# N478US: 2004 Boeing 737-7H4

- Status: Valid registration
- Airframe: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (registry code 1384404, 143 seats)
- Engine: [CFM International CFM56 series](https://openairdocs.org/engine/cfm-international-cfm56-series) (registry code 13802)
- Data sheets: [TCDS A16WE](https://openairdocs.org/tcds/A16WE) (The Boeing Company) (OpenAirDocs)
- Serial number: 30677
- Year built: 2004
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: June 14, 2004
- Certificate issued: March 9, 2026
- Expires: March 31, 2033
- Mode S code: A5E0A5
- Registered owner: [US Department Of Homeland Security](https://openairdocs.org/faa-owner/US%20DEPARTMENT%20OF%20HOMELAND%20SECURITY)
- Location: [Arlington, VA](https://openairdocs.org/faa-place/VA/Arlington)
- Owner type: Government
- Owner's area on the map: 38.8944° N, 77.0734° W: Placed by OpenAirDocs at the center of ZIP code 22209, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=478US
- Page: https://openairdocs.org/aircraft/N478US

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. The registry lists only the engine series, so ADs for every CFM International CFM56 model are included.

## ADs that may apply (OpenAirDocs): 55 in force

### Matched by airframe (Boeing 737-7H4)

None in force.

### Matched by engine (CFM International CFM56 series)

- [AD 2023-05-05](https://openairdocs.org/ad/2023-05-05): Turbine Engine Compressor Section · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/3 and 98 more. Effective May 10, 2023
- [AD 2022-02-03](https://openairdocs.org/ad/2022-02-03): Turbine Engine Accessory Drive · CFM International CFM56-3, CFM56-3B, CFM56-3C and 34 more. Effective Mar 22, 2022
- [AD 2021-16-08](https://openairdocs.org/ad/2021-16-08): Turbine Section · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/P and 55 more. Effective Sep 28, 2021
- [AD 2018-26-01](https://openairdocs.org/ad/2018-26-01): Turbine Engine Compressor Section · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective Jan 10, 2019
- [AD 2018-09-51](https://openairdocs.org/ad/2018-09-51): Engine · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective Jun 7, 2018
- [AD 2017-14-08](https://openairdocs.org/ad/2017-14-08): Turbine Engine Compressor Section · CFM International CFM56-3, CFM56-3B and CFM56-3C. Effective Aug 18, 2017
- [AD 2017-05-09](https://openairdocs.org/ad/2017-05-09): Accessory Gearboxes · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/3 and 33 more. Effective Apr 13, 2017
- [AD 2016-14-10](https://openairdocs.org/ad/2016-14-10): High-pressure turbine (HPT) disks · CFM International CFM56-3, CFM56-3B and CFM56-3C with STC SE00034EN. Effective Aug 9, 2016
- [AD 2016-02-04](https://openairdocs.org/ad/2016-02-04): Turbine rear frames (TRFs) · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/3 and 33 more. Effective Mar 1, 2016
- [AD 2015-18-04](https://openairdocs.org/ad/2015-18-04): 73-tooth gearshaft located in the engine accessory gearbox (AGB) · CFM International CFM56-3, CFM56-7B20, CFM56-7B20/2 and 47 more. Effective Oct 20, 2015
- [AD 2015-04-02](https://openairdocs.org/ad/2015-04-02): Dual engine thrust instability event · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective Mar 31, 2015
- [AD 2013-14-06](https://openairdocs.org/ad/2013-14-06): Hydro-mechanical unit (HMU) fuel control · CFM International CFM56-5, CFM56-5B1, CFM56-5B1/2P and 34 more. Effective Sep 3, 2013
- [AD 2012-02-03](https://openairdocs.org/ad/2012-02-03): Engine · CFM International CFM56-5B1/3, CFM56-5B2/3, CFM56-5B3/3 and 8 more. Effective Mar 15, 2012
- [AD 2010-13-09](https://openairdocs.org/ad/2010-13-09): Stage 3 low-pressure turbine (LPT) · CFM International CFM56-5, CFM56-5-A1/F, CFM56-5A4 and 88 more. Effective Jul 26, 2010
- [AD 2010-12-03](https://openairdocs.org/ad/2010-12-03): Fan blades · CFM International CFM56-3 and CFM56-3B. Effective Jul 13, 2010
- [AD 2010-09-14](https://openairdocs.org/ad/2010-09-14): Exhaust gas temperature (EGT) · CFM International CFM56-5B1/2P, CFM56-5B1/P, CFM56-5B2/2P and 16 more. Effective Jun 8, 2010
- [AD 2010-01-05](https://openairdocs.org/ad/2010-01-05): LP turbine rear frames · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 25 more. Effective Feb 18, 2010
- [AD 2009-18-01](https://openairdocs.org/ad/2009-18-01): LP turbine rear frames · CFM International CFM56-5B1/3, CFM56-5B1/P, CFM56-5B2/3 and 19 more. Effective Oct 1, 2009
- [AD 2009-11-02](https://openairdocs.org/ad/2009-11-02): HPC 4-9 spools · CFM International CFM56-2, CFM56-2A, CFM56-2B and 109 more. Effective Jun 23, 2009
- [AD 2008-03-09](https://openairdocs.org/ad/2008-03-09): Low pressure turbine rear frames (TRFs) · CFM International CFM56-7B18, CFM56-7B20, CFM56-7B22 and 10 more. Effective Mar 10, 2008
