# N939DZ: Boeing 737-9GPER - Status: Valid registration - Airframe: [Boeing 737-9GPER](https://openairdocs.org/model/boeing-737-9gper) (registry code 13844FN, 191 seats) - Serial number: 38720 - Type: Fixed wing multi engine - Engine type: Turbo-fan - Certificate issued: November 21, 2022 - Expires: November 30, 2029 - Mode S code: AD077B - 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=939DZ - Page: https://openairdocs.org/aircraft/N939DZ 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. ## ADs that may apply (OpenAirDocs): 0 in force ### Matched by airframe (Boeing 737-9GPER) None in force. ## Information bulletins (advisory) None matched. ## NTSB investigations None matched to N939DZ. ## FAA accident and incident reports None matched to N939DZ. ## Service difficulty reports (56, newest 50) 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 DALA2026031801868](https://openairdocs.org/sdr/DALA2026031801868), Mar 16, 2026: A/C PACK. FAULTED. DUE TO CAB ALT LIGHT ILLUMINATED ON DESCENT. AIRCRAFT WOULD NOT MAINTAIN CABIN PRESSURE. RIGHT PACK ON MEL. REPLACED RIGHT PACK TCV FOR MEL. FAILED SINGLE PACK - [SDR DALA2026021601055](https://openairdocs.org/sdr/DALA2026021601055), Feb 14, 2026: SKIN. DAMAGED. TWO LIGHTNING STRIKE DAMAGES FOUND ON SKIN AT 1" FWD OF STA: 500I 1" ABOVE STR 25R. REPAIRED PER SRM 53-00-01-2R REPAIR 1. - [SDR DALA2025061904610](https://openairdocs.org/sdr/DALA2025061904610), Jun 14, 2025: FRAME. NOT REPORTED. (LOG 1024462) ACCOMPLISH LEFT HAND STA 727 FRAME INNER CHORD 737 REPAIR SECTION 02. ACCOMPLISHED LEFT HAND STA 727 FRAME INNER CHORD 737 REPAIR SECTION 02 PER W - [SDR DALA2025061904609](https://openairdocs.org/sdr/DALA2025061904609), Jun 14, 2025: FRAME. NOT REPORTED. (LOG 1024465) 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 DALA2024100409676](https://openairdocs.org/sdr/DALA2024100409676), Oct 2, 2024: DOOR SILL. CORRODED. (LOG 0588935) AFT GALLEY DOOR LOWER MAIN SILL / BTW BS 907 AND BS 986.5, RBL 45 / CORROSION AND TOOLING MARKS DAMAGE. ASSOCIATED ER/A 00-608311 ADDED FOR AC 393 - [SDR DALA2024053005660](https://openairdocs.org/sdr/DALA2024053005660), May 30, 2024: LINE. RUPTURED. (LOG 5955100) AFTER LANDING IN GSP NOSE WHEEL STEERING STOPPED WORKING. HYD SYS A HAD ZERO QTY/PRESSURE. RAN QRH 13.3. ATTEMPTED TAXI W/NOSE WHEEL STEERING IN A - [SDR DALA2024012901308](https://openairdocs.org/sdr/DALA2024012901308), Jan 28, 2024: BRAKE ASSY. DAMAGED. SHIP 3939 -BRK/FIRE- DUE TO #3 BRAKE FIRE ON ARRIVAL ATL. CORRECTIVE ACTION: PERFORMED HIGH ENERGY STOP INSPECTION. NO TROUBLE FOUND. REPLACED #3 TIRE AND BRAKE - [SDR DALA2024012200942](https://openairdocs.org/sdr/DALA2024012200942), Jan 19, 2024: TRANSMITTER. INOPERATIVE. SHIP 3939 -UFC/DE- DECLARED EMERGENCY ON APPROACH DUE TO FLAP LOCK-OUT. CORRECTIVE ACTION: FSEU BITE CHECK FAULTED 27-52260 (TE FLAP SNSR R) AND 