# JASC 2782: Leading Edge Slat Actuator

- Type: JASC system/component code (FAA)
- ATA chapter: 27 Flight Controls
- Title in the code table: LE SLAT ACTUATOR
- Service difficulty reports: 1,225
- FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=27
- Page: https://openairdocs.org/jasc/2782

## What it covers

The component causing movement of the wing leading edge device control surfaces. Does not include related system or position indicating. Typical parts are actuator, actuator bracket, seal, etc.

## Service difficulty reports (1,225, newest 50)

- [SDR DALA2026101205583](https://openairdocs.org/sdr/DALA2026101205583), Oct 11, 2026: Airbus A321213. ACTUATOR. TRIPPED. DECLARED AN EMERGENCY DUE TO F/CTL SLATS FAULT ECAM WARNING. FOUND SLAT ACTUATOR (6087CM) ON RIGHT WING WITH TORQUE LIMI (N362DN)
- [SDR FDEA202609041263](https://openairdocs.org/sdr/FDEA202609041263), Sep 4, 2026: Airbus A300F4605R. JACKSCREW. LEAKING. ON APPROACH, PUT THE SLATS OUT, GOT SLATS 1 & 2 FAULTS. PER ECAM, CYCLED HANDLE. DID NOT EXTEND. FOLLOWED QRH. DECLARED  (N673FE)
- [SDR DALA2026080604554](https://openairdocs.org/sdr/DALA2026080604554), Aug 2, 2026: Boeing 757351. ACTUATOR. FAULTED. DIVERTED TO ATL DUE L/E SLAT ASYMMETRY MESSAGE DURING CLIMB. REPLACED NR 9 OUTBD SLAT ROTARY ACTUATOR.(8354782)(AIRCRAFT (N583NW)
- [SDR F3LA202608030441](https://openairdocs.org/sdr/F3LA202608030441), Jul 31, 2026: Airbus A320251N. ACTUATOR. FAILED. REFERENCE LP 518114 #1 INFLIGHT SLATS FAULT, SLATS STUCK AT ZERO FOR LANDING. INBOUND FLT 3046. FOUND BY FLIGHT CREW UPO (N354FR)
- [SDR FXTA20260626001](https://openairdocs.org/sdr/FXTA20260626001), Jun 26, 2026: Textrn 408. BOLT. LOOSE. FLAP ACTUATOR ATTACHMENT HARDWARE FOUND LOOSE (N701BA)
- [SDR 2026FA0000521](https://openairdocs.org/sdr/2026FA0000521), Jun 17, 2026: Amd FALCON7X. ACTUATOR. UNSECURE. DURING REMOVAL OF THE WING LOWER SURFACE REMOVABLE PANELS (T57-10-01-90-801-01/02 ENCLOSED), AND ESPECIALLY DURING REMOV (N990HA)
- [SDR IPXA2026052990543](https://openairdocs.org/sdr/IPXA2026052990543), May 21, 2026: Boeing 7478F. ACTUATOR. CORRODED. FOUND RT WING NR 17 OUTBD, INBD AND NR 24 INBD SIDE ROTARY ACTUATOR CORROSION. I.A.W AMM 27-81-07-404-008 REV.50 STEP 3A (N611UP)
- [SDR IPXA2026052990524](https://openairdocs.org/sdr/IPXA2026052990524), May 21, 2026: Boeing 7478F. ACTUATOR. CRACKED. FOUND LT WING NR 5 INBD , NR 3 INBD , NR 10 OUTBD'S INBD V.C FLAP ROTARY ACTUATOR CORROSION AND NO.8 OUTBD'S OUTBD V.C F (N611UP)
- [SDR IPXA2026052901241](https://openairdocs.org/sdr/IPXA2026052901241), May 15, 2026: Boeing 7478F. ACTUATOR. CORRODED. FOUND RT WING NR 14 OTBD, INBD SIDE KRUEGER FLAP ROTARY ACTUATOR CORROSION. I.A.W AMM 27-81-06-404-011 REV. 50 STEP 3.A  (N611UP)
- [SDR IPXA2026052901221](https://openairdocs.org/sdr/IPXA2026052901221), May 15, 2026: Boeing 7478F. ACTUATOR. CORRODED. FOUND LT WING NR 11 OUTBD SIDE AND NO.13 OUTBD'S INBD SIDE KRUEGER FLAP ROTARY ACTUATOR CORROSION. I.A.W AMM 27-81-06-40 (N611UP)
- [SDR DALA2026050502852](https://openairdocs.org/sdr/DALA2026050502852), May 4, 2026: Boeing 757232. ACTUATOR. FAULTED. D/E LE SLAT DISAGREE MSG AT 11000MSL 210 KIAS WHEN SELECTING FLAPS TO 1. T/S REMOVED AND REPLACED AND ADJUSTED THE #8 IN (N698DL)