- [AD 2007-24-04](https://openairdocs.org/ad/2007-24-04): Low pressure turbine (LPT) · CFM International CFM56-5C4/1. Effective Dec 6, 2007
- [AD 2007-03-15](https://openairdocs.org/ad/2007-03-15): Exhaust gas temperature (EGT) harness · CFM International CFM56-5, CFM56-5B1, CFM56-5B1/2P and 34 more. Effective Mar 19, 2007
- [AD 2006-26-01](https://openairdocs.org/ad/2006-26-01): Fuel filters · CFM International CFM56-2, CFM56-2A, CFM56-2B and 93 more. Effective Jan 3, 2007
- [AD 2005-10-05](https://openairdocs.org/ad/2005-10-05): Air turbine starters · CFM International CFM56-5, CFM56-5B1, CFM56-5B1/2P and 50 more. Effective Jun 14, 2005
- [AD 97-09-02 R3](https://openairdocs.org/ad/97-09-02-R3): High pressure turbine rotor (HPTR) front shafts · CFM International CFM56-5C2, CFM56-5C3/G and CFM56-5C4. Effective Oct 14, 2004
- [AD 2004-10-13](https://openairdocs.org/ad/2004-10-13): Service main fuel pumps · CFM International CFM56-3, CFM56-5, CFM56-5-A1/F and 4 more. Effective Jun 24, 2004
- [AD 2002-22-12](https://openairdocs.org/ad/2002-22-12): Titeflex hoses · BAE Systems ATP, Avro 146-RJ100A, Avro 146-RJ70A and 122 more. Effective Dec 13, 2002
- [AD 2002-16-18](https://openairdocs.org/ad/2002-16-18): Low pressure turbine (LPT) nozzle segments · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/P and 33 more. Effective Sep 18, 2002
- [AD 2002-13-03](https://openairdocs.org/ad/2002-13-03): Turbofan Engines · CFM International CFM56-2, CFM56-2A, CFM56-2B and 55 more. Effective Aug 1, 2002
- [AD 2002-02-13](https://openairdocs.org/ad/2002-02-13): Magnetic Drain Plug · CFM International CFM56-5, CFM56-5-A1/F, CFM56-5A4 and 33 more. Effective Mar 21, 2002
- [AD 2001-11-05](https://openairdocs.org/ad/2001-11-05): No. 4 Bearings · CFM International CFM56-2, CFM56-2B, CFM56-3 and 45 more. Effective Jun 11, 2001
- [AD 2001-09-17](https://openairdocs.org/ad/2001-09-17): Fuel Manifold and CJ9L Harness · CFM International CFM56-5C2, CFM56-5C2/4, CFM56-5C2/F and 13 more. Effective May 14, 2001
- [AD 2001-04-06](https://openairdocs.org/ad/2001-04-06): Fan Disk · CFM International CFM56-3, CFM56-3B and CFM56-3C. Effective Apr 4, 2001
- [AD 2001-02-12](https://openairdocs.org/ad/2001-02-12): On-Wing Torque Inspection · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B22 and 11 more. Effective Feb 14, 2001
- [AD 2000-15-01](https://openairdocs.org/ad/2000-15-01): Fuel Leakage · CFM International CFM56-2, CFM56-2A, CFM56-2B and 39 more. Effective Oct 2, 2000
- [AD 2000-05-22](https://openairdocs.org/ad/2000-05-22): CFM International CFM56-2, CFM56-2A, CFM56-2B and 3 more. Effective May 2, 2000
- [AD 99-06-16](https://openairdocs.org/ad/99-06-16): High Pressure Turbine Rotor (HPTR) Front Air Seal · CFM International CFM56-5, CFM56-5-A1/F, CFM56-5A4 and 3 more. Effective Apr 21, 1999
- [AD 98-21-23](https://openairdocs.org/ad/98-21-23): Electronic Engine Control · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B22 and 10 more. Effective Nov 2, 1998
- [AD 98-19-20](https://openairdocs.org/ad/98-19-20): Hydromechanical Unit · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B22 and 7 more. Effective Oct 7, 1998
- [AD 98-14-51](https://openairdocs.org/ad/98-14-51): Accessory Gearbox · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B22 and 10 more. Effective Oct 1, 1998
- [AD 98-19-10](https://openairdocs.org/ad/98-19-10): Accessory Gearbox · CFM International CFM56-3, CFM56-3B and CFM56-3C. Effective Sep 28, 1998
- [AD 98-12-32](https://openairdocs.org/ad/98-12-32): High Pressure Turbine Rotor Disks · CFM International CFM56-2, CFM56-2A, CFM56-2B and 3 more. Effective Jul 20, 1998
- [AD 98-10-11](https://openairdocs.org/ad/98-10-11): Accessory Gearbox · CFM International CFM56-3, CFM56-3B, CFM56-3C and 31 more. Effective Jun 3, 1998
- [AD 98-07-02](https://openairdocs.org/ad/98-07-02): Air/oil Seal · CFM International CFM56-3, CFM56-3B and CFM56-3C. Effective Mar 30, 1998
- [AD 98-02-04](https://openairdocs.org/ad/98-02-04): Low Pressure Turbine Case · CFM International CFM56-5B1/2P, CFM56-5B2/2P, CFM56-5B3/2P and 1 more. Effective Mar 23, 1998
- [AD 89-23-06 R1](https://openairdocs.org/ad/89-23-06-R1): Magnetic Chip Detector · CFM International CFM56-2, CFM56-2A, CFM56-3 and 8 more. Effective Jan 28, 1998
- [AD 97-08-01](https://openairdocs.org/ad/97-08-01): Fan Disks · CFM International CFM56-3, CFM56-3B and CFM56-3C. Effective Jun 23, 1997
- [AD 97-06-01](https://openairdocs.org/ad/97-06-01): High Pressure Compressor Rotor (HPCR) Stage 1-2 Spool · CFM International CFM56-5, CFM56-5B1, CFM56-5B1/2P and 28 more. Effective Jun 3, 1997
- [AD 97-05-13](https://openairdocs.org/ad/97-05-13): Air Turbine Engine Starter · CFM International CFM56-5, CFM56-5-A1/F, CFM56-5A4 and 3 more. Effective Jun 3, 1997
- [AD 96-25-11](https://openairdocs.org/ad/96-25-11): Redesigned Fan Blades · CFM International CFM56-3B and CFM56-3C. Effective Jan 29, 1997

