# Service difficulty reports: Boeing 747-2B5F

A list on [Boeing 747-2B5F](https://openairdocs.org/model/boeing-747-2b5f.md).

Newest first. General aviation reporting is voluntary.

- [SDR TX9Y20110928006](https://openairdocs.org/sdr/TX9Y20110928006.md): Valve · malfunctioned · Sep 27, 2011 · N708SA · Boeing 7472B5F · Engine (Turbine/Turboprop)
  > AIRCRAFT DEPARTED AIRPORT TO PERFORM A FUNCTIONAL TEST FLT, AFTER HEAVY CHECK. ON CLIMBOUT, ACFT DEVELOPED PROBLEMS WITH THE NR 1 ENGINE NACELLE OVERHEAT RUNNING HIGH WHICH INDICATED ON BOTH A AND B DETECTION SYSTEM INDICATORS, ALSO AT THIS TIME A "BURNING OD
- [SDR TX9Y20110924002](https://openairdocs.org/sdr/TX9Y20110924002.md): Structure · damaged · Sep 21, 2011 · N708SA · Boeing 7472B5F · Nacelle/Pylon, Main Frame
  > DURING ACCOMPLISHMENT OF SB 747-54-2230 R0, FIGURE 14 ON THE STRUT STRUCTURE ASSEMBLY AT NR 3 PYLON, CRACK DAMAGE AT NUMEROUS HOLES WAS FOUND IN THE CAP SKIN ASSEMBLY, THE BULKHEAD STRAP AND THE FRONT SPAR CHORD. DAMAGE WAS ALSO FOUND IN THE BULKHEAD FRAMES A
- [SDR TX9Y20110924001](https://openairdocs.org/sdr/TX9Y20110924001.md): Structure · damaged · Sep 21, 2011 · N708SA · Boeing 7472B5F · Nacelle/Pylon, Main Frame
  > DURING ACCOMPLISHMENT OF SB 747-54-2230 R0, FIGURE 14 ON THE STRUT STRUCTURE ASSEMBLY AT NR 2 PYLON, CRACK DAMAGE AT NUMEROUS FASTENER HOLES WAS FOUND IN THE CAP SKIN ASSEMBLY, THE BULKHEAD STRAP AND THE FRONT SPAR CHORD. DAMAGE WAS ALSO FOUND IN THE BULKHEAD
- [SDR TX9Y20110921001](https://openairdocs.org/sdr/TX9Y20110921001.md): Frame · damaged · Sep 18, 2011 · N708SA · Boeing 7472B5F · Fuselage Main, Frame
  > DURING INSPECTION, A DAMAGE WAS FOUND COMMONT TO A TOOL HOLE OF BULKHEAD AT STA1140, S-18R TO S-19R. AND NO ALLOWANCE DAMAGE LIMIT WAS PROVIDED IN SRM. A REPAIR THAT BLENDED OUT THE DAMAGED FRAME WEB AT A TOOLING HOLE AND REFINISHED THE SURFACE PER BOEING ME
- [SDR 2011F00162](https://openairdocs.org/sdr/2011F00162.md): Mount · cracked · Jul 7, 2011 · N704SA · Boeing 7472B5F · Engine Mount Section
  > DURING EDDY CURRENT CHECK, PYLON NR 3 REAR ENGINE MOUNT BULKHEAD OTBD UPPER AFT FRAME FOUND WITH CRACK. CRACK LENGTH APPROX 10MM. FINDING DISCOVERED DURING 'C1 & C2' CHECK. (OPEN)
- [SDR 2011F00161](https://openairdocs.org/sdr/2011F00161.md): Skin · cracked · Jul 7, 2011 · N704SA · Boeing 7472B5F · Nacelle/Pylon, Plate/Skin
  > PYLON NR 3 UPPER SKIN EDGE AND FASTENER HOLES FOUND WITH CRACK DURING EDDY CURRENT CHECK. FINDING DISCOVERED DURING 'C1+C2' CHECK FROM 08 JUN 2011 TO 22 JULY 2011. (OPEN)
