# SDR AALA202203291109

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 23, 2022
- Submitted: March 29, 2022
- Operation: Air carrier
- Aircraft: [N962AN](https://openairdocs.org/aircraft/N962AN), registered now
- Make and model: Boeing 737*
- Aircraft serial: 30858
- Aircraft time: 58,983 hours, 24,893 cycles
- System (JASC): [2780 · Leading Edge Slat Control System](https://openairdocs.org/jasc/2780)
- Part: Actuator
- Part number: 3818001005
- Condition: Leaking
- Location: Zone 500 - Lh Wi
- Stage of operation: LD
- How discovered: V
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202203291109

## Discrepancy

AIRCRAFT WAS GROUNDED: IN FLIGHT SLAT #4 FAILED TO EXTEND. LE FLAPS TRANSIT LIGHT ILLUMINATED. FLAPS - TRAILING EDGE - WERE NORMAL FOLLOWING LE FLAPS TRANSIT LIGHT PROCEDURE AND WHEN A/C CONFIGURED FOR FLAPS 15 LANDING. CONDITION CORRECTED IT SELF. CREW RECONFIGURED TO FLAPS 30 LANDING. AFTER LANDING NO LE DEVICES RETRACTED WHEN FLAPS RAISED.LE FLAP TRANSIT LIGHT IS ILLUMINATED AGAIN. **SUPPLEMENTAL REPORT FOR AALA202203251109: REPLACED #3 SLAT ACTUATOR DUE TO A CRACKED LINE ON THE ACTUATOR THAT WAS FOUND TO BE LEAKING AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 27-81-41-100-801** (CLOSED)

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