# JASC 2750: Trailing Edge Flap Control System

- Type: JASC system/component code (FAA)
- ATA chapter: 27 Flight Controls
- Title in the code table: TE FLAP CONTROL SYSTEM
- Service difficulty reports: 10,185
- FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=26
- Page: https://openairdocs.org/jasc/2750

## What it covers

The system components and parts, except the actuator and position indicator which controls position and movement of wing trailing edge flaps. Does not include the structure, carriage, fittings, tracks and rollers which are filed in JASC code 5753; or the motor or actuator which causes movement of the flaps and are filed in JASC code 2752. Typical parts are control valve, switch, flow limiter, cable, torque tube, transmission, jackscrew, bypass valve, limit switch, return spring, buss cable, etc.

## Service difficulty reports (10,185, newest 50)

- [SDR VNAA2026101926602](https://openairdocs.org/sdr/VNAA2026101926602), Oct 17, 2026: Cndair CL6002D24. PDU. UNSERVICEABLE. FLAPS FAIL CAUTION MSG DURING CRUISE C/A T/S B1 006551 IAW CRJ 900 FIM 27ˆ’52ˆ’09ˆ’810ˆ’802. REMOVED AND REPLACED FL (N547NN)
- [SDR SWAA2026101283058](https://openairdocs.org/sdr/SWAA2026101283058), Oct 11, 2026: Boeing 7378H4. FLAP SYSTEM. LOCKED. TRAILING EDGE FLAP LOCKOUT ON APPROACH. FLAPS LOCKED AT 5, CYCLED FLAP HANDLE, FLAPS EXTENDED TO 15. FAULT OPENED VIA AV (N8530W)
- [SDR AALA202610120413](https://openairdocs.org/sdr/AALA202610120413), Oct 8, 2026: Boeing 737823. FLAP SYSTEM. FAULTED. AIRCRAFT WAS GROUNDED: - EMERGENCY DECLARED; AIRCRAFT LANDED WITHOUT INCIDENT - NO HOT BRAKES INDICATED BY ARFF. DURING  (N914NN)
- [SDR AALA202610077562](https://openairdocs.org/sdr/AALA202610077562), Oct 6, 2026: Boeing 737823. CONTROL MODULE. INOPERATIVE. AIRCRAFT WAS GROUNDED: EMERGENCY DECLARED & AIRCRAFT LANDED WITHOUT INCIDENT, ON STAR OBSERVED FLAP ASYMMETRY WITH FLAPS (N914NN)
- [SDR AALA202610069301](https://openairdocs.org/sdr/AALA202610069301), Oct 5, 2026: Boeing 737823. FSEU. INTERMITTENT. AIRCRAFT WAS NOT GROUNDED: FLAPS WOULD NOT EXTEND BEYOND 10 DEGREES ON APPROACH EXECUTED GO AROUND AND COMPLIED WITH QRH (N984NN)
- [SDR DXTA2026100610021](https://openairdocs.org/sdr/DXTA2026100610021), Oct 3, 2026: Textrn TEXTRON700. FLAP SYSTEM. FAULTED. CLIMBING THROUGH 8900FT THE AMBER FLAPS FAIL CAS DISPLAYED MOMENTARILY THEN WENT AWAY. THE MESSAGE CONTINUED TO DISPLAY  (N839QS)
- [SDR DALA2026100305476](https://openairdocs.org/sdr/DALA2026100305476), Oct 2, 2026: Airbus A319114. TRANSMISSION. FAULTED. DIV - TO AUS DUE TO F/CTL FLAPS FAULT. WTB RESET AND INSPECTED FLAP TRANSMISSION, NO TROUBLE FOUND. (LP: 9499366, AIRCRA (N319NB)
