.md): Bushing · damaged · Jun 14, 2005 · N926UP · Boeing 72731C · Nacelle/Pylon Miscellaneous Structure
  > ENGINE NR 3 FWD MOUNT AFT O/B HOLE REPAIR BUSHING DAMAGED. BUSHING REPLACED IAW UPS EO B727-5440-11592-A.
- [SDR UPS05244728](https://openairdocs.org/sdr/UPS05244728.md): Structure · corroded · Jun 14, 2005 · N926UP · Boeing 72731C · Nacelle/Pylon Miscellaneous Structure
  > ENG NR 1 FWD MOUNT BOTH O/B HOLES HAVE PITTING CORROSION ON REPAIR BUSHINGS. BUSHINGS REPLACED IAW UPS EO B727-5440-11592-A.
- [SDR UPS05244725](https://openairdocs.org/sdr/UPS05244725.md): Skin · cracked · Jun 13, 2005 · N926UP · Boeing 72731C · Fuselage Main, Plate/Skin
  > CRACK IN FUSELAGE SKIN BS 355 BETWEEN S26L AND 27L. REPAIR CARRIED OUT IAW SRM 53-30-3 AND 51-10-2.
- [SDR UPS05244732](https://openairdocs.org/sdr/UPS05244732.md): Fitting · cracked · Jun 12, 2005 · N926UP · Boeing 72731C · Fuselage, Stabilizer Attach Fittings
  > CLEAT CRACKED O/B OF S26R AT BS 600 LWR SECTION OF CLEAT ADJACENT TO S 26. REMOVED DAMAGED CLEAT IAW SRM 51-30-2. FABRICATED CLEAT IAW SRM 51-20-1. INSTALLED CLEAT IAW SRM 51-30-2.
- [SDR UPS05244727](https://openairdocs.org/sdr/UPS05244727.md): Support Bracket · cracked · Jun 11, 2005 · N926UP · Boeing 72731C · Engine Thrust Reverser
  > ENG NR 3 THRUST REVERSER O/B FAIRING MID SUPPORT BRACKET CRACKED. BRACKET REPLACED IAW SRM 51-30-2.
- [SDR UPS05244726](https://openairdocs.org/sdr/UPS05244726.md): Support Bracket · cracked · Jun 11, 2005 · N926UP · Boeing 72731C · Engine Thrust Reverser
  > ENG NR 1 THRUST REVERSER O/B FAIRING MID SUPPORT BRACKET CRACKED. BRACKET REPLACED IAW SRM 51-30-2.
- [SDR UPS05244733](https://openairdocs.org/sdr/UPS05244733.md): Skin · cracked · Jun 10, 2005 · N926UP · Boeing 72731C · Fuselage Main, Plate/Skin
  > CRACK ON SKIN AT FWD ENTRY DOOR UPPER FWD AREA (BETWEEN S6 AND S 7L) OF CUT OUT. REPAIR CARRIED OUT IAW EO B727-5330-1460 OPTION 1.
- [SDR UPS05244730](https://openairdocs.org/sdr/UPS05244730.md): Support Bracket · cracked · Jun 10, 2005 · N926UP · Boeing 72731C · Trailing Edge Flap Actuator
  > NR 2 LE FLAP ACTUATOR O/B SUPPORT BRACKET CRACKED AT UPPER FWD CORNER. BRACKET FABRICATED AND REPLACED IAW SRM 51-20-1, 51-30-02 AND DRAWING 65 -16269.
- [SDR UPS05244738](https://openairdocs.org/sdr/UPS05244738.md): Hinge · cracked · Jun 7, 2005 · N926UP · Boeing 72731C · Ailerons
  > INSPECTION TYPE:C SUSPECT CRACK ON LEFT O/B AILERON I/B TAB HINGE ASSY LWR HALF. HFEC CARRIED OUT ON SUSPECT AREA IAW B727 NDTM 51-00-00 PT6 FIG 4, CRACK CONFIRMED. FWD HINGE HALF REPLACED IAW SRM 51-30-02. APPLIED CIC TO EXPOSED AREA IAW SRM 51-10-02.
