# JASC 3418: Stall Warning System

- Type: JASC system/component code (FAA)
- ATA chapter: 34 Navigation
- Title in the code table: STALL WARNING SYSTEM
- Service difficulty reports: 1,641
- FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=37
- Page: https://openairdocs.org/jasc/3418

## What it covers

The system components and parts, including the computer which sense, transmit and provide aural, visual and stick shaker warning of an aircraft in an impending flight stall condition. Typical parts are transducer, stall warning detector, switch, vane, horn, lamp, stick shaker, heater element, warning unit computer, module, etc.

## Service difficulty reports (1,641, newest 50)

- [SDR TAMF20260913061](https://openairdocs.org/sdr/TAMF20260913061), Sep 10, 2026: Airbus A330243F. AOA. OUT OF LIMITS. AIRCRAFT EXPERIENCED AN ECAM NAV AOA EXCEEDED MESSAGE ASSOCIATED WITH TURBULENCE. AIRBUS CONFIRMED LOADS EXCEEDING THE A (N334QT)
- [SDR SWIA2026081276841](https://openairdocs.org/sdr/SWIA2026081276841), Aug 12, 2026: Cndair CL6002C10. AOA. FAULTED. IMMEDIATELY AFTER TAKEOFF GOT A STICK SHAKER WITH CONTINUOUS IGNITION WITH STALL LIGHT FLASHING. FOS SIDE AIRSPEED TAPE  (N758SK)
- [SDR DALA2026080404491](https://openairdocs.org/sdr/DALA2026080404491), Aug 1, 2026: Boeing 717200. AOA. FAILED. ATO- APPROX 30KTS DUE TO STICK PUSHER FAIL AND DISARM SPOILERS ANNUNCIATION WITH ASSOCIATED MASTER CAUTION. REPLACED NR  (N936AT)
- [SDR VNAA2026072821502](https://openairdocs.org/sdr/VNAA2026072821502), Jul 27, 2026: Cndair CL6002C10. AOA. FAULTED. FLAP FAIL IN FLIGHT QRH C/W SPEED TAPE STAYED AT 230 KTS WITH FLAPS INDICATING AT 0. REMOVED AND REPLACED RH AOA VANE IA (N530EA)
- [SDR G1IA20260725114](https://openairdocs.org/sdr/G1IA20260725114), Jul 25, 2026: Pilats PC1245. COMPUTER. FAILED. PUSHER/SHAKER MALFUNCTION. CAWS PUSHER ADVISORY, AUDIO AND SHAKER ACTIVATED UPON TAKEOFF WITH AOA INDICATING "SLOW DIAMO (N238VM)
- [SDR N6WA2026072004](https://openairdocs.org/sdr/N6WA2026072004), Jul 18, 2026: Cndair CL6002C11. COMPUTER. FAULTED. STALL FAIL CAUTION MESSAGE IN FLIGHT. R & R STALL PROTECTION COMPUTER IAW AMM 27-35-01. OPS CHECKED GOOD, NO CURRENT FAU (N513GJ)
- [SDR AALA202606098221](https://openairdocs.org/sdr/AALA202606098221), Jun 7, 2026: Boeing 737823. AOA. INOPERATIVE. AIRCRAFT WAS GROUNDED: CAPTAINS AIRSPEED SPEED LIMIT FLAG INTERMITTENTLY WITH INTERMITTENT LOSS OF FLIGHT DIRECTOR PITCH (N925AN)
- [SDR HNAA2026052600433](https://openairdocs.org/sdr/HNAA2026052600433), May 23, 2026: Emb EMB145LR. AOA. ABNORMAL. SPS ADVANCED DURING TAKE-OFF ROLL AT 80KTS ON CA AIRSPEED INDICATOR, FO AIRSPEED INDICATOR SHOWED 60KTS. CHECK EICAS MES (N663AR)
- [SDR FXTA20260519001](https://openairdocs.org/sdr/FXTA20260519001), May 19, 2026: Cessna 208B. TRANSDUCER. FALSE INDICATION. STALL WARNING HORN GOES OFF INTERMITTENTLY AS HIGH AS 140 KTS (N248BA)
