N670NK

AIRBUS A321-231 · 2016 · Fixed-wing multi-engine · 2 engines · 379 seats · Valid Registration

Registered owner: SPIRIT AIRLINES LLC, FL (owner ≠ operator)

Operators of this aircraft

Who operated this tail, and how firmly we know it.

OperatorRolePeriodBasis
SPIRIT AIRLINES, LLC (GTIA)Operatoron 2025-09-30Operator named in NTSB report

Accident & incident history

Accident · 2025-09-30 Operator named in NTSB report
AIRBUS A321 Serious injury Part 121SPIRIT AIRLINES, LLC

Operated by Spirit Airlines LLC (per NTSB report)

Source: NTSB case DCA25LA341
Accident · 2017-12-06 Operator named in NTSB report
AIRBUS A321 231 Serious injury Part 121SPIRIT AIRLINES, LLC

Operated by SPIRIT AIRLINES INC (per NTSB report)

Source: NTSB case DCA18CA055

Maintenance disclosures

Service Difficulty Reports filed with the FAA for this airframe. Filing is largely voluntary — the number of reports is not a measure of reliability. To verify a report, search its control number at the FAA SDRS site.

38 reports on file, 2017-07-15 – 2026-03-20.

OTHER · 2026-03-20 Matched by certificate designator
ATA 2560

Part: KNOB — MISSING (MEGAPHONE) · airframe 31,290 hrs · 13,922 cycles

FWD MEGA PHONE MISSING VOLUME KNOB. -R&R FWD MEGAPHONE IN REF W/CMM 25-60-01. OPS CHECK GOOD.

Source: SDR GTIA2026032339318
OTHER · 2026-02-09 Matched by certificate designator
ATA 2560

Part: FLASHLIGHT — EXPIRED (ZONE 200) · airframe 53,885 hrs · 24,803 cycles

L1 F/A FLASHLIGHT EXPIRED ( FLASHLIGHT AND HOLDERS (FLIGHT DECK OR CABIN) )-R&R L1 FLASHLIGHT IAW AMM 25-65-00. OPS CK OK. THIS CLEARS DMI 6050544-1. MOC NOTIFIED. PLACARD REMOVED.

Source: SDR GTIA2025021239276
MULTIPLE FAILURE; WARNING INDICATION · 2026-02-09 Matched by certificate designator
ATA 2421

Part: GENERATOR — MULTIPLE FAIL (NR 1) · airframe 30,948 hrs · 13,765 cycles

AIRCRAFT LOST GENERATOR 1 AT 36,000 FT, AC BUSS 1 INOPERATIVE, DC BUSS 1 INOPERATIVE, MULTIPLE FAILURES.

Source: SDR GTIA2026020939275
SMOKE/FUMES/ODORS/SPARKS · 2026-01-10 Matched by certificate designator
ATA 2120

Part: UNKNOWN — ODOR (CABIN) · airframe 30,697 hrs · 13,653 cycles

FUME EVENT - IMMEDIATELY AFTER TAKE OFF THERE WAS A METALL SMELL IN THE COCKPIT ONLY. ELIMINATION OF ODER /FUMES QRH COMPLETED PACK 1 TURNED OFF ODOR DISSIPATED. -REF TSM 05-50-00-810-831-A, INSPECTED ENGINE AND APU OIL. OIL LEVELS OK. INSPECTED A/C BELLY. FOUND NO DEFECTS. PERFORMED LEVEL B DECONTAMINATION IAW AMM 21-00-00. R/R RECIRCULATION FILTER CARTRIDGES IAW AMM 21-21-41. NO ODORS OR FURTHER DEFECTS NOTED AT THIS TIME.

Source: SDR GTIA2026011239243
Earlier reports · 2017–2025 · 34 reports

2025

SMOKE/FUMES/ODORS/SPARKS · 2025-11-13 Matched by certificate designator
ATA 2150

Part: A/C PACK — ODOR (NR 2) · airframe 30,193 hrs · 13,416 cycles

DURING CRUISE FL370 FLIGHT ATTENDANT REPORTED ODOR IN AFT CABIN AND FAINTLY IN FOWARD FWD CABIN.REFERRED TO ODOR CHKLIST. PACK 2 SUSPECTED AND TURNED OFF. 5 MINS LATER F/A CONFIRM ODOR HAD DISSIPATED-PERFORMED TSM 05-50-00-810-831-A, ACCOMPLISHED LEVEL A DECONTAMINATION OF THE ENVIROMENTAL CONTROL SYSTEM IAW AMM 21-00-00-615-802-A, REMOVED AND REPLACED RECIRCULATION FILTER AS PRECATUION IAW AMM 21-21-41.