- [SDR 2011F00160](https://openairdocs.org/sdr/2011F00160.md): Mount · cracked · Jul 7, 2011 · N704SA · Boeing 7472B5F · Engine Mount Section
  > CRACK DETECTED DURING LOW FREQUENCY EDDY CURRENT CHECK ON NR3 PYLON REAR ENGINE MOUNT BULKHEAD UPPER CAP SKIN STRAP ADJACENT TO FRONT SPAR FITTING. FINDING DISCOVERED DURING 'C1+C2' CHECK FROM 08 JUN 2011 TO 22 JULY 2011. (OPEN)
- [SDR 2011F00159](https://openairdocs.org/sdr/2011F00159.md): Mount · cracked · Jul 7, 2011 · N704SA · Boeing 7472B5F · Engine Mount Section
  > CRACKS FOUND ON NR 2 PYLON REAR ENGINE MOUNT UPPER BULKHEAD INBD AND OTBD FRAME HORIZ FLANGE. EACH CRACK APPROX 0.500" IN LENGTH. FINDING DISCOVERED DURING 'C1 & C2' CHECK.
- [SDR Q2SA2011F00081](https://openairdocs.org/sdr/Q2SA2011F00081.md): Valve · malfunctioned · May 11, 2011 · N704SA · Boeing 7472B5F · Aircraft Fuel Distribution System
  > WITH NR 4 CROSS FEED VALVE INDICATING "OPEN", NR 4 TANK (QTY) WENT DOWN AS IF CROSSFEED VALVE WAS CLOSED. NR 4 TANK BOOST PUMP LOW PRESSURE LIGHTS DID NOT FLASH, ENGINE NR 4 FLAMED-OUT. DESCENDED TO FL 300 AND RECYCLED NR 4 CROSSFEED VALVE, ALL ENGINE INDICA
- [SDR Q2SA708003](https://openairdocs.org/sdr/Q2SA708003.md): Hydraulic Line · ruptured · Aug 25, 2010 · N708SA · Boeing 7472B5F · Hydraulic System, Main
  > SHORTLY AFTER TAKEOFF THE CREW CALLED IN TO NOTIFY, HAD LEFT BODY GEAR PRIMARY/ALT LIGHT ON PER QRH AND ARE RETURNING TO ORD, 110 THOUSAND POUNDS OF FUEL WAS DUMPED AS A PRECAUTION BEFORE LANDING. DURING GROUND INSPECTION, MAINTENANCE WAS UNABLE TO IDENTIFY A
- [SDR Q2SA704002](https://openairdocs.org/sdr/Q2SA704002.md): Unknown · malfunctioned · Apr 14, 2010 · N704SA · Boeing 7472B5F · Pneumatic Distribution System
  > AT CRUISE, NUMBER 4 ENGINE WOULD NOT ACCELERATE; ACCOMPLISHED QRH PROCEDURE: ABNORMAL ENGINE RESPONSE TO THROTTLE SETTING. ACCOMPLISHED PNEUMATIC MANIFOLD INSPECTION OF NUMBER 4 ENGINE. ALL CHECKS NORMAL PER AMM 36-11-01. ITEM TRANSFERRED TO DI 21818 PER M
- [SDR 2010FA0000437](https://openairdocs.org/sdr/2010FA0000437.md): Skin · cracked · Apr 6, 2010 · N708SA · Boeing 7472B5F · Nacelle/Pylon, Plate/Skin
  > NR 3 ENG PYLON AFT LWR SPAR FIREWALL SKIN 1.5 INCH CRACK.
- [SDR 2010FA0000436](https://openairdocs.org/sdr/2010FA0000436.md): Skin · cracked · Apr 6, 2010 · N708SA · Boeing 7472B5F · Nacelle/Pylon, Plate/Skin
  > NR 3 ENG LT PYLON ACCESS PANEL CRACKED.