27-52261 (TE FL - [SDR DALA2023070605457](https://openairdocs.org/sdr/DALA2023070605457), Jul 1, 2023: FAN. DAMAGED. (LOG 4856500) AFTER START OF #2 ENG CREW OBSERVED AN ACRID(ELECTRICAL) BURNING SMELL. CREW RETURNED TO THE GATE. FOUND WXR TRNSCVR FAN GRINDING AND HOT. RPLD FA - [SDR DALA2023070305332](https://openairdocs.org/sdr/DALA2023070305332), Jun 29, 2023: UNKNOWN. UNKNOWN. (LOG 4054582) FLT. CREW REPORTS ELEC. SMELL IN COCKPIT AND CENTER PEDESTAL BACK LIGHTS FLICKERING. INSTALLED NEW CONTROL STAND CONTROL STAND PANEL IAW B737 AMM - [SDR DALA2023052304118](https://openairdocs.org/sdr/DALA2023052304118), May 22, 2023: UNKNOWN. UNKNOWN. (LOG 2779033) DURING INSPECTION FOUND CORROSION*** SPOTS ON RH NO3 WINDOW FRAME. REPAIRED CORROSION IAW ERA 608743-14. - [SDR DALA2023052304115](https://openairdocs.org/sdr/DALA2023052304115), May 20, 2023: UNKNOWN. UNKNOWN. (LOG 2776334) DURING INSPECTION FOUND PASSENGER COMPARTMENT, R2 DOOR LOWER INNER CHORD. (MOP SILL) AT WL 208, FROM BS 907 TO BS 980 HAS TOOL MARKS. REPAIRED R2 - [SDR DALA2023052204086](https://openairdocs.org/sdr/DALA2023052204086), May 20, 2023: UNKNOWN. UNKNOWN. (LOG 2776323) PASSENGER COMPARTMENT, R2 DOOR, LOWER INNER CHORD (MOP SILL) HAS CORROSION AT WL 208, BS. 983. REPAIRED R2 DOOR LOWER INNER CHORD (MOP SILL) WL 20 - [SDR DALA2023052204085](https://openairdocs.org/sdr/DALA2023052204085), May 19, 2023: UNKNOWN. UNKNOWN. (LOG 2774713) DURING INSPECTION FOUND CORROSION AND TOOLING MARKS AT MULTIPLE LOCATIONS EXTERNAL SKIN STA 706-663.5 STR 2R-2L UNDERNEATH ADF ANTENNA NO 1. MAINT - [SDR DALA2023052204084](https://openairdocs.org/sdr/DALA2023052204084), May 19, 2023: UNKNOWN. UNKNOWN. (LOG 2774688) DENT ON EXTERNAL SKIN BETWEEN ADF ANTENNA NO1 AND ADF ANTENNA NO2 STA 727 -STR 3R. REPAIRED DENT PER ERA 608119-14 REV ORIGINAL. - [SDR DALA2023052204083](https://openairdocs.org/sdr/DALA2023052204083), May 19, 2023: UNKNOWN. UNKNOWN. (LOG 2774558) DURING INSPECTION FOUND PASSENGER COMPARTMENT, FLOOR BEAM FASTENER HOLES AT WL 208 BS. 927, LBL 10 AND RBL 10 HAS CORROSION. REPAIRED PER ERA 6082 - [SDR DALA2023052504185](https://openairdocs.org/sdr/DALA2023052504185), May 18, 2023: UNKNOWN. UNKNOWN. (LOG 2773575) DURING INSPECTIONS, CORROSION AND TOOLING MARKS DAMAGE WAS FOUND ON THE AFT GALLEY DOOR LOWER MAIN SILL (PN 147A8540-30) BETWEEN BS 907 AND BS 986 - [SDR DALA2023052204082](https://openairdocs.org/sdr/DALA2023052204082), May 18, 2023: UNKNOWN. UNKNOWN. (LOG 2773398) DURING INSPECTION FOUND CORROSION*** ON LH WING FRONT SPAR UPPER RH CORNER WS 564.50 APPROX. (ACCESS PANEL 521 SB). REPAIRED CORROSION PER ERA 608 - [SDR DALA2023051904019](https://openairdocs.org/sdr/DALA2023051904019), May 16, 2023: WEB. CORRODED. (LOG 2770332) DURING INSPECTION FOUND AFT CARGO DOOR THRESHOLD WEB HAS CORROSION IN SEVERAL PLACES AT STA797-847 RBL27 WL160. REMOVED AND