### Historical (superseded or no longer in force)

- [AD 2021-10-09](https://openairdocs.org/ad/2021-10-09) (historical): Turbine Engine Compressor Section · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/3 and 82 more. Effective Jun 24, 2021
- [AD 2019-12-05](https://openairdocs.org/ad/2019-12-05) (historical): Turbine Section · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/P and 39 more. Effective Jul 5, 2019
- [AD 2018-18-01](https://openairdocs.org/ad/2018-18-01) (historical): Turbine Engine Compressor Section · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective Oct 16, 2018
- [AD 2018-10-11](https://openairdocs.org/ad/2018-10-11) (historical): Turbine Engine Compressor Section · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective Jun 1, 2018
- [AD 2018-09-10](https://openairdocs.org/ad/2018-09-10) (historical): Turbine Engine Compressor Section · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective May 14, 2018
- [AD 2013-26-01](https://openairdocs.org/ad/2013-26-01) (historical): Oil dynamic seal assembly · CFM International CFM56-3, CFM56-3B, CFM56-3C and 52 more. Effective Feb 3, 2014
- [AD 2013-02-02](https://openairdocs.org/ad/2013-02-02) (historical): High-pressure turbine (HPT) disks · CFM International CFM56-3, CFM56-3B and CFM56-3C with STC SE00034EN. Effective Jan 28, 2013
- [AD 2009-01-01](https://openairdocs.org/ad/2009-01-01) (historical): Exhaust gas temperature (EGT) · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/P and 22 more. Effective Dec 31, 2008
- [AD 97-09-02 R2](https://openairdocs.org/ad/97-09-02-R2) (historical): Low pressure turbine rotor (LPTR) · CFM International CFM56-5C2, CFM56-5C2/4, CFM56-5C2/F and 9 more. Effective Apr 29, 2003
- [AD 2003-02-04](https://openairdocs.org/ad/2003-02-04) (historical): Exhaust gas temperature (EGT) · CFM International CFM56-5 Series (all). Effective Feb 27, 2003
- [AD 97-09-02 R1](https://openairdocs.org/ad/97-09-02-R1) (historical): High Pressure Turbine rotor (HPTR) front shaft · CFM International CFM56-5C2/G, CFM56-5C2/G4, CFM56-5C3/G and 3 more. Effective Sep 24, 2002
- [AD 2001-17-14](https://openairdocs.org/ad/2001-17-14) (historical): LPT Conical Supports · CFM International CFM56-5C4/1. Effective Sep 7, 2001
- [AD 2001-08-51](https://openairdocs.org/ad/2001-08-51) (historical): Fuel leakage · CFM International CFM56-5 Series (all)
- [AD 2000-12-01](https://openairdocs.org/ad/2000-12-01) (historical): Critical Life-Limited Parts · CFM International CFM56-2, CFM56-2A, CFM56-2B and 54 more. Effective Dec 11, 2000
- [AD 99-08-16](https://openairdocs.org/ad/99-08-16) (historical): CFM International CFM56-2, CFM56-2A, CFM56-2B and 3 more. Effective May 13, 1999
- [AD 97-09-02](https://openairdocs.org/ad/97-09-02) (historical): High/Low Pressure Turbine Rotor · CFM International CFM56-5C2/G, CFM56-5C2/G4, CFM56-5C3/G and 3 more. Effective Jun 30, 1997

All 71: https://openairdocs.org/aircraft/N478US/ads.md

## Information bulletins (advisory) (4 in force)

- [SAIB NE-08-17R3](https://openairdocs.org/saib/NE-08-17R3): Turbine Section - Propulsion Technology LLC Unapproved Repair. Issued May 28, 2014
- [SAIB NE-13-33R2](https://openairdocs.org/saib/NE-13-33R2): Turbine Engine Air Inlet Section - LP Turbine, Stage 1 Nozzle Vanes. Issued Jan 28, 2014
- [SAIB NE-12-29](https://openairdocs.org/saib/NE-12-29): Engine Fuel Distribution  CFM56-5B LPTACC Fuel Manifold. Issued Apr 27, 2012
- [SAIB NE-06-02](https://openairdocs.org/saib/NE-06-02): . Issued Oct 18, 2005
- [SAIB NE-13-33R1](https://openairdocs.org/saib/NE-13-33R1) (historical): Turbine Engine Air Inlet Section - LP Turbine, Stage 1 Nozzle Vanes. Issued Jun 24, 2013
- [SAIB NE-13-33](https://openairdocs.org/saib/NE-13-33) (historical): Turbine Engine Air Inlet Section - LP Turbine, Stage 1 Nozzle Vanes. Issued May 13, 2013
- [SAIB NE-08-17R2](https://openairdocs.org/saib/NE-08-17R2) (historical): Turbine Section - Propulsion Technology LLC Unapproved Repair. Issued Mar 7, 2011
- [SAIB NE-08-17R1](https://openairdocs.org/saib/NE-08-17R1) (historical): Propulsion Technology LLC Unapproved Repair. Issued May 22, 2008
- [SAIB NE-08-17](https://openairdocs.org/saib/NE-08-17) (historical): Propulsion Technologies International Unapproved Repair. Issued May 14, 2008

## NTSB investigations

None matched to N478US.

