# N531AU: 1989 Boeing 737-3B7, registration cancelled 2025-03-17

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: March 17, 2025
- Status when cancelled: Valid registration
- Airframe: [Boeing 737-3B7](https://openairdocs.org/model/boeing-737-3b7) (registry code 138447F)
- Engine: [CFM International CFM56 series](https://openairdocs.org/engine/cfm-international-cfm56-series) (registry code 13802)
- Serial number: 24478
- Year built: 1989
- Type of aircraft: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: July 11, 1989
- Certificate issued: May 1, 2024
- Last registry action: May 1, 2024
- Mode S code: A6B437
- Owner when cancelled: [Eastern 737 Asset Holdings LLC](https://openairdocs.org/faa-owner/EASTERN%20737%20ASSET%20HOLDINGS%20LLC)
- Location: [Kansas City, MO](https://openairdocs.org/faa-place/MO/Kansas%20City)
- Owner type: LLC
- Owner's area on the map: 39.2746° N, 94.7266° W: Placed by OpenAirDocs at the center of ZIP code 64153, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N531AU
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=531AU
- Page: https://openairdocs.org/deregistered/N531AU-2025-03-17

From the FAA registry file of November 12, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Boeing 737-3B7: https://openairdocs.org/model/boeing-737-3b7.md

## Service difficulty reports (165, newest 50)

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

- [SDR I5EA2024012600010](https://openairdocs.org/sdr/I5EA2024012600010), Jan 26, 2024: BATTERY PACK. NO TEST. EMERGENCY LIGHTS INOP IN AFT CABIN. REMOVED AND REPLACED EMERGENCY LIGHT BATTERY IN AFT CABIN M1134 AT STA. 622L IAW B737-300 AMM 33-51-51. TEST OK.
- [SDR I5EA2024012600009](https://openairdocs.org/sdr/I5EA2024012600009), Jan 26, 2024: BATTERY PACK. NO TEST. EMERGENCY LIGHTS INOP IN FWD CABIN. REMOVED AND REPLACED EMERGENCY LIGHT BATTERY IN FWD CABIN M1133 AT STA. 330L IAW B737-300 AMM 33-51-51. TEST GOOD.
- [SDR I5EA2024012600008](https://openairdocs.org/sdr/I5EA2024012600008), Jan 26, 2024: BATTERY PACK. NO TEST. EMERGENCY LIGHTS INOP IN MID CABIN AFT OF OWEE. REMOVED AND REPLACED EMERGENCY LIGHT BATTERY IN MID CABIN M1136 AT STA. 753L IAW B737-300 AMM 33-51-51. TEST OK.
- [SDR I5EA2021072000002](https://openairdocs.org/sdr/I5EA2021072000002), Jul 20, 2021: BATTERY PACK. NO TEST. EMERGENCY LIGHT INOP AT ROW 20 L/H.. REMOVED AND REPLACED BATTERY PACK ON M1135 POWER SUPPLY AT STA. 629R IAW B-737-300 AMM 33-51-51. OPS CHECK GOOD.
- [SDR I5EA2021051300003](https://openairdocs.org/sdr/I5EA2021051300003), May 13, 2021: BATTERY PACK. NO TEST. MID-AFT CABIN EMERGENCY LIGHTS INOP.. REMOVED AND REPLACED BATTERY PACK AT STA.753L,M1136 IAW B-737-300 AMM 33-51-51 P/N ON:ABS-2013-1A S/N ON 63182.
- [SDR I5EA2020122900007](https://openairdocs.org/sdr/I5EA2020122900007), Dec 29, 2020: POWER SUPPLY. NO TEST. AFT CABIN EMERGENCY LIGHT INOPERABLE. REMOVED AND REPLACED BATTERY POWER SUPPLY, IAW B737 AMM 33-51-51. OPERATIONS CHECK OK.
- [SDR I5EA2020122900006](https://openairdocs.org/sdr/I5EA2020122900006), Dec 29, 2020: BATTERY PACK. NO TEST. AFT CABIN EMERGENCY LIGHT INOPERABLE. REMOVED AND REPLACED BATTERY POWER SUPPLY, IAW B737 AMM 33-51-51. OPERATIONS CHECK OK.