REPLACED AFT CARGO DOO - [SDR DALA2023051904016](https://openairdocs.org/sdr/DALA2023051904016), May 16, 2023: WEB. CORRODED. (LOG 2769820) UPON REMOVEL OF SUBTHESHOLD WEB CORROSION WAS FOUND ON VERTICAL WEB STA798, RBL27, WL160-164. REMOVED AND REPLACED VERTICAL WEB FROM STA 798 TO 84 - [SDR DALA2023051603863](https://openairdocs.org/sdr/DALA2023051603863), May 15, 2023: UNKNOWN. UNKNOWN. (LOG 2768319) DURING INSPECTIONS, A DEEP DENT WAS FOUND ON THE FUSELAGE CROWN SKIN (PN 144A3111-52) AT APPROX. BS 719.5, BETWEEN STR-2R AND STR-3R. MAINTENANCE - [SDR DALA2023051603861](https://openairdocs.org/sdr/DALA2023051603861), May 15, 2023: UNKNOWN. UNKNOWN. (LOG 2768556) PER AA5100-0193-01A. RH EXTERIOR FUSELAGE SKIN, FOUND A DENT AT STA 400 + 1.5", S-23R. MAINTENANCE REPAIRED DENT PER ERA 607748-14. - [SDR DALA2023051603860](https://openairdocs.org/sdr/DALA2023051603860), May 15, 2023: FRAME. CORRODED. (LOG 2768141) DURING INSPECTION FOUND AFT CARGO FRAME AT STA 947 LBL10-RBL9 WL 167 HAS CORROSION IN SEVERAL PLACES. REMOVED AND REPLACED FRAME SECTION FROM STR - [SDR DALA2023051203788](https://openairdocs.org/sdr/DALA2023051203788), May 10, 2023: UNKNOWN. UNKNOWN. (LOG 2760540) DURING INSPECTION FOUND AFT CARGO STRINGER CLIP AT STR 25R ON AFT SIDE OF FRAME AT STA 947 RBL17 WL167 HAS CORROSION. REPLACED STRINGER CLIP AT ST - [SDR DALA2023051203783](https://openairdocs.org/sdr/DALA2023051203783), May 10, 2023: CHANNEL. CORRODED. (LOG 2760975) DURING INSPECTION FOUND AFT CARGO LH ZEE CHANNEL HAS CORROSION FROM STA 727G-827 LBL21 WL 158. REMOVED AND REPLACED AFT CARGO L/H ZEE CHANNEL FROM - [SDR DALA2023051203782](https://openairdocs.org/sdr/DALA2023051203782), May 10, 2023: UNKNOWN. UNKNOWN. (LOG 2760514) DURING INSPECTION FOUND PASSENGER COMPARTMENT, SEAT TRACK AT WL 208, LBL 25 FROM BS 480 TO BS 520 HAS NUMEROUS WEAR MARKS. REPAIRED SEAT TRACK ON - [SDR DALA2023051103738](https://openairdocs.org/sdr/DALA2023051103738), May 9, 2023: UNKNOWN. UNKNOWN. (LOG 2759220) DURING INSPECTIONS, A DENT BETWEEN STR 22R AND STR 23R AT APPROX. BS 403.5 AND A PREVIOUS BLEND COMMON TO A DENT BETWEEN STR 23R AND STR 24R AT AP - [SDR DALA2023051103735](https://openairdocs.org/sdr/DALA2023051103735), May 8, 2023: BAFFLE. CRACKED. (LOG 2757550) DURING INSPECTION FOUND AFT CARGO COMPARTMENT FLOOR BAFFLE STA 927-947 RBL 15 CRACKED. REMOVED AND REPLACED BAFFLE AT STA 927-947 RBL 15 IAW B737 - [SDR DALA2023051103734](https://openairdocs.org/sdr/DALA2023051103734), May 8, 2023: CHANNEL. CORRODED. (LOG 2757505) DURING INSPECTION FOUND AFT CARGO RH ZEE CHANNEL HAS CORROSION AT STA 867-887+4" RBL22 WL164. REMOVED AND REPLACED AFT CARGO ZEE CHANNEL R/H SIDE - [SDR DALA2023051103733](https://openairdocs.org/sdr/DALA2023051103733), May 8, 2023: SUPPORT FITTING. CORRODED. (LOG 2757440) DURING INSPECTION FOUND FWD CARGO AFT BULKHEAD LOWER SUPPORT HAS