- [SDR FDEA202609301455](https://openairdocs.org/sdr/FDEA202609301455), Sep 30, 2026: Boeing 767300. FSEU. FAILED. DURING APPROACH, WHEN CONFIGURING FROM FLAPS 1 TO 5, RECEIVED TRAILING EDGE FLAP DISAGREE. FLAP INDICATOR STAYED AT FLAP (N281FE)
- [SDR FDEA202609291450](https://openairdocs.org/sdr/FDEA202609291450), Sep 29, 2026: Boeing 767300. FLAP SYSTEM. FAULTED. DURING APPROACH, CONFIGURING FLAPS 1 TO FLAPS 5, RECEIVED T/E FLAP DISAGREE. FLAP IND STAYED AT FLAPS 1 WITH FLAP HANDLE (N281FE)
- [SDR AALA202609292003](https://openairdocs.org/sdr/AALA202609292003), Sep 28, 2026: Boeing 737823. FSEU. FAULTY. AIRCRAFT WAS GROUNDED: DESCENDING THROUGH APPROXIMATELY FL200 WE NOTICED A TE EDGE FLAP ASSYMETRY WHERE THE LEFT NEEDLE  (N914NN)
- [SDR KCSA2026092757](https://openairdocs.org/sdr/KCSA2026092757), Sep 27, 2026: Boeing 7474B5F. BEARING. FAULTED. FLAPS DRIVE EICAS QRH. R & R TORQUE TUBE SUPPORT BEARING ASSY ON RT WING BETWEEN WS 128.45-515 IAW AMM 27-51-20. OPS CHE (N713CK)
- [SDR AALA202609300456](https://openairdocs.org/sdr/AALA202609300456), Sep 23, 2026: Airbus A321253NX. STRUT. OUT OF ADJUST. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO THE FLIGHT CREW REPORTING THAT THE FLAPS LOCKED WHILE ON APPROAC (N427AN)
- [SDR AALA202609304476](https://openairdocs.org/sdr/AALA202609304476), Sep 23, 2026: Airbus A321253NX. STRUT. OUT OF ADJUST. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO THE FLIGHT CREW REPORTING THAT THE FLAPS LOCKED WHILE ON APPROAC (N427AN)
- [SDR AJXA2026092500048](https://openairdocs.org/sdr/AJXA2026092500048), Sep 21, 2026: Cessna 750. FLAP SYSTEM. WARNING MESSAGE. PILOT REPORTED AMBER CAS MESSAGE FLAP FAIL AND DIVERTED TO KIAH (N735XJ)
- [SDR DXTA2026092309827](https://openairdocs.org/sdr/DXTA2026092309827), Sep 20, 2026: Bombdr BD1001A10. FLAP SYSTEM. FAILED. AFTER DEPARTING KCRQ, RECEIVED AN AMBER FLAPS FAIL MESSAGE ON THE EICAS DURING FLAP RETRACTION. DIVERTED TO KLAX. FLAPS  (N776QS)
- [SDR FDEA202609181362](https://openairdocs.org/sdr/FDEA202609181362), Sep 18, 2026: Airbus A300F4605R. GEARBOX. FAILED. FLAPS STUCK LESS THAN 20 DEGRESS. DURING DETENTION PRIOR TO LANDING, DECLARED EMERGENCY, UNEVENTFUL LANDING RUNWAY 28 LE (N673FE)
- [SDR SIMA20260918002](https://openairdocs.org/sdr/SIMA20260918002), Sep 18, 2026: Emb ERJ170200LR. WARNING MESSAGE. FALSE ACTIVATION. FLAP FAIL AFTER TAKE OFF FROM KHPN. PERFORMED QRH AND IT DID NOT CLEAR THE EICAS MESSAGE. DIVERT TO KBDL, LANDED UNDER M (N273NN)
- [SDR IXXA20260917082](https://openairdocs.org/sdr/IXXA20260917082), Sep 17, 2026: Boeing 767381. TRANSMITTER. OUT OF ADJUST. FRM 27-51-03-00 EICAS MESSAGE TE FLAP ASYM DISPLAYED. TRAILING EDGE LIGHT ON. NO FLAP MOVEMENT. MESSAGE APPEARED WHEN FL (N431AZ)
- [SDR DXTA2026091709744](https://openairdocs.org/sdr/DXTA2026091709744), Sep 16, 2026: Emb EMB505. FLAP SYSTEM. FAULT MESSAGE. RECEIVED FLAP FAIL CAS WHEN SELECTING FLAPS 2 WHILE ON APPROACH TO WST. PERFORMED FLAP FAIL QRC WITH NO SUCCESS IN CLEAR (N443QS)
