# Service difficulty reports: Boeing 747-227B

A list on [Boeing 747-227B](https://openairdocs.org/model/boeing-747-227b.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 2 · 79 reports

- [SDR 0301856634](https://openairdocs.org/sdr/0301856634.md): Switch · burned · Sep 27, 2003 · N634US · Boeing 747227B · Buffet/Galleys
  > DURING FLIGHT, THE CIRCUIT BREAKER FOR THE NR 1 HOTPLATE IN THE AFT GALLEY POPPED AFTER SPARKS, ALONG WITH A STRONG ELECTRICAL SMOKE ODOR EMITTING FROM THE HOTPLATE. CREW PULLED ALL CIRCUIT BREAKERS FOR THE NR 1 COFFEEMAKER AND THE AIRCRAFT CONTINUED TO DESTIN
- [SDR 0301846634](https://openairdocs.org/sdr/0301846634.md): Coffeemaker · burned · Sep 25, 2003 · N634US · Boeing 747227B · Buffet/Galleys
  > DURING FLIGHT, AN ELECTRICAL BURNING ODOR EMITTED FROM THE NBR 2 AFT COFFEEMAKER. PULLED CIRCUIT BREAKER AND AIRCRAFT CONTINUED TO DESTINATION AND LANDED WITHOUT INCIDENT. REPLACED COFFEEMAKER. OPERATIONAL CHECK GOOD.
- [SDR 0203786635](https://openairdocs.org/sdr/0203786635.md): Battery · defective · Nov 8, 2002 · N635US · Boeing 747227B · Detection System
  > During cruise an electrical odor emitted from in area of the P6 panel. After a short time the odor dissipated. Aircraft continued to destination and landed without incident. Visually inspected are with no defects found.Probable source of odor was the main batt
- [SDR 0202936633](https://openairdocs.org/sdr/0202936633.md): Controller · malfunctioned · Sep 9, 2002 · N633US · Boeing 747227B · Buffet/Galleys
  > DURING FLIGHT, AN ELECTRICAL FUME EMITTED IN THE UPPER DECK AND FLIGHT DECK. PULLED UPPER DECK GALLEY CIRCUIT BREAKERS AND SMELL DISSIPATED. AIRCRAFT CONTINUED TO DESTINATION AND LANDED WITHOUT INCIDENT. REPLACED THE LEFT UPPER DECK OVEN CONTROLLER. OPERAT
- [SDR 0201995635](https://openairdocs.org/sdr/0201995635.md): Battery Pack · discharged · Jun 20, 2002 · N635US · Boeing 747227B · Emergency Lighting
  > DURING LINE CHECK, FOUND FIRST CLASS FLOOR PATH EMERGENCY LIGHTS INOPERATIVE. REPLACED POWER SUPPLY AND BATTERY PACK. OPERATIONAL CHECK GOOD.
- [SDR 0201976635](https://openairdocs.org/sdr/0201976635.md): Battery Pack · discharged · Jun 15, 2002 · N635US · Boeing 747227B · Emergency Lighting
  > DURING LINE CHECK, FOUND ZONE-A FLOOR PATH EMERGENCY LIGHTS INOPERATIVE. REPLACED POWER SUPPLY AND BATTERY PACK. OPERATIONAL CHECK GOOD.
- [SDR 0201806635](https://openairdocs.org/sdr/0201806635.md): Wire · damaged · May 31, 2002 · N635US · Boeing 747227B · Light System Wiring
  > DURING LINE CHECK, FOUND ZONE -A- LEFT FLOOR PATH EMERGENCY LIGHTS INOPERATIVE. REPAIRED WIRE AND REPLACED THE POWER SUPPLY BOX. OPERATIONAL CHECK GOOD.