- [SDR UPS05244737](https://openairdocs.org/sdr/UPS05244737.md): Skin · debonded · Jun 7, 2005 · N926UP · Boeing 72731C · Elevator, Tab Structure
  > INSPECTION TYPE:C RT ELEVATOR TAB DISBONDED AT LOWER SURFACE 24 INCHES O/B OF INNER EDGE, AT LOWER SURFACE 3 INCHES FROM O/B EDGE 2 SUSPECT AREA RT UPPER OUTER CORNER AND RT UPPER INNER CORNER. REMOVED ELEVATOR TAB IAW MM 27-30-11. REPAIRED TAB IAW SRM 51-40
- [SDR UPS05244736](https://openairdocs.org/sdr/UPS05244736.md): Skin · corroded · Jun 7, 2005 · N926UP · Boeing 72731C · Elevator, Tab Structure
  > INSPECTION TYPE:C LT ELEVATOR TAB UPPER SKIN CORRODED 5 INCHES FROM O/B END. REMOVED CORROSION IAW SRM 51-10-01, BLENDOUT FOUND TO BE OUT OF LIMITS IAW SRM 55-20-01. REMOVED TAB IAW MM 27-30-11. TAB UPPER SKIN REPAIRED IAW SRM 51-40-20. TAB REPAINTED IAW M
- [SDR UPS05244735](https://openairdocs.org/sdr/UPS05244735.md): Lap Joint · corroded · Jun 7, 2005 · N926UP · Boeing 72731C · Fuselage Main, Plate/Skin
  > INSPECTION TYPE:C SUSPECT CORROSION AT LAP JOINT S19R BETWEEN BS 390 AND 441 AREA BETWEEN BS 390 AND 441 PAINT STRIPPED IAW MM 51-20-01. AREA REINSPECTED, COROSION FOUND EVIDENT CONTINUE OPEN UP AND REPAIR IAW APPX C OF EO B727-5330-0509. REMOVED CORROSION I
- [SDR UPS04243402](https://openairdocs.org/sdr/UPS04243402.md): Bulb · inoperative · Oct 22, 2004 · N927UP · Boeing 72731C · Emergency Lighting
  > INSPECTION TYPE:N/A EMERGENCY LIGHT SWITCH OFF IND BULB INOP. REMOVED AND REPLACED EMERGENCY LIGHT SWITCH OFF IND BULB IAW 33-1000.
- [SDR UPS04243150](https://openairdocs.org/sdr/UPS04243150.md): Actuator · broken · Sep 22, 2004 · N926UP · Boeing 72731C · Landing Gear Actuator
  > INSPECTION TYPE:N/A ON APPROACH RIGHT MAIN UPLOCKED LIGHT GEAR DOOR LIGHT REMAINED ON. RECYCLED ONCE, LIGHTS STILL ON, MANUALLY CRANKED RIGHT GEAR DOWN. REPLACED RIGHT MLG LOCK ACTUATOR, PERFORMED MAIN GEAR EXTENSION AND RETRACTION ADJ/TEST W/R/T MM 32-32-00
- [SDR UPS04243022](https://openairdocs.org/sdr/UPS04243022.md): Light · malfunctioned · Aug 25, 2004 · N926UP · Boeing 72731C · Emergency Lighting
  > FLT STA EMERGENCY LIGHT WAS COMING ON IN FLT IN ARM POST. REMOVED AND REPLACED EMERGENCY LIGHT ASSY IAW 33-50-00. OPS CHECK GOOD.
- [SDR UPS04242900](https://openairdocs.org/sdr/UPS04242900.md): Switch · inoperative · Aug 13, 2004 · N926UP · Boeing 72731C · Emergency Lighting
  > EMERGENCY EXIT LIGHTS INOPERATIVE, COCKPIT DOOR. TURNED BATTERY SWITCH ON PLACED EMERGENCY LIGHT SWITCH TO ARMED, LIGHT CHECKS GOOD.
