# Boeing 737-4Q8 - Type: Aircraft model (FAA registry) - Registry code: 138447Q - Manufacturer (registry): BOEING - Model: 737-4Q8 - Aircraft type: Fixed wing multi engine - Category: Airplane - Engines: 2 · Turbo-fan - Seats: 149 - Weight class: 20,000 lb and over - Certification: Type certificated - Registered aircraft: 6 - Page: https://openairdocs.org/model/boeing-737-4q8 Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. ## ADs that may apply (OpenAirDocs) Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. None matched. ## Registered aircraft (6) - [N285XA](https://openairdocs.org/aircraft/N285XA): [Vent Airlines Inc](https://openairdocs.org/faa-owner/VENT%20AIRLINES%20INC), [Dover, DE](https://openairdocs.org/faa-place/DE/Dover), built 1993, S/N 26285 - [N403CK](https://openairdocs.org/aircraft/N403CK): [Kalitta Charters II LLC](https://openairdocs.org/faa-owner/KALITTA%20CHARTERS%20II%20LLC), [Ypsilanti, MI](https://openairdocs.org/faa-place/MI/Ypsilanti), built 1992, S/N 26280 - [N670MT](https://openairdocs.org/aircraft/N670MT): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), S/N 25100 - [N780MT](https://openairdocs.org/aircraft/N780MT): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), S/N 25101 - [N807TJ](https://openairdocs.org/aircraft/N807TJ): [Eastern 737 Asset Holdings LLC](https://openairdocs.org/faa-owner/EASTERN%20737%20ASSET%20HOLDINGS%20LLC), [Kansas City, MO](https://openairdocs.org/faa-place/MO/Kansas%20City), built 1992, S/N 25098 - [N808TJ](https://openairdocs.org/aircraft/N808TJ): [Eastern 737 Asset Holdings LLC](https://openairdocs.org/faa-owner/EASTERN%20737%20ASSET%20HOLDINGS%20LLC), [Kansas City, MO](https://openairdocs.org/faa-place/MO/Kansas%20City), built 1993, S/N 25103 ## NTSB investigations (3) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB DCA13WA072](https://openairdocs.org/ntsb/DCA13WA072), Apr 5, 2013: Boeing B737 (N279AD), Guatemala City, Guatemala, incident, minor damage - [NTSB SEA00IA019](https://openairdocs.org/ntsb/SEA00IA019), Nov 11, 1999: Boeing 737-400 (N772AS), Portland, OR, incident, minor damage. Probable cause: Arcing in the electrical system wiring for undetermined reasons. - [NTSB ANC97LA015](https://openairdocs.org/ntsb/ANC97LA015), Dec 22, 1996: Boeing 737-400 (N775AS), Yakutat, AK, no damage. Probable cause: an in-flight encounter with unforecast severe clear air turbulence. ## FAA accident and incident reports (6) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Incident 20250110001559I](https://openairdocs.org/incident/20250110001559I), Jan 10, 2025: Boeing 737-4Q8 (N807TJ), Miami, FL, No damage. At approximately 1125EST on 10 January 2025, the flight was holding at spot 20 when the crew noticed