# N931DQ: 2011 Boeing 737-9GPER - Status: Valid registration - Airframe: [Boeing 737-9GPER](https://openairdocs.org/model/boeing-737-9gper) (registry code 13844FN, 191 seats) - Engine: [CFM International CFM56-7B27E/B series](https://openairdocs.org/engine/cfm-international-cfm56-7b27e-b-series) (registry code 13800) - Serial number: 38302 - Year built: 2011 - Type: Fixed wing multi engine - Engine type: Turbo-fan - Airworthiness: Standard, transport - Airworthiness date: May 9, 2023 - Certificate issued: September 14, 2022 - Expires: September 30, 2029 - Mode S code: ACE9BA - Registered owner: [Delta Air Lines Inc](https://openairdocs.org/faa-owner/DELTA%20AIR%20LINES%20INC) - Location: [Atlanta, GA](https://openairdocs.org/faa-place/GA/Atlanta) - Owner type: Corporation - Owner's area on the map: 33.6604° N, 84.3865° W: Placed by OpenAirDocs at the center of ZIP code 30354, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=931DQ - Page: https://openairdocs.org/aircraft/N931DQ From the FAA registry file of October 27, 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 CFM56-7B27E/B model are included. ## ADs that may apply (OpenAirDocs): 6 in force ### Matched by airframe (Boeing 737-9GPER) None in force. ### Matched by engine (CFM International CFM56-7B27E/B 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 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 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 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 ### 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 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 ## Information bulletins (advisory) (1 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-08-17R2](https://openairdocs.org/saib/NE-08-17R2) (historical): Turbine Section - Propulsion Technology LLC Unapproved Repair. Issued Mar 7, 2011 ## NTSB investigations None matched to N931DQ. ## FAA accident and incident reports None matched to N931DQ. ## Service difficulty reports (14) As reported by operators and repair stations. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. - [SDR DALA2026091405126](https://openairdocs.org/sdr/DALA2026091405126), Sep 11, 2026: SPEED BRAKE. INACTIVE. ATO- APPROX 30KTS DUE TO SPEEDBRAKE DO NOT ARM ANNUNCIATION. FLIGHT CREW APPLIED MEL/PLACARD AND CONTINUED. SUBSEQUENTLY REPLACED TAKEOFF WARNING SWITCH S651. O - [SDR DALA2025122309337](https://openairdocs.org/sdr/DALA2025122309337), Dec 22, 2025: AOA. FAULTED. RTO- APPROX. 85 KNOTS DUE TO AIRSPEED SPLIT. PRESSURIZED CAPTAIN'S AND FIRST OFFICER'S PITOT SYSTEM. FOUND 1 KNOT DISAGREEMENT. REPLACED LEFT AND RIGHT AOA SENS - [SDR DALA2025111708371](https://openairdocs.org/sdr/DALA2025111708371), Nov 17, 2025: SLIDE. LOW PRESSURE. DURING SVC CHECK, FOUND R2 DOOR SLIDE PRESSURE OUT OF LIMITS. R & R R2 DOOR SLIDE PER AMDS WORK CARD 2560-4428 AND AMM 25. - [SDR DALA2025063004840](https://openairdocs.org/sdr/DALA2025063004840), Jun 25, 2025: FRAME. NOT REPORTED. (LOG 1045877) ACCOMPLISH RIGHT HAND STA 727 FRAME INNER CHORD 737 REPAIR SECTION 02. ACCOMPLISHED RIGHT HAND STA 727 FRAME INNER CHORD REPAIR SECTION 02 PER WOR - [SDR DALA2024122712019](https://openairdocs.org/sdr/DALA2024122712019), Dec 22, 2024: SPRING. BROKEN. SHIP 3931 -ATO- DISCONTINUED TAKEOFF APPROX. 