- [SDR 2010FA0000435](https://openairdocs.org/sdr/2010FA0000435.md): Door · cracked · Apr 6, 2010 · N708SA · Boeing 7472B5F · Nacelle/Pylon, Main Frame
  > NR 2 PYLON LT SIDE PRESSURE RELIEF DOOR CRACK (0.35 INCH).
- [SDR 2010FA0000438](https://openairdocs.org/sdr/2010FA0000438.md): Skin · dented · Apr 5, 2010 · N708SA · Boeing 7472B5F · Auxiliary Power Unit (APU) Doors
  > APU LT ACCESS DOOR SKIN DENT. INSTALL EXTERNAL REPAIR DOUBLER.
- [SDR 2010FA0000434](https://openairdocs.org/sdr/2010FA0000434.md): Skin · cracked · Apr 5, 2010 · N708SA · Boeing 7472B5F · Nacelle/Pylon, Plate/Skin
  > NR 3 ENG LT SIDE COWL SKIN CRACK. INSTALL EXTERNAL REPAIR DOUBLER.
- [SDR 2010FA0000433](https://openairdocs.org/sdr/2010FA0000433.md): Stiffener · cracked · Apr 5, 2010 · N708SA · Boeing 7472B5F · Nacelle/Pylon Miscellaneous Structure
  > CRACK WAS FOUND ON THE STIFFENER OF THE NR 3 PYLON. INSTALLATION SPLICE REPAIR ANGLES.
- [SDR 2010FA0000432](https://openairdocs.org/sdr/2010FA0000432.md): Skin · cracked · Apr 5, 2010 · N708SA · Boeing 7472B5F · Nacelle/Pylon, Plate/Skin
  > NR 4 PYLON AFT FAIRING DOOR LT SIDE CRACKED. BONDING EXTERNAL REPAIR DOUBLER.
- [SDR 2010FA0000431](https://openairdocs.org/sdr/2010FA0000431.md): Longeron · cracked · Apr 5, 2010 · N708SA · Boeing 7472B5F · Nacelle/Pylon, Longeron/Stringer
  > NR 3 ENG LT SIDE COWL UPPER LONGERON CRACK. INSTALL REPAIR DOUBLER.
- [SDR 2010F00082](https://openairdocs.org/sdr/2010F00082.md): Frame · cracked · Jan 14, 2010 · N704SA · Boeing 7472B5F · Fuselage Main, Frame
  > (KADY) CRACK AT FLANGE OF INNER CHORD OF BS 2598 BULKHEAD. MAJOR REPAIR ACCOMPLISHED BY TRIM OUT THE CRACKED CHORD AND INSTALL REPAIR PART INCLUDING SPLICE ANGLE.
- [SDR 2010F00079](https://openairdocs.org/sdr/2010F00079.md): Skin · cracked · Jan 13, 2010 · N704SA · Boeing 7472B5F · Nacelle/Pylon, Plate/Skin
  > (KADY) CRACK WAS FOUND ON THE SKIN OF THE NR 3 ENGINE RT SIDE COWL AT NAC STA 225.95.
- [SDR 2010FA0000360](https://openairdocs.org/sdr/2010FA0000360.md): Skin · worn · Aug 8, 2008 · N708SA · Boeing 7472B5F · Nacelle/Pylon, Plate/Skin
  > (KADY) WEAR DAMAGE WAS FOUND ON THE CAP SKIN OF THE NR 4 PYLON AT NAC STA 210.00-221.90 NAC WL 187.63-190.68.
- [SDR 2010FA0000359](https://openairdocs.org/sdr/2010FA0000359.md): Skin · worn · Aug 8, 2008 · N708SA · Boeing 7472B5F · Nacelle/Pylon, Plate/Skin
  > (KADY) WEAR DAMAGE WAS FOUND ON THE CAP SKIN OF THE NR 1 PYLON AT NAC STA 210.00-221.90 WL 187.63-190.60.