smoke and an electrical smell from the circuit breaker… - [Incident 20110124000689I](https://openairdocs.org/incident/20110124000689I), Jan 24, 2011: Boeing 737-4Q8 (N754AS), Seatac, WA, Minor damage. On January 24, 2011, at approximately 1801 Alaska standard (ast) time, a Boeing 737-400 aircraft registered as N754AS and operated by Alaska airlines landed at… - [Incident 20050730017239I](https://openairdocs.org/incident/20050730017239I), Jul 30, 2005: Boeing 7374Q8 (N784AS), Fairbanks, AK, Substantial damage. (-23) Aircraft was struck by lightning on the left side of radome. The lightning force exited the aircraft via static wicks on the left side of horizontal… - [Incident 20000611032939I](https://openairdocs.org/incident/20000611032939I), Jun 11, 2000: Boeing 7374Q8 (N785AS), Los Angeles, CA. (-23)Sun. June 11, 2000, Alaska airlines flight 236 was on the approach to lax executing the sadde sax arrival. The controller advised asaa 236 to use caution… - [Incident 19990627016149I](https://openairdocs.org/incident/19990627016149I), Jun 27, 1999: Boeing 7374Q8 (N775AS), Palm Springs, CA. L/e flap indicator light illuminated. Discrepancy was m.e.l. I.a.w. 27-4 Alaska m.g.l., placard #R77470. Aircraft schedule to stop in san francisco for repair… - [Accident 19961222040129A](https://openairdocs.org/incident/19961222040129A), Dec 22, 1996: Boeing 7374Q8 (N775AS), Yakutat, AK. Encountered cat at FL350. 2 flight attendants seriously injured. ## Service difficulty reports (6,249, newest 50) As reported by operators and repair stations, by the model named in the report. - [SDR K11A2026090400388](https://openairdocs.org/sdr/K11A2026090400388), Sep 4, 2026: CONTROLLER. FAILED. AUTO FAIL LIGHT ON IN AIR, CABIN ALT NOT CONTROLLABLE IN MANUAL MODE. REMOVED AND REPLACED PRESSURE CONTROLLER IAW AMM 21-31-21. CONTROLLER OPS CHECK PERFORMED - [SDR 2026FA0000070](https://openairdocs.org/sdr/2026FA0000070), Jan 31, 2026: POWER SUPPLY. INOPERATIVE. R/H MID TO AFT EMERGENCY LIGHT POWER SUPPLY INOP - [SDR 2026FA0000069](https://openairdocs.org/sdr/2026FA0000069), Jan 31, 2026: POWER SUPPLY. INOPERATIVE. R/H MID TO AFT EMERGENCY LIGHT POWER SUPPLY INOP - [SDR K11A2025120300362](https://openairdocs.org/sdr/K11A2025120300362), Dec 3, 2025: OIL SYSTEM. LEAKING. AFTER FURTHER INVESTIGATION OIL WAS FOUND AROUND AND IN NR 1 ENGINE INLET COWL AND BOOSTER MODULE. R&R ENGINE NR 1 IAW AMM 71-00-02. PERFORMED TEST 9 IAW AMM 71 - [SDR K11A2025120300361](https://openairdocs.org/sdr/K11A2025120300361), Dec 2, 2025: CONTROL PANEL. FAILED. MODE CONTROL PANEL FROZE IN FLIGHT, WITHOUT THE ABILITY TO CHANGE ANY MODE (COURSE) ALT, HLD, SPEED, N1, HDG SEL, LNAV, VNAV, FD MASTER SIDE. AUTO THROTTLE CONT - [SDR