Source: SDR GTIA2025111339178
SMOKE/FUMES/ODORS/SPARKS · 2025-09-08 Matched by certificate designator
ATA 7200

Part: ENGINE — ODOR (NR 2) · airframe 29,690 hrs · 13,171 cycles

AFTER START OF DESCENT FA'S REPORTED SMELL OF ROTTEN EGGS IN AFT CABIN W/ PACK 2 OFF. DESCRIPTION OF ODOR/FUMES: TEMPORARY, BODY ODOR/BIOHAZRD SMELL. APPARENT CABIN SOURCE: UNKNOWN. MID CABIN AND AFT CABIN. NO VISIBLE SMOKE/HAZE. NO MEDICAL ATTENTION REQUIRED.-C/W TSM 05-50-00-810-831-A FOUND ENG #2 AS THE SOURCE PER DECISION TABLE. PERFORMED SUBSTACK 05-50-00-810-085-B TYPE 3. PERFORMED INSPECTION PROCEDURE ON TSM 71-00-00-810-801. NO LEAKS OR DEFECTS NOTED. PERF, LEVEL A DECONTAMINATION IAW AMM 21-00-00-615-802. NO ODOR NOTED. A/C GOOD FOR COUNTINUED SERVICE.

Source: SDR GTIA2025091139071
OTHER · 2025-07-26 Matched by certificate designator
ATA 5330

Part: SKIN PANEL — DENTED (ZONE 100) · airframe 29,297 hrs · 12,982 cycles

DENTS ON EXTERNAL FUSELAGE BTW FR. 8 - 9 AND LH SIDE STRINGER TO LOWER STRINGER RAF-01 3551196-01 CREATED-EVALUATED DENT 1 AND 2 BTW FR8-9 LOWER STRG 28 LH AND FOUND WITHIN LIMITS I.A.W A321 SRM 53-00-11-283-005, THIS REPAIR IS CATEGORY B, INSPECTION THREHOLD FROM TIME OF ADL / REPAIR EMBODIMENT 60000 FC / 120000 FH.

Source: SDR GTIA2025072839017
OTHER · 2025-07-26 Matched by certificate designator
ATA 5730

Part: SKIN PANEL — CORRODED (ZONE 500) · airframe 29,297 hrs · 12,982 cycles

CORROSION LOWER SURFACE LOCATED RIB27 AFT AREA ON LH WING RAF-01 3551193-01 GENERATED-PERFORMED PERMANENT REPAIR LOC. LOWER SURFACE LOCATED RIB 27 AFT AREA ON LH WING IAW A321 EA #57-0078-25 THIS REPAIR IS CATEGORY B INSPECTION IS REQUIRED AT THRESHOLD 66100 F/C / 132200 FH

Source: SDR GTIA2025072839019
OTHER · 2025-07-26 Matched by certificate designator
ATA 5330

Part: SKIN — NO DISCREPANCY (ZONE 100) · airframe 29,297 hrs · 12,982 cycles

EXISTING RE-WORK EXTERNAL SKIN LOCATED FR23 TO FR24 BTW STR 41L TO STR 42L AT LOWER FUSELAGE. RAF-01 3336958-01-PERFORMED PERMANENT REPAIR ON EXTERNAL SKIN LOCATED FR.23 TO FR.24 BTW STR 41L TO STR 42L AT LOWER FUSELAGE IAW EA #53-00-45-25 AIRBUS PROVIDED AN INTERIM APPROVAL WITH NO SPECIFIC REPAIR CATEGORY VALID FOR 6 MONTHS

Source: SDR GTIA2025072839018
SMOKE/FUMES/ODORS/SPARKS · 2025-02-01 Matched by certificate designator
ATA 2530

Part: COFFEEMAKER — ODOR (ZONE 900) · airframe 28,012 hrs · 12,368 cycles

FA TURNED ON AFT COFFEE POT AND SMELLED ELECTRICAL, COFFEE MAKER WAS HOT ( COFFEE MAKERS )-R&R COFFEE MAKER IAW CMM 25-35-01 OPS CHECK GOOD PLACARD REMOVE MOC NOTIFIED THIS CLEAR NEF 3612221