## FAA accident and incident reports

None matched to N478US.

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## Service difficulty reports on N478US not matched to an aircraft (240, newest 50)

They name N478US, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR QXEA0201100](https://openairdocs.org/sdr/QXEA0201100), Jul 30, 2002: SIGN. INOPERATIVE. PDX- FORWARD EVACUATION EMERGENCY EXIT SIGN LIGHTS INOPERATIVE. REMOVED AND REPLACED FORWARD CABIN EXIT SIGN ASSEMBLY. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED
- [SDR QXEA0101791](https://openairdocs.org/sdr/QXEA0101791), Nov 14, 2001: ACM. ODOR. PDX - STRONG EXHAUST ODOR COMING FROM THE NUMBER ONE AIR CYCLE MACHINE. PLACED AIR CYCLE MACHINE ON MEL 21-1, RSI 330954.
- [SDR QXEA0101781](https://openairdocs.org/sdr/QXEA0101781), Nov 9, 2001: POWER SUPPLY. DISCHARGED. SEA- ALL EMERGENCY LIGHTS BATTERY POWER SUPPLIES ARE DEAD. REPLACED ALL EMERGENCY LIGHT BATTERY POWER SUPPLIES. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SER
- [SDR QXEA0101697](https://openairdocs.org/sdr/QXEA0101697), Oct 23, 2001: SIGN. INOPERATIVE. GEG-EXIT SIGN FORWARD CABIN INOPERATIVE. REMOVED AND REPLACED SIGN. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0101615](https://openairdocs.org/sdr/QXEA0101615), Oct 9, 2001: WIRE. BROKEN. BOI - EVACUATION LIGHT ON SEAT 12A,B IS INOPERABLE. REPAIRED BROKEN WIRE. OPERATIONAL CHECK IS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0101514](https://openairdocs.org/sdr/QXEA0101514), Sep 14, 2001: POWER SUPPLY. WEAK. PDX - AFT LEFT CABIN EMERGENCY BATTERY PACK IS WEAK. REMOVED AND REPLACED AFT LEFT BATTERY PACK. OPERATIONAL CHECK IS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0101423](https://openairdocs.org/sdr/QXEA0101423), Aug 30, 2001: SIGN. INOPERATIVE. GEG - FORWARD, MIDDLE, AND AFT EXIT SIGNS INOPERABLE. REMOVED AND REPLACED THE FORWARD, MIDDLE, AND AFT EXIT SIGNS. OPERATIONAL CHECK IS GOOD, AIRCRAFT RETURNED
- [SDR QXEA0100901](https://openairdocs.org/sdr/QXEA0100901), Jun 3, 2001: SIGN. INOPERATIVE. GEG- EMERGENCY EXIT SIGN, FORWARD SIDE OF ROW 8 INOP. REMOVED AND REPLACED SIGN. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0100791](https://openairdocs.org/sdr/QXEA0100791), May 26, 2001: RELAY. FAILED. SEA - EMERGENCY AND EVACUATION LIGHTS ILLUMINATED IN THE ARM POSITION. REMOVED AND REPLACED EMERGENCY LIGHTING CONTROL PANEL RELAY. OPERATIONAL CHECK GOOD. AIRC
- [SDR QXEA0100701](https://openairdocs.org/sdr/QXEA0100701), May 8, 2001: SIGN. INOPERATIVE. BOI - EXIT SIGN AT CABIN ENTERENCE, AND AT OVER FLIGHT COMPARTMENT DOOR INOPERATIVE. REMOVED AND REPLACED EXIT SIGNS. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED
- [SDR QXEA0100700](https://openairdocs.org/sdr/QXEA0100700), May 7, 2001: SIGN. INOPERATIVE. BOI - MID CABIN EMERGENCY EXIT LIGHT INOPERATIVE. REMOVED AND REPLACED EXIT SIGN. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0100422](https://openairdocs.org/sdr/QXEA0100422), Mar 20, 2001: SIGN. DEFECTIVE. PDX - FORWARD CABIN EXIT SIGN WAS REPORTED DIM. REMOVED AND REPLACED EXIT SIGN. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0100252](https://openairdocs.org/sdr/QXEA0100252), Mar 7, 2001: CIRCUIT BOARD. FAILED. GEG-EXIT SIGN ABOVE COCKPIT DOOR INOPERATIVE IN 28V POSITION. REPLACED LIGHT CIRCUIT BOARD. LIGHTS CHECK GOOD IN 3V AND 28V POSITION. AIRCRAFT RETURNED TO SERVI
- [SDR QXEA0003269](https://openairdocs.org/sdr/QXEA0003269), Dec 12, 2000: SIGN. INOPERATIVE. BOI - MID CABIN EXIT LIGHT (AFT FACING) FOUND INOPERATIVE. REMOVED AND REPLACED EXIT SIGN ASSEMBLY. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0003184](https://openairdocs.org/sdr/QXEA0003184), Dec 7, 2000: CIRCUIT BOARD. BURNED OUT. SEA-EMERGENCY EXIT SIGNS ABOVE GALLEY AND COCKPIT DOOR HAVE SEVERAL INOPERATIVE BULBS. REPLACED BULB CIRCUIT BOARD ON 1 AND 2 EXIT SIGN POSITIONS. OPERATIONAL C