K11A2025120200361](https://openairdocs.org/sdr/K11A2025120200361), Dec 2, 2025: CONTROL PANEL. FAULTED. MODE CONTROL PANEL FROZE IN FLIGHT, WITHOUT THE ABILITY TO CHANGE ANY MODE (COURSE) ALT, HLD, SPEED, N1, HDG SEL, LNAV, VNAV, FD MASTER SIDE. AUTO THROTTLE CONT - [SDR 2025F00278](https://openairdocs.org/sdr/2025F00278), Dec 1, 2025: A/C PACK. WARNING LIGHT. PACK LIGHT ILLUMINATED LEFT SIDE IAW AMM 21-61-83 PAGE 405 NR 4 ITEM B BITE INSTRUCTIONS TEST SATISFACTORILY. - [SDR 2025F00276](https://openairdocs.org/sdr/2025F00276), Nov 26, 2025: WIRE. DAMAGED. DURING THE TAKEOFF ROLL, PRIOR TO REACHING 60 UNIDS THE RIGHT AFT TANK LOW PRESSURE LIGHT ILLUMINATED, THE TAKEOFF WAS DISCONTINUE. IAW SWPM 20-10-13 PAG 7-10 T - [SDR 2025FA0000789](https://openairdocs.org/sdr/2025FA0000789), Nov 26, 2025: RELAY. UNSTABLE. THE AFT FUEL PUMP ON THE TANK #2 LOW PRESSURE LIGHT ILLUMINATED. IAW AMM 28-22-41 PAG 501-506 GROUND FAULT INTERRUPTER RELAY "20" RESET WAS PERFORMED. - [SDR K11A2025091600339](https://openairdocs.org/sdr/K11A2025091600339), Sep 16, 2025: PUMP. FAULTED. LOW PRESSURE HYDRAULIC LIGHT ILLUMINATED ON ELECTRIC PUMP #1, "B" SIDE. R AND R SYSTEM "B" EMDP IAW AMM 29-15-22, OPS AND LEAK CHECK GOOD IAW AMM 29-15-00. - [SDR 4TXA202506070001](https://openairdocs.org/sdr/4TXA202506070001), May 14, 2025: LIGHT. INOPERATIVE. LEFT FORWARD WING EMERGENCY EXIT EXTERIOR LIGHT INOP. SECURED CONTACTS AND REPLACED LAMPS - [SDR K11A2024092300286](https://openairdocs.org/sdr/K11A2024092300286), Sep 23, 2024: WATER SEPARATOR. FAULTED. AT 14500 FT AUTO FAIL AND STANDBY LIGHTS CAME ON. I CALLED FOR THE QRH, AS MY F.O. STARTED THE QRH FOR CABIN ALTITUDE LIGHT AND HORN CAME ON. I IMMEDIATELY STAR - [SDR K11A202406140263](https://openairdocs.org/sdr/K11A202406140263), Jun 17, 2024: CLAMP. DISCONNECTED. LOST L/H PAC INFLIGHT. CORRECTIVE ACTION & OTHER PERTINENT INFORMATION: RESECURED L/H PACK CLAMP ON CONDENSER IAW B737 AMM 20-50-11 PRESSURIZED L/H AND R/H PACK - [SDR I5EA2024011600007](https://openairdocs.org/sdr/I5EA2024011600007), Jan 16, 2024: POWER SUPPLY. NO TEST. MODULE M1137 REQUIRES REPLACEMENT. REMOVED AND REPLACED POWER SUPPLY MODULE M1137 AT STA. 975R AND TEST IAW B737-400 AMM 33-51-51. TEST OK. - [SDR I5EA2024011600006](https://openairdocs.org/sdr/I5EA2024011600006), Jan 16, 2024: BATTERY PACK. NO TEST. SEVERAL R/H AFT EMERGENCY AISLE LIGHT INOP. REMOVED AND REPLACED EMERGENCY LIGHT BATTERY M1137 AT STA. 975R AND TEST IAW B737-400 AMM 33-51-51. TEST OK. - [SDR I5EA2023090800003](https://openairdocs.org/sdr/I5EA2023090800003), Sep 8, 2023: BATTERY PACK. NO TEST. AISLE LIGHT AT STA 500E + R INOP FOR EMERGENCY LIGHT. REMOVED AND REPLACED BATTERY PACK FOR AILSE LIGHT M1468 STA 500C + 10L IAW B737-400 AMM 33-51-51. - [SDR