- [SDR 0102966634](https://openairdocs.org/sdr/0102966634.md): Duct · leaking · Aug 14, 2001 · N634US · Boeing 747227B · Air Distribution System
  > DURING CLIMB, (AMS) WATER LEAKING IN THE AREA OF SEAT 10J AND AN ELECTRICAL SMELL EMITTED AROUND DOOR 3L. TURNED OFF GALLEY POWER AND SMELL DISSIPATED. AIRCRAFT RETURNED TO AMS AND LANDED WITHOUT INCIDENT. REPLACED AIR CONDITIONING DUCT ABOVE SEAT 10J AND O
- [SDR 0101586635](https://openairdocs.org/sdr/0101586635.md): Battery · discharged · May 9, 2001 · N635US · Boeing 747227B · Emergency Lighting
  > DURING LINE CHECK, FOUND ZONE-E EMERGENCY FLOOR ESCAPE PATH LIGHTS INOPERATIVE. REPLACED EMERGENCY LIGHT BATTERY. OPERATIONAL CHECK GOOD.
- [SDR 0101686635](https://openairdocs.org/sdr/0101686635.md): Power Supply · inoperative · May 4, 2001 · N635US · Boeing 747227B · Emergency Lighting
  > DURING LINE CHECK, FOUND ZONE-E EMERGENCY FLOOR PATH LIGHTS INOPERATIVE. REPLACED THE POWER SUPPLY. OPERATIONAL CHECK GOOD.
- [SDR 0101736635](https://openairdocs.org/sdr/0101736635.md): Battery Pack · inoperative · Apr 27, 2001 · N635US · Boeing 747227B · Emergency Lighting
  > DURING LINE CHECK, FOUND E-ZONE EMERGENCY ESCAPE PATH LIGHTING INOPERATIVE. REPLACED BATTERY PACK. OPERATIONAL CHECK NORMAL.
- [SDR 0101426635](https://openairdocs.org/sdr/0101426635.md): Battery Pack · discharged · Apr 19, 2001 · N635US · Boeing 747227B · Emergency Lighting
  > DURING LINE CHECK, MAINTENANCE FOUND E-ZONE EMERGENCY ESCAPE PATH LIGHTING INOPERATIVE. REPLACED THE BATTERY PACK. OPERATIONAL CHECK NORMAL.
- [SDR 0101406635](https://openairdocs.org/sdr/0101406635.md): Battery · discharged · Apr 13, 2001 · N635US · Boeing 747227B · Emergency Lighting
  > DURING LINE CHECK, FOUND ZONE-E EMERGENCY ESCAPE PATH FLOOR LIGHTING INOPERATIVE. MAINTENANCE REPLACED THE EMERGENCY LIGHT BATTERY. OPERATIONAL CHECK NORMAL.
- [SDR 0101356633](https://openairdocs.org/sdr/0101356633.md): Smoke · detected · Apr 10, 2001 · N633US · Boeing 747227B · Buffet/Galleys
  > DURING CRUISE, NOTICED WHITE SMOKE AND ELECTRICAL SMELL COMING FROM THE NR 2 COFFEEMAKER IN NR 1 GALLEY. SMOKE AND SMELL DIMINISHED AFTER PULLING THE GALLEY CIRCUIT BREAKERS. MAINTENANCE COLLARED THE CIRCUIT BREAKER. LOG PAGE CURRENTLY DEFERRED FOR ADDITION
- [SDR 0100976633](https://openairdocs.org/sdr/0100976633.md): Fire Warning · false indication · Mar 20, 2001 · N633US · Boeing 747227B · Fire Detection
  > DURING TAKEOFF, THE NR 3 ENGINE FIRE DETECTION LIGHT FLICKERED ON AND OFF. AIRCRAFT ABORTED TAKEOFF AND RETURNED TO THE GATE WITHOUT INCIDENT. INSPECTED AND TESTED THE NR 3 ENGINE FIRE DETECTION SYSTEM WITH NO FAULTS FOUND.
- [SDR 0101026634](https://openairdocs.org/sdr/0101026634.md): Fuel Control · failed · Mar 18, 2001 · N634US · Boeing 747227B · Fuel Control/Turbine Engines
  > WHILE IN CRUISE, THE NR 4 ENGINE FLAMED OUT. ALL ENGINE PARAMETERS ROLLED BACK WITH FUEL FLOW INDICATING ZERO. AFTER DESCENDING TO FL280, TWO RESTART ATTEMPTS WERE MADE, BOTH UNSUCCESSFUL. THE FLIGHT DIVERTED TO ANC AND LANDED WITHOUT INCIDENT. MAINTENANCE
- [SDR 0100676634](https://openairdocs.org/sdr/0100676634.md): Battery Pack · discharged · Feb 27, 2001 · N634US · Boeing 747227B · Emergency Lighting
  > DURING LINE CHECK, MAINTENANCE FOUND C-ZONE EMERGENCY ESCAPE PATH LIGHTS INOPERATIVE. REPLACED BATTERY PACK. OPERATIONAL CHECK NORMAL.