- [SDR I5EA20191107006](https://openairdocs.org/sdr/I5EA20191107006), Oct 30, 2019: RELIEF VALVE. LEAKING. GRADUAL DEPRESSURIZATION BEGAN IN CRUISE AT 36,000 FT. BY THE TIME WE DESCENDED TO 10,000 WE WERE AT AMBIENT OUTSIDE PRESSURE. COMPLETE LOSS OF CABIN PRESSURE
- [SDR I5EA2019083004](https://openairdocs.org/sdr/I5EA2019083004), Aug 29, 2019: CHIP DETECTOR. LOOSE. IN FLIGHT, NR 2 ENGINE LOW OIL PRESSURE LIGHT CAME ON, NR 2 EGT WAS RISING, OIL QUAINTY ZERO. SHUT DOWN NUMBER 2 ENGINE. PERFORMED TROUBLESHOOTING FOR NO OIL AT
- [SDR I5EA2019012201](https://openairdocs.org/sdr/I5EA2019012201), Jan 10, 2019: BATTERY PACK. DISCHARGED. DISCREPANCY: L1, R1 DOOR EXIT IDENTIFIER LIGHT INOP. CORRECTIVE ACTION: INSTALLED SERVICEABLE BATTERY PACK AT STA. 400, POWER SUPPLY REF. PEELS WIRING DIAGRAM B
- [SDR I5EA2018100900003](https://openairdocs.org/sdr/I5EA2018100900003), Oct 6, 2018: BATTERY PACK. DEPLETED. DISCREPANCY: EMERGENCY LIGHTS INOP AT M1197 AND STA 960L. CORRECTIVE ACTION: REMOVED AND REPLACED BATTERY PACK AT M1197 AND STA 960L PER AMM 33-51-51 OPS CHECK 
- [SDR I5EA2018100900002](https://openairdocs.org/sdr/I5EA2018100900002), Oct 6, 2018: BATTERY PACK. DEPLETED. DISCREPANCY: EMERGENCY LIGHTS INOP AT M1136 AND STA 753L. CORRECTIVE ACTION: REMOVED AND REPLACED BATTERY PACK AT M1136 AND STA 753L PER AMM 33-51-51 OPS CHECK 
- [SDR I5EA201808140001](https://openairdocs.org/sdr/I5EA201808140001), Aug 13, 2018: CONNECTOR. BROKEN. NR 2 FUEL VALVE CLOSED ILLUMINATED DURING CRUISE, AT FL370. RIGHT BLUE INTRANSIT INDICATED. AFTER SEVERAL MINUTES THE ENGINE ROLLED BACK AND RECOVERED. SEVERAL 
- [SDR I5EA20170701](https://openairdocs.org/sdr/I5EA20170701), Jul 7, 2017: FEEDER CABLE. DAMAGED. CARGO FIRE LIGHT ILLUMINATED ALONG WITH THE EQUIPMENT COOLING INOPERATIVE LIGHT, YAW DAMPER INOPERATIVE LIGHT, GROUND PROXIMITY INOPERATIVE LIGHT, FLIGHT RECORD
- [SDR I5EA2017012702](https://openairdocs.org/sdr/I5EA2017012702), Jan 20, 2017: FITTING. BACKED OUT. REJECTED TAKEOFF AT 80KTS, NO AIRSPEED ON CAPTAIN'S AIRSPEED INDICATOR. ON GATE RETURN, MECHANIC FOUND ADC QUICK RELEASE FITTING BACKED-OFF.
- [SDR I5EA2016080100001](https://openairdocs.org/sdr/I5EA2016080100001), Aug 15, 2016: BLEED VALVE. PRESSURE LOSS. DURING CLIMB, RIGHT ENGINE BLEED INDICATED FIVE PSI.
- [SDR USAA2013070900029](https://openairdocs.org/sdr/USAA2013070900029), Jul 5, 2013: LENS. BROKEN. C2 CHECK - L2 DOOR EXIT SIGN LIGHT ASSY COVER BROKEN. REPLACED L2 DOOR EXIT COVER IAW AMM 33-51-11.
- [SDR USAA2013070800020](https://openairdocs.org/sdr/USAA2013070800020), Jul 5, 2013: WIRE HARNESS. DEFECTIVE. C2 CHECK - EMERGENCY LIGHTS FROM SEAT 16 TO 22 INOP. INSTALLED EMERGENCY LIGHT WIRE HARNESS FROM SEAT ROW 16 TO 22, CHARGED EMERGENCY POWER SUPPLY M1197 & PERFO
- [SDR USAA2013070500022](https://openairdocs.org/sdr/USAA2013070500022), Jul 5, 2013: SKIN. CRACKED. C2 CHECK. FUSELAGE SKIN CRACKED AT 727E PLUS 12" AND S23L. REPAIRED SKIN IAW EA 504991.