I5EA2023081100019](https://openairdocs.org/sdr/I5EA2023081100019), Aug 11, 2023: UNKNOWN. UNKNOWN. FUSELAGE SKIN CRACK AT STA. 727E, STR 24R, REPAIRED FUSELAGE RH SKIN AT STA.727E, STR. 24R, IAW B737-400 SRM 53-00-01, REPAIR 31 - [SDR K11A2023071000218](https://openairdocs.org/sdr/K11A2023071000218), Jul 10, 2023: UNKNOWN. UNKNOWN. AIRCRAFT DOOR FAULTY INDICATION. CREW WAS ALERTED TO HIGH SOUND AIR FLOW AND A PRONOUNCED SOUND OF THE ENGINES. - [SDR I5EA2023051600006](https://openairdocs.org/sdr/I5EA2023051600006), May 16, 2023: MODULE. NO TEST. MODULE M1134 REQUIRES REPLACEMENT. REMOVE AND REPLACE MODULE M1134 AT STA. 634L IAW B737-400 AMM 33-51-51. OPS CHECK GOOD. - [SDR I5EA2023051600005](https://openairdocs.org/sdr/I5EA2023051600005), May 16, 2023: BATTERY PACK. NO TEST. OVERWING EMERGENCY EXIT LIGHT FOR HATCH INOP. REMOVED AND REPLACED BATTERY PACK AT M1134 AT STA. 634L IAW B737-400 AMM 33-51-51. OPS CHECK GOOD. - [SDR K11A2023032400190](https://openairdocs.org/sdr/K11A2023032400190), Feb 15, 2023: LIGHT. INOPERATIVE. EMERGENCY LIGHTS INOP IN GALLEY AREA NEAR L1 DOOR. - [SDR I5EA2023020600002](https://openairdocs.org/sdr/I5EA2023020600002), Feb 5, 2023: BATTERY PACK. INOPERATIVE. EMERGENCY LIGHT INOP AT STA. 727A+17 BULLNOSE. REMOVED AND REPLACED EMERGENCY BATTERY BACK AT M1576 STA. 727A WITH SERVICEABLE UNIT IAW B737-400 AMM 33-51-51, T - [SDR I5EA2023020200001](https://openairdocs.org/sdr/I5EA2023020200001), Feb 2, 2023: BATTERY PACK. NO TEST. CENTER OVER WING ISLE R/H EMERGENCY LIGHT IS INOP. REMOVE AND REPLACED EMERGENCY LIGHT BATTERY PACK M1479 AT STA. 598R IAW B737-400 AMM 33-51-51. OPS CHECK GOOD - [SDR I5EA2022112800006](https://openairdocs.org/sdr/I5EA2022112800006), Nov 25, 2022: BATTERY PACK. INOPERATIVE. FOUND EMERGENCY LIGHTS INOPERATIVE, REMOVED AND REPLACED FIVE BATTERY PACKS IAW AMM 33-5-51, OPS CHECKED GOOD. - [SDR I5EA2022110100002](https://openairdocs.org/sdr/I5EA2022110100002), Nov 1, 2022: BATTERY PACK. NO TEST. FWD SERVICE LIGHT INOP. REMOVE AND REPLACE BATTERY PACK AT M1133 STA. 330L IAW B737-400 AMM 33-51-51. TEST GOOD. - [SDR I5EA2022110100001](https://openairdocs.org/sdr/I5EA2022110100001), Nov 1, 2022: BATTERY PACK. NO TEST. EMERGENCY EXIT LIGHT INOP AT ROW 3 CLASS DIVIDERS. REMOVED AND REPLACE BATTERY PACK AT M1132 STA. 330R IAW B737-400 AMM 33-51-51. TEST GOOD. - [SDR I5EA2022101700008](https://openairdocs.org/sdr/I5EA2022101700008), Oct 14, 2022: BATTERY PACK. DISCHARGED. EMERGENCY LIGHT OUT AT OVERWING HATCH EXIT LIGHT RIGHT, REMOVED AND REPLACED EMERGENCY BATTERY WITH SERVICEABLE AT M1474, STA. 598R, IAW B737-400 AMM 33-51-51 - [SDR I5EA2022101400006](https://openairdocs.org/sdr/I5EA2022101400006), Oct 13, 2022: POWER SUPPLY. NO TEST. EMERGENCY LIGHT OUT