- [SDR 2026FA0000426](https://openairdocs.org/sdr/2026FA0000426), May 11, 2026: Bombdr BD7001A10. STALL WARNING. FALSE INDICATION. AT 190 KNOTS ASKED FOR CLEAN WING AUTO PILOT ON. SHORTLY AFTER THAT SELECTION AND CLOSE TO 200 KNOTS INDICATED AIRSPEED  (N228SS)
- [SDR DALA2026052403140](https://openairdocs.org/sdr/DALA2026052403140), May 9, 2026: Airbus A320212. AOA. DAMAGED. LIGHTENING STRIKE ON ANGLE OF ATTACK (3FP3) BTW FR23 TO FR24 AT STR26L FWD FUSELAGE. REPLACED ANGLE OF ATTACK (3FP3) BTW (N336NW)
- [SDR SIMA20260503001](https://openairdocs.org/sdr/SIMA20260503001), May 3, 2026: Emb ERJ170200LR. DISCONNECT UNIT. FAILED. AOA PITCH TRIM DISCONNECT. FELT SPRING AND HEARD SPRINGS POP FOLLOWED BY AOA LIMIT FAIL CAUTION MESSAGE.EMERGENCY DECLAR (N298FR)
- [SDR CALA2026050415941](https://openairdocs.org/sdr/CALA2026050415941), Apr 30, 2026: Boeing 757224. AOA. FAILED. L AOA PROBE EICAS MESSAGE RIGHT AFTER TAKEOFF DEBRIEFED FLT CREW UPON ARRIVAL. THEY NOTED THAT THE L AOA LIGHT AND EICAS (N14120)
- [SDR Q5QA20260421002](https://openairdocs.org/sdr/Q5QA20260421002), Apr 21, 2026: Pilats PC1245. AOA. FAILED. THE PILOT REPORTED THAT AFTER DEPARTURE HE RECEIVED A SLOW SPEED INDICATION WITH AN ACCOMPANYING STICK SHAKER AND ORAL W (N88QD)
- [SDR CALA2026040715157](https://openairdocs.org/sdr/CALA2026040715157), Mar 30, 2026: Boeing 737824. COMPUTER. FAULTED. AUTO SLAT FAIL INTERMITTENT IN FLIGHT, PERFORMED FIM 27-32, TASK 801. NR 2 SMYD FAULT 27-32005. REF FIM 27-32 TASK 812.  (N33262)
- [SDR IPXA2026030497959](https://openairdocs.org/sdr/IPXA2026030497959), Mar 3, 2026: Boeing 76734AF. AOA. FAULTED. ATB, ON CLIMBOUT CAPT SIDE AIRSPEED WAS ABOVE CLEAN MAN BUT EICAS SHOWED AIRSPEED LOW F/O SIDE NORMAL. GOT STICK SHAKER  (N346UP)
- [SDR CALA2026022314017](https://openairdocs.org/sdr/CALA2026022314017), Feb 18, 2026: Boeing 737924ER. AOA. DAMAGED. LIGHTNING STRIKE ON CLIMB. AIR SPEED DISAGRE E . AOA DISAGREE. CONTIN OUS STICK SHAKER. PERFORMED PHASE 1 INSPECTION REF (N69819)
- [SDR AALA202603066718](https://openairdocs.org/sdr/AALA202603066718), Feb 17, 2026: Boeing 737823. AOA. FAULTED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS NOT DECLARED DUE TO: CAPTAINS PRIMARY FLIGHT DISPLAY (PFD) FLASHED INTERMITTENTL (N335PH)
- [SDR DXTA2026010806473](https://openairdocs.org/sdr/DXTA2026010806473), Jan 6, 2026: Cndair CL6002B16. TRANSMITTER. FAULTY. REPEAT WRITE-UP: NR 2 PFD DISPLAYED ERRATIC AOA INDICATIONS. ON TAKE-OFF AND INITIAL CLIMB OUT THE AOA WOULD DISPLAY RED (N252QS)
- [SDR DALA2025122309337](https://openairdocs.org/sdr/DALA2025122309337), Dec 22, 2025: Boeing 7379GPER. AOA. FAULTED. RTO- APPROX. 85 KNOTS DUE TO AIRSPEED SPLIT. PRESSURIZED CAPTAIN'S AND FIRST OFFICER'S PITOT SYSTEM. FOUND 1 KNOT DISAGR (N931DQ)