- [SDR YENA2026031600316](https://openairdocs.org/sdr/YENA2026031600316), Mar 18, 2026: Airbus A321231. ACTUATOR. FAILED. FLT #1058 AUA-JFK (EMERGENCY DECLARED)." F/CTRL SLATS FAULT.; PERFORMED T/S PER TSM 27-81-00-810-A FOUND SLAT ACTUATOR T (N959JB)
- [SDR ASMF2026020500001](https://openairdocs.org/sdr/ASMF2026020500001), Jan 29, 2026: Boeing 7879. ACTUATOR. FAILED. SLATS DRIVE 278 121 00, LE SLAT GRA WAS REPLACED IAW AMM DMC -B787-A-27-81-04-01A-520A-A/720A-A (N446AM)
- [SDR SWI2026F00080](https://openairdocs.org/sdr/SWI2026F00080), Jan 18, 2026: Emb ERJ170200LR. LIMITER. TRIPPED. SLAT FAIL ON APPROACH TO HDN. QRH DID NOT FIX, SLAT DID NOT ADVANCE OR RETRACT FROM BETWEEN 0 AND 1 POSITION (FLIGHT 310 (N406SY)
- [SDR R61A2025122700549](https://openairdocs.org/sdr/R61A2025122700549), Dec 27, 2025: Emb ERJ170100SE. ACTUATOR. FAILED. SLAT FAILED IN FLIGHT ON RETRACTION BETWEEN 1 AND 0. DECLARED EMERGENCY, LANDED WITHOUT INCIDENT. REMOVED AND REPLACED L (N857RW)
- [SDR DALA2025120208793](https://openairdocs.org/sdr/DALA2025120208793), Dec 1, 2025: Airbus A321211. ACTUATOR. FAULTED. DUE TO F/CTL SLATS FAULT ECAM WARNING WHILE SELECTING FLAPS 1. FOUND SLAT ACTUATOR 6083CM TORQUE LIMITER TRIPPED ON THE  (N118DY)
- [SDR SWAA2025120139741](https://openairdocs.org/sdr/SWAA2025120139741), Nov 26, 2025: Boeing 73779P. ATTACH BOLT. CRACKED. RIGHT WING NR 8 SLAT ACTUATOR, ONE FASTENER CRACKED AT ATTACHMENT POINT. REMOVED AND REPLACED THE RT WING NR 8 SLAT AND  (N7857B)
- [SDR DALA2025110908154](https://openairdocs.org/sdr/DALA2025110908154), Nov 9, 2025: Airbus A320211. ACTUATOR. TRIPPED. DECLARED EMERGENCY DUE TO THE SLATS LOCKED MESSAGE DURING EXTENSION FOR THE APPROACH. SKYWISE INDICATES A SLATS MECHANIC (N329NW)
- [SDR DALA2025101707589](https://openairdocs.org/sdr/DALA2025101707589), Oct 16, 2025: Boeing 757232. ACTUATOR. BINDING. -FCNT/DE- DUE TO LEADING EDGE SLAT DISAGREE MESSAGE. R & R #1 SLAT INBOARD AND OUTBOARD ROTARY ACTUATORS. (N685DA)
- [SDR MASA2025101100085](https://openairdocs.org/sdr/MASA2025101100085), Oct 10, 2025: Emb ERJ170200LR. ACTUATOR. FAILED. SLAT FAIL MASTER CAUTION (EMER DECLARED)/R&R SFACE 2 ADN RESET #6 LH WING ACTUATOR (N86316)
- [SDR IPXA2025100720177](https://openairdocs.org/sdr/IPXA2025100720177), Oct 6, 2025: Boeing 767*. GEARBOX. STUCK. WHILE EXTENDING FLAPS FROM UP TO 1, RECEIVED LE FLAP ASYM EICAS MSG AND LEADINGEDGE DISCRETE LIGHT. INSTALLED INBOARD AN (N393UP)
- [SDR ASMF2025100700263](https://openairdocs.org/sdr/ASMF2025100700263), Sep 24, 2025: Boeing 7879. ACTUATOR. FAILED. AFTER TAKE OFF SLAT DRIVE ON EICAS // MAINTENANCE MESSAGE 27-22322 OUTBOARD SLAT SKEW SENSOR 8 IS FAILED. ROTARY ACTUATO (N967)
- [SDR CALA2025090908672](https://openairdocs.org/sdr/CALA2025090908672), Sep 5, 2025: Boeing 78710. ACTUATOR. FAULTED. SLATS DRIVE CAUTION PRIMARY AND SECONDARY SLAT DRIVES HAVE FAILED TO OPERATE, OR HAV E BEEN SHUT DOWN BECAUSE OF AN ASYM (N12005)
- [SDR DALA2025082906391](https://openairdocs.org/sdr/DALA2025082906391), Aug 27, 2025: Airbus A321211. LIMITER. TRIPPED. MISC/DE - DUE TO F/CTL SLATS FAULT ECAM WARNING AND SLATS STUCK IN THE UP POSITION. FOUND TORQUE LIMITER AT LEFT WING SL (N126DN)
