# N959DZ: 2014 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: 39880 - Year built: 2014 - Type: Fixed wing multi engine - Engine type: Turbo-fan - Airworthiness: Standard, transport - Airworthiness date: March 1, 2023 - Certificate issued: March 10, 2022 - Expires: March 31, 2029 - Mode S code: AD5679 - 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=959DZ - Page: https://openairdocs.org/aircraft/N959DZ 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 CFM56-7B27E/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 N959DZ. ## FAA accident and incident reports None matched to N959DZ. ## Service difficulty reports (8) 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 DALA2026041302323](https://openairdocs.org/sdr/DALA2026041302323), Apr 8, 2026: BATTERY PACK. INOPERATIVE. FOUND L1 DOOR EMER. LIGHTS INOP. R/R FWD ENTRY EMERGENCY LIGHT POWER SUPPLY BATTER PER B737 AMM 33-51. OPS CHECK OK. (LOG 8492648 - AIRCRAFT WAS GROUNDED). - [SDR DALA2025072105466](https://openairdocs.org/sdr/DALA2025072105466), Jul 16, 2025: LIGHT. MALFUNCTIONED. (LOG 7444944) SIDEWALL LIGHT NEAR LEFT OVERWING EXIT FLICKERING. REMOVED AND REPLACED OVER WING EXIT SIDEWALL LIGHT AT 21ABC PER B737 AMM 33-21. OPS CHECK GOOD. - [SDR DALA2024100409694](https://openairdocs.org/sdr/DALA2024100409694), Oct 3, 2024: BATTERY PACK. INOPERATIVE. (LOG 6004324) FWD R1 EMER. LIGHTS INOP. R&R FWD EMERGENCY BATTERY PACK IAW B737 AMM 33-51. - [SDR DALA2024100409693](https://openairdocs.org/sdr/DALA2024100409693), Oct 3, 2024: BATTERY PACK. INOPERATIVE. (LOG 6004325) AFT R2 EMER. LIGHT INOP. R/R AFT R2 EMERGENCY BATTERY PACK ASSY PER B737 AMM 33-51.OPS CK GOOD. - [SDR DALA2024020901836](https://openairdocs.org/sdr/DALA2024020901836), Jan 10, 2024: SWITCH. INOPERATIVE. SHIP 3959 -ATB- DUE TO THE RIGHT FORWARD AND AFT OVER-WING EMERGENCY EXIT LIGHTS ILLUMINATED. CORRECTIVE ACTION: PERFORMED PSEU BITE CHECK. FOUND FAULT 52-72008 - [SDR DALA2023111309292](https://openairdocs.org/sdr/DALA2023111309292), Nov 12, 2023: UNKNOWN. UNKNOWN. (LOG 5013022) ON APU AT GATE PACK ODOR WAS EXPERIENCED ON ARRIVAL. COMPLIED WITH 737 AMM 21-00-01-100-801. DUCT BURNOUT AND REPLACED RECIRC FILTERS PER AMM 21-2 - [SDR DALA2023050803556](https://openairdocs.org/sdr/DALA2023050803556), May 7, 2023: UNKNOWN. UNKNOWN. SHIP 3959 - FUME - DECLARED EMERGENCY INTO ATL DUE TO A CABIN ALTITUDE ALERT AND A STRONG FUEL ODOR PRESENT IN THE CABIN AFTER APU STARTED AT FL170 TO SUPPLEMEN - [SDR DALA2023032202193](https://openairdocs.org/sdr/DALA2023032202193), Mar 19, 2023: BUSS. ODOR. (LOG 8800844) EQUIPMENT COOLING EXHAUST NORM OFF LIGHT ILLUMINATED SMELLED SMOKE IN FLIGHT DECK OVHT HORN SOUNDED DURING TAXI OUT. RMVD AX POWER BREAKER PER B73 ## 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.