- [SDR QXEA0003183](https://openairdocs.org/sdr/QXEA0003183), Dec 5, 2000: FLASHLIGHT. INOPERATIVE. PDX-CAPTAINS EMERGENCY FLASHLIGHT LED NOT FLASHING. REPLACED FLASHLIGHT. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0003148](https://openairdocs.org/sdr/QXEA0003148), Nov 28, 2000: FLASHLIGHT. INOPERATIVE. PDX - CHARGING INDICATOR ON EMERGENCY FLASHLIGHT INOPERATIVE. REMOVED AND REPLACED POWER SUPPLY FOR FLASHLIGHT. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SE
- [SDR QXEA0002728](https://openairdocs.org/sdr/QXEA0002728), Sep 30, 2000: A/C PACK. VIBRATION. BZN - VIBRATION WAS FELT DURING DESCENT. DIVERTED FROM BTM TO BZN. PLACED CABIN PACK ON DEFERRED MTX LIST. OPERATION CHECK FLIGHT GOOD. AIRCRAFT RETURNED TO SER
- [SDR QXEA0002586](https://openairdocs.org/sdr/QXEA0002586), Sep 20, 2000: BULB. FAILED. BOI - FORWARD FACING OVERWING EXIT SIGN INOPERATIVE. REMOVED AND REPLACED LIGHT ASSEMBLEY. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0002280](https://openairdocs.org/sdr/QXEA0002280), Aug 17, 2000: SEPARATOR. CONTAMINATED. PDX - CREW REPORTED SLIGHT BURNT OIL SMELL COMING FROM THE FLIGHT COMPARTMENT ACM. REMOVED AND REPLACED FLIGHT COMPARTMENT CONDENSATION BAG. OPERATIONAL CHECKS 
- [SDR QXEA0002044](https://openairdocs.org/sdr/QXEA0002044), Jul 24, 2000: CIRCUIT BOARD. FAILED. SEA - FOUND EXIT SIGN ABOVE FLIGHT COMPARTMENT DOOR TO HAVE BURNT OUT LAMPS. REMOVED AND REPLACED EXIT SIGN CIRCUIT BOARD. OPERATIONAL CHECKS GOOD. AIRCRAFT RET
- [SDR QXEA0000791](https://openairdocs.org/sdr/QXEA0000791), Mar 25, 2000: BATTERY PACK. INOPERATIVE. BOI- EMERGENCY EVACUATION LIGHTS ROW 12, 13, 14 STAY ON AFTER MAIN BATTERIES ARE TURNED OFF. REMOVED AND REPLACED ROW 14 UNDER SEAT BATTERY PACK TRAY. OPERATION
- [SDR QXEA0000754](https://openairdocs.org/sdr/QXEA0000754), Mar 17, 2000: SIGN. INOPERATIVE. GEG- EMERGENCY EXIT SIGN AT COCKPIT DOOR INOPERATIVE. REMOVED AND REPLACED EXIT SIGN. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA0000726](https://openairdocs.org/sdr/QXEA0000726), Mar 15, 2000: DOOR. OUT OF RIG. PDX- CENTER CARGO DOOR EXCEEDS SRM 51-50 MISMATCH LIMITATIONS WITH AIRCRAFT PRESSURIZED. PRESSURIZED AIRCRAFT ALL EDGES WITHIN LIMITS IAW FOKKER SRM 51-50-0 TAB
- [SDR QXEA0000747](https://openairdocs.org/sdr/QXEA0000747), Mar 14, 2000: RIVET. LOOSE. PDX- LOOSE RIVET AT STATION 8200 JUST OUTBOARD OF PANEL 82DH. REPAIRED IAW FOKKER SRM 51-31-01.
- [SDR QXEA0000683](https://openairdocs.org/sdr/QXEA0000683), Mar 13, 2000: SKIN. CRACKED. PDX- FUSELAGE SKIN CRACKED BETWEEN FRAMES 19975 AND 20075, STRINGERS 39 AND 40 AT TWO ATTACH RIVETS FOR V-STAB CLOSING ANGLE. REPAIRED IAW HORIZON AIR EA 4-53-1
- [SDR QXEA0000729](https://openairdocs.org/sdr/QXEA0000729), Mar 12, 2000: SKIN. GOUGED. PDX- A 2 INCH GOUGE ON AFT CARGO DOOR INNER SKIN. REPAIRED IAW FOKKER SRM 51-10-01 AND 52-02-05, PAGE 2 AND 3, FIGURE 1 AND FOKKER SRM 51-31-05.
- [SDR QXEA0000678](https://openairdocs.org/sdr/QXEA0000678), Mar 12, 2000: FLANGE. CRACKED. PDX- AFT GALLEY LOWER RIGHT HAND SUPPORT FLANGE IS CRACKED AT CENTER NUT PLATE. REPAIRED IAW FOKKER SRM 4-53-1066.
- [SDR QXEA0000677](https://openairdocs.org/sdr/QXEA0000677), Mar 12, 2000: FLANGE. CRACKED. PDX- AFT GALLEY COAT CLOSET, LOWER LEFT HAND SUPPORT FLANGE HAS CRACKS AROUND COAT CLOSET ATTACHMENT NUT PLATES (2 EACH). REPAIRED IAW FOKKER SRM 53-02-05 PAGE 
- [SDR QXEA0000724](https://openairdocs.org/sdr/QXEA0000724), Mar 10, 2000: FITTING. DAMAGED. PDX- RIGHT HAND OUTBOARD FLAP INBOARD LOWER FITTING THAT SUPPORTS THE T-LEVERS RIG PIN HOLE IS DAMAGED AND T-LEVER IS SCRATCHED. REPAIRED IAW HORIZON EA 4-57-38
- [SDR QXEA0000672](https://openairdocs.org/sdr/QXEA0000672), Mar 8, 2000: FLOORBEAM. CRACKED. PDX- FLOORBEAM CRACKED BELOW NR 1 GALLEY, FRAME 3820, BL 5R. REPAIRED IAW HORIZON AIR EA 4-53-930.
- [SDR QXEA0000723](https://openairdocs.org/sdr/QXEA0000723), Mar 7, 2000: SKIN. CORRODED. RIGHT HAND WING FUEL ACCESS APERTURE 72A NUMEROUS HOLES HAVE LIGHT FRETTING CORROSION AROUND THEM. REPAIRED IAW FOKKER SRM 51-10-04 PAGE 9.
- [SDR QXEA0000699](https://openairdocs.org/sdr/QXEA0000699), Mar 7, 2000: ANGLE. CRACKED. PDX- RIGHT HAND WING TO FUSELAGE ATTACH ANGLE CRACKED AT STATION 1700 Z STRINGER STATION 1825. REPAIRED IAW FOKKER SRM 51-31-01 AND FOKKER SRM 51-30-02.