- [SDR DALA2025080705919](https://openairdocs.org/sdr/DALA2025080705919), Aug 7, 2025: Airbus A321211. ACTUATOR. FAULTED. DECLARED EMERGENCY DUE TO THE SLATS BEING LOCKED AT POSITION 1 WITH A SLATS FAULT MESSAGE. FOUND RT NR 3 SLAT ACTUATOR T (N119DN)
- [SDR DALA2025072405584](https://openairdocs.org/sdr/DALA2025072405584), Jul 22, 2025: Boeing 717200. CYLINDER. FAULTED. SHIP 9536-FCNT-THE CREW RECEIVED A SLAT DISAGREE MESSAGE ON APPROACH WITH ASSOCIATED ROLL. CORRECTIVE ACTION: MAINTENANC (N974AT)
- [SDR AALA202507075013](https://openairdocs.org/sdr/AALA202507075013), Jul 3, 2025: Airbus A321253NX. ACTUATOR. FAULT MESSAGE. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO SEA DUE TO THE FLIGHT CREW REPORTING THAT  (N423AN)
- [SDR 2025FA0000407](https://openairdocs.org/sdr/2025FA0000407), Jun 18, 2025: Airtrc AT802A. FLEX COUPLING. BROKEN. AN AIR TRACTOR AT802A WAS INVOLVED IN A TAKE-OFF INCIDENT, CAUSING SUBSTANTIAL DAMAGE. THE PIC LOOKED TO HIS LEFT AND RI (N805KP)
- [SDR DALA2025061304480](https://openairdocs.org/sdr/DALA2025061304480), Jun 11, 2025: Airbus A321211. ACTUATOR. TRIPPED. SHIP 3048 - MISC/DE - DUE TO SLATS LOCKED OUT AT ZERO (F/CTL SLATS FAULT ECAM WARNING). CORRECTIVE ACTION: FOUND RIGHT W (N348DN)
- [SDR VNAA202505080002](https://openairdocs.org/sdr/VNAA202505080002), May 8, 2025: Cndair CL6002C10. ACTUATOR. CORRODED. FOUND CORROSION AROUND FASTENER HOLES (MARKED WITH RED TAPE) ON L/H FLAP VANE CRADLE ASSEMBLY (P#CC670-14301-9) @ F.L.S. (N502AE)
- [SDR AALA202503100175](https://openairdocs.org/sdr/AALA202503100175), Mar 5, 2025: Airbus A321231. ACTUATOR. TRIPPED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO THE FLIGHT CREW REPORTING A FLIGHT CONTROL SLATS FAULT INBOUND I (N167AN)
- [SDR IPXA2025030748701](https://openairdocs.org/sdr/IPXA2025030748701), Mar 4, 2025: Boeing 75724APF. ACTUATOR. FAULTED. **SUPPLEMENTAL SDR** LE SLAT DISAGREE WHILE CONFIGURING FOR LANDING. RAN QRH PROCEDURE. R/R #10 INBOARD ROTARY ACTUATOR  (N450UP)
- [SDR DALA2025022401427](https://openairdocs.org/sdr/DALA2025022401427), Feb 22, 2025: Boeing 757232. ACTUATOR. TRIPPED. SHIP 0699 -FCNT/DE- LEADING EDGE SLAT DISAGREE ON APPROACH. CORRECTIVE ACTION: T/S FOUND #8 ROTARY ACTUATOR TRIPPED, R/R (N699DL)
- [SDR SIMA20250213001](https://openairdocs.org/sdr/SIMA20250213001), Feb 13, 2025: Emb ERJ170100SU. ACTUATOR. FAULTED. SLAT FAIL. SLATS STUCK IN ZERO POSITION QRH DID NOT RESOLVE ISSUE. QRH DIRECTED A FLAPS 2 LANDING. EMERGENCY DECLARED LA (N744DB)
- [SDR AALA202501230148](https://openairdocs.org/sdr/AALA202501230148), Jan 22, 2025: Boeing 7878. GEAR. CORRODED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: "SLAT DRIVE MESSAGE SHOWED UP DURING FLAP AND SLAT RETRCATION A (N819AN)
- [SDR AALA202501230117](https://openairdocs.org/sdr/AALA202501230117), Jan 22, 2025: Boeing 7878. GEAR. CORRODED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: "SLAT DRIVE MESSAGE SHOWED UP DURING FLAP AND SLAT RETRCATION A (N819AN)
- [SDR AALA202501232751](https://openairdocs.org/sdr/AALA202501232751), Jan 22, 2025: Boeing 7878. PINION GEAR. CORRODED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: "SLAT DRIVE MESSAGE SHOWED UP DURING FLAP AND SLAT RETRCATION A (N819AN)
