# JASC 3700: Vacuum System - Type: JASC system/component code (FAA) - ATA chapter: 37 Vacuum - Title in the code table: VACUUM SYSTEM - Service difficulty reports: 33 - FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=42 - Page: https://openairdocs.org/jasc/3700 ## What it covers The units and components used to generate, deliver, and regulate negative air pressure. Use this code for general reports of the pressure/vacuum system with insufficient information to file in a more specific JASC 3700 series code. ## Service difficulty reports (33) - [SDR DALA2026081404654](https://openairdocs.org/sdr/DALA2026081404654), Aug 13, 2026: Airbus A321271NX. GENERATOR. OVERHEATED. UNIDENTIFIED SMELL REPORTED BY FLIGHT ATTENDANT IN AFT GALLEY. REPORTED SMELL AT THE GATE WITH ONLY EXTERNAL AIR HOOKED (N576DN) - [SDR DALA2024101710156](https://openairdocs.org/sdr/DALA2024101710156), Oct 16, 2024: Airbus A321211. VACUUM SYS. FAULTED. SHIP 3053 - ATB - DUE TO SEWAGE SMELL IN COCKPIT AND CABIN. CORRECTIVE ACTION: REPLACED WASTE VACUUM GENERATOR. (37MG). (N353DN) - [SDR 2024FA0000285](https://openairdocs.org/sdr/2024FA0000285), Apr 4, 2024: Cessna 150M. PUMP. CONTAMINATED. OVER LAST 12 YEARS AND 500 HOURS OPERATING TIME N1975T HAS EXPERIENCED 5 FAILURES OF THE PUMP PN RAP215CC-9. IN EACH CAS (N1975T) - [SDR DALA2024013101410](https://openairdocs.org/sdr/DALA2024013101410), Jan 30, 2024: Airbus A320212. GENERATOR. INOPERATIVE. SHIP 3266 DISC: SMOKE FUMES SMELL IN THE AFT OF THE AIR CRAFT, SOME HAZE ROW 30 AFT. LIKE A PLASTIC/BURNING SMELL. HAPPE (N366NW) - [SDR CALA2022082902195](https://openairdocs.org/sdr/CALA2022082902195), Aug 26, 2022: Boeing 737. SKIN. NONE. BEGIN REPAIR AT L/H SIDE AT WASTE TANK VACUMM HOLE (REF AAR NR 9 9939552) 31-02932 INITIATE 2ND DIP FOR PLANNING TO CONT (N15751) - [SDR CA190730027](https://openairdocs.org/sdr/CA190730027), Jun 26, 2019: Cessna 185E. PUMP. SHEARED. (CAN) WHILE PERFORMING A SCHEDULED INSPECTION, THE PILOT STATED THE VACUUM FLUCTUATED. FURTHER INSPECTION REVEALED THE S - [SDR AALA201709189020](https://openairdocs.org/sdr/AALA201709189020), Sep 17, 2017: Airbus A321231. GENERATOR. FAILED. FLIGHT ATTENDANT REPORTED A LOUD METALLIC GRINDING SOUND FROM BELOW THE RIGHT SIDE AFT GALLEY FLOOR, FOLLOWED BY THE ODO (N121AN) - [SDR 2017FA0000289](https://openairdocs.org/sdr/2017FA0000289), Jul 18, 2017: Cessna 206H. PUMP. SHEARED. VACUUM PUMP FAILED IN FLIGHT. CAUSED INSTRUMENT OPERATIONAL FAILURE OF SEVERAL INSTRUMENTS. OVERHAULED. (N809Q) - [SDR 2017FA0000118](https://openairdocs.org/sdr/2017FA0000118), Mar 22, 2017: Mooney M20S. HOSE. DETERIORATED. STANDBY VACUUM SYSTEM FOUND INOPERATIVE. ELECTRIC DRIVEN PUMP FOUND FULL OF THICK OILY SUBSTANCE. HOSE FROM PUMP TO FIRE (N400ME) - [SDR VE7A2017021300001](https://openairdocs.org/sdr/VE7A2017021300001), Feb 6, 2017: Skrsky S76C. PUMP. FAILED. ELECTRICAL