# JASC 7923: Engine Oil Shutoff Valve - Type: JASC system/component code (FAA) - ATA chapter: 79 Engine Oil - Title in the code table: ENGINE OIL SHUTOFF VALVE - Service difficulty reports: 25 - FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=69 - Page: https://openairdocs.org/jasc/7923 ## What it covers The component and associated controls which stop the flow of lubricating oil to the engine for emergency purposes. ## Service difficulty reports (25) - [SDR 2009FA0000071](https://openairdocs.org/sdr/2009FA0000071), Feb 10, 2009: Diamon DA20C1. RELIEF VALVE. STICKING. PILOT CALLED TOWER TO REQUEST PERMISSION FOR PRIORITY APPROACH TO AIRPORT DUE TO A LOW OIL PRESSURE INDICATION. ACFT LAN (N129PA) - [SDR VNAA0212026](https://openairdocs.org/sdr/VNAA0212026), Dec 20, 2002: Dorner DO328100. SHIM. DEFECTIVE. THE CREW RECEIVED A LEFT HAND OIL PRESSURE CAS MESSAGE IN THE AMBER RANGE AND CALLED MAINTENANCE CONTROL. FLIGHT 4056 WA (N422JS) - [SDR HEEA082663](https://openairdocs.org/sdr/HEEA082663), Dec 11, 2002: Bolkms BO105S. VALVE. STUCK. DECK VALVE STUCK OPEN. (N7136H) - [SDR HEEA082627](https://openairdocs.org/sdr/HEEA082627), Dec 11, 2002: Bolkms BO105S. VALVE. STUCK. NR 2 DECK OIL SHUTOFF VALVE STUCK OPEN. (N5031U) - [SDR HEEA082626](https://openairdocs.org/sdr/HEEA082626), Dec 11, 2002: Bolkms BO105S. VALVE. MALFUNCTIONED. OIL SHUTOFF VALVE POPS CIRCUIT BREAKER. TO BE SENT TO VENDOR FOR REPAIR. (N5031U) - [SDR HEEA079515](https://openairdocs.org/sdr/HEEA079515), May 28, 2002: Bell 412. CONNECTOR. DAMAGED. TROUBLESHOOTING FOUND "A" PIN BROKEN IN VALVE PLUG RECEPTICLE OF ENGINE OIL SHUTOFF VALVE. REPLACED WITH SERVICEABLE PAR (N3893N) - [SDR 2001F00315](https://openairdocs.org/sdr/2001F00315), Jul 5, 2001: Doug C54BDC. VALVE. LEAKING. LEAK AT SURGE PROTECTION VALVE. (M) (N44911) - [SDR HEEA073639](https://openairdocs.org/sdr/HEEA073639), Jun 18, 2001: Bell 412. VALVE. CORRODED. CANNON PLUG WAS CORRODED TO CONNECTOR AND WHEN CANNON PLUG WAS REMOVED VALVE CONNECTOR CAME OFF WITH CANNON PLUG. (N1202T) - [SDR HEEA073638](https://openairdocs.org/sdr/HEEA073638), Jun 18, 2001: Bell 412. VALVE. STUCK. WILL NOT OPEN - STICKS. (N142PH) - [SDR 99ZZZX3898](https://openairdocs.org/sdr/99ZZZX3898), Sep 15, 1999: Bell 206B. HOUSING. LOOSE. DURING REPLACEMENT OF NI-CAD FILTER (FACET) AT REMOVAL FROM HOUSING AND BYPASS VALVE ASSY, THE BYPASS VALVE ASSY WAS FOU (N206BY) - [SDR HEEA0016682](https://openairdocs.org/sdr/HEEA0016682), Nov 5, 1998: Bolkms BO105S. VALVE. MALFUNCTIONED. VALVE INTERMITTENTLY WILL NOT CLOSE. (N911BR) - [SDR HEEA0015115](https://openairdocs.org/sdr/HEEA0015115), Jul 1, 1998: Bolkms BO105S. VALVE. STICKING. VALVE STICKS IN OPEN POSITION. (N54191) - [SDR HEEA0014153](https://openairdocs.org/sdr/HEEA0014153), May 11, 1998: Bolkms BO105S. VALVE. FAILED. VALVE NOT OPENING. (N50293) - [SDR HEEA0013971](https://openairdocs.org/sdr/HEEA0013971), Apr 