CORROSION AT STA 500L LBL 24 WL 158. REMOVED AND REPLACED FWD CARGO AFT BULKHEAD - [SDR DALA2023051103732](https://openairdocs.org/sdr/DALA2023051103732), May 8, 2023: SHIELD. CORRODED. (LOG 2757405) DURING INSPECTION FOUND AFT CARGO SHIELD FWD OF CARGO DOOR HAS CORROSION IN SEVERAL PLACES AT STA767-797 RBL23 WL160. REMOVED AND REPLACED AFT CAR - [SDR DALA2023050803552](https://openairdocs.org/sdr/DALA2023050803552), May 5, 2023: CHANNEL. CORRODED. (LOG 2752802) DURING INSPECTION FOUND LH FWD CARGO ZEE CHANNEL HAS CORROSION FROM STA 480 - 500L LBL 24 WL 158. REMOVED REPLACED L/H FWD CARGO ZEE CHANNEL STA 4 - [SDR DALA2023050503505](https://openairdocs.org/sdr/DALA2023050503505), May 4, 2023: UNKNOWN. UNKNOWN. (LOG 2751203) DURING INSPECTION FOUND PASSENGER COMPARTMENT, WL 208 L1 DOOR LOWER INNER CHORD FROM BS 303 TO BS 323 HAS CORROSION. REMOVED CORRODED INNER CHORD - [SDR DALA2023050503502](https://openairdocs.org/sdr/DALA2023050503502), May 3, 2023: DOOR SILL. CORRODED. (LOG 2749868) DURING INSPECTION FOUND PASSENGER COMPARTMENT, L2 DOOR LOWER INNER CHORD (MOP SILL) AT WL 208 FROM BS. 961 TO BS. 988 HAS CORROSION. REMOVED AND R - [SDR DALA2023050503501](https://openairdocs.org/sdr/DALA2023050503501), May 3, 2023: INTERCOSTAL. CORRODED. (LOG 2749802) DURING INSPECTION FOUND CORROSION ON AFT CARGO COMPARTMENT INTERCOSTAL STA 927-947 RBL 3, WL 166. REMOVED AND REPLACED AFT CARGO COMP. INTERCOSTAL - [SDR DALA2023050503500](https://openairdocs.org/sdr/DALA2023050503500), May 3, 2023: INTERCOSTAL. CORRODED. (LOG 2749788) DURING INSPECTION FOUND AFT CARGO INTERCOSTAL AT STA 927-947 LBL3 WL166 HAS CORROSION IN SEVERAL SPOTS. REMOVED AND REPLACED AFT CARGO INTERCOSTAL - [SDR DALA2023050503499](https://openairdocs.org/sdr/DALA2023050503499), May 3, 2023: INTERCOSTAL. CORRODED. (LOG 2749775) DURING INSPECTION FOUND CORROSION ON AFT CARGO COMPARTMENT INTERCOSTAL STA 927-947 RBL 13, WL 166. REMOVED AND REPLACED AFT CARGO COMP. INTERCOSTA - [SDR DALA2023050503498](https://openairdocs.org/sdr/DALA2023050503498), May 3, 2023: CHANNEL. CORRODED. (LOG 2749666) DURING INSPECTION FOUND RH FWD CARGO ZEE CHANNEL HAS CORROSION FROM STA 500A - 500J RBL 24 WL 158. REMOVED AND REPLACED R/H FWD ZEE CHANNEL STA 40 - [SDR DALA2023050403480](https://openairdocs.org/sdr/DALA2023050403480), May 1, 2023: UNKNOWN. UNKNOWN. (LOG 2746679) DURING INSPECTION FOUND AFT CARGO RH ZEE CHANNEL HAS CORROSION FROM STA 727B-767 RBL21 WL 158. REMOVED, FABRICATED, AND INSTALLED ZEE CHANNEL FS 7 - [SDR DALA2023050203408](https://openairdocs.org/sdr/DALA2023050203408), Apr 28, 2023: SEAT TRACK. WORN. (LOG 2742266) DURING INSPECTION FOUND PASSENGER COMPARTMENT, SEAT TRACK AT WL 208, RBL 45 FROM BS 360 TO BS 480 HAS NUMEROUS WEAR MARKS. REMOVED DAMAGED SEAT TR - [SDR DALA2023042703302](https://openairdocs.org/sdr/DALA2023042703302), Apr 26, 2023: UNKNOWN. UNKNOWN. (LOG 