BURNING ODOR DETECTED AND SMOKE NOTED IN CABIN JUST PRIOR TO TAKE-OFF. TAKE-OFF ABORTED. MAINTENANCE INSPECTE (N709P) - [SDR CA130612002](https://openairdocs.org/sdr/CA130612002), Jun 12, 2013: Cessna 208B. RELIEF VALVE. WORN. (CAN) PART WAS INSTALLED NEW DURING INSPECTION. AFTER NOTING THAT THE ORIGINAL EJECTOR RELIEF VALVE WAS SHOWING SIGNS OF - [SDR CA130313003](https://openairdocs.org/sdr/CA130313003), Mar 8, 2013: Cessna 172S. SWITCH. FAILED. (CAN) VACUUM MANIFOLD WAS TESTED DURING 200 HR INSPECTION OF THE ACFT. LEFT LOW VACUUM LIGHT WOULD NOT COME ON. SWITCH F - [SDR BSY2008F00018](https://openairdocs.org/sdr/BSY2008F00018), Oct 23, 2008: Beech 58. PUMP. FAILED. RT ENGINE DRIVEN VAC PUMP FAILED. THE SCREW FOR CHECKING WEAR ON VANES WAS MISSING, CAUSING PREMATURE FAILURE. (K) (N9044V) - [SDR BSY2008F00008](https://openairdocs.org/sdr/BSY2008F00008), Oct 21, 2008: Beech 58. PUMP. FAILED. LT ENGINE DRIVEN VAC PUMP FAILED THE SCREW FOR CHECKING WEAR WAS MISSING CAUSING PREMATURE FAILURE. (K) (N21ES) - [SDR DUFA20070004](https://openairdocs.org/sdr/DUFA20070004), Aug 16, 2007: Cessna 402B. DRIVE ASSY. SHEARED. WHILE IN CRUISE FLIGHT THE PILOT NOTICED OIL STREAMING FROM THE TOP OF THE LT ENGINE COWL. THE OIL PRESSURE WAS STILL IN (N3796C) - [SDR 2007FA0000006](https://openairdocs.org/sdr/2007FA0000006), Sep 26, 2006: Grob G120A. SHAFT. BROKEN. DURING ENGINE START, SUCTION PRESSURE WAS READING ZERO, DURING FURTHER TROUBLESHOOTING, TECH FOUND THE ENGINE DRIVEN DRI (N865AF) - [SDR 2007FA0000005](https://openairdocs.org/sdr/2007FA0000005), Sep 22, 2006: Grob G120A. PUMP. WORN. DURING FLIGHT SUCTION PRESSURE READING DROPPED TO ZERO, DURING FURTHER TROUBLESHOOTING TECHICIAN FOUND THE ENGINE DRIVEN (N862AF) - [SDR COMA0660548](https://openairdocs.org/sdr/COMA0660548), Sep 20, 2006: Cndair CL6002B19. REGULATOR. FAULTY. FLIGHT 5555- ENROUTE, LOST CABIN PRESSURE AT 10,000 FT, CREW DECLARED AN EMERGENCY AND FLIGHT LANDED AT LGA WITHOUT INCI (N989CA) - [SDR 2006UALA01257](https://openairdocs.org/sdr/2006UALA01257), Jun 26, 2006: Boeing 777222. VACUUM SYS. OBSTRUCTED. LAV PROBLEMS. AFT VACUUM SYS LAVS BLOCKED. FOUND WASTE SYSTEM VACUUM BLOWER INOPERATIVE. ALSO, DAMAGE TO DUCTING AND CLA (N227UA) - [SDR BSYA200500030](https://openairdocs.org/sdr/BSYA200500030), Dec 12, 2005: Beech 58. SEAL. SLIPPED. ON TAKEOFF, PILOT NOTICED SMOKE COMING FROM LT ENGINE, PILOT ELECTED TO RETURN TO DEPARTURE. MAINTENANCE FOUND THAT THE (N400RP) - [SDR 2006FA0000014](https://openairdocs.org/sdr/2006FA0000014), Nov 12, 2005: Beech C24R. EXHAUST PIPE. CORRODED. EXHAUST PORT OF DRY AIR PUMP FELL OFF DURING FLIGHT AND LODGED IN LANDING GEAR RETRACTION SYSTEM. AC HAD TO LAND NOSE GE (N18993) - [SDR DXTA200500648](https://openairdocs.org/sdr/DXTA200500648), Mar 30, 2005: Cessna 750. LINE. CONTAMINATED. BAGGAGE SEAL CAS MESSAGE CAME ON