# SDR QXEA2019072500281

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 23, 2019
- Submitted: July 25, 2019
- Operation: Air carrier
- Aircraft: N453QX
- Make and model: Bombdr DHC8402
- Aircraft serial: 4489
- Aircraft time: 10,185 hours, 10,904 cycles
- System (JASC): [2751 · Trailing Flap Position Indicating System](https://openairdocs.org/jasc/2751)
- Part: Warning System
- Condition: False Activation
- Location: Cockpit
- Part time: 10,185 hours, 10,904 cycles
- Stage of operation: AP
- How discovered: O
- Nature of condition: N
- Precautionary procedure: L
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QXEA2019072500281

## Discrepancy

FLAP POWER CAUTION ILLUMINATED WHEN SELECTING FROM FLAPS 15° TO 35°. CHECKLIST RESET DID NOT WORK. PERFORMED A GO-AROUND. LANDED WITHOUT INCIDENT WITH FLAPS AT 15. REMOVED FROM SERVICE. FOUND ECU CONTINUOUS BIT MSG IN CDS. REF FIM TASK 27-50-00-810-807. CLEARED CDS FAULT MSG AND REMOVED AND REPLACED FLAP CONTROL UNIT AS A PRECAUTIONARY MEASURE IAW AMM TASKS 27-51-01-000-801 AND 27-51-01-400-801. FUNCTIONAL TEST OF FLAP CONTROL SYSTEM GOOD IAW AMM 27-51-00-720-801. NO CDS MSGS OR CAUTIONS NOTED. A/C OKAY FOR CONTINUED SERVICE.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.