- [SDR F3LA202412160169](https://openairdocs.org/sdr/F3LA202412160169), Dec 12, 2024: Airbus A321211. ACTUATOR. TRIPPED. A/C GROUNDED DUE TO SLATS JAMMED AT 0 COMING INTO KMCO HAD F/CTL SLATS FAULT ECAM. RECYCLED FLAP LEVER PER ECAM, ECAM RE (N722FR)
- [SDR AALA202412265064](https://openairdocs.org/sdr/AALA202412265064), Dec 11, 2024: Airbus A321211. ACTUATOR. FAULTED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED INBOUND INTO CLT DUE TO THE FLIGHT CREW REPORTING THAT A FLIGHT CONTROL (N162UW)
- [SDR CALA2024120601422](https://openairdocs.org/sdr/CALA2024120601422), Dec 3, 2024: Boeing 7879. DRIVE UNIT. FAILED. SLATS DRIVE CAUTION PRIMARY AND SECONDARY SLAT DRIVES HAVE FAILED TO OPERATE, OR HAV E BEEN SHUT DOWN BECAUSE OF AN ASYM (N29968)
- [SDR CALA2024101800855](https://openairdocs.org/sdr/CALA2024101800855), Oct 16, 2024: Boeing 7378. ACTUATOR. FAULTED. LE FLAPS TRANSIT ILLUMINATED AFTER FLAP RETRACTIONSDR STARTED PER FIM 27-81 TASK 830 REPLACE THE FSEU M1746 IF ALL MESSA (N57286)
- [SDR AALA202409184123](https://openairdocs.org/sdr/AALA202409184123), Sep 17, 2024: Airbus A321231. ACTUATOR. TRIPPED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED ON ARRIVAL INTO SFO DUE TO AN ECAM SLAT FAULT AT 0, FLAPS OPERATED NORM (N575UW)
- [SDR DALA2024082208353](https://openairdocs.org/sdr/DALA2024082208353), Aug 21, 2024: Boeing 737832. ACTUATOR. INOPERATIVE. SHIP 3755 -DIV- DIVERTED JFK DUE TO ALL LEADING-EDGE SLAT SHOWING IN TRANSIT. CORRECTIVE ACTION: MAINTENANCE REPLACED NU (N3755D)
- [SDR CALA2024080702174](https://openairdocs.org/sdr/CALA2024080702174), Aug 5, 2024: Boeing 757224. ACTUATOR. FAILED. LEADING EDGE SLAT DISAGREE AFTER TAKEOFF, FLAPS STUCK BETWEEN UP & 1 UNTIL ALT SYS USE. PERFORMED T/S WITH TECH SUPPORT  (N13113)
- [SDR UIEA2024070400580](https://openairdocs.org/sdr/UIEA2024070400580), Jul 7, 2024: Boeing 76736N. DRIVE ASSY. LEAKING. LEFT WING POWER DRIVE UNIT ASSY LE SLAT WITH EVIDENCE OF LEAK(<P>LEFT WING POWER DRIVE UNIT ASSY L/E SLAT WAS REPLACED I (N1093A)
- [SDR DALA2024070106634](https://openairdocs.org/sdr/DALA2024070106634), Jun 28, 2024: Boeing 7379GPER. ACTUATOR. INOPERATIVE. SHIP 3941 -UFC/DE- DECLARED EMERGENCY DUE TO LEADING EDGE SLAT SENSOR FAULT ON APPROACH CLE. CORRECTIVE ACTION: MAINTENA (N941DZ)
- [SDR DALA2024062006276](https://openairdocs.org/sdr/DALA2024062006276), Jun 20, 2024: Boeing 767432ER. CONTROL VALVE. LEAKING. SHIP 1807 -GEAR- ALTERNATE GEAR EXTEND SYSTEM USED TO LOWER LANDING GEAR DUE TO CTR HYD SYSTEM QUANTITY LOSS. CORRECTIVE (N831MH)
- [SDR DALA2024060205727](https://openairdocs.org/sdr/DALA2024060205727), Jun 1, 2024: Airbus A320211. ACTUATOR. TRIPPED. SHIP 3220 DISC: FLT CTL SLAT FAULT ON APPROACH. WOULD NOT RESET WITH FLAP LEVER MOVED. LANDED FLAPS 3 SLAT 0. FOLLOWED F (N320US)
- [SDR DALA2024041504470](https://openairdocs.org/sdr/DALA2024041504470), Apr 13, 2024: Airbus A321271NX. LIMITER. TRIPPED. DUE TO F/CTL SLATS FAULT ECAM MESSAGE. CORRECTIVE ACTION: FOUND SLAT ACTUATOR 6033CM TORQUE LIMITER TRIPPED. REPLACED SL (N535DN)
- [SDR AALA202403110047](https://openairdocs.org/sdr/AALA202403110047), Mar 10, 2024: Airbus A321253NX. ACTUATOR. MALFUNCTIONED. AIRCRAFT WAS GROUNDED: SLAT FAULT IN FLIGHT. REPLACED SLAT ACTUATOR (6039CM). (N423AN)

