# JASC 2830: Fuel Dump System

- Type: JASC system/component code (FAA)
- ATA chapter: 28 Fuel
- Title in the code table: FUEL DUMP SYSTEM
- Service difficulty reports: 125
- FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=28
- Page: https://openairdocs.org/jasc/2830

## What it covers

The system and components that provide for the jettison of fuel overboard during flight. Typical parts are valve, switch, dump chute, etc.

## Service difficulty reports (125, newest 50)

- [SDR 9WGA2026040925801](https://openairdocs.org/sdr/9WGA2026040925801), Apr 9, 2026: Boeing 74747UF. PUMP. CORRODED. FUEL OVERRIDE JETTISON PUMP CENTER TANK-RIGHT M225 BEHIND OF THE BONDING JUMPER WAS FOUND CORROSION OF STRUCTURE. REPAIR (N258SN)
- [SDR 9WGA2026032335602](https://openairdocs.org/sdr/9WGA2026032335602), Sep 3, 2025: Boeing 747446. PUMP. CORRODED. DURING HEAVY MAINTENANCE CHECK EVIDENCE OF CORROSION AROUND RIGHT CENTER TANK JETTISON PUMP. WORK ACCOMPLISHED IAW AGREE (N356KD)
- [SDR HALA20250702204](https://openairdocs.org/sdr/HALA20250702204), Jul 1, 2025: Airbus A330243. ACTUATOR. FAULTED. ETOPS - A/C WONT TAKE FUEL. BITE TEST OF FCMC + FUEL VALVES TEST FAULTS LH FUEL JETTISON VALVE ACTUATOR. REMOVED OF LH F (N379HA)
- [SDR CALA2024050101278](https://openairdocs.org/sdr/CALA2024050101278), Apr 30, 2024: Boeing 7379. VALVE. LEAKING. CREW REPORTED LEAKING STREAM OF FUEL IN FLIGHT FROM UNDERSIDE LH OUTBOARD WING. PICTURE ATTACHED FOUND LEFT SURGE TANK F (N37528)
- [SDR CALA2023011800151](https://openairdocs.org/sdr/CALA2023011800151), Jan 17, 2023: Boeing 777222. CONTROL UNIT. ARCED. FUEL JETT PUMP L EICAS STATUS LEFT JETTISON PUMP COMMANDED ON AND LOW PRESSURE. NOTICED IN CRUISE FLT HAS HISTORY. FOUND (N795UA)
- [SDR DXTA2021120652960](https://openairdocs.org/sdr/DXTA2021120652960), Dec 3, 2021: Gulstm. FLOAT VALVE. DEFECTIVE. FUEL DUMP: SHORTLY AFTER TAKEOFF, WITH 27,000 POUNDS OF FUEL ON BOARD, VISIBLE FUEL STREAMING FROM LEFT WING NACA DUCT.  (N421QS)
- [SDR FDEA202010292692](https://openairdocs.org/sdr/FDEA202010292692), Oct 29, 2020: Boeing 777FS2. VALVE. FAILED. PDIS 854 28-30 0702 29OCT20 ANC OPEN U. AFTER DUMPING FUEL. FUEL JET NOZZLE RIGHT ILLUMINATED AND THE RIGHT JET VALVE CO (N854FD)
- [SDR FDEA202002240373](https://openairdocs.org/sdr/FDEA202002240373), Feb 23, 2020: Doug MD11F. SHUTOFF VALVE. FAILED. LEFT FUEL DUMP VALVE DISAG LEVEL 1 ALERT, WHILE DUMPING FUEL. R&R LH FUEL DUMP GATE SHUTOFF VALVE REF AMM 28-30-30-4 , A (N576FE)
- [SDR HALA2020021000031](https://openairdocs.org/sdr/HALA2020021000031), Feb 10, 2020: Airbus A330243. ACTUATOR. FAILED. ETOPS SIGNIFICANT SYSTEM - FUELER'S REPORT END LIGHT FLASHING ON FUEL PANEL. // FUEL VALVES TEST SHOWS JETTISON VALVE 2  (N385HA)
- [SDR P5CA2020021300043](https://openairdocs.org/sdr/P5CA2020021300043), Feb 6, 2020: Boeing 74746NF. CONNECTOR. DAMAGED. DAMAGE: FOUND THE CONNECTOR DAMAGE OF MOTOR-OVRD/JTSN 3 FWD EQUIPMENT NO.M227.(<P>1) IAW SWPM 20-61-11 REV 72 AND WDM 28 (N454PA)
- [SDR AALA201908089012](https://openairdocs.org/sdr/AALA201908089012), Aug 7, 2019: Boeing 777223. DUMP VALVE. LEAKING. AIRCRAFT WAS GROUNDED: MAINTENANCE REPORTS LH WING FUEL DUMP NOZZLE WAS LEAKING FUEL DURING WALK AROUND INSPECTION. REMO (N784AN)