- [SDR QXEA0000706](https://openairdocs.org/sdr/QXEA0000706), Mar 6, 2000: PANEL. CRACKED. REBATE OF RIGHT HAND WING FUEL PANEL 74A HAS TWO CRACKS INSIDE TWO OF THE FASTENER HOLES. REPAIRED HOLES IAW HORIZON AIR EA 4-57-373.
- [SDR QXEA0000705](https://openairdocs.org/sdr/QXEA0000705), Mar 6, 2000: PANEL. CRACKED. PDX- REBATE OF RIGHT HAND WING FUEL PANEL 74D HAS A CRACK INSIDE ONE OF THE FASTENER HOLES. REPAIRED IAW HORIZON AIR EA 4-57-373.
- [SDR QXEA0000704](https://openairdocs.org/sdr/QXEA0000704), Mar 6, 2000: PANEL. CRACKED. PDX- REBATE OF LEFT HAND WING FUEL PANEL 73A HAS A CRACK INSIDE ONE OF THE FASTENER HOLES. REPAIRED IAW HORIZON AIR EA 4-57-373.
- [SDR QXEA0000703](https://openairdocs.org/sdr/QXEA0000703), Mar 6, 2000: PANEL. CRACKED. PDX- REBATE OF LEFT HAND WING FUEL PANEL 73D HAS A CRACK INSIDE ONE OF THE FASTENER HOLES. REPAIRED IAW HORIZON AIR EA 4-57-373.
- [SDR QXEA0000734](https://openairdocs.org/sdr/QXEA0000734), Mar 5, 2000: FRAME. CRACKED. PDX- FRAME TO SKIN CASTELLATION CRACKED AT FRAME 20075 AND INBOARD OF STRINGER 39. REPAIRED IAW FOKKER SRM 53-02-13, PAGE 6, FIGURE 4.
- [SDR QXEA0000741](https://openairdocs.org/sdr/QXEA0000741), Mar 5, 2000: LOCK. BROKEN. PDX- BROKEN LOCK - DEVICE OF RUDDER - SHANK ON RUDDER. REPAIRED IAW FOKKER SRM 55-02-07, PAGES 10-11.
- [SDR QXEA0000722](https://openairdocs.org/sdr/QXEA0000722), Mar 4, 2000: RIB. DAMAGED. PDX- RIGHT HAND WING FORGED RIB AT WS 2635 TOP FLANGE INBOARD EDGE HAS TOOL DAMAGE BETWEEN TOP SKIN STRINGERS 2.37 AND 2.38 AND BELOW STRINGER 2.36. REPAIRED IA
- [SDR QXEA0000721](https://openairdocs.org/sdr/QXEA0000721), Mar 4, 2000: STRINGER. CORRODED. PDX- RIGHT HAND WING TOP SKIN STRINGERS BETWEEN WS 4700 AND WS 5280 HAVE NUMEROUS AREAS OF LIGHT ABRASION AND SMALL NICKS THAT HAVE LIGHT SURFACE CORROSION DEVE
- [SDR QXEA0000720](https://openairdocs.org/sdr/QXEA0000720), Mar 4, 2000: STRINGER. NICKED. PDX- RIGHT HAND WING TOP SKIN STRINGERS BETWEEN WS 5280 AND WS 7020 HAVE NUMEROUS AREAS WITH BARE METAL LIGHT ABRASIONS AND SMALL NICKS THAT HAVE LIGHT SURFACE 
- [SDR QXEA0000719](https://openairdocs.org/sdr/QXEA0000719), Mar 4, 2000: STRINGER. NICKED. PDX- RIGHT HAND WING TOP SKIN STRINGERS BETWEEN WS 7020 AND WS 8200 HAVE NUMEROUS AREAS WITH BARE ALUMINUM LIGHT ABRASIONS AND SMALL NICKS THAT HAVE LIGHT SURFA
- [SDR QXEA0000708](https://openairdocs.org/sdr/QXEA0000708), Mar 4, 2000: CHANNEL. DAMAGED. PDX- RIGHT HAND WING INTERNAL RIB LOWER U-CHANNEL AT WS 7600 HAS TOOL MARKS INSIDE CHANNEL BETWEEN BOTTOM SKIN STRINGERS 2.17 AND 2.15. REPAIRED IAW FOKKER SRM 
- [SDR QXEA0000707](https://openairdocs.org/sdr/QXEA0000707), Mar 4, 2000: CHANNEL. DAMAGED. PDX- RIGHT HAND WING INTERNAL RIB LOWER O CHANNEL AT WS 7600 HAS TOOL MARKS INSIDE CHANNEL BETWEEN BOTTOM SKIN AT STRINGERS 2.8 AND 2.7. REPAIRED IAW FOKKER SRM
- [SDR QXEA0000717](https://openairdocs.org/sdr/QXEA0000717), Mar 3, 2000: STRINGER. NICKED. PDX- RIGHT HAND WING TOP SKIN STRINGERS BETWEEN WS 8780 AND WS 9270 HAVE NUMEROUS AREAS OF BARE ALUMINUM LIGHT ABRASIONS AND SMALL NICKS, THAT HAVE LIGHT SURFAC
- [SDR QXEA0000728](https://openairdocs.org/sdr/QXEA0000728), Mar 3, 2000: WEB. DENTED. PDX- DENT IN LEFT HAND AIR CYCLING MACHINE COMPARTMENT WALL LOCATED NEAR THE FORWARD LOWER AIR CYCLING MACHINE MOUNT BRACKET. REPAIRED IAW HORIZON AIR EA 4-53-1
- [SDR QXEA0000718](https://openairdocs.org/sdr/QXEA0000718), Mar 3, 2000: STRINGER. NICKED. PDX- RIGHT HAND WING TOP SKIN AND STRINGERS BETWEEN WS 8200 AND WS 8770 HAVE NUMEROUS AREAS OF BARE ALUMINUM LIGHT ABRASIONS AND SMALL NICKS THAT HAVE LIGHT SUR
- [SDR QXEA0000716](https://openairdocs.org/sdr/QXEA0000716), Mar 3, 2000: STRINGER. NICKED. PDX- RIGHT HAND WING TOP SKIN STRINGERS BETWEEN WS 10550 AND WS 11190 HAVE NUMEROUS AREAS OF BARE ALUMINUM, LIGHT ABRASIONS AND SMALL NICKS THAT HAVE LIGHT SURF
- [SDR QXEA0000715](https://openairdocs.org/sdr/QXEA0000715), Mar 3, 2000: STRINGER. NICKED. PDX- RIGHT HAND WING TOP SKIN STRINGERS BETWEEN WS 9910 AND WS 10550 HAVE NUMEROUS AREAS OF BARE ALUMINUM, LIGHT ABRASIONS AND SMALL NICKS THAT HAVE LIGHT SURFA