- [SDR 0100326633](https://openairdocs.org/sdr/0100326633.md): Unknown · odor · Feb 2, 2001 · N633US · Boeing 747227B · Air Distribution System
  > DURING CRUISE, THERE WAS AN ELECTRICAL WIRE BURNING SMELL IN AFT LAVATORIES. MAINTENANCE THOROUGHLY EXAMINED LAV EQUIPMENT. NO EVIDENCE OF ODOR WAS FOUND. OPERATIONAL CHECK NORMAL.
- [SDR 0003546633](https://openairdocs.org/sdr/0003546633.md): Pump · failed · Sep 25, 2000 · N633US · Boeing 747227B · Hydraulic Pump (Electric/Engine), Main
  > DURING CLIMB AFTER LANDING GEAR RETRACTION, THE RED LANDING GEAR DOOR OPEN LIGHT REMAINED ILLUMINATED ACCOMPANIED BY VIBRATION. RECYCLED LANDING GEAR AND LIGHTS EXTINGUISHED AND AIRCRAFT CONTINUED TO DESTINATION WITHOUT FURTHER INCIDENT. REPLACED NR 4 ENGINE
- [SDR 0003616633](https://openairdocs.org/sdr/0003616633.md): Floorbeam · cracked · Sep 20, 2000 · N633US · Boeing 747227B · Fuselage Main, Floor Beam
  > FOUND CRACK ON FLOORBEAM LOWER CHORD AT BS 1900 RBL 108. REPAIRED PER EA 66-178826.
- [SDR 0002396634](https://openairdocs.org/sdr/0002396634.md): Duct · ruptured · Jul 5, 2000 · N634US · Boeing 747227B · Air Distribution System
  > DURING CLIMB, THE FLIGHT CREW HAD DIFFICULTY PRESSURIZING THE AIRCRAFT IN AUTO AND A BURNING SMELL EMITTED FROM ROW 24. CABIN PRESSURIZATION WAS CONTROLLED MANUALLY AND AIRCRAFT RETURNED TO HNL AND LANDED WITHOUT FURTHER INCIDENT. REPLACED ZONE 3 TRIM AIR DU
- [SDR 0002226633](https://openairdocs.org/sdr/0002226633.md): Wire · chafed · Jun 23, 2000 · N633US · Boeing 747227B · Fire Detection
  > DURING FLIGHT, THE NR 1 ENGINE FIRE DETECTION FAULT LIGHT ILLUMINATED. FOLLOWED COCKPIT OPERATING MANUAL PROCEDURES AND LIGHT BECAME INTERMITTENT. AIRCRAFT CONTINUED TO DESTINATION AND LANDED WITHOUT INCIDENT. SPLICED AND REPAIRED CHAFED WIRE AT LOW ELEMENT
- [SDR 0001516634](https://openairdocs.org/sdr/0001516634.md): Web · cracked · Apr 12, 2000 · N634US · Boeing 747227B · Fuselage Main, Frame
  > DURING M-CHECK, FOUND CRACKED FRAME WEB AT STRINGER CUTOUTS FOR STRINGERS 10 AND 11 AT BS 380. REPAIRED PER EA 66-175724.
- [SDR 0001526634](https://openairdocs.org/sdr/0001526634.md): Skin · cracked · Apr 6, 2000 · N634US · Boeing 747227B · Nacelle/Pylon, Plate/Skin
  > DURING M CHECK, FOUND CRACK IN 3 INCH LONG CRACK ON NR 4 PYLON SKIN INBOARD SIDE, FORWARD OF SLOT SEAL AT APPROX NAS STATION 173. REPAIRED PER EA66-175083.