Source: SDR GTIA2025020338716

2024

SMOKE/FUMES/ODORS/SPARKS · 2024-11-21 Matched by certificate designator
ATA 2150

Part: A/C PACK — ODOR (NR 2) · airframe 27,368 hrs · 12,065 cycles

FOUL ODOR FROM AIR CONDITIONING. SMELL DISSAPATED WITH PACK 2 OFF ( PACKS A321 WITHOUT MOD. 157080/MP K17996 (PACK FLOW SELECTOR) AND WITH MOD. 30626/ MP K6443 (ENHANCED ECS) )--

Source: SDR GTIA2024112238545
SMOKE/FUMES/ODORS/SPARKS · 2024-08-12 Matched by certificate designator
ATA 2120

Part: UNKNOWN — ODOR (CABIN) · airframe 26,433 hrs · 11,620 cycles

FA IN AFT CABIN REPORTED STRONG ODOR FROM CABIN AIR-PERFORMED TSM 05-50-00-810-831-A FOR IDENTIFICATION OF THE CAUSE OD AQE. FOUND PROBABLE CAUSE DUE TO TYPE 10 FROM AMBIENT AIR. NO ODOR SMOKE,OR FUME WAS PRESENT WHEN MX WENT ON BOARD. A/C OK FOR CONT. SVC

Source: SDR GTIA2024081238308
NO TEST · 2024-04-27 Matched by certificate designator
ATA 3350

Part: BATTERY — WARNING MESSAGE (EMERGENCY LIGHTS) · airframe 25,457 hrs · 11,166 cycles

BAT/EPSU (14WL) MID R CLASS 1 FAULT MESSAGE.-REMOVED AND REPLACED BATTERY OF THE EMERGENCY POWER SUPPLY(14WL) IAW AMM 33-51-38. OPS CHECK GOOD AT THIS TIME.

Source: SDR GTIA2024042838093
WARNING INDICATION · 2024-01-29 Matched by certificate designator
ATA 2780

Part: SLAT SYSTEM — FAULTED (LE SLATS) · airframe 24,650 hrs · 10,802 cycles

SLATS FAULT, EMERGENCY LANDING, REOCCURING ITEM, PAGE 3499089-APPLIED TSM 27-81-00-810-810-A.FOUND FIN 6035CM POPPED R&R IAW AMM 27-84-49 OPS CHECK GOOD.NO FURTHER DEFECTS NOTED AT THIS TIME

Source: SDR GTIA2024020237821
SMOKE/FUMES/ODORS/SPARKS · 2024-01-15 Matched by certificate designator
ATA 2120

Part: UNKNOWN — ODOR (UNKNOWN) · airframe 24,565 hrs · 10,763 cycles

FUME EVENT ON DESCENT THROUGH 3000 SPIRIT AIRLINES AIR QUALITY REPORTING FORM COMPLETED . -PERFORMED TSM 05-50-810-831,ISOLTED EACH ENGINE AND EACH PACK SEPERATLY,INSPECTED APU, NO LEAK FROM DE-OILERS, NO GLYCOL VISBLE.COULD NOT CONFIRM SOURCE OF SMELL/FUMES.RAN EACH ENGINE 10 MINUTES AND APU APU BLEED ALONE,NO FAULTS,OK FOR SVC

Source: SDR GTIA2024011937780
SMOKE/FUMES/ODORS/SPARKS · 2024-01-08 Matched by certificate designator
ATA 2150

Part: A/C PACK — ODOR (UNKNOWN) · airframe 24,496 hrs · 10,733 cycles

FOUL SMELL COMING FROM PACK #1 DURING DECENT FROM 15000 FT TO SEA LEVEL.-PERFORMED TSM 05-50-00-810-831-A. SLIGHT SCENT FROM PACK 1 DETERMINED, REFER TO LP 3291930-2

Source: SDR GTIA2024011037756
SMOKE/FUMES/ODORS/SPARKS · 2024-01-06 Matched by certificate designator
ATA 2150

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 24,482 hrs · 10,725 cycles

FUME EVENT DESCENDING OUT OF 25,000. TURNED OFF PACK 1 AND SMELL WENT AWAY FLIGHT ATTENDENT REPORTED SMELL ALL THROUGHOUT THE CABIN -PERFORMED #1 PACK BURNOUT, FOUND STILL BE CONTAMINATED PER AMM 21-0-00-615-802-A. SEE LOG 3291923-2 FOR PACK 1 DMI.