- [SDR ENHA2019F00156](https://openairdocs.org/sdr/ENHA2019F00156), Mar 18, 2019: Cessna 208B. CANISTER. FULL. FUEL SMELL IN COCKPIT. EPA CAN FULL. (N929TG)
- [SDR UIEA2019022503379](https://openairdocs.org/sdr/UIEA2019022503379), Feb 24, 2019: Boeing 7673Y0. ACTUATOR. MALFUNCTIONED. WHILE PERFORMING BOOST OVERRIDE ON A JETTISON PUMP TASK CARD, CHECK FAILED AT STEP C.3, LEFT JETTISON NOZZLE OPENED DURI (N1181A)
- [SDR FDEA201811093162](https://openairdocs.org/sdr/FDEA201811093162), Nov 9, 2018: Boeing 7673S2F. PUMP. LEAKING. PDIS 108 05-50 4154 09NOV18 NRT OPEN U LOGPAGES:2982632 ON CLIMB OUT FL300 SMOKE/FUMES ELECRICAL IN NATURE OBSERVED. DON (N108FE)
- [SDR UIEA2017123002450](https://openairdocs.org/sdr/UIEA2017123002450), Dec 30, 2017: Boeing 767324. WARNING MESSAGE. ILLUMINATED. FUEL JET PUMP EICAS MESSAGE INOPERATIVE. (N645GT)
- [SDR UIEA2017102602114](https://openairdocs.org/sdr/UIEA2017102602114), Oct 26, 2017: Boeing 76731K. PACKING. DETERIORATED. LEFT AND RIGHT JETTISON PUMP HOUSING FOUND SIGN OF FUEL LEAKAGE FROM CONDUIT. NEW PACKING INSTALLED. (N1373A)
- [SDR FDEA201710102897](https://openairdocs.org/sdr/FDEA201710102897), Oct 10, 2017: Boeing 75723A. VALVE. FAILED. ON ARRIVAL, FUEL DUMPING OUT OF DRAIN MAST FOR THE TANK DRAIN, FOUND OUT OF LIMITS IAW AMM. THE NR 2 ENGINE FUEL DRAIN T (N939FD)
- [SDR UIEA2017041400577](https://openairdocs.org/sdr/UIEA2017041400577), Apr 13, 2017: Boeing 74747UF. PUMP. FAILED. STATUS MESSAGE FOR OVERRIDE JETTISON PUMP NR 3 FAILED. REPLACED THE PUMP IAW AMM 28-31-01-004-001-001, REV 88, AND AMM 2 (N409MC)
- [SDR UIEA2017032700413](https://openairdocs.org/sdr/UIEA2017032700413), Mar 24, 2017: Boeing 74747UF. ACTUATOR. FAILED. STATUS MESSAGE 28649, FOR RIGHT CENTER WING JETTISON TRANSFER VALVE FAILED. REMOVED RIGHT CENTER WING TANK JETTISON TRAN (N499MC)
- [SDR UIEA2016121901036](https://openairdocs.org/sdr/UIEA2016121901036), Dec 16, 2016: Boeing 7474J6. TRANSFER VALVE. INOPERATIVE. FOUND RT WING JETTISON TRANSFER VALVE FAILED DURING GROUND TEST IAW AMM 28-31-04-004-001 REV87 AND AMM28-31-04-404-010 R (N747BC)
- [SDR HALA2016072600146](https://openairdocs.org/sdr/HALA2016072600146), Jul 24, 2016: Airbus A330243. VALVE. LEAKING. AIR TURNBACK TO DEPARTURE DUE TO FUEL LEAK FROM RIGHT JETTISON VALVE. REPLACED THE JETTISON VALVE ASSEMBLY IAW AMM 28-31 (N383HA)
- [SDR HALA2016072400301](https://openairdocs.org/sdr/HALA2016072400301), Jul 24, 2016: Airbus A330243. VALVE. UNKNOWN. AIR TURNBACK DUE TO FUEL LEAK FROM RIGHT JETTISON VALVE. REMOVED AND REPLACED THE VALVE JETTISON ASSY IAW AMM 28-31-41.  (N383HA)
- [SDR FDEA201606031797](https://openairdocs.org/sdr/FDEA201606031797), Jun 3, 2016: Doug MD1010F. VALVE. FAILED. AFTER FUEL DUMP LT DUMP VALVE FAILED IN OPEN POSITION. R & R FUEL DUMP VALVE IAW 28-30-02. OPERATIONS & LEAK CHECK GOOD. (N571FE)
- [SDR HALA201507010125](https://openairdocs.org/sdr/HALA201507010125), Jul 1, 2015: Airbus A330243. DUMP VALVE. CRACKED. TRIM TANK APPEARS TO HAVE EMPTIED INTO RT TANK ONLY. CROSS FED OUT RIGHT TANK TO REBALANCE. FOUND JETTISON VALVE CRACKED (N384HA)