- [SDR DALA2026091705187](https://openairdocs.org/sdr/DALA2026091705187), Sep 16, 2026: Airbus A350941. FLAP SYSTEM. FAULTED. DECLARED AN EMERGENCY DUE TO FLAPS LOCKED AT 5. FOUND FLAP SYSTEM 1+2 FAULT. PERFORMED FAULT CONFIRMATION AND FLAP SYSTE (N514DN)
- [SDR 2026FA0000734](https://openairdocs.org/sdr/2026FA0000734), Sep 16, 2026: Cndair CL6002B19. CONTROL UNIT. FAULTED. FLAPS FAIL CAUTION MSG. AFTER TAKEOFF RETRACTED FLAPS PER PROFILE, RECEIVED FLAP FAIL MSG. RAN QRH PROCEDURE AND RETURNE (N719AV)
- [SDR SWAA2026092120268](https://openairdocs.org/sdr/SWAA2026092120268), Sep 15, 2026: Boeing 7378H4. INDICATOR. TRIPPED. FLAPS LOCKED 15, COMMANDED 30_ PERFORMED FSEU BITE WITH NO CURRENT FAULTS FOUND. FOUND #1 FLAP DRIVE TRANSMISSION TORQUE (N8558Z)
- [SDR ANCF20260917018](https://openairdocs.org/sdr/ANCF20260917018), Sep 15, 2026: Boeing 7878. TRANSDUCER. ABNORMAL. FLAPS DRIVE AMBER ANUNTIATION CAME ON EICAS AFTER TAKE OFF INHIBITED MODE ENDED FLAPS DRIVE AMBER ANUNTIATION CAME ON EI (N793AV)
- [SDR AALA202609178735](https://openairdocs.org/sdr/AALA202609178735), Sep 15, 2026: Boeing 737823. FSEU. INOPERATIVE. AIRCRAFT WAS GROUNDED: EMERGENCY DECLARED; AIRCRAFT LANDED WITHOUT INCIDENT. NO FLAPS OR LEADING EDGE DEVICES AT 210KTS  (N914NN)
- [SDR FDEA202609151351](https://openairdocs.org/sdr/FDEA202609151351), Sep 15, 2026: Boeing 767300. FLAP SYSTEM. FAULTED. GOT TRAILING EDGE FLAP DISAGREE LIGHT,WE DID A GO AROUND, DURING THE PROCESS OF GETTING THE CHECKLIST OUT THE FLAPS STAR (N281FE)
- [SDR DALA2026091605157](https://openairdocs.org/sdr/DALA2026091605157), Sep 15, 2026: Airbus A320211. COMPUTER. FAULTY. SHIP 3278 - ATB - TO DUE TO A FLAPS SYS 1 FAULT MESSAGE. SKYWISE FAILURE MESSAGES INDICATE COMPLETE FAILURE OF SFCC 1. F (N378NW)
- [SDR CVGA20260917002](https://openairdocs.org/sdr/CVGA20260917002), Sep 14, 2026: Emb EMB505. SELECTOR. FAILED. FLAP FAILURE ON TAKEOFF, FLAPS STUCK AT FLAPS 1- THIRD OCCURENCE, WILL DOWNLOAD CMC ( EMERGENCY DECLARED) DOWNLOADED CMC (N668UP)
- [SDR FDEA202609131331](https://openairdocs.org/sdr/FDEA202609131331), Sep 13, 2026: Boeing 7572Q8. BALLSCREW. FAILED. FOUND LT WING FLAP INBD TRANSMISSION WITH INDICATOR TRIPPED & JACKSCREW DAMAGED. AMM: 27-51-11-4 AMM: 27-51-06-4 REMOVED (N996FD)
- [SDR DXTA2026091409666](https://openairdocs.org/sdr/DXTA2026091409666), Sep 11, 2026: Cndair CL6002B16. FCU. ILLUMINATED. SELECTING FLAPS 45. FLAP FAIL CAS MESSAGE. FLAPS STUCK AT 30. FLAPS WILL NOT EXTEND OR RETRACT. REMOVED FAULTY FCU . INS (N248QS)
- [SDR FDEA202609111324](https://openairdocs.org/sdr/FDEA202609111324), Sep 11, 2026: Boeing 7572Q8. TRANSMISSION. FAULTED. WHEN FLAPS 20 SELECTED ON ARRIVAL TE FLAPS DISAGREE EICAS ALERT. TE FLAPS STOPPED AT APPROXIMATELY 18 DEGREES. DECLARED  (N996FD)