- [SDR USAA2013070500023](https://openairdocs.org/sdr/USAA2013070500023), Jun 22, 2013: SKIN. CRACKED. C2 CHECK, FUSELAGE SKIN CRACKED AT AIR CONDITIONING ACCESS CUTOUT BETWEEN FS 520 & FS 540 BETWEEN S28L AND S28R. REPAIRED SKIN IAW SRM 53-30-01-2R-2.
- [SDR USAA2012081700014](https://openairdocs.org/sdr/USAA2012081700014), Aug 15, 2012: LIGHT. INOPERATIVE. MAINTENANCE REPORTED SEAT 14ABC EMERGENCY LIGHT INOPERATIVE. MAINTENANCE REMOVED AND REPLACED SEAT MOUNTED EMERGENCY LIGHT ASSEMBLY AT 14ABC PER AMM 33-51-12-91
- [SDR USAA2012080100003](https://openairdocs.org/sdr/USAA2012080100003), Jul 31, 2012: CIRCUIT CARD. FAULTY. AFTER TAKEOFF, GEAR HANDLE WAS RAISED TO THE UP POSITION, MAIN GEAR INDICATOR LIGHTS EXTINGUISHED NORMALLY. NOSE GEAR INDICATOR LIGHTS REMAINED RED OVER GREEN W
- [SDR USAA2012071300006](https://openairdocs.org/sdr/USAA2012071300006), Jul 9, 2012: FRAME. CRACKED. CDFI, FUSELAGE FRAME CRACKED AT BS 500B BETWEEN S19L AND S20L. REPAIRED FRAME IAW B737 SRM 53-00-07-2R, REPAIR 13.
- [SDR USAA2012061400008](https://openairdocs.org/sdr/USAA2012061400008), Jun 12, 2012: LOCKWASHER. SHEARED. CREW REPORTED THE FORWARD PASSENGER ENTRY DOOR (LEFT), HANGS UP WHEN HANDLE IS TURNED 1/4 TURN. MAINTENANCE FOUND LOCK TAB WASHER LOCK SHEARED PERMITTING AFT UP
- [SDR USAA2012061100003](https://openairdocs.org/sdr/USAA2012061100003), Jun 9, 2012: BEAM. WORN. RON CHECK - WEAR ON LEFT MAIN LANDING GEAR WALKING BEAM, BETWEEN RS STA 135 TO RS STA 259, WBL 120. REPLACED LEFT MAIN LANDING GEAR WALKING BEAM, BETWEEN RS STA
- [SDR USAA2012060500005](https://openairdocs.org/sdr/USAA2012060500005), Jun 1, 2012: HOOK. OUT OF ADJUST. CREW REPORTED THE ENTRY DOOR GIRT BAR HOLDER WON'T HOLD BAR. MAINTENANCE REFORMED ENTRY DOOR SLIDE PACK COVER GIRT BAR HOLDERS TO HOLD GIRT BAR SECURELY.
- [SDR USAA2012060500004](https://openairdocs.org/sdr/USAA2012060500004), Jun 1, 2012: DOOR. LACK OF LUBE. CREW REPORTED THE FORWARD ENTRY DOOR HARD TO OPEN WHEN ROTATING HANDLE. MAINTENANCE ACCOMPLISHED TROUBLESHOOTING PER AMM 52-11-00/101. LUBRICATED FORWARD ENTRY 
- [SDR USAA2012041800009](https://openairdocs.org/sdr/USAA2012041800009), Apr 17, 2012: LENS. MISSING. SMALL EMERGENCY EXIT SIGN AT LEFT OVERWING EXIT MISSING. REPLACED COVER.
- [SDR USAA2012041800001](https://openairdocs.org/sdr/USAA2012041800001), Apr 16, 2012: SLIDE. CUT. C1 CHECK - AFT ENTRY DOOR L2 SLIDE GIRT CUT AFT OF GIRT CABLE, ABOVE GIRT BAR. REPLACED AFT ENTRY DOOR L2 ESCAPE SLIDE ASSEMBLY IAW B737 AMM 25-61-35.