- [SDR 2010FA0000358](https://openairdocs.org/sdr/2010FA0000358.md): Frame · cracked · Aug 5, 2008 · N708SA · Boeing 7472B5F · Fuselage Main, Frame
  > (KADY) A CRACK WAS FOUND ON THE FRAME AT STA 1680, S13R-S14R.
- [SDR 2010FA0000357](https://openairdocs.org/sdr/2010FA0000357.md): Floorbeam · damaged · Aug 5, 2008 · N708SA · Boeing 7472B5F · Fuselage Main, Floor Beam
  > (KADY) AN ELONGATED FASTENER HOLE WAS FOUND ON THE UPPER DECK FLOORBEAM UPPER CHORD AT STA 380, LBL 22/12.
- [SDR 2010FA0000333](https://openairdocs.org/sdr/2010FA0000333.md): Cowling · delaminated · Jul 17, 2008 · N704SA · Boeing 7472B5F · Engine Cowling System
  > (KADY) DELAMINATION ON THE NR 2 ENG NOSE COWL. MINOR REPAIR ACCOMPLISHED BY FABRICATE REPAIR DOUBLER, STRAP AND CURE AFTER BOND.
- [SDR 2010FA0000332](https://openairdocs.org/sdr/2010FA0000332.md): Seat Track · worn · Jul 14, 2008 · N704SA · Boeing 7472B5F · Fuselage, Seat/Cargo Attach Fittings
  > (KADY) ENLARGE THE MAIN DECK SEAT TRACK PIN HOLE AT SEC 44 AND 46. MAJOR REPAIR ACCOMPLISHED BY OVERSIZE REAM AND INSTALL FREEZE PLUG BUSH.
- [SDR 2010FA0000331](https://openairdocs.org/sdr/2010FA0000331.md): Seat Track · corroded · Jul 12, 2008 · N704SA · Boeing 7472B5F · Fuselage, Seat/Cargo Attach Fittings
  > (KADY) CORROSION AT SEAT TRACK BS 1500, RBL 98.58. MAJOR REPAIR ACCOMPLISHED BY BLEND OUT OF CORROSION AND FABRICATE AND INSTALL A REPAIR STRAP.
- [SDR 2010FA0000356](https://openairdocs.org/sdr/2010FA0000356.md): Seat Track · worn · Jul 9, 2008 · N704SA · Boeing 7472B5F · Fuselage, Seat/Cargo Attach Fittings
  > (KADY) ENLARGE THE MAIN DECK SEAT TRACK PIN HOLE AT SEC 42. MAJOR REPAIR ACCOMPLISHED BY OVERSIZE REAM AND INSTALL FREEZE PLUG BUSH.
- [SDR 2010F00085](https://openairdocs.org/sdr/2010F00085.md): Skin · damaged · Jul 4, 2008 · N704SA · Boeing 7472B5F · Nacelle/Pylon, Plate/Skin
  > (KADY) AN ENLARGED HOLE WAS FUND ON THE OTBD SKIN AT NAC STA 286.50.
- [SDR 2010FA0000355](https://openairdocs.org/sdr/2010FA0000355.md): Skin · corroded · Jul 1, 2008 · N704SA · Boeing 7472B5F · Nacelle/Pylon, Plate/Skin
  > (KADY) CORROSION AT NR 1 PYLON OTBD CAP SKIN. MINOR REPAIR ACCOMPLISHED BY BLEND OUT THE CORROSION AND APPLY FINISH TREATMENT.