Source: SDR GTIA2024010737744

2023

OTHER · 2023-12-17 Matched by certificate designator
ATA 2781

Part: SLAT SYSTEM — WARNING MESSAGE (SLATS) · airframe 24,285 hrs · 10,636 cycles

F/CTL SLATS FAULT SLATS <1 LANDED CONF 3-PERFORMED INSPECTION OF SLAT SYSTEM IAW TSM 27-81-00 WITH NO DEFECTS NOTED APPLIED GREESE TO SLAT TRACKS AND OPS CHECK IAW AMM 27-81-00 NO DEFECTS NOTED

Source: SDR GTIA2023121937705
SMOKE/FUMES/ODORS/SPARKS · 2023-09-14 Matched by certificate designator
ATA 2100

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 23,371 hrs · 10,225 cycles

FA REPORTED SMELL IN CABIN ON APPROACH-OPERATED PACKS PER AMM 21-52-00 RAN PACKS FOR 30MIN NO ODOR DETECTED

Source: SDR GTIA2023091637482
OTHER · 2023-07-02 Matched by certificate designator
ATA 7930

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 22,666 hrs · 9,925 cycles

ON TAKEOFF ENG 2 OIL PULSING 6.1 -6.2 QTS _RETURN PRECAUTIONARY--CREW REPORTED WHEN DEPART FROM GATE HAD 14 QTS AFTER LANDING HAD 14 QTS SHOWING SHOWING INDICATION . SERVICED 9 QTS OF OIL IAW AMM 12-13-79 TO PROPER LEVEL . NO EVIDENT OF OIL LEAKED ON #2 ENGINE OK FOR CONTINUED SERVICED.

Source: SDR GTIA2023070337304
OTHER · 2023-06-29 Matched by certificate designator
ATA 2560

Part: MEGAPHONE — DAMAGED (ZONE 900) · airframe 22,632 hrs · 9,913 cycles

FORWARD MEGAPHONE - VOL KNOB MISSING-R/R FWD MEGAPHONE IAW SPIRIT AIRLINES EMERGENCY EQUIPMENT DRAWING # A321-EMER EQUIP REV 3. OPS CHECK GOOD.

Source: SDR GTIA2023062937298
SMOKE/FUMES/ODORS/SPARKS · 2023-04-19 Matched by certificate designator
ATA 5100

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 21,979 hrs · 9,621 cycles

FUME EVENT DIRTY SOCK/WET DOG SMELL IN MID AND AFT CABIN CRUISE. AFTER SLECTINGPACK #1 OFF. ODOR SUSPECTED FOR PACK#1 .-PERFORMED ISOLATION OF PACK#1 AND PACK#2 USING ENG BLEED OPERATION I.A.W TSM 05-50-00 AND AMM 71-00-00. FOUND PACK#1 TO BE SOURCE OF CONTAMINATION. PACK #1 DEACTIVATED. A/C OK FOR CONTINUED SVC. REF LOGPAGE 3041478 ITEM#2 FOR MEL RELIEF.

Source: SDR GTIA2023042037127
OTHER · 2023-03-14 Matched by certificate designator
ATA 2781

Part: ACTUATOR — OVERTORQUED (SLAT #9) · airframe 21,628 hrs · 9,452 cycles

F/CTL SLATS ECAM FAULT / LOCKED ON APPROACH-FOUND #9 TRACK ACTUATOR OVER TORQUE INDICATOR ON LH WING. R&R #9 TRACK SLAT ACTUATOR IAW AMM 27-84-49 OPS CHECK GOOD

Source: SDR GTIA2023031637045

2022

OTHER · 2022-07-15 Matched by certificate designator
ATA 5210

Part: DOOR — DAMAGED (ZONE 800) · airframe 19,441 hrs · 8,400 cycles

REF GWI 2832610. DAMAGE TO L1 DOOR LWR PORTION DUE TO JET BRIDGE IMPACT. RAF-01 2808289-01 GENERATED.-REMOVED DAMAGED DOOR SKIN L-1 DOOR LOWER IAW A321 AMM 52-10-00-300-005 FIG 001, FABBED REPAIR DOUBLER IAW A321 SRM 52-10-00-300-005 FIG 001 AND INSTALLED REPAIR IAW A321 SRM 52-10-00-300-005 FIG 001. THIS IS CAT B REPAIR REQ REINSPECT AT 60,000 FC. FH NOT RELEVANT PER SRI 52-10-00-205-011