- [SDR HALA2015052005011](https://openairdocs.org/sdr/HALA2015052005011), May 18, 2015: Airbus A330243. ACTUATOR. FAILED. ACCOMPLISHED AN AIR TURNBACK DUE TO FUEL JETTISON LIGHT ON ECAM. REPLACED FUEL JETTISON VALVE ACTUATOR. REPLACED RT JETT (N395HA)
- [SDR HALA2015051800088](https://openairdocs.org/sdr/HALA2015051800088), May 18, 2015: Airbus A330243. ACTUATOR. MALFUNCTIONED. FUEL JETTISON LIGHT ON, FUEL JETTISON IN PROCESS, ECAM LIGHT. VALVE LOCK AND DUMMY PLUGS INSTALLED IN RT JETTISON. REMOV (N395HA)
- [SDR DXTA2014120805944](https://openairdocs.org/sdr/DXTA2014120805944), Dec 7, 2014: Cessna 750. VALVE. FAILED. FIRST LEG FUEL VENTED BUT STOPPED ON COMPLETING CHECKLIST. SECOND LEG IT STOPPED BUT STARTED VENTING AGAIN SEVERAL TIMES (N975QS)
- [SDR FDEA201409112615](https://openairdocs.org/sdr/FDEA201409112615), Sep 11, 2014: Doug MD1010F. DUMP VALVE. FAILED. RIGHT WING DUMP VLV FAILED TO CLOSE AFTER DUMP TERMINATION. RIGHT FUEL DUMP VLV SYS WIRING CHECKED FROM RT FUEL DUMP VLV (N390FE)
- [SDR HALA2014070400100](https://openairdocs.org/sdr/HALA2014070400100), Jul 4, 2014: Airbus A330243. JETTISON SYSTEM. MALFUNCTIONED. ACFT DIVERTED DUE TO FUEL JETTISON NOT CLOSED, X4, LT TANK FUEL JETTISON VALVE. SHOWED OPENED. (N381HA)
- [SDR CALA2014060300717](https://openairdocs.org/sdr/CALA2014060300717), Jun 3, 2014: Boeing 737724. COMPUTER. FAILED. FLAPS INDICATED UP BUT WERE NOT VERIFIED BY FMC. PERFORMED FLAP CONTROL LEVER POSITION SENSOR SYS TEST CHECK OK IAW AMM2 (N24736)
- [SDR DXTA2014033005706](https://openairdocs.org/sdr/DXTA2014033005706), Mar 30, 2014: Cessna 750. WARNING MESSAGE. FALSE INDICATION. WING TANK O FULL L MESSAGE ILLUMINATED DURING CRUISE. CYCLED ON & OFF REPEATEDLY. THIS WAS FOLLOWED BY FUEL VENTING. MES (N935QS)
- [SDR DXTA2014021005645](https://openairdocs.org/sdr/DXTA2014021005645), Feb 9, 2014: Gulstm GIVXG450. FLOAT VALVE. STUCK. AFTER TAKEOFF FUEL LEAK OUT OF RT WING OTBD LOWER SIDE LOST 800 LBS FUEL IN ABOUT 4 MINUTES. REMOVED RT WING TANK ACCESS (N415QS)
- [SDR CALA2013120293358](https://openairdocs.org/sdr/CALA2013120293358), Nov 29, 2013: Boeing 777222. PUMP. ARCED. CTR LT OVRD JETTISON PUMP PIN C FOUND ARCING. CTR LT OVRD JETTISON PUMP REPLACED IAW B777 AMM 28-22-06 & CONNECTOR DM281 (N784UA)
- [SDR UALA2013050703204](https://openairdocs.org/sdr/UALA2013050703204), Apr 30, 2013: Boeing 777222. VALVE. LEAKING. LEFT JETTISON VALVE LEAKING FUEL DURING REFUEL. REPLACED LEFT WING JETTISON VALVE. OPS AND LEAK CHECKED GOOD. (N211UA)
- [SDR UALA2013020700730](https://openairdocs.org/sdr/UALA2013020700730), Feb 6, 2013: Boeing 777222. ACTUATOR. FAILED. RIGHT JETTISON ISOLATION VALVE IS NOT IN COMMANDED POSITION. STATUS MESSAGE 2812012 ACTIVE. REPLACED RIGHT FUEL JETTISON (N211UA)
- [SDR UALA2012033001996](https://openairdocs.org/sdr/UALA2012033001996), Mar 29, 2012: Boeing 777222. VALVE. LEAKING. LEFT WING JETTISON VALVE LEAKING FUEL ON GROUND. REPLACED LT JETTISON NOZZLE VALVE AND ACTUATOR PER MM. OPS CHECKED GOOD (N776UA)
- [SDR UALA2012032601907](https://openairdocs.org/sdr/UALA2012032601907), Mar 23, 2012: Boeing 777222. SWITCH. DETACHED. JETTISON ARMING SWITCH CAME OFF. REPLACED SWITCH ASSY. VERIFIED JETTISON ARMING FUNCTIONED NORMAL. (N226UA)