- [SDR 0000926633](https://openairdocs.org/sdr/0000926633.md): Web · cracked · Feb 7, 2000 · N633US · Boeing 747227B · Fuselage Miscellaneous Structure
  > DURING M-CHECK, FOUND CRACK ON WEB AT STRINGER 25R BS 1265. ACCOMPLISHED INTERIM REPAIR PER EA 66-173177 REV A. ACCOMPLISH EA 66-173177 REV A SECTION II, REPAIR WITHIN EVERY 2000 CYCLES AFTER FEB 2000.
- [SDR 0000556633](https://openairdocs.org/sdr/0000556633.md): Frame · cracked · Feb 2, 2000 · N633US · Boeing 747227B · Fuselage Main, Frame
  > DURING M-CHECK, FOUND CRACK IN FRAME WEB IN FASTENER HOLE ''A''. REPAIRED PER EA66-173177.
- [SDR 9905276633](https://openairdocs.org/sdr/9905276633.md): Projector · failed · Dec 8, 1999 · N633US · Boeing 747227B · Entertainment System
  > EN ROUTE TO KIX, MOVIE PROJECTOR BR PRODUCED SMOKE AND SPARKS. POWER WAS TURNED OFF AND AIRCRAFT CONTINUED TO KIX AND LANDED WITHOUT INCIDENT. REPLACED PROJECTOR. OPERATIONAL CHECK GOOD.
- [SDR 9904876635](https://openairdocs.org/sdr/9904876635.md): Seat Track · corroded · Oct 22, 1999 · N635US · Boeing 747227B · Fuselage, Seat/Cargo Attach Fittings
  > DURING M-CHECK, FOUND CORROSION ON SEAT TRACK FLANGE FS 488 - 492, LBL 34. REPAIRED PER EA 66-171513.
- [SDR 9904846635](https://openairdocs.org/sdr/9904846635.md): Support · corroded · Oct 22, 1999 · N635US · Boeing 747227B · Fuselage Miscellaneous Structure
  > DURING M-CHECK, FOUND CORROSION ON MAIN DECK FLOOR SUPPORT FS 520 - 560, RBL 116. REPAIRED PER EA 66-171514.
- [SDR 9904866635](https://openairdocs.org/sdr/9904866635.md): Seat Track · deformed · Oct 15, 1999 · N635US · Boeing 747227B · Fuselage, Seat/Cargo Attach Fittings
  > DURING M-CHECK, FOUND 5 HOLES ELONGATED IN RIGHT FLANGE OF SEAT TRACK FS 1333 - 1349, LBL 75. REPAIRED PER EA 66-171508.
- [SDR 9904856635](https://openairdocs.org/sdr/9904856635.md): Floorbeam · corroded · Oct 15, 1999 · N635US · Boeing 747227B · Fuselage Main, Floor Beam
  > DURING M-CHECK, FOUND FLOORBEAM UPPER FLANGE CORRODED AT FS 1280 - 1304, RBL 34. REPAIRED PER EA 66-171511.
- [SDR 9904816635](https://openairdocs.org/sdr/9904816635.md): Frame · cracked · Oct 15, 1999 · N635US · Boeing 747227B · Fuselage Main, Frame
  > DURING M-CHECK, FOUND CRACK ON FASTENER HOLE A TO EDGE OF FRAME WEB. REPAIRED PER EA 66-171515.
- [SDR 9904826635](https://openairdocs.org/sdr/9904826635.md): Spar Web · cracked · Oct 8, 1999 · N635US · Boeing 747227B · Wing Spar
  > DURING M-CHECK, FOUND CRACK IN MID SPAR WEB INSIDE TANK. REPAIRED PER EA 66-168400.
- [SDR 9904836635](https://openairdocs.org/sdr/9904836635.md): Spar Web · corroded · Sep 28, 1999 · N635US · Boeing 747227B · Wing Spar
  > DURING M-CHECK, FOUND CORROSION ON FRONT SPAR LOWER CHORD. REPAIRED PER EA 66-167487.