AT FL 430 (CABIN PRESS OK), APPROX 1 HOUR LATER BAGGAGE ALTITUDE MESSAGE APPEARED AND C (N970QS) - [SDR CA040106003](https://openairdocs.org/sdr/CA040106003), Dec 19, 2003: Piper PA31350. SHAFT. BROKEN. (CAN) DURING THE LAST FLIGHT OF THE DAY THE LT INDICATOR LIGHT ON THE INSTRUMENT PANEL CAME ON, INDICATING THAT THE VACU - [SDR 2002FA0000333](https://openairdocs.org/sdr/2002FA0000333), Feb 7, 2002: Beech 58. PUMP. INOPERATIVE. PILOT EXPERIENCED DUAL VACUUM PUMP FAILURE IN FLIGHT IN VFR CONDITIONS. (N58WC) - [SDR HYI2002F00002](https://openairdocs.org/sdr/HYI2002F00002), Jan 28, 2002: Cessna 402C. MANIFOLD. FAILED. CREW REPORTED THAT ON START, LEFT ENGINE DRIVEN VACUUM PUMP CAUSED BOTH VACUUM SOURCE FAILURE INDICATORS TO ENGAGE. MAIN (N780EA) - [SDR CA020226007](https://openairdocs.org/sdr/CA020226007), Dec 4, 2001: Piper PA31350. PUMP. FAILED. (CAN) VACUUM PUMP INSTALLED ON ENGINE, TEST SHOWED EXCESSIVE OIL LEAK AT MOUNT BASE. OIL PRESSURE ON ENGINE WENT TO "0" - [SDR CA010627014](https://openairdocs.org/sdr/CA010627014), May 9, 2001: Boeing 7372A9C. LINE. WORN. (CAN) AT CRUISE, FIRST OFFIER'S AIRSPEED INDICATION WASERRATIC, AIRCRAFT LANDED WITHOUT INCIDENT. FOUND PITOT STATIC LIN - [SDR CA001122026](https://openairdocs.org/sdr/CA001122026), Nov 9, 2000: Cessna 172RG. DRIVE SHAFT. FAILED. (CAN) NEW VACCUM PUMP FAILS AFTER ONLY 36 HOURS IN SERVICE. - [SDR 20000920SH011](https://openairdocs.org/sdr/20000920SH011), Jun 3, 2000: Amrgen AA1A. GASKET. LEAKING. REPLACED VAC/PUMP OIL SEAL STD-208 AND GASKET SL-61183 (2 TIMES SL-61183). OIL WOULD LEAK OUT IN GREAT AMOUNT. SEAL/GASK (N7C) - [SDR 99ZZZX2237](https://openairdocs.org/sdr/99ZZZX2237), Apr 26, 1999: VALVE. MISMANUFACTURED. THE PISTON ASSEMBLY WITHIN THE SUSPECT VALVES MIGHT NOT HAVE BEEN ASSEMBLED TO PRINT AND TO ENSURE PARTS ARE LOCKHEED IN - [SDR 99ZZZX1051](https://openairdocs.org/sdr/99ZZZX1051), Feb 2, 1999: Piper PA44180. CONNECTOR. MISINSTALLED. AIRCRAFT BROUGHT IN FOR VACUUM PUMP FAILURE. BEFORE REPLACEMENT OF PUMP DURING RUN-UP AND OPS CHECK, THE OIL AREA ANNUNC (N856ND) - [SDR 99ZZZX86](https://openairdocs.org/sdr/99ZZZX86), Dec 9, 1998: Piper PA31P. SHAFT. SHEARED. PUMP SHAFT SHEARED, FOUND PROPELLER SEIZED. (N252MA) - [SDR 98ZZZX3253](https://openairdocs.org/sdr/98ZZZX3253), Aug 19, 1998: Cessna 177RG. VACUUM PUMP. FAILED. PART FAILED UPON THROTTLE REDUCTION FOR LANDING AFTER A 2.9 HOUR FLIGHT. LOW-VAC WARNING LIGHT ILLUMINATED. THE ALTERNAT (N34807) ## Other codes in chapter 37 - [JASC 3710](https://openairdocs.org/jasc/3710): Vacuum Distribution System (292 reports) - [JASC 3720](https://openairdocs.org/jasc/3720): Vacuum Indicating System (6 reports) - [JASC 3797](https://openairdocs.org/jasc/3797): Vacuum System Wiring (4 reports) --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. 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