- [SDR DXTA2026091109638](https://openairdocs.org/sdr/DXTA2026091109638), Sep 9, 2026: Cessna 680A. FLAP SYSTEM. MALFUNCTIONED. DURING DECENT, FLAPS FAIL CAS MESSAGE DISPLAYED. THE FLAPS AND THE FLAP HANDLE WERE IN THE UP POSITION AND NO FLAP POSIT (N571QS)
- [SDR SWAA2026091009541](https://openairdocs.org/sdr/SWAA2026091009541), Sep 9, 2026: Boeing 73779P. TRANSMITTER. LOCKED. FLAP LOCK OUT BETWEEN UP AND 1 DEGREE REMOVED AND REPLACED RH FLAP POSITION TRANSMITTER REF AMM 27-58-01 (N7860A)
- [SDR FDEA202609091291](https://openairdocs.org/sdr/FDEA202609091291), Sep 9, 2026: Boeing 75721B. FLAP SYSTEM. FAULTED. TE FLAP DISAGREE WHEN GOING FROM FLAPS 20 TO 25. RAN QRH. DECLARED EMERGENCY ***EMERGENCY DECLARED*** CARRIED OUT FIM TA (N934FD)
- [SDR CVGA20260909001](https://openairdocs.org/sdr/CVGA20260909001), Sep 5, 2026: Emb EMB505. FLAP SYSTEM. FAILED. FLAP FAILURE WITH THE FOLLOWING CAS MSGS. SWPS FAULT, FLAP FAIL, PTRIM BKP FAIL AND SPOILER FAULT ADVISORY. THE FLAP IND (N653UP)
- [SDR J7SA2026092900521](https://openairdocs.org/sdr/J7SA2026092900521), Sep 2, 2026: Emb EMB505. FCE. FAULTED. FLAPS FAIL ON STARTUP. REPLACED # 1 FCE IAW EMB PHENOM 300 AMM 27-03-01. (N352FX)
- [SDR AALA202609049694](https://openairdocs.org/sdr/AALA202609049694), Sep 2, 2026: Boeing 777223. FSEU. FAULT MESSAGE. AIRCRAFT WAS NOT GROUNDED: DURING CRUISE FLAP/SLAT CONTROL ICAS MEESAGE, FOLLOWED CHECKLISTLANDED USING ALTERNATE FLAP S (N762AN)
- [SDR SWIA2026083076968](https://openairdocs.org/sdr/SWIA2026083076968), Aug 30, 2026: Cndair CL6002C11. FLAP SYSTEM. FAULTED. FLAPS FAIL IN FLIGHT AT FLAPS 0. RAN QRH IN FLIGHT. (FLIGHT 4295) INTERROGATED MDC AND FOUND B1-006551, INDICATING A POT (N768SK)
- [SDR SIMA20260827001](https://openairdocs.org/sdr/SIMA20260827001), Aug 27, 2026: Emb ERJ170200LR. FLAP SYSTEM. MALFUNCTIONED. FLAP LOW RATE SHOWED UP ON EICAS DURING CRUISE. FOLLOWED BY FLAP FAIL SHORTLY AFTER. FLAPS DID NOT WORK DURING LANDING.  (N201NN)
- [SDR IPXA2026081930589](https://openairdocs.org/sdr/IPXA2026081930589), Aug 18, 2026: Boeing 75724APF. FLAP SYSTEM. WARNING MESSAGE. EMD ON CLIMB OUT AT APPROX 3K' WE GOT A LE SLAT DISAGREE EICAS. MAINTAINED 230 KT OR LESS FOR ENTIRE FLIGHT. AFTER QRH P (N406UP)
- [SDR SWAA2026081816132](https://openairdocs.org/sdr/SWAA2026081816132), Aug 16, 2026: Boeing 7377H4. FLAP SYSTEM. LOCKED. FLAPS LOCKED OUT AT POSITION 10. RIGHT NEEDLE INDICATED 12 DEGREES & LEFT NEEDLE INDICATED 11 DEGRESS. R+R T/E FLAP POSI (N206WN)
- [SDR A6WA202608138907](https://openairdocs.org/sdr/A6WA202608138907), Aug 13, 2026: Cndair CL6002B19. FLAP SYSTEM. FAILED. FLAP FAIL CAUTION ON APPROACH C/W QRH. FLAPS FAILED AT 20 DEGREES. C/W FIM RESET PER AWA SUP 98-018I. MESSAGE REMAINS. A (N438AW)