- [SDR 9903196635](https://openairdocs.org/sdr/9903196635.md): Engine · flamed out · Aug 12, 1999 · N635US · Boeing 747227B · Engine (Turbine/Turboprop)
  > AFTER ENTERING MODERATE TURBULENCE WITH PRECIPITATION, THE AUTO THROTTLES DISCONNECTED AND THE CREW OBSERVED LOW EGT ON THE NR 3 ENGINE. THE ENGINE FLAMEOUT PROCEDURE WAS FOLLOWED AND THE FIRST RESTART ATTEMPT WAS SUCCESSFUL. ENGINE OPERATION FOR THE REMAIND
- [SDR 9902006634](https://openairdocs.org/sdr/9902006634.md): Power Supply · inoperative · Jun 7, 1999 · N634US · Boeing 747227B · Emergency Lighting
  > DURING LINE CHECK, FOUND C ZONE FLOOR PATH EMERGENCY LIGHTS INOPERATIVE. REPLACED POWER SUPPLY, OPERATIONAL CHECK GOOD.
- [SDR 9810296635](https://openairdocs.org/sdr/9810296635.md): Channel · cracked · Sep 22, 1998 · N635US · Boeing 747227B · Nacelle/Pylon Structure
  > DURING PERIODIC CHECK, FOUND CRACK IN STIFFENER FLANGE ON NR 4 PYLON BL 0, FS 157. REPAIRED PER EA 66-160980, REV A.
- [SDR 9809066635](https://openairdocs.org/sdr/9809066635.md): Control Cable · failed · May 7, 1998 · N635US · Boeing 747227B · Power Lever
  > UPON APPLICATION OF TAKEOFF POWER, THE CREW NOTICED NO RESPONSE FROM THE NR 3 ENGINE WITH POWER LEVER MOVEMENT. TAKEOFF WAS ABORTED AND THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE REPLACED THE STRUT AREA PUSH/PULL CABLE AND CONTROL BOX. ENGINE RUN WAS NO
- [SDR 9803706635](https://openairdocs.org/sdr/9803706635.md): Engine · malfunctioned · Mar 4, 1998 · N635US · Boeing 747227B · Engine (Turbine/Turboprop)
  > AFTER A NORMAL START OF THE NR 2 ENGINE AND WHEN STARTING THE NR 3 ENGINE, APPROXIMATELY 2 MINUTES LATER, THE NR 2 ENGINE EGT ROSE TO 550C WITH BOTH N1 AND N2 DECREASING. THE ENGINE WAS SHUT DOWN. GROUND PERSONNEL REPORTED SOME TORCHING VISIBLE FROM THE NR 2
- [SDR 9803126635](https://openairdocs.org/sdr/9803126635.md): Csd · failed · Feb 19, 1998 · N635US · Boeing 747227B · Alternator-Generator Drive
  > DURING CRUISE, THE NR 1 ENGINE CONSTANT SPEED DRIVE OIL PRESSURE LIGHT ILLUMINATED. SHUT DOWN NR 1 ENGINE DUE TO AN UNSUCCESSFUL ATTEMPT TO DISCONNECT THE CONSTANT SPEED DRIVE. AIRCRAFT DIVERTED TO MNL AND LANDED WITHOUT INCIDENT. REPLACED THE NR 1 ENGINE C
- [SDR 9721726635](https://openairdocs.org/sdr/9721726635.md): Switch · failed · Nov 17, 1997 · N635US · Boeing 747227B · Landing Gear Steering System
  > DURING TAKEOFF, THE BODY GEAR STEERING LIGHT REMAINED ILLUMINATED. AIRCRAFT ABORTED TAKEOFF AND RETURNED TO THE GATE. REPLACED THE BODY GEAR STEERING PRIMARY AND ALTERNATE UNLOCK SWITCHES. OPERATIONAL CHECK GOOD. SPECIFIC PART CAUSING EVENT TO BE DETERMINED
- [SDR 9720766633](https://openairdocs.org/sdr/9720766633.md): Check Valves · failed · Nov 4, 1997 · N633US · Boeing 747227B · Aircraft Fuel Distribution System
  > DURING CRUISE, FUEL STARTED VENTING FROM THE RIGHT WING TIP. AIRCRAFT RETURNED TO NRT AND LANDED WITHOUT INCIDENT. CORRECTED SURGE TANK VENT LINE LEAK AT OUTBOARD NACELLE RIB COUPLING AND REPLACED THE NBR 3 FORWARD AND AFT MAIN BOOST PUMP DISCHARGE CHECK VALVE
- [SDR 9719066633](https://openairdocs.org/sdr/9719066633.md): Drain Fitting · loose · Oct 12, 1997 · N633US · Boeing 747227B · Aircraft Fuel Distribution System
  > DURING CLIMB, FUEL STARTED VENTING FROM THE RIGHT WING TIP. CLOSED CROSSFEED VALVES AND THE VENTING STOPPED. AIRCRAFT DIVERTED TO SEA AND LANDED WITHOUT INCIDENT. SECURED SURGE TANK DRAIN LINE FITTING AT NR 4 PYLON RIB AND REPLACED NR 3 FUEL BOOST PUMP DUE
- [SDR 9714856634](https://openairdocs.org/sdr/9714856634.md): Seal · leaking · Aug 1, 1997 · N634US · Boeing 747227B · Pneumatic Distribution System
  > DURING CLIMB, THE LEFT WING LEADING EDGE OVERHEAT LIGHT ILLUMINATED. AIRCRAFT DIVERTED TO MSP AND LANDED WITHOUT INCIDENT. REPLACED 'Y' DUCT SEALS IN NR 2 PYLON.
