# SDR CALA2022022800523

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 28, 2022
- Submitted: February 28, 2022
- Operation: Air carrier
- Aircraft: [N73275](https://openairdocs.org/aircraft/N73275), registered now
- Make and model: Boeing 737-800
- Registry model: [Boeing 737-800](https://openairdocs.org/model/boeing-737-800) (OpenAirDocs)
- Aircraft serial: 31593
- Aircraft time: 63,975 hours, 21,939 cycles
- System (JASC): [2751 · Trailing Flap Position Indicating System](https://openairdocs.org/jasc/2751)
- Part: Flap
- Part number: NA
- Condition: None
- Location: Primary
- Stage of operation: UK
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2022022800523

## Discrepancy

*EMERGENCY DECLARED* PRIMARY FLAPS FAILED  AT FLAP 1.  EXTENDED  FLAPS WITH ALTERNATE FLAP SYSTEM INSPECTED PER AMM 27-51-00-210-801. NO DAMAGE NOTED. PERFORMED FSEU BITE REF FIM 27-51 TASK 801. MSG 27-52259. PERFORMED FAULT ISOATION PER FIM 27-51 TASK 813. NO CURRENT FAULTS. PERFORMED OPERATIONAL TEST OF FLAP SYSTEM REF MM 27-51-00. OP CHECK GOOD. ADD EMP:U332421

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