- [SDR USAA2012041700013](https://openairdocs.org/sdr/USAA2012041700013), Apr 16, 2012: SKIN. CRACKED. C1 CHECK - CRACK AT FUSELAGE SKIN 2 INCHES AFT OF BS 727E, S18R & 12 INCHES AFT OF BS 727E, S18R. REPAIRED FUSELAGE SKIN BETWEEN BS 727E TO BS 771 & BETWEEN S17
- [SDR USAA2012040200032](https://openairdocs.org/sdr/USAA2012040200032), Mar 31, 2012: LIGHT. BROKEN. CREW REPORTED THE EMERGENCY EXIT LIGHT AT ROW 22C BROKE LOOSE. MAINTENANCE REMOVED AND REPLACED THE EMERGENCY EXIT LIGHT ASSEMBLY AT ROW 22C PER AMM 33-51-00. O
- [SDR USAA2012032600022](https://openairdocs.org/sdr/USAA2012032600022), Mar 24, 2012: BATTERY PACK. DISCHARGED. MAINTENANCE REPORTED THE EMERGENCY EXIT LIGHTS INOPERATIVE AT ROWS 12-15. MAINTENANCE REMOVED AND REPLACED BATTERY PACK AT STA 747 PER AMM 33-51-51-962-015. OPS
- [SDR USAA2012030800013](https://openairdocs.org/sdr/USAA2012030800013), Mar 7, 2012: A/C PACK. CONTAMINATED. FLIGHT ATTENDANT'S REPORTED A "DIRTY SOCKS" SMELL IN CABIN APPROXIMATELY FOUR MINUTES FROM LANDING. FLIGHT LANDED WITHOUT INCIDENT. MAINTENANCE ACCOMPLISHED J/C
- [SDR USAA2012030700009](https://openairdocs.org/sdr/USAA2012030700009), Mar 5, 2012: ACTUATOR. MALFUNCTIONED. ON APPROACH INTO CLT, CREW REPORTED THE LEFT MAIN LANDING GEAR DID NOT EXTEND. PULLED MANUAL GEAR EXTENSION. LEFT MAIN LANDING GEAR GREEN LIGHT CAME ON. LANDED 
- [SDR USAA2012030600007](https://openairdocs.org/sdr/USAA2012030600007), Mar 4, 2012: COALESCER BAG. DIRTY. AFTER STARTING NR 1 ENGINE AND TURNING ON THE NR 1 PACK, CREW REPORTED A VERY STRONG ODOR FILLED THE COCKPIT - DIRTY SOCK SMELL. IRRITATING TO EYES AND LUNGS. T
- [SDR USAA2012030600006](https://openairdocs.org/sdr/USAA2012030600006), Mar 4, 2012: DUCT CLAMP. LOOSE. CREW REPORTED A STRONG DIRTY SOCK SMELL ON AIRCRAFT IN DESCENT BELOW 6,000 FEET LANDING. MAINTENANCE ACCOMPLISHED J/C 03L00021001, "737 TROUBLESHOOT CABIN ODOR"
- [SDR USAA2012022200016](https://openairdocs.org/sdr/USAA2012022200016), Feb 21, 2012: PROXIMITY SENSOR. FAULTY. CREW REPORTED THE "LEFT" LANDING GEAR INDICATOR RED LIGHT REMAINED ON WITH GEAR DOWN. DURING QRH PROCEDURE WITH HANDLE FROM UP TO DOWN, ALL GREEN LIGHTS WERE ON
- [SDR USAA2012012000003](https://openairdocs.org/sdr/USAA2012012000003), Jan 19, 2012: STOP. BROKEN. FLT 1904 - LEADING EDGE FLAPS TRANSIT LIGHT ILLUMINATED DURING FLAP EXTENSION NR 3 SLAT NOT FULLY EXTENDED. UPON FURTHER EVALUATION FOUND THE NR 3 SLAT INBOARD 
- [SDR USAA2012010900034](https://openairdocs.org/sdr/USAA2012010900034), Jan 8, 2012: LANDING GEAR. LACK OF LUBE. CREW REPORTED THE LEFT MAIN LANDING GEAR DID NOT EXTEND. THEY HAD TO MANUALLY EXTEND THE GEAR. FLIGHT LANDED WITHOUT FURTHER INCIDENT. AN EMERGENCY WAS DECLARED
- [SDR USAA2012010300039](https://openairdocs.org/sdr/USAA2012010300039), Dec 31, 2011: BATTERY. DISCHARGED. CREW REPORTED THE AFT LAVATORY SMOKE DETECTOR IS WEAK AND CHIRPING. MAINTENANCE REPLACED BOTH AFT LAVATORY SMOKE DETECTOR BATTERIES. OPS CHECK GOOD.