- [SDR 9715316634](https://openairdocs.org/sdr/9715316634.md): Frame · corroded · Jul 29, 1997 · N634US · Boeing 747227B · Fuselage Main, Frame
  > DURING PERIODIC CHECK, FOUND CORROSION AT THE UPPER 'T' CHORD (P/N 65B04333-39) OF FS 1920 FRAME. REPAIRED PER EA 66-151491.
- [SDR 9711816634](https://openairdocs.org/sdr/9711816634.md): Brakes · dragging · Jun 17, 1997 · N634US · Boeing 747227B · Landing Gear Brake System
  > DURING TAKEOFF, THE BRAKES APPEARED TO BE DRAGGING. ABORTED TAKEOFF AND RETURNED TO THE GATE. INSPECTED BRAKES AND TIRES, ALL CHECKS NORMAL.
- [SDR 9707706634](https://openairdocs.org/sdr/9707706634.md): Epr Indicator · malfunctioned · Apr 17, 1997 · N634US · Boeing 747227B · Engine Pressure Ratio (EPR)
  > DURING TAKEOFF, THE NR 2 ENGINE EPR INDICATION LOW. ABORTED TAKEOFF AT 80 KNOTS. MAINTENANCE REPLACED EPR INDICATOR.
- [SDR 9703106635](https://openairdocs.org/sdr/9703106635.md): Bleed Valve · failed · Feb 13, 1997 · N635US · Boeing 747227B · Compressor Bleed Valve
  > DURING TAKEOFF, THE NR 2 ENGINE DID NOT DEVELOP TAKEOFF POWER. ABORTED TAKEOFF AND RETURNED TO THE GATE. REPLACED THE NR 2 ENGINE START VALVE, HIGH STAGE BLEED VALVE, AND HIGH STAGE CONTROL, OPERATIONAL CHECK GOOD.
- [SDR 9703096635](https://openairdocs.org/sdr/9703096635.md): Bleed Valve · failed · Feb 13, 1997 · N635US · Boeing 747227B · Compressor Bleed Valve
  > DURING TAKEOFF, THE NR 2 ENGINE DID NOT DEVELOP TAKEOFF POWER. ABORTED TAKEOFF AND RETURNED TO THE GATE. REPLACED THE NR 2 ENGINE HIGH STAGE BLEED VALVE AND HIGH STAGE CONTROL, OPERATIONAL CHECK GOOD.
- [SDR 9702826634](https://openairdocs.org/sdr/9702826634.md): Tr Switch · lack of lube · Feb 10, 1997 · N634US · Boeing 747227B · Engine Thrust Reverser
  > DURING CRUISE, THE NR 2 REVERSER UNLOCK LIGHT ILLUMINATED. AIRCRAFT DIVERTED TO FAR AND LANDED WITHOUT INCIDENT. LUBED AND ADJUSTED THRUST REVERSER SWITCH, OPERATIONAL CHECK GOOD.

Next page: https://openairdocs.org/model/boeing-747-227b/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 = '747227B'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/model/boeing-747-227b/reports

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