OVERWING. REMOVED AND REPLAED EMERGENCY LIGHT POWER SUPPLY M1134, STA. 634L FOR LEFT OVERWING IAW B737 AMM 33-51-51, OPS CHECK GOOD - [SDR I5EA2022101700007](https://openairdocs.org/sdr/I5EA2022101700007), Oct 12, 2022: BATTERY PACK. DISCHARGED. EMERGENCY LIGHT OUT AISLE LIGHT RIGHT STA. 704R. REMOVED AND REPLACED BATTERY PACK FOR AISLE LIGHT AT M1435, STA. 747R, IAW B737-400 AMM 33-51-51 - [SDR K11A2022092000162](https://openairdocs.org/sdr/K11A2022092000162), Sep 20, 2022: HOSE. DAMAGED. PROBLEM DESCRIPTION: HYD SYSTEM A, LOW PRESSURE ON THE ENGINE HYD PUMP AND ELEC 2 PUMP LOW PRESSURE. HYD SYSTEM A ZERO IN RESERVOIR CORRECTIVE ACTION & OTHER PE - [SDR K11A2022080900153](https://openairdocs.org/sdr/K11A2022080900153), Aug 9, 2022: SENSOR. DIRTY. PROBLEM DESCRIPTION: NO GREEN INDICATION OF NOSE LANDING GEAR WHEN EXTENDED IN BNA, FOLLOWED LANDING GEAR ALTERNATE EXTENSION CHECKLIST, DECIDED TO DIVERT TO CV - [SDR I5EA2022071500002](https://openairdocs.org/sdr/I5EA2022071500002), Jul 15, 2022: BATTERY PACK. NO TEST. EMERGENCY ISLE LIGHT INOP AT STA 607R. REMOVED AND REPLACED EMERGENCY LIGHT BATTERY PACK AT STA 500C + 10 IAW B737-400 AMM 33-51-514. TEST OK. - [SDR K11A2022040600123](https://openairdocs.org/sdr/K11A2022040600123), Apr 6, 2022: SWITCH. NONE. PROBLEM DESCRIPTION: MAIN CARGO DOOR WARNING LIGHT ILLUMINATED DURING CLIMB, HOOKS UNLATCHED LIGHT WAS ILLUMINATED ON CARGO DOOR CONTROL PANEL. CORRECTIVE ACTIO - [SDR K11A2022011810110](https://openairdocs.org/sdr/K11A2022011810110), Jan 11, 2022: SEAT TRACK. WORN. 1ST OFFICER SEAT LOCKING HOLE WORN - [SDR K11A2022011810109](https://openairdocs.org/sdr/K11A2022011810109), Jan 11, 2022: SEAT TRACK. WORN. CAPT'S SEAT TRACK LOCKING HOLE WORN - [SDR I5EA2021111000002](https://openairdocs.org/sdr/I5EA2021111000002), Nov 10, 2021: CHARGER. NONE. FOUND BATTERY CHARGER INOP FOR EMERGENCY LIGHTS AT STA. 975 / M1137. REMOVED AND REPLACED BATTERY CHARGER AT M1137 / STA.975 IAW B737-400 AMM 33-51-51. OPS CHEC - [SDR I5EA2021111000001](https://openairdocs.org/sdr/I5EA2021111000001), Nov 10, 2021: BATTERY PACK. NO TEST. RIGHT AFT CABIN EMERGENCY LIGHTS INOP. REMOVED AND REPLACED R/H AFT EMERGENCY LIGHT BATTERY AT M1137 / STA.975 IAW B737-400 AMM 33-51-51. OPS CHECK GOOD. - [SDR I5EA2021081700012](https://openairdocs.org/sdr/I5EA2021081700012), Aug 16, 2021: CIRCUIT BREAKER. TRIPPED. LANDING GEAR WILL NOT MOVE TO THE UP POSITIOON AFTER TAKEOFF. DURING TROUBLESHOOT, FOUND CIRCUIT BREAKER (LATCH & PRESS WARN) POPPED OUT, RESET CIRCUIT BREAKER - [SDR I5EA2021032500011](https://openairdocs.org/sdr/I5EA2021032500011), Mar 25, 2021: BATTERY PACK. INOPERATIVE. RH OVER WING EMERGENCY LIGHT INOP. REPLACED EMERGENCY LIGHT BATTERY M1479 WITH SERVICEABLE UNIT