Source: SDR GTIA2022071536532

2021

WARNING INDICATION · 2021-09-02 Matched by certificate designator
ATA 2133

Part: OUTFLOW VALVE — FLUCTUATES (CABIN PRESSURE) · airframe 16,766 hrs · 7,188 cycles

IMMEDIATELY AFTER TAKEOFF THE CABIN V/S WAS ERRATIC FROM -900 TO +900FPM. THE OUTFLOW VALVE FLUCTUATED ERRATICALLY FROM PARTIALLY OPEN TO A LITTLE OVER QUATER OPEN RAPIDLY AND THERE WAS A CYCLE CONSISTING OF MUCH AC AIR TO VERY LITTLE AC AIR WITH PAIN TO THE ECIS UP TO FL180.--

Source: SDR GTIA2021090335972
OTHER · 2021-04-17 Matched by certificate designator
ATA 2560

Part: BOTTLE — LOW PRESSURE (L1 DOOR ASSIST) · airframe 15,547 hrs · 6,668 cycles

L1 DOOR ASSIST ACCUMULATOR REQUIRES SERVICE-L1 DOOR ACCUMULATOR WAS SERVICED IAW AMM 52-10-00

Source: SDR GTIA2021041935690

2020

OTHER · 2020-12-14 Matched by certificate designator
ATA 2560

Part: BOTTLE — LOW PRESSURE (DOOR ASSIST) · airframe 14,461 hrs · 6,225 cycles

L2 AND R3 DOOR ASSIST BOTTLES LOW. SERVICED DOOR ASSIST BOTTLES FOR L2 AND R3 DOORS, IAW AMM 52-22-00.

Source: SDR GTIA2020121435502
OTHER · 2020-07-04 Matched by certificate designator
ATA 2560

Part: MEGAPHONE — MISSING (CABIN) · airframe 13,283 hrs · 5,722 cycles

FWD MEGAPHONE MISSING. INSTALLED MEGAPHONE IAW AMM 25-65-00. OPS CK GOOD.

Source: SDR GTIA2020070635230

2019

SMOKE/FUMES/ODORS/SPARKS · 2019-11-21 Matched by certificate designator
ATA 2120

Part: UNKNOWN — ODOR (CABIN) · airframe 11,795 hrs · 5,073 cycles

F/A'S REPORTED ODOR IN THE CABIN DURING CLIMB (25,000 FT) TURNED OFF PACK 2 SMELL DISAPPEARED ( PACKS A321 WITH MOD. 31283/MP P7125 (FWC H2-F1 STND) AND WITH MOD. 30626/ MP K6443 (ENHANCED ECS) - FAULT CAUTIONS ASSOCIATED WITH OPERATIVE SIDE NOT DISPLAYED )--

Source: SDR GTIA2019112134806
OTHER · 2019-10-30 Matched by certificate designator
ATA 2560

Part: MEGAPHONE — INOPERATIVE (FWD CABIN) · airframe 11,630 hrs · 5,002 cycles

FOUND FWD MEGAPHONE INOP -R & R FWD MEGAPHIONE IAW AMM 25-65-51. OPS CHECK IS GOOD.

Source: SDR GTIA2019103104750
OTHER · 2019-09-02 Matched by certificate designator
ATA 2560

Part: MEGAPHONE — DAMAGED (CABIN) · airframe 11,075 hrs · 4,753 cycles

FWD MEGAPHONE FOUND DAMAGED. R&R FWD MEGA PHONE IAW AIRCRAFT DRAWING EMER EQUIP LAYOUT. OPS CHECK GOOD AT THIS TIME.