- [SDR UPS04242550](https://openairdocs.org/sdr/UPS04242550.md): Light · inoperative · Jun 9, 2004 · N926UP · Boeing 72731C · Emergency Lighting
  > EMERGENCY EXIT LIGHTS NOT OPERATING. RESEATED EMERGENCY LIGHT ASSY, OPS CHECK NORMAL.
- [SDR UPS04242205](https://openairdocs.org/sdr/UPS04242205.md): Flap Track · cracked · Apr 7, 2004 · N926UP · Boeing 72731C · Trailing Edge Flaps
  > INSPECTION TYPE: C, NR 6 FLAP TRACK FAIRING I/B TRACK IS CRACKED. FAIRING TRACK REPLACED IAW SRM 51-30-02.
- [SDR UPS04242181](https://openairdocs.org/sdr/UPS04242181.md): Casting · cracked · Apr 7, 2004 · N926UP · Boeing 72731C · Trailing Edge Flaps
  > INSPECTION TYPE: C, RIGHT O/B FLAP I/B FLAP TRACK FAIRING HAS CRACKED CASTING/BRACKET. CRACKED BRACKET REMOVED IAW SRM 51-30-02 & STOP DRILLED IAW SRM 51-10-1. REPAIR SECTION FABRICATED IAW SRM 51-40-3 & INSTALLED IAW SRM 51-40-3.
- [SDR UPS04242260](https://openairdocs.org/sdr/UPS04242260.md): Angle · corroded · Apr 6, 2004 · N926UP · Boeing 72731C · Fuselage Miscellaneous Structure
  > INSPECTION TYPE:C LT 950 FITTING LWR SPLICE ANGLE HAS SUSPECT CORROSION UNDER THE ANGLE. ANGLE WAS ALSO FOUND CORRODED AFTER REMOVAL. ANGLE REPLACED AND BS 950 REPAIR CARRIED OUT IAW SRM 51-20-1 AND SMRO EO 2004-027-002. UPS ENGINEERING FILE NR B727-5310-203
- [SDR UPS04242241](https://openairdocs.org/sdr/UPS04242241.md): Door Frame · cracked · Apr 6, 2004 · N926UP · Boeing 72731C · Fuselage Main, Structure
  > INSPECTION TYPE:C LWR FWD CARGO DOOR CUTOUT FRAME, CRACK INDICATION IN AREA NR 4 FWD DOOR STOP. REPAIR CARRIED OUT IAW SMRO EO 2004-027-01 UPS ENGINEERING FILE NR B727-5310-20302-A
- [SDR UPS04242206](https://openairdocs.org/sdr/UPS04242206.md): Frame · corroded · Apr 6, 2004 · N926UP · Boeing 72731C · Aerodynamic Fairings
  > INSPECTION TYPE: C, FUSELAGE FAIRING 3430 HAS EXTENSIVE CORROSION TO THE FORMED FRAME HOLDING THE ANCHOR NUTS (FWD SIDE OF FAIRING). REPAIR CARRIED OUT IAW SRM 53-10-01, 51-20-01, 51-10-02 & 51-30-02.
- [SDR UPS04242204](https://openairdocs.org/sdr/UPS04242204.md): Beam · corroded · Apr 6, 2004 · N926UP · Boeing 72731C · Horizontal Stabilizer Structure
  > INSPECTION TYPE: C, RT HORIZONTAL STABILIZER UPPER TRAILING EDGE BEAM HAS CORROSION AFT OF BALANCE PANEL BAYS. BEAM REPLACED IAW SRM 51-30-2 AND DRG NR 65-22987.

Next page: https://openairdocs.org/model/boeing-727-31c/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 aircraft_model_key = '72731C'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/model/boeing-727-31c/reports

---
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