AND TEST IAW B737-400 AMM 33-51-51. - [SDR I5EA2021032500010](https://openairdocs.org/sdr/I5EA2021032500010), Mar 25, 2021: CHARGER. INOPERATIVE. EMERGENCY LIGHT BATTERY CHARGER INOP AT STA 625 M1479. REMOVED AND REPLACED EMERGENCY LIGHT BATTERY CHARGER M1479 AND TEST IAW B737-400 AMM 33-51-51 - [SDR I5EA2021022200007](https://openairdocs.org/sdr/I5EA2021022200007), Feb 21, 2021: CHARGER. INOPERATIVE. BATTERY CHARGER INOP AT M1468, STA. 500C, STR 10L. REMOVED AND REPLACED BATTERY CHARGER M1468 AT STA. 500C, STR. 10L WITH SERVICEABLE UNIT AND TEST IAW B737-400 - [SDR I5EA2021011900006](https://openairdocs.org/sdr/I5EA2021011900006), Jan 19, 2021: BATTERY PACK. NO TEST. R1 EMERGENCY LIGHT INOPERABLE. REMOVED AND REPLACED BATTERY PACK M1674. OPERATIONS CHECK GOOD, IAW B737-400 AMM 33-51-02. - [SDR I5EA2020120700002](https://openairdocs.org/sdr/I5EA2020120700002), Dec 1, 2020: BATTERY PACK. DISCHARGED. AFT CABIN RT SIDE EMERGENCY LIGHT INOPERABLE. REMOVED AND REPLACED EMERGENCY BATTERY POWER SUPPLY. PERFORMED OPERATIONS CHECK NORMAL, PER B737 AMM 33-51-02. - [SDR I5EA2020101600006](https://openairdocs.org/sdr/I5EA2020101600006), Oct 16, 2020: SMOKE DETECTOR. FALSE ACTIVATION. INTERMITTENT "MAIN CARGO SMOKE" INDICATION UPON INITIAL DESCENT FOR A FEW MINUTES, THEN NO FURTHER INDICATION. RAN SMOKE DET TEST, PER AMM 10-R-817-MM REV D SUP - [SDR I5EA2020100500002](https://openairdocs.org/sdr/I5EA2020100500002), Sep 13, 2020: SLIDE. UNWANTED DEPLOY. L1 DOOR EVACUATION SLIDE INADVERTENTLY DEPLOYED BY GROUND CREW. SLIDE DEFFERED ON LOGPAGE 59980, MEL 52-16, CAT B, EXP 9-16-20, TRACKING NUMBER 2009035. SLIDE R - [SDR I5EA2020071600003](https://openairdocs.org/sdr/I5EA2020071600003), Jul 16, 2020: LIGHT. INOPERATIVE. RT AISLE EMERGENCY LIGHT INOP AT STA 500E. - [SDR I5EA2020062370001](https://openairdocs.org/sdr/I5EA2020062370001), Jun 17, 2020: OUTFLOW VALVE. MALFUNCTIONED. WHILE AT 360 IN CRUISE, CABIN EXCEEDED 10K FT, UNABLE TO CONTROL CABIN PRESSURE AND CHECK LIST COMPLETED. OUTFLOW VALVE MALFUNCTIONED. - [SDR Q2SA20200608432](https://openairdocs.org/sdr/Q2SA20200608432), Jun 8, 2020: BUSS. MALFUNCTIONED. AIRCRAFT GROUNDED. GEN 1 LOSS TRANSFER BUS FAIL ALL INSTRUMENTS OFF EXCEPT F/O PFD. FOUND GEN CONTROL UNIT #1 UNLOCKED AND SLID OUT OF RACK APPROX 3 IN RESECURE - [SDR I5EA2020051400003](https://openairdocs.org/sdr/I5EA2020051400003), Apr 25, 2020: SIGN. INOPERATIVE. SEAT ROW 14 AMD REAR OVERHEAD EXIT SIGN W/N HOLD A CHARGE. - [SDR I5EA2020051400002](https://openairdocs.org/sdr/I5EA2020051400002), Apr 25, 2020: SIGN. INOPERATIVE. AFT GALLEY RIGHT OVER DOOR EXIT SIGN INOP All 6,249: https://openairdocs.org/model/boeing-737-4q8/reports.md --- 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.