Source: SDR GTIA2019090234593
SMOKE/FUMES/ODORS/SPARKS · 2019-06-10 Matched by certificate designator
ATA 2120

Part: UNKNOWN — ODOR (COCKPIT/CABIN) · airframe 10,220 hrs · 4,381 cycles

DIRTY SOCK SMELL IN COCKPIT & FWD CABIN PRIOR TO LANDING. TURNED OFF PACK #1 PER COM PROCEDURE AND SMELL DISIPATED-INSPECTED BOTH ENGINES NO EVIDENCE OF HYDRAULIC LEAKEGE OR OIL LEAKS. THE FUSELAGE WAS INSPECTED NO EVIDENCE OF CONTAMINATION ON THE AIR INLETSAND IN THE APU INLET. PERFORMED OPS TEST OF THE PACKS NO ODOR OR SMELL NOTED IAW AMM 05-50-00

Source: SDR GTIA2019061003407
SMOKE/FUMES/ODORS/SPARKS · 2019-06-09 Matched by certificate designator
ATA 2120

Part: UNKNOWN — ODOR (CABIN) · airframe 10,218 hrs · 4,380 cycles

DIRTY SOCK SMELL MID CABIN -TURNED ON BLEED AIR DUE TEMP BEING OVER 90F DEGREES, RUN PACKS FOR 15 MIN IAW AMM 21-63-00. NO ODOR NOTED ALL SYSTEM NORMAL

Source: SDR GTIA2019061093403
SMOKE/FUMES/ODORS/SPARKS · 2019-06-06 Matched by certificate designator
ATA 2120

Part: UNKNOWN — ODOR (CABIN) · airframe 10,184 hrs · 4,366 cycles

FA'S REPORTED FOUL SMELL IN CABIN-PERFORMED TEST ALL TESTED NORMAL IAW AMM 5-50-00-810-813-A A/C OK FOR SERVICE

Source: SDR GTIA2019060603392
SMOKE/FUMES/ODORS/SPARKS · 2019-01-02 Matched by certificate designator
ATA 2120

Part: UNKNOWN — ODOR (CABIN) · airframe 8,486 hrs · 3,640 cycles

AFT FLIGHT ATTENDANT SMELLED ELECTRICAL ODOR FROM ROW 17 TO AFT OF AIRCRAFT SHORTLY AFTER TAKEOFF. REF TO TSM 24-00-00-810-823-A FOUND NO EVIDENT OF CABIN ELECTRICAL SMELL OR NO ECAM MAKING MESSAGE. AIRCRAFT OK FOR SERVICE.

Source: SDR GTIA2019010203064

2018

OTHER · 2018-11-25 Matched by certificate designator
ATA 2560

Part: BOTTLE — LOW PRESSURE (R2 DOOR ASSIST) · airframe 8,118 hrs · 3,483 cycles

R2 DOOR ASSIST BOTTLE REQUIRE SERVICE-SERVICED R2 DOOR ASSIST BOTTLE IAW AMM 52-10-00 LEAK CK GOOD

Source: SDR GTIA2018112652977
SMOKE/FUMES/ODORS/SPARKS · 2018-01-03 Matched by certificate designator
ATA 2120

Part: UNKNOWN — ODOR (CABIN) · airframe 4,715 hrs · 2,021 cycles

DURING DESCENT AT 5000 FT, SMELLED AN ODOR, BOTH PACKS WERE ON THRUST IDLE. FLIGHT ATTENDANTS REPORTED STRONGER ODORS FROM FORWARD AND MID CABIN. CONTINUED. ONE FLIGHT ATTENDANT REPORTED FEELING NAUSEATED ON LANDING. PERFORMED WALKAROUND AND AIR PACK ISULATION PROCEDURE, FOUND NO CABIN ODOR IAW TSM 05-50-00-810-831-A. ACFT OK TO SERVICE.

Source: SDR GTIA2018010302327

2017

WARNING INDICATION · 2017-07-15 Matched by certificate designator
ATA 2130

Part: DUCT — DAMAGED (CABIN PRESSURE) · airframe 2,999 hrs · 1,303 cycles

AIR RETURN FOR CABIN PRESSURE, OUTFLOW VALVE FAULT MESSAGE IN FLIGHT. DURING TAKEOFF, THE ACFT DID NOT PRESSURIZE . INSPECTED EXTRACTION DUCTING IN AVIONICS COMPARTMENT AND FOUND DUCTING DAMAGED. R & R BOTH DAMAGED DUCTS IAW AMM 21-26-42 RAN AEVC TEST IAW AMM 21-26-00 TESTED GOOD

Source: SDR GTIA2017071502084