30KTS DUE TO AFT CARGO DOOR INDICATION. CORRECTIVE ACTION: FOUND DOOR HANDLE ACTUATOR SPRING BROKEN. REPLACED SAME - [SDR DALA2024061806194](https://openairdocs.org/sdr/DALA2024061806194), Jun 14, 2024: GLOWSTRIP. DAMAGED. (LOG 5679994) PHOTOLUMINESCENT LIGHTING STRIP SECTIONS MISSING AT 18R 25R & 33R. R/R PHOTOLUMINESCENT STRIPS IAW B737 AMM 33-51. - [SDR DALA2024051905330](https://openairdocs.org/sdr/DALA2024051905330), May 17, 2024: SIGN. DETACHED. AIRCRAFT 3931, CENTER CABIN EMER EXIT SIGN FELL OFF. CORRECTIVE ACTION: REINSTALLED EMERGENCY EXIT SIGN COVER. (LP 5929494) - [SDR DALA2023042703297](https://openairdocs.org/sdr/DALA2023042703297), Apr 25, 2023: FRAME. DENTED. (LOG 2737299) DURING INSPECTION FOUND DENT IN FRAME AT STA 727K RBL 23 WL 158 IN AFT CARGO. REPAIRED DAMAGE PER ER/A 607558-14 REV ORIGINAL. - [SDR DALA2023042703301](https://openairdocs.org/sdr/DALA2023042703301), Apr 24, 2023: FRAME. DENTED. (LOG 2737006) DURING INSPECTIONS, DENTS WERE DISCOVERED ON THE INNER CHORD OF THE BS 727K FRAME WEB (P/N: 146A1255-11 & 146A1255-12), BETWEEN S-23R AND S-26R AT - [SDR DALA2023042403182](https://openairdocs.org/sdr/DALA2023042403182), Apr 20, 2023: SKIN. CORRODED. AIRCRAFT 3931, CORROSION ON UPPER FUSELAGE EXTERIOR SKIN UNDER ADF 1 ANTENNA STA 685-706 S1-2R. CORRECTIVE ACTION: COMPLIED WITH DELTA ER/A # 607361-14 REV ORIG - [SDR DALA2023041603008](https://openairdocs.org/sdr/DALA2023041603008), Apr 13, 2023: SKIN. CORRODED. (LOG 2717867) DURING INSPECTION FOUND CORROSION ON UPPER FUSELAGE EXTERIOR SKIN UNDER ADF 2 ANTENNA STA 727+9-727B STR 1-2R. REPAIRED CORROSION ON UPPER FUSELAG - [SDR DALA2023041202880](https://openairdocs.org/sdr/DALA2023041202880), Apr 11, 2023: CHANNEL. CORRODED. (LOG 2715111) DURING INSPECTION FOUND CORROSION AT STA 727-727I RBL 21 WL 158. REMOVED & REPLACED Z CHANNEL IAW B737 SRM 53-00-53-2R-5 & BOEING DWG 146A7500 REV - [SDR DALA2023041202879](https://openairdocs.org/sdr/DALA2023041202879), Apr 11, 2023: CHANNEL. CORRODED. (LOG 2714876) DURING INSPECTION FOUND L/H Z CHANNEL IN AFT CARGO BAY HAS MULTIPLE SPOTS OF CORROSION AT STA 727I+9 -767 LBL 21 WL 158. REMOVED AND REPLACED ZEE - [SDR DALA2023041102808](https://openairdocs.org/sdr/DALA2023041102808), Apr 10, 2023: CARGO TRACK. DENTED. (LOG 2712866) DURING INSPECTION FOUND AFT CARGO FLOOR SUPPORT RAIL HAS DENT AT STA787,LBL3. PERFORMED REPAIR AT AFT CARGO FLOOR SUPPORT RAIL FROM STA 787 TO STA ## STCs that may be installed (OpenAirDocs) (1) 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 engine (CFM International CFM56-7B27E/B 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 CFM56-7B27E/B1 ## Related - Other Boeing 737-9GPER aircraft: https://openairdocs.org/model/boeing-737-9gper/aircraft.md - The CFM International CFM56-7B27E/B series engine: https://openairdocs.org/engine/cfm-international-cfm56-7b27e-b-series.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.