- [SDR UALA2012011900419](https://openairdocs.org/sdr/UALA2012011900419), Jan 17, 2012: Boeing 767322. RELAY. FAULTY. ON FUEL DUMP, GET 'L JET XFER VALVE EICAS GET FAULT ON FUEL JETTISON SELECTOR VALVE. TROUBLESHOT PER B767 FIM 26-3-00. R (N675UA)
- [SDR UALA2011071703610](https://openairdocs.org/sdr/UALA2011071703610), Jul 13, 2011: Boeing 777222. ACTUATOR. MALFUNCTIONED. LEFT FUEL JETTISON VALVE LT ILLUMINATED WITH SYSTEM DISARMED. REPLACED LEFT JETTISON VALVE BODY AND ACTUATOR ASSY. (N797UA)
- [SDR FDEA201106052128](https://openairdocs.org/sdr/FDEA201106052128), Jun 5, 2011: Doug MD1010F. RELAY. MALFUNCTIONED. ATTEMPTED TO DUMP FUEL FOR RTB MEM AT APPROX 35K AT START OF DUMP, COULD NOT GET NORMAL DUMP TO OCCUR, EVEN AFTER SELECT (N373FE)
- [SDR UALA2011042101924](https://openairdocs.org/sdr/UALA2011042101924), Apr 20, 2011: Boeing 777222. VALVE. FAULTY. DURING FUELING OPERATION, FOUND FUEL SEEPING FROM LT JETTISON VALVE. VALVE DEF IN CLOSED POS PER MEL. CB COLLARED. NO FU (N796UA)
- [SDR UALA2011041101728](https://openairdocs.org/sdr/UALA2011041101728), Apr 10, 2011: Boeing 777222. PUMP. FAULTY. FUEL JETT PUMP R RIGHT JETTISON PUMP COMMANDED ON AND LOW PRESSURE. STATUS MSG01- LATCHED CLIMB MODE DEPENDENT; R JETTIS (N777UA)
- [SDR DXTA2011011104405](https://openairdocs.org/sdr/DXTA2011011104405), Jan 7, 2011: Raythn 400ARAYTHEON. SHUTOFF VALVE. LEAKING. AFTER TAKEOFF WITH 4000 LBS FUEL (1200 LBS. IN FUSELAGE) AND CLIMBING THROUGH 10,000 FT, LT WING OVER PRESSURE ANNUNCIAT (N140QS)
- [SDR UALA2010122204685](https://openairdocs.org/sdr/UALA2010122204685), Dec 18, 2010: Boeing 767322. PUMP. FAULTY. LEFT CENTER AUX TANK OVERRIDE PUMP. REPLACED LT OVERRIDE & JETTISON PUMPS IAW MM. DID NOT REPLACE SHUTOFF SLEEVES, VERIF (N666UA)
- [SDR UALA2010120804481](https://openairdocs.org/sdr/UALA2010120804481), Dec 8, 2010: Boeing 777222. ACTUATOR. LEAKING. FUEL LEAKING OUT OF LEFT FUEL DUMP MAST. STREAM IS DIAMETER OF PENCIL. PERFORMED TESTED FUEL FUEL JETTISON SYS PER MM. F (N796UA)
- [SDR UALA2010110204066](https://openairdocs.org/sdr/UALA2010110204066), Nov 1, 2010: Boeing 777222. PRESSURE SWITCH. FAULTY. FUEL PUMP CENTER L LEFT CENTER (OVERRIDE) FUEL PUMP SWITCHED ON AND PUMP OUTPUT PRESSURE LOW. ADVISORY MSG-2811015 INACT (N778UA)
- [SDR UALA2010081202948](https://openairdocs.org/sdr/UALA2010081202948), Aug 12, 2010: Boeing 777222. VALVE. LEAKING. AT DEPARTURE, FOUND FUEL DISCHARGE FROM LT FUEL JETTISON MAST. LT FUEL JETTISON SYS, REF MEL, CLOSED AND SAFETY CLOSE VA (N777UA)
- [SDR UALA2010073002750](https://openairdocs.org/sdr/UALA2010073002750), Jul 29, 2010: Boeing 777222. ACTUATOR. FAULTY. EICAS STATUS MSG L JETTISON NOZZLE VALVE. NEED TO REPLACE LT FUEL JETT NOZZLE VLV ACTUATOR. REPLACED LT FUEL JETT NOZZ V (N777UA)
- [SDR UALA2010071202462](https://openairdocs.org/sdr/UALA2010071202462), Jul 10, 2010: Boeing 777222. DUMP VALVE. LEAKING. FUEL DRIPPING FROM LEFT JETTISON VLV NOZZLE AFTER REFUELING. DUE TO RECENT HISTORY, INOPED LEFT JETTISON VLV PER MEL. LE (N213UA)
- [SDR UALA2010070202360](https://openairdocs.org/sdr/UALA2010070202360), Jun 30, 2010: Boeing 767322. ACTUATOR. FAILED. FUEL DUMP TEST FAILED. VALVE LIGHT IN R NOZZLE SW: FAULT LIGHT WHEN JETTISON ON: NO FUEL DUMP. REPLACED RT NOZZLE VALVE  (N669UA)