- [SDR AALA202511106585](https://openairdocs.org/sdr/AALA202511106585), Nov 7, 2025: Boeing 737823. AOA. FAILED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS NOT DECLARED DUE TO: SPEED LIMIT FLAG APPEARS INTERMITTENTLY ON CAPTAIN'S PFD. W (N902AN)
- [SDR 2025FA0000731](https://openairdocs.org/sdr/2025FA0000731), Oct 24, 2025: Tecnam P2006T. STALL WARNING. INACCURATE. STALL WARNING SOUNDS AT TOO HIGH OF AIRSPEED. MAINTENANCE MANUAL PROVIDES NO PROCEDURES FOR ADJUSTMENT OF ELECTRICAL STA (N248TA)
- [SDR CALA2025101710233](https://openairdocs.org/sdr/CALA2025101710233), Oct 15, 2025: Boeing 737824. AOA. FAULTED. INT STICK SHAKER ON CA SIDE IN FLIGHT CREW REPORTS STALL WARNING OCCURRED AT 18000FT THROUGH 26000 FT. STICK SHAKER CAME (N37255)
- [SDR KY7A2025091600038](https://openairdocs.org/sdr/KY7A2025091600038), Sep 15, 2025: Swrngn SA227AC. STICK PUSHER. MALFUNCTIONED. STICK PUSHER MOMENTARILY ENGAGED ON FINAL AT ABOUT 1,200 FT. AGL. FLAPS WERE FULL AND LANDING GEAR DOWN ON 09/15/2025 08 (N425MA)
- [SDR CALA2025071706674](https://openairdocs.org/sdr/CALA2025071706674), Jul 14, 2025: Boeing 737824. AOA. FAULTED. SPD LIM FLAG CAPT PFD NO VERTICAL FD GUIDANCE INTMT STICK SHAKER CA SIDE. REMOVED AND REPLACED CAPT AOA SENSOR REF AMM 3 (N33262)
- [SDR JJBA20250728096](https://openairdocs.org/sdr/JJBA20250728096), Jul 2, 2025: Emb EMB145XR. CABLE. OUT OF LIMITS. STICK PUSHER CABLE CHAFED OUT OF LIMIT. STICK PUSHER ACTUATOR REMOVED. STICK PUSHER ACTUATOR INSTALLED. (N16147)
- [SDR CALA2025070206155](https://openairdocs.org/sdr/CALA2025070206155), Jul 1, 2025: Boeing 7378. COMPUTER. FAULTED. YAW DAMPENER SWITCH TRIPPED OFF IN FLIGHT ABLE 2 RESET PILOTS STATED YAW DAMPENER SWITCH TRIPPED OFF ONCE DURING THEIR F (N17361)
- [SDR DXTA2025050703399](https://openairdocs.org/sdr/DXTA2025050703399), May 6, 2025: Cndair CL6002B16. STICK SHAKER. FAULTED. STALL CHECK: DURING PREFLIGHT SPS SYSTEM CHECK, WITH LEFT AND RIGHT TEST SWITCHES IN TEST, STICK SHAKER ACTIVATED BUT WE (N261QS)
- [SDR CALA2025042504219](https://openairdocs.org/sdr/CALA2025042504219), Apr 24, 2025: Airbus A320232. AOA. FAULTED. GRAPHIC DISPLAY OF VLS ON ND IS 5 KNOTS HIGHER THAN FMGC. ND SHO WS VLS SAME AS APP SPEED CREW STATED DISCREPANCY WAS VI (N454UA)
- [SDR CALA2025040903665](https://openairdocs.org/sdr/CALA2025040903665), Apr 6, 2025: Boeing 737824. AOA. FAULTED. SPD LIM ON CA PFD W/ INTRMTNT VERT FD CMD BAR INTRMTNT STICK SHA KER AND SPEED TAPES REF L/P 4414719 FOR PART REPLACEMEN (N33262)
- [SDR IPXA2025040275223](https://openairdocs.org/sdr/IPXA2025040275223), Apr 1, 2025: Doug MD11F. STICK SHAKER. INOPERATIVE. **ATB** CAPT/S STICK SHAKER, PLI SHOWING STALL FO STICK SHAKER PLI NORMAL. REMOVED AND REPLACED #1 AOA VANE PER AMM 27-3 (N254UP)
- [SDR SWIA202503210017](https://openairdocs.org/sdr/SWIA202503210017), Mar 17, 2025: Emb ERJ170200LL. AOA. FAILED. AOA LIMIT FAIL, AT FAIL, AP FAIL, AT 34000 FT, STICKER AND LOW SPEED QUE SHOOTING UP. AIRSPEED WAS NOT SLOW, INDICATING  (N610UX)
- [SDR 4DPA2025022800001](https://openairdocs.org/sdr/4DPA2025022800001), Feb 28, 2025: Emb EMB145LR. COMPUTER. FAILED. CREW REPORTED SPS ADV EICAS MESSAGE ELECTED TO RETURN TO DAL. CORR ACTION- MX REPLACED STALL PROTECTION COMPUTER ALL OPS (N933JX)
- [SDR 6CBA2025022025001](https://openairdocs.org/sdr/6CBA2025022025001), Feb 20, 2025: Pilats PC1247E. AOA. FAULTED. THE FLIGHT CREW WERE DEPARTING CYTZ FOR KBED. THE CREW REPORTED "STICK SHAKER ACTIVATED IMMEDIATELY AFTER TAKEOFF ALONG  (N226AF)
- [SDR CALA2025021402328](https://openairdocs.org/sdr/CALA2025021402328), Feb 12, 2025: Boeing 737824. AOA. FAULTED. AFTER TAKEOFF CA FLT DIRECTOR HAD SPD LIM AND THEN GOT STICK SHA KER AT FL250 T/S PER FIM 27-32 TASK 831, SMYD 1 EXISTIN (N39297)
- [SDR DALA2025012800661](https://openairdocs.org/sdr/DALA2025012800661), Jan 28, 2025: Airbus A330941. AOA. FAULTED. SHIP 3410 - ATB - DUE TO CAPTAINS AOA SENSOR FAULT AND AIRCRAFT FLIGHT PROTECTION DOWNGRADING TO ALTN LAW. CORRECTIVE AC (N410DZ)
- [SDR CALA2025010601787](https://openairdocs.org/sdr/CALA2025010601787), Jan 3, 2025: Boeing 737824. AOA. FAULTED. SPD LIM FLAG INTERMITTENT ON CA PFD PREFORMED A SELF TEST ON SYMD 1; LRU PASSED. INTERROGATED LRU FOR HISTORY & EXISTED  (N33209)
- [SDR CALA2024122001586](https://openairdocs.org/sdr/CALA2024122001586), Dec 17, 2024: Boeing 737824. AOA. BROKEN. INTERMIT SPD LIM IND ON CA AIRSPEED INTMT SLOW SPD TAPE INTM CA STICK SHAKERFLAGGED AS SDR CAPT STCK SHAKER AND SPD LIM  (N33292)
- [SDR DALA2024121111654](https://openairdocs.org/sdr/DALA2024121111654), Dec 10, 2024: Boeing 767432ER. AOA. FAULTED. SHIP 1815 -DIV- TO CDG. LOSS OF A/T, LNAV AND VNAV. V/S AND HDG SEL FUNCTIONAL. CORRECTIVE ACTION: C/W OVERWEIGHT LANDIN (N839MH)
- [SDR FDEA202412091788](https://openairdocs.org/sdr/FDEA202412091788), Dec 9, 2024: Boeing 7673S2F. AOA. FAILED. PASSING FL 200 THE ALT DISAGREE EICAS MESSAGE ALONG WITH THE AURAL ALERT ACTIVATED MOMENTARILY AND THE AGAIN PASSING FL  (N107FE)
- [SDR DALA2024120311397](https://openairdocs.org/sdr/DALA2024120311397), Nov 28, 2024: Boeing 717200. TRANSDUCER. SHORTED. SHIP 9550 -ATB/DE- THE FLIGHT CREW RETURNED THE AIRCRAFT TO CAE AND DECLARED AN EMERGENCY DUE TO "STICK PUSHER FAIL" MES (N717JL)
- [SDR HALA20241025060](https://openairdocs.org/sdr/HALA20241025060), Oct 24, 2024: Boeing 717200. STICK SHAKER. WARNING MESSAGE. ABORTED TO @ 30-40 KTS PSEU AND STICK PUSHER FAIL MSG. PERFORMED SLAT DISAGREE BITE PER FIM 27-80 TASK 803. COULD NOT DU (N208HA)
- [SDR FDEA202409051239](https://openairdocs.org/sdr/FDEA202409051239), Sep 5, 2024: Boeing 7572B7. AOA. FAILED. ON ARRIVAL, FOUND WHEN STANDBY POWER SWITCH IS PLACED TO BATTERY, LOST ALTITUDE, SPEED & VERTICAL SPEED INFO & SCALE ON  (N901FD)
- [SDR CALA2024090300531](https://openairdocs.org/sdr/CALA2024090300531), Sep 1, 2024: Boeing 767322. STICK SHAKER. MALFUNCTIONED. MOMENTARY /ONE SECOND/ ACTIVATION OF CAPTS STIC K SHAKER AFTER L IFTOFF. APPROX 75-100 AGL ON INVESTIGATION FOUND DRIVER (N676UA)
- [SDR CALA2025091008753](https://openairdocs.org/sdr/CALA2025091008753), Aug 23, 2024: Airbus A320232. AOA. FAULTY. EG HAS BEEN NOTIFIED BY THE FAA THAT THIS AIRCAFT IS REPORTING HIGHER THAN EXPECTED RVSM ALTITUDES EG IS REQUESTING TO A (N429UA)
- [SDR HNAA2024081900703](https://openairdocs.org/sdr/HNAA2024081900703), Aug 17, 2024: Emb EMB145LR. WARNING SYSTEM. FAULTED. STALL PRTOECTION TEST PERFORMED DURING PREFLIGHT WITH NO ISSUES. PRIOR TO 60KNOTTS ON T/O SPS FAIL EICAS MESSAGE APPEARE (N673AE)
- [SDR 2024F00189](https://openairdocs.org/sdr/2024F00189), Aug 10, 2024: Boeing 73773A. AOA. FAILED. QRF CBB/TJA LEG DUE TO SPPED LIMIT YELLOW FLAG ON PFD PILOT SIDE, STICK SHAKER DURING FLIGHT. CORRECTIVE ACTION: HAS BEE
- [SDR CALA2024080600375](https://openairdocs.org/sdr/CALA2024080600375), Aug 3, 2024: Boeing 737824. AOA. FAULTY. IAS DISAGREE MESSAGE SHOWS ON AIRPSEED DISPLAY CAPTAIN'S IAS DISAGREE CAME ON AT TOPOF DESCENTFL370 CHECKLIST RAN FO SID (N77542)
- [SDR QMLA2024080220095](https://openairdocs.org/sdr/QMLA2024080220095), Aug 2, 2024: Pilats PC1247. AOA. FAULTED. IMMEDIATELY AFTER TAKEOFF THE STICK SHAKER ACTIVATED CONTINUOUSLY WITH THE PUSHER CAWS LIGHT ILLUMINATED. RETURNED TO AI (N959MA)
- [SDR HNAA2024060700488](https://openairdocs.org/sdr/HNAA2024060700488), Jun 6, 2024: Emb EMB145LR. COMPUTER. FAULTED. SPS 2 INOP DISPLAYED IN FLT FACT 06JUN24 20:04 PHL REMOVED AND REPLACED STALL PROTECT COMPUTER IAW AMM 27-36-02. PREFORM (N931AE)

All 1,641: https://openairdocs.org/jasc/3418/reports.md

## Other codes in chapter 34

- [JASC 3400](https://openairdocs.org/jasc/3400): Navigation System (692 reports)
- [JASC 3410](https://openairdocs.org/jasc/3410): Flight Environment Data (218 reports)
- [JASC 3411](https://openairdocs.org/jasc/3411): Pitot/Static System (1,586 reports)
- [JASC 3412](https://openairdocs.org/jasc/3412): Outside Air Temperature Indicator/Sensor (254 reports)
- [JASC 3413](https://openairdocs.org/jasc/3413): Rate of Climb Indicator (157 reports)
- [JASC 3414](https://openairdocs.org/jasc/3414): Airspeed/Mach Indicator (860 reports)
- [JASC 3415](https://openairdocs.org/jasc/3415): High Speed Warning (39 reports)
- [JASC 3416](https://openairdocs.org/jasc/3416): Altimeter, Barometric/Encoder (1,256 reports)
- [JASC 3417](https://openairdocs.org/jasc/3417): Air Data Computer (1,210 reports)
- [JASC 3420](https://openairdocs.org/jasc/3420): Attitude and Direction Data System (772 reports)
- [JASC 3421](https://openairdocs.org/jasc/3421): Attitude Gyro and Indicating System (1,142 reports)
- [JASC 3422](https://openairdocs.org/jasc/3422): Directional Gyro and Indicating System (649 reports)
- [JASC 3423](https://openairdocs.org/jasc/3423): Magnetic Compass (101 reports)
- [JASC 3424](https://openairdocs.org/jasc/3424): Turn and Bank/Rate of Turn Indicator (153 reports)
- [JASC 3425](https://openairdocs.org/jasc/3425): Integrated Flight System (1,148 reports)
- [JASC 3430](https://openairdocs.org/jasc/3430): Landing and Taxi Aids (56 reports)
- [JASC 3431](https://openairdocs.org/jasc/3431): Localizer/VOR System (129 reports)
- [JASC 3432](https://openairdocs.org/jasc/3432): Glide Slope System (66 reports)
- [JASC 3433](https://openairdocs.org/jasc/3433): Microwave Landing System (26 reports)
- [JASC 3434](https://openairdocs.org/jasc/3434): Marker Beacon System (27 reports)
- [JASC 3435](https://openairdocs.org/jasc/3435): Heads Up Display System (10 reports)
- [JASC 3436](https://openairdocs.org/jasc/3436): Wind Shear Detection System (70 reports)
- [JASC 3440](https://openairdocs.org/jasc/3440): Independent Position Determining System (261 reports)
- [JASC 3441](https://openairdocs.org/jasc/3441): Inertial Guidance System (289 reports)
- [JASC 3442](https://openairdocs.org/jasc/3442): Weather Radar System (3,442 reports)
- [JASC 3443](https://openairdocs.org/jasc/3443): Doppler System (110 reports)
- [JASC 3444](https://openairdocs.org/jasc/3444): Ground Proximity System (552 reports)
- [JASC 3445](https://openairdocs.org/jasc/3445): Air Collision Avoidance System (214 reports)
- [JASC 3446](https://openairdocs.org/jasc/3446): Non Radar Weather System (23 reports)
- [JASC 3450](https://openairdocs.org/jasc/3450): Dependent Position Determining System (106 reports)
- [JASC 3451](https://openairdocs.org/jasc/3451): DME/TACAN System (197 reports)
- [JASC 3452](https://openairdocs.org/jasc/3452): ATC Transponder System (624 reports)
- [JASC 3453](https://openairdocs.org/jasc/3453): Long-Range Navigation (LORAN) System (175 reports)
- [JASC 3454](https://openairdocs.org/jasc/3454): Visual Omnirange (VOR) System (317 reports)
- [JASC 3455](https://openairdocs.org/jasc/3455): Automatic Direction Finder (ADF) System (164 reports)
- [JASC 3456](https://openairdocs.org/jasc/3456): Omega Navigation System (9 reports)
- [JASC 3457](https://openairdocs.org/jasc/3457): Global Positioning System (635 reports)
- [JASC 3460](https://openairdocs.org/jasc/3460): Flight Management Computing Hardware System (4,690 reports)
- [JASC 3461](https://openairdocs.org/jasc/3461): Flight Management Computing Software System (68 reports)
- [JASC 3497](https://openairdocs.org/jasc/3497): Navigation System Wiring (269 reports)

---
From OpenAirDocs.org, an independent open copy of FAA and NTSB data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.