- [SDR AALA202608116033](https://openairdocs.org/sdr/AALA202608116033), Aug 9, 2026: Airbus A320214. FLAP SYSTEM. FAULT MESSAGE. AIRCRAFT WAS NOT GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT DIVERTED TO JFK DUE TO THE FLIGHT CREW REPORTING F (N123UW)
- [SDR AALA202608118294](https://openairdocs.org/sdr/AALA202608118294), Aug 9, 2026: Airbus A321253NX. FLAP. LOCKED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED INTO LAS DUE TO THE FLIGHT CREW REPORTING THAT ON APPROACH AN ECAM FOR  (N427AN)
- [SDR AALA202608101051](https://openairdocs.org/sdr/AALA202608101051), Aug 7, 2026: Airbus A321211. STRUT. FAULTED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED INTO CLT DUE TO THE FLIGHT CREW REPORTING FLIGHT CONTROL FLAPS LOCKED A (N172US)
- [SDR IPXA2026081527200](https://openairdocs.org/sdr/IPXA2026081527200), Aug 5, 2026: Boeing 76734AF. SHAFT. CORRODED. FOUND LT WING OTBD FLAP NR 2 SUPPORT CRANK ARM AND INPUT SHAFT CORROSION. IAW AMM 27-51-21-024-001, REV 148, REMOVED LT  (N331UP)
- [SDR ABXA20260804347](https://openairdocs.org/sdr/ABXA20260804347), Aug 4, 2026: Boeing 76731K. MODULE. DEFECTIVE. AT APPROXIMATELY 300FT AGL THE FLIGHT CREW RECEIVED THE AURAL WARNING, TOO LOW, FLAPS. BOTH THE FO AND PILOT CONFIRMED F (N1489A)
- [SDR DALA2026073104428](https://openairdocs.org/sdr/DALA2026073104428), Jul 29, 2026: Boeing 757351. TRANSMISSION. FAULTED. DE/FCNT- DUE T/E FLAP DISAGREE MESSAGE. REPLACED NUMBER 8 FLAP TRANSMISSION AND DRAINED AND SERVICED ALL OTHER FLAP TRAN (N584NW)
- [SDR FDEA202607291055](https://openairdocs.org/sdr/FDEA202607291055), Jul 29, 2026: Boeing 757236. ELECTRONIC UNIT. FAULTED. AFTER SELECTING FLAPS 30, WE RECEIVED A TE FLAP DISAGREE MESSAGE. WE EXECUTED A GO AROUND AND DECLARED AN EMERGENCY. AFT (N979FD)
- [SDR WX0A2026072732902](https://openairdocs.org/sdr/WX0A2026072732902), Jul 25, 2026: Airbus A319112. PCU. FAULTED. (AIRCRAFT NOT GROUNDED) (EMERGENCY DECLARED) F/CTL FLAPS FAULT ECAM INFLIGHT FLAPS STUCK AT ZERO. PER TSM 27-51-00-810-8 (N325NV)
- [SDR AALA202607271208](https://openairdocs.org/sdr/AALA202607271208), Jul 25, 2026: Boeing 737823. FLAP SYSTEM. ASYMETRIC. AIRCRAFT WAS GROUNDED: FLAP ASYMMETRY BETWEEN 10 AND 15. LEADING EDGE FLAP TRANSIT ILLUMINATED. DECLARED EMERGENCY AND R (N952AA)

All 10,185: https://openairdocs.org/jasc/2750/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 (609 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 (1,977 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 2782](https://openairdocs.org/jasc/2782): Leading Edge Slat Actuator (1,225 reports)
- [JASC 2797](https://openairdocs.org/jasc/2797): Flight Control System Wiring (919 reports)

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