All 125: https://openairdocs.org/jasc/2830/reports.md

## Other codes in chapter 28

- [JASC 2800](https://openairdocs.org/jasc/2800): Aircraft Fuel System (740 reports)
- [JASC 2810](https://openairdocs.org/jasc/2810): Fuel Storage (3,516 reports)
- [JASC 2820](https://openairdocs.org/jasc/2820): Aircraft Fuel Distribution System (3,627 reports)
- [JASC 2821](https://openairdocs.org/jasc/2821): Aircraft Fuel Filter/Strainer (366 reports)
- [JASC 2822](https://openairdocs.org/jasc/2822): Fuel Boost Pump (2,745 reports)
- [JASC 2823](https://openairdocs.org/jasc/2823): Fuel Selector/Shut-Off Valve (423 reports)
- [JASC 2824](https://openairdocs.org/jasc/2824): Fuel Transfer Valve (572 reports)
- [JASC 2840](https://openairdocs.org/jasc/2840): Fuel Indicating System (1,863 reports)
- [JASC 2841](https://openairdocs.org/jasc/2841): Fuel Quantity Indicator (1,152 reports)
- [JASC 2842](https://openairdocs.org/jasc/2842): Fuel Quantity Sensor (544 reports)
- [JASC 2843](https://openairdocs.org/jasc/2843): Fuel Temperature Indicator (24 reports)
- [JASC 2844](https://openairdocs.org/jasc/2844): Fuel Pressure Indicator (272 reports)
- [JASC 2897](https://openairdocs.org/jasc/2897): Fuel System Wiring (656 reports)

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