All 240: https://openairdocs.org/aircraft/N478US/unmatched-reports.md

## STCs that may be installed (OpenAirDocs) (37)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the airframe (Boeing 737-7H4)

- [STC ST00555AT](https://openairdocs.org/stc/ST00555AT): Installation of Airshow 210 system. AIRCRAFT RECONFIG TECHNOLOGIES, LLC. Lists 737 Series
- [STC SA4842SW](https://openairdocs.org/stc/SA4842SW): Modification of air to air heat exchanger (P/N 182820-2 Series 2). Honeywell International Inc. Lists 737 Series
- [STC SA270NW](https://openairdocs.org/stc/SA270NW): Installation of modified seat. Aviation Technical Services. Lists 737 Series
- [STC ST01162NY](https://openairdocs.org/stc/ST01162NY): Installation of Literature Pockets. Magee Plastics Company. Lists 737 Series
- [STC SA2607SO](https://openairdocs.org/stc/SA2607SO): Installation of coffee maker P/N 416-1001-29. B/E Aerospace Inc. Lists 737 Series
- [STC SA2608SO](https://openairdocs.org/stc/SA2608SO): Installation of rail assembly, P/N 416-0201-15. B/E Aerospace Inc. Lists 737 Series
- [STC SA3058SO](https://openairdocs.org/stc/SA3058SO): Installation of coffee maker 416-0001-23 and rail assembly 416-0201-5. B/E Aerospace Inc. Lists 737 Series
- [STC ST01476AT](https://openairdocs.org/stc/ST01476AT): Installation of coffee maker. B/E Aerospace Inc. Lists 737 Series
- [STC ST01778AT](https://openairdocs.org/stc/ST01778AT): Installation of espresso maker p/n 3510-0066-01. B/E Aerospace Inc. Lists 737 Series
- [STC SA629GL](https://openairdocs.org/stc/SA629GL): Installation of Grimes galley, Model 1545LW unit 2 and unit 4. B/E Aerospace. Lists 737 Series
- [STC ST01332AT](https://openairdocs.org/stc/ST01332AT): Installation of Galley Service Carts. Champ International, Inc. Lists 737 Series
- [STC ST09870SC](https://openairdocs.org/stc/ST09870SC): Installation of Mechanical Window Shades. Lou Martin & Associates. Lists 737 Series
- [STC ST00033AT](https://openairdocs.org/stc/ST00033AT): Installation of a single Mode S system and provisions for a TCAS II system. General Aerospace, Inc. Lists 737 Series
- [STC SA4532NM](https://openairdocs.org/stc/SA4532NM): Installation of Coltech, CTD-80 ATSCALL, enabling company calling of selected aircraft via company selected radio. Avtech Corporation. Lists 737 Series
- [STC ST4532NM](https://openairdocs.org/stc/ST4532NM): Installation of Coltech CTD-80 ATSCALL, enabling company calling of selected aircraft via company selected radio. Avtech Corporation. Lists 737 Series
- [STC ST00774NY](https://openairdocs.org/stc/ST00774NY): Installation of a passenger cabin Liquor/beverage service cart P/N E500170. (757-222) (767-222) (727-222) (737 SERIES 222, 291, 322, 522) (747-100 SERIES 238B). Driessen Aircraft Interior Systems USA, Inc. Lists 737 Series
- [STC ST02052AT](https://openairdocs.org/stc/ST02052AT): Installation of a single Collins GNLU910A flight management system, along with global navigation satellite system sensor. General Aerospace, Inc. Lists 737 Series
- [STC SA02034AT](https://openairdocs.org/stc/SA02034AT): Manufacture of tray carrier, P/N 2282-506. BFE Services. Lists 737 Series
- [STC ST01968AT](https://openairdocs.org/stc/ST01968AT): Manufacture of inserts for galley stowage. JK Aerospace, Inc. Lists 737 Series
- [STC SA01916AT](https://openairdocs.org/stc/SA01916AT): Manufacture of Tray Carrier P/N 1839-501. BFE Services. Lists 737 Series
- [STC SA2534SO](https://openairdocs.org/stc/SA2534SO): Installation of window shades, acoustic panes and reveals. Magee Plastics Company. Lists 737 Series