- [SDR 2010F00083](https://openairdocs.org/sdr/2010F00083.md): Skin · corroded · Jul 1, 2008 · N704SA · Boeing 7472B5F · Nacelle/Pylon, Plate/Skin
  > (KADY) CORROSION AT NR 4 PYLON OTBD CAP SKIN. MINOR REPAIR ACCOMPLISHED BY BLEND OUT THE CORROSION AND APPLY FINISH TREATMENT.
- [SDR 2010F00084](https://openairdocs.org/sdr/2010F00084.md): Skin · cracked · Jun 30, 2008 · N704SA · Boeing 7472B5F · Nacelle/Pylon, Plate/Skin
  > (KADY) CRACK WAS FOUND NR 3 PYLON INBD SKIN.
- [SDR 2010FA0000354](https://openairdocs.org/sdr/2010FA0000354.md): Floorbeam · cracked · Jun 24, 2008 · N704SA · Boeing 7472B5F · Fuselage Main, Floor Beam
  > (KADY) CRACK AT FLOORBEAM WEB AT UPPER DECK BS 340, 400, AND 500. MAJOR REPAIR ACCOMPLISHED BY TRIM OUT THE CRACKED FLOORBEAM AND INSTALL REPAIR FILLER AND REPAIR DOUBLER.
- [SDR 2010FA0000351](https://openairdocs.org/sdr/2010FA0000351.md): Skin · worn · Jun 10, 2008 · N704SA · Boeing 7472B5F · Fuselage Main, Plate/Skin
  > (KADY) WORN AT OUTER SKIN AND FLANGE OF FRAME. MINOR REPAIR ACCOMPLISHED BY TRIM OF DAMAGED SKIN AND FRAME AND INSTALL FILER AND REPAIR ANGLE AND REPAIR DOUBLER.
- [SDR 2010FA0000353](https://openairdocs.org/sdr/2010FA0000353.md): Skin · worn · Jun 9, 2008 · N704SA · Boeing 7472B5F · Engine Cowling System
  > (KADY) WORN AT OUTER SKIN AND STIFFENER OF NR 4 LT SIDE COWL. MONOR REPAIR ACCOMPLISHED BY TRIM OUT THE DAMAGED SKIN AND STIFFENER AND INSTALL REPAIR DOUBLER.
- [SDR 2010FA0000352](https://openairdocs.org/sdr/2010FA0000352.md): Skin · punctured · Jun 9, 2008 · N704SA · Boeing 7472B5F · Engine Cowling System
  > (KADY) PUNCTURE OF NR 4 ENGINE LT SIDE FAN COWL INNER SKIN. MINOR REPAIR ACCOMPLISHED BY TRIM OUT THE DAMAGED SKIN AND INSTALL FILLER AND REPAIR DOUBLER.
- [SDR 2010FA0000350](https://openairdocs.org/sdr/2010FA0000350.md): Fairing · cracked · May 23, 2008 · N704SA · Boeing 7472B5F · Nacelle/Pylon, Main Frame
  > (KADY) NR 1, 3 AND 4 ENG SLOT SEAL FAIRING FASTENER HOLES WORN. MINOR REPAIR ACCOMPLISHED BY OVERSIZE, THE AFFECTED HOLES AND INSTALL NEW GROMMET ASSY.
- [SDR Q2SA708001](https://openairdocs.org/sdr/Q2SA708001.md): Fuel Control · malfunctioned · Apr 7, 2008 · N708SA · Boeing 7472B5F · Fuel Control/Reciprocating Engines
  > ATB AT ANC DUE TO ENGINE PROBLEM. NR 4 ENGINE STALLED DURING CLIMB AT 33,600 FT. REDUCED THRUST TO IDLE. IDLE PARAMETERS N1 37 PERCENT, N2 61 PERCENT, EPR ERRATIC, EGT 483, FF 800. ALL BLEEDS ON, 2 AIR CONDITIONING PACKS ON. 2 AIR CONDITIONING PACKS ON. 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 aircraft_model_key = '7472B5F'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/model/boeing-747-2b5f/reports

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.