2738558) DURING INSPECTION FOUND AFT CARGO BOTTOM SIDE OF FLOOR BEAM AT STA 947 RBL 10 WL202 HAS CORROSION. COMPLIED WITH ER/A 607863-14 REV ORIGINAL. - [SDR DALA2023042703298](https://openairdocs.org/sdr/DALA2023042703298), Apr 25, 2023: UNKNOWN. UNKNOWN. (LOG 2737396) DURING INSPECTION FOUND PASSENGER COMPARTMENT, FLOOR BEAM UPPER SURFACE AT WL 208, BS 520, FROM LBL 24.82 TO RBL 24.82 HAS WEAR MARKS. COMPLIED WI - [SDR DALA2023042703296](https://openairdocs.org/sdr/DALA2023042703296), Apr 25, 2023: WEB. CORRODED. (LOG 2737080) DURING INSPECTION FOUND FWD CARGO DOOR THRESHOLD WEB HAS CORROSION FROM STA 440-480 RBL 29 WL158. REMOVED AND REPLACED FWD CARGO DOOR THRESHOLD IA - [SDR DALA2023042703295](https://openairdocs.org/sdr/DALA2023042703295), Apr 25, 2023: SEAT TRACK. CORRODED. (LOG 2737008) DURING INSPECTION FOUND PASSENGER COMPARTMENT, WL 208, BS 370 TO 374 RBL 22.8 SEAT TRACK HAS CORROSION. REMOVED SEAT TRACK AT STA 368-480 RBL 25 I - [SDR DALA2023042703292](https://openairdocs.org/sdr/DALA2023042703292), Apr 24, 2023: WEB. CORRODED. (LOG 2735274) DURING INSPECTION FOUND PASSENGER COMPARTMENT, WEB HAS CORROSION AT WL 208, BS. 987 RBL 25. REMOVED AND REPLACED WEB AT PASSENGER COMPARTMENT BS 9 - [SDR DALA2023042703291](https://openairdocs.org/sdr/DALA2023042703291), Apr 24, 2023: INTERCOSTAL. CORRODED. (LOG 2735149) DURING INSPECTION FOUND PASSENGER COMPARTMENT, WL 208, LBL 12 INTERCOSTAL BETWEEN BS. 294.5 AND BS 312 HAS CORROSION. REMOVED DAMAGED INTERCOSTAL - [SDR DALA2023042403180](https://openairdocs.org/sdr/DALA2023042403180), Apr 21, 2023: UNKNOWN. UNKNOWN. AIRCRAFT 3939, ASSENGER COMPARTMENT, R1 DOOR LOWER INNER CHORD AT WL 208 FROM BS 332 TO BS 360 RBL 56 HAS TOOLS MARKS. CORRECTIVE ACTION: INSTALLED EWIS PROTECT - [SDR DALA2023042403179](https://openairdocs.org/sdr/DALA2023042403179), Apr 20, 2023: UNKNOWN. UNKNOWN. AIRCRAFT 3939, PASSENGER COMPARTMENT, FLOOR SUPPORT HAS CORROSION AT WL 208, BS . 951, LBL 47. CORRECTIVE ACTION: REMOVED DAMAGED FLOOR SUPPORT FROM PASSENGER C - [SDR DALA2023042103151](https://openairdocs.org/sdr/DALA2023042103151), Apr 20, 2023: UNKNOWN. UNKNOWN. AIRCRAFT 3939, PASSENGER COMPARTMENT, FLOOR SUPPORT HAS CORROSION AT BS. 951, LBL 51. CORRECTIVE ACTION: REMOVED DAMAGED FLOOR SUPPORT FROM PASSENGER COMPARTMEN - [SDR DALA2023042103150](https://openairdocs.org/sdr/DALA2023042103150), Apr 20, 2023: UNKNOWN. UNKNOWN. AIRCRAFT 3939, PASSENGER COMPARTMENT, FLOOR SUPPORT HAS CORROSION AT WL 208, BS . 951, RBL 25. CORRECTIVE ACTION: REMOVED DAMAGED FLOOR SUPPORT FROM PASSENGER C All 56: https://openairdocs.org/aircraft/N939DZ/reports.md ## STCs that may be installed (OpenAirDocs) None matched to this aircraft's models. ## Related - Other Boeing 737-9GPER aircraft: https://openairdocs.org/model/boeing-737-9gper/aircraft.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.