16, 1998: Bolkms BO105S. VALVE. STICKS. VALVE STICKS INTERMITTENTLY. (N8197X) - [SDR HEEA0013312](https://openairdocs.org/sdr/HEEA0013312), Mar 5, 1998: Bolkms BO105S. VALVE. FAILED. VALVE WILL NOT OPEN. INOPERATIVE. (N724MB) - [SDR HEEA0012511](https://openairdocs.org/sdr/HEEA0012511), Jan 6, 1998: Bolkms BO105S. VALVE. FAILED. OIL SYS VALVE WILL NOT OPEN. (N9190Y) - [SDR HEEA0011698](https://openairdocs.org/sdr/HEEA0011698), Oct 22, 1997: Bolkms BO105S. VALVE. INOPERATIVE. OIL SYSTEM VALVE INOPERATIVE. (N3071K) - [SDR HEEA0011236](https://openairdocs.org/sdr/HEEA0011236), Oct 7, 1997: Bolkms BO105S. VALVE. DAMAGED. UPON REMOVING VALVE FROM BOX IT WAS SHIPPED IN AND PULLING CAPS OFF FOR INSTALLATION ON AIRCRAFT, FOUND THAT THE CANNON (N3071K) - [SDR HEEA0011169](https://openairdocs.org/sdr/HEEA0011169), Oct 2, 1997: Bolkms BO105S. VALVE. FAILED. VALVE WILL NOT OPEN. (N8199J) - [SDR HEEA0010570](https://openairdocs.org/sdr/HEEA0010570), Aug 6, 1997: Bolkms BO105S. VALVE. INOPERATIVE. VALVE INOPERATIVE; WILL NOT OPEN. (N8199J) - [SDR HAIHEEA9800](https://openairdocs.org/sdr/HAIHEEA9800), May 7, 1997: Bolkms BO105S. VALVE. INOPERATIVE. SOLENOID SWITCH INOPERATIVE. (N911HM) - [SDR HAIHEEA9399](https://openairdocs.org/sdr/HAIHEEA9399), Apr 16, 1997: Bell 412. VALVE. FAILED. SPRING VALVE WILL NOT SHUT. (N33008) - [SDR HEEA968459](https://openairdocs.org/sdr/HEEA968459), Nov 6, 1996: Bolkms BO105S. VALVE. DEFECTIVE. INTERMITTENT OPERATION. INSPECTED BY ACCESSORY OVERHAUL SHOP AND FOUND VALVE TO BE INOPERATIVE. (N9190Y) - [SDR HEEA968319](https://openairdocs.org/sdr/HEEA968319), Oct 14, 1996: Bolkms BO105S. VALVE. STICKS. VALVE STICKING AND CORRODED SOLENOID. (N911HM) - [SDR HEEA966555](https://openairdocs.org/sdr/HEEA966555), Jan 31, 1996: Bell 412. VALVE. DEFECTIVE. VALVE FLUTTERING; CAUSES ENGINE ITT TO FLUCTUATE WITH HEATER TURNED OFF. (N22608) ## Other codes in chapter 79 - [JASC 7900](https://openairdocs.org/jasc/7900): Engine Oil System (Airframe Furnished) (260 reports) - [JASC 7910](https://openairdocs.org/jasc/7910): Engine Oil Storage (Airframe Furnished) (204 reports) - [JASC 7920](https://openairdocs.org/jasc/7920): Engine Oil Distribution (Airframe Furnished) (734 reports) - [JASC 7921](https://openairdocs.org/jasc/7921): Engine Oil Cooler (982 reports) - [JASC 7922](https://openairdocs.org/jasc/7922): Engine Oil Temperature Regulator (268 reports) - [JASC 7930](https://openairdocs.org/jasc/7930): Engine Oil Indicating System (1,286 reports) - [JASC 7931](https://openairdocs.org/jasc/7931): Engine Oil Pressure (1,875 reports) - [JASC 7932](https://openairdocs.org/jasc/7932): Engine Oil Quantity (217 reports) - [JASC 7933](https://openairdocs.org/jasc/7933): Engine Oil Temperature (499 reports) - [JASC 7997](https://openairdocs.org/jasc/7997): Engine Oil System Wiring (236 reports) --- 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.