- [SDR USAA2011123000018](https://openairdocs.org/sdr/USAA2011123000018), Dec 29, 2011: SKIN. CRACKED. RON CHECK - FUSELAGE SKIN CRACKED AT BS 747+13 INCHES, S19L. REPAIRED FUSELAGE SKIN AT BS 747+13 INCHES, S19L IAW B737 SRM 53-00-01 REPAIR 31.
- [SDR USAA2011122900001](https://openairdocs.org/sdr/USAA2011122900001), Dec 27, 2011: SKIN. CRACKED. RON VISIT - 2 CRACKS IN FUSELAGE SKIN AT BS 500D+16 S-12L & BS 500D+15 S-12L. REPAIRED FUSELAGE SKIN AT BS 500D+16 S-12L & BS 500D+15 S-12L IAW EA 103584.
- [SDR USAA2011122700021](https://openairdocs.org/sdr/USAA2011122700021), Dec 26, 2011: SKIN. CRACKED. RON VISIT - CRACK IN FUSELAGE SKIN AT BS 760 APPROX 1 INCH ABOVE S19L. REPAIRED BS 760 APPROX 1 INCH ABOVE S19L IAW B737 SRM 53-00-01-2R-31 DETAIL XI.
- [SDR USAA2011122700020](https://openairdocs.org/sdr/USAA2011122700020), Dec 26, 2011: SKIN. CRACKED. RON VISIT - CRACK IN FUSELAGE SKIN AT BS 727D+5.5 INCHES, S19L. REPAIRED FUSELAGE SKIN AT BS 727D+5.5 INCHES, S19L IAW B737 SRM 53-00-01 REPAIR 31 DETAIL XI.
- [SDR USAA2011122200015](https://openairdocs.org/sdr/USAA2011122200015), Dec 22, 2011: SKIN. CRACKED. RON - CRACKED FUSELAGE SKIN AT BS 980 AND S24R. REPAIRED FUSELAGE SKIN AT BS 980 AND S24R IAW B737 SRM 53-00-01 REPAIR 31.
- [SDR USAA2011122200007](https://openairdocs.org/sdr/USAA2011122200007), Dec 22, 2011: LIGHT. DETACHED. CREW REPORTED THE EMERGENCY EXIT LIGHTS FELL OFF SEATS 21C/22C. MAINTENANCE SECURED EMERGENCY LIGHTS AT SEAT 21C/22C. OPS CHECK OK.
- [SDR USAA2011090200008](https://openairdocs.org/sdr/USAA2011090200008), Sep 1, 2011: MODULE. FAULTY. CREW REPORTED A LEFT MAIN LANDING GEAR INDICATION LIGHT PROBLEM ON APPROACH INTO CLT. CREW ACCOMPLISHED A COUPLE OF FLYBYS TO CONFIRM FROM THE TOWER AND OTHER F
- [SDR USAA2011080800011](https://openairdocs.org/sdr/USAA2011080800011), Aug 7, 2011: BATTERY. DISCHARGED. CREW REPORTED THE FORWARD LAVATORY SMOKE DETECTOR GIVES LOW BATTERY INDICATION. MAINTENANCE REMOVED AND REPLACED THE FORWARD LAVATORY SMOKE DETECTOR BATTERY. OP
- [SDR USAA2011070800005](https://openairdocs.org/sdr/USAA2011070800005), Jul 7, 2011: UNKNOWN. ODOR. FLIGHT ATTENDANT'S REPORTED A STRONG HOT ELECTRICAL SMELL IN AFT CABIN DURING FLIGHT. GALLEY POWER TURNED OFF AND FLIGHT ATTENDANT REPORTED SMELL WENT AWAY (NO 
- [SDR USAA2011063000004](https://openairdocs.org/sdr/USAA2011063000004), Jun 29, 2011: BALLAST. MALFUNCTIONED. FLT 1444 - CLT-RDU - SMOKE - THE "B" FLIGHT ATTENDANT REPORTED HEARING A POP NOISE IN THE AFT GALLEY, THAN OBSERVED SEEING SMOKE COME FROM OVERHEAD LIGHT IN AFT

All 165: https://openairdocs.org/deregistered/N531AU-2025-03-17/reports.md

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