# SDR CALA2022022400499

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 24, 2022
- Submitted: February 25, 2022
- Operation: Air carrier
- Aircraft: [N26232](https://openairdocs.org/aircraft/N26232), registered now
- Make and model: Boeing 737-800
- Registry model: [Boeing 737-800](https://openairdocs.org/model/boeing-737-800) (OpenAirDocs)
- Aircraft serial: 28942
- Aircraft time: 69,265 hours, 25,845 cycles
- System (JASC): [2700 · Flight Control System](https://openairdocs.org/jasc/2700)
- Part: Sensor
- Condition: Failed
- Location: Flap 4
- Stage of operation: TO
- How discovered: O
- Nature of condition: J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2022022400499

## Discrepancy

LE FLAPS EXT FLICKERD ON TAKEOFF INIT PWR UP GOT TAKEOFF CONFIG WRN ABORTED T/O APPX 10KTS UPDATED MAA CODE FIX USING VENDOR MAA SCREEN PLEASE CONTACT TOMC BEFORE COMMENCING ANY WORK. ACCOMPLISH FSEU BITE, CONTACT TOMC. PER FIM 27-88 TASK 805 FOUND RECENT LEG FAULT LE FLAP 4 RETRACT RETRACTING.PER AMM 27-88-11-700. FAULT. REMOVED AND REPLACED LE FLAP 4 PROXIITY SENSOR IAW 27-88-11. OPS CHECK GOOD, NO EXISTING FAULTS FOUND ON BITE CHECK OF FSEU, AND NO FLICKERING WHEN INTRANSIT, EXTENDING OR ADD EMP:U347675

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