# SDR MALA040537

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 21, 2004
- Submitted: August 24, 2004
- Operation: Air carrier
- Aircraft: N522XJ
- Make and model: Bac AVRO146RJ85A
- Aircraft serial: E2347
- Aircraft time: 11,190 hours, 10,945 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Computer
- Condition: Malfunctioned
- Location: Cockpit
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MALA040537

## Discrepancy

AFTER TAKEOFF TRP FAILED, UNABLE TO RESET.  SUBSEQUENTLY, FTC ELTRIM YD STALL IDNTZ FGC1 YD1 NO CAT 3 ALL ILLUMINATED.  A/P AND A/T FAILED.  AIR RETURN TO DTW.  MAINTENANCE REVEIWED AND CLEARED FAULTS.  PERFORMED HARD RESET AND RTS ON DFGC, Y/D, TRIM SYSTEM, TRP, THRUST CNTRL SYS ALL CHECKS GOOD.

---
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.