- [STC ST179CH](https://openairdocs.org/stc/ST179CH): Installation of cargo container curtain. Plastic Composites Corp. Lists 737 Series
- [STC SA00056LA](https://openairdocs.org/stc/SA00056LA): Installation of Weber Coffeemaker, P/N 870130-415. Monogram Systems. Lists 737 Series
- [STC SA6090NM](https://openairdocs.org/stc/SA6090NM): Installation of emergency vision assurance system (EVAS). VisionSafe Corporation. Lists 737 Series
- [STC SA370NW](https://openairdocs.org/stc/SA370NW): Removal of passenger interior, installation of cargo compartment liners and cargo tie down equipment. Western Metal Products. Lists 737 Series
- [STC SA2589CE](https://openairdocs.org/stc/SA2589CE): Install Bennetts Seat Converter Stowage Compartment on passenger seat(s). John's Aircraft and Upholstery. Lists 737 Series
- [STC SA1029NW](https://openairdocs.org/stc/SA1029NW): Installation of a cargo system. Western Metal Products. Lists 737 Series
- [STC SA1258EA](https://openairdocs.org/stc/SA1258EA): Installation of Cosco model78-( ) child restraint system. (172M S/N 17263459 - 17267584). Miller Stuart R. Lists 737 Series
- [STC SA1052SO](https://openairdocs.org/stc/SA1052SO): Installation of GE battery P/N43B022RB36 in place of Marathon P/N CA-727-7, CA-727-20, or CA-27-20 batteries or SAFT P/N23180 batteries; or installation of GE battery P/N 43B020RB10 replacing Marathon P/N CA-727-7, CA-727-20 or CA-27-20 or SAFT P/N 23186 or 23180 batteries. General Electric Company. Lists 737 Series
- [STC SA1082NW](https://openairdocs.org/stc/SA1082NW) (historical): Installation of auxiliary fuel tanks in the aft cargo compartment. (737 series -2K9A). Rogerson ATS. Lists 737 Series

### Approved for the engine (CFM International CFM56 series)

- [STC SE04840NY](https://openairdocs.org/stc/SE04840NY): Installation of HarcoSemco Exhaust Gas Temperature (EGT) Electrical Harnesses in CFM56-7 engine. Kilroy Aviation LLC. Lists CFM56-7B20
- [STC SE03036CH](https://openairdocs.org/stc/SE03036CH): Application of a deep compressive stress layer using a Low Plasticity Burnishing (LPB) process on CFM56-7 Series Engines Stage 1 High Pressure Compressor (HPC) Blade Dovetails in accordance with Delta Air Lines Inc. Drawing No. 72-0396, Revision B, dated November 3, 2011, or later FAA Approved revision. Delta Air Lines Inc. Lists CFM56-7B20
- [STC SE00032EN](https://openairdocs.org/stc/SE00032EN): Installation of Pratt & Whitney (P&W) Global Material Solutions (GMS) CFM56-3 Fan/Booster Module. Pratt & Whitney. Lists CFM56-3
- [STC SE00033EN](https://openairdocs.org/stc/SE00033EN): Installation of Pratt & Whitney (P&W) Global Material Solutions (GMS) CFM56-3 High Pressure Compressor Module. Pratt & Whitney. Lists CFM56-3
- [STC SE00034EN](https://openairdocs.org/stc/SE00034EN): Installation of Pratt & Whitney (P&W) Global Material Solutions (GMS) CFM56-3 High Pressure Turbine Module. Pratt & Whitney. Lists CFM56-3
- [STC SE00035EN](https://openairdocs.org/stc/SE00035EN): Installation of Pratt & Whitney (P&W) Global Material Solutions (GMS) CFM56-3 Low Pressure Turbine Module. Pratt & Whitney. Lists CFM56-3
- [STC SE00822CH](https://openairdocs.org/stc/SE00822CH): Install AeroControlex P/N 2604880-001 variable stator feedback control cable and P/N 2604880-002 variable bleed valve feedback control cable on CFM International engines. AeroControlex Group TransDigm Inc. Lists CFM56-2

## Related

- Other Boeing 737-7H4 aircraft: https://openairdocs.org/model/boeing-737-7h4/aircraft.md
- The CFM International CFM56 series engine: https://openairdocs.org/engine/cfm-international-cfm56-series.md

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