# SDR SCNA04003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 28, 2004
- Submitted: January 29, 2004
- Operation: Air carrier
- Aircraft: PHHZC
- Make and model: Boeing 737-800
- Registry model: [Boeing 737-800](https://openairdocs.org/model/boeing-737-800) (OpenAirDocs)
- Aircraft serial: 28375
- Aircraft time: 19,169 hours, 7,305 cycles
- System (JASC): [2200 · Auto Flight System](https://openairdocs.org/jasc/2200)
- Part: Autopilot Sys
- Condition: Malfunctioned
- Location: B System
- Stage of operation: CR
- How discovered: O
- Nature of condition: F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SCNA04003

## Discrepancy

AT 410 AUTOPILOT B FLYING (LNAV/VNAV ENGAGED): AIRCRAFT BANKED LT AT APPROX 20 DEGREES/SECOND. IMMEDIATELY DISCONNTECTED AP.  RECONNECTED AP B AFTER NOT FINDING ANY FMC ABNOMALITIES. NO FURTHER PROBLEMS WERE OBSERVED.  PERFORMED DFCS BITE TESTS IAW 22-11-00 AND NO FAULTS FOUND. CHECKED GOOD.

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