All 1,225: https://openairdocs.org/jasc/2782/reports.md

## Other codes in chapter 27

- [JASC 2700](https://openairdocs.org/jasc/2700): Flight Control System (1,742 reports)
- [JASC 2701](https://openairdocs.org/jasc/2701): Control Column Section (510 reports)
- [JASC 2710](https://openairdocs.org/jasc/2710): Aileron Control System (2,967 reports)
- [JASC 2711](https://openairdocs.org/jasc/2711): Aileron Tab Control System (415 reports)
- [JASC 2720](https://openairdocs.org/jasc/2720): Rudder Control System (3,130 reports)
- [JASC 2721](https://openairdocs.org/jasc/2721): Rudder Tab Control System (686 reports)
- [JASC 2722](https://openairdocs.org/jasc/2722): Rudder Actuator (284 reports)
- [JASC 2730](https://openairdocs.org/jasc/2730): Elevator Control System (2,647 reports)
- [JASC 2731](https://openairdocs.org/jasc/2731): Elevator Tab Control System (1,295 reports)
- [JASC 2740](https://openairdocs.org/jasc/2740): Stabilizer Control System (2,126 reports)
- [JASC 2741](https://openairdocs.org/jasc/2741): Stabilizer Position Indicating (889 reports)
- [JASC 2742](https://openairdocs.org/jasc/2742): Stabilizer Actuator (610 reports)
- [JASC 2750](https://openairdocs.org/jasc/2750): Trailing Edge Flap Control System (10,186 reports)
- [JASC 2751](https://openairdocs.org/jasc/2751): Trailing Flap Position Indicating System (3,078 reports)
- [JASC 2752](https://openairdocs.org/jasc/2752): Trailing Edge Flap Actuator (1,978 reports)
- [JASC 2760](https://openairdocs.org/jasc/2760): Drag Control System (3,502 reports)
- [JASC 2761](https://openairdocs.org/jasc/2761): Drag Control Actuator (1,070 reports)
- [JASC 2770](https://openairdocs.org/jasc/2770): Gust Lock Damper System (90 reports)
- [JASC 2780](https://openairdocs.org/jasc/2780): Leading Edge Slat Control System (2,157 reports)
- [JASC 2781](https://openairdocs.org/jasc/2781): Leading Edge Slat Position Indicating System (1,398 reports)
- [JASC 2797](https://openairdocs.org